Patent Publication Number: US-11660548-B2

Title: Identification carrier for a toy for reproducing music or an audio story

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a national phase application under 35 U.S.C. § 371 of International Patent Application No. PCT/EP2017/000045 filed Jan. 17, 2017, which claims priority to German Application No. 10 2016 000 631.5 filed Jan. 25, 2016, the entire contents of all of which are incorporated herein by reference for all purposes. 
     FIELD OF THE INVENTION 
     The invention relates to an identification carrier for a toy for replaying music or a spoken story, and a system comprising such an identification carrier, and a toy for replaying music or a spoken story. The invention further relates to a method for replaying music or a spoken story using such a system. 
     BACKGROUND 
     A toy for replaying music or a spoken story, having a loudspeaker or a loudspeaker connection, a sensor that can detect, within a region of its surroundings, a property or a change in a property of said surroundings, along with a control unit that can drive the loudspeaker or the loudspeaker connection to replay music or a spoken story if the sensor detects, within the region of its surroundings, a specific property or a specific change in a property of said surroundings or if the control unit detects a specific change in the property detected by the sensor, is known from WO 2015/104222 A1. It is further known from WO 2015/104222 A1 to combine such a toy with an identification carrier to produce a system in which the identification carrier has a property that can be detected by the sensor when the identification carrier is located within the region of the surroundings of the sensor, or the identification carrier changes a property of the surroundings of the sensor and the sensor can detect this change. As a preferred exemplary embodiment, it is known from WO 2015/104222 A1 that the identification carrier has an RFID transponder or an antenna and is capable of transmitting and/or receiving a modulated wave. It is further known from said document that the sensor is a reader for communicating with a passive RFID transponder and/or for communicating with an active RFID transponder. 
     SUMMARY 
     Against this background, the invention was based on the object of proposing an identification carrier for a toy for replaying music or a spoken story, which identification carrier can be easily recognized by a sensor in the toy. 
     This object is attained by the identification carriers disclosed herein, by the systems disclosed herein, and by the method disclosed herein. Preferred embodiments are described in detail in the following description. 
     The invention proceeds from the basic concept of forming the identification carrier with a standing surface and a magnet that enable the identification carrier to be placed on a surface and, if the surface or the elements adjacent to the surface are configured accordingly, generating an interaction between the magnet of the identification carrier and the surface, or the elements adjacent to the surface, that additionally holds the identification carrier on the surface. It has been recognized that with such a configuration of the identification carrier and such a use of an identification in the identification carrier, which modifies a property of an external magnetic field when it enters the magnetic field, a reduced probability of recognition of the identification results when the magnet is located closer than the identification to the standing surface and/or when a surface normal to the standing surface passes both through the magnet and through the identification. When such an identification carrier is used in a system comprising a toy for replaying music or a spoken story which has a sensor that is able to detect, within the region of its surroundings, a property and a change in a property of a magnetic field acting in the region of the surroundings of said sensor, it is possible that the recognition of the identification when it enters the magnetic field is disrupted by the presence of the additional magnet in the identification carrier. It has been recognized that this disruption becomes less intense or is even eliminated when the magnet is located closer than the identification to the standing surface, and/or at least when a surface normal to the standing surface passes only through the magnet or only through the identification. 
     In one preferred embodiment, the magnet and the identification are arranged spaced by substantially the same distance from the standing surface, with at least one surface normal to the standing surface passing only through the magnet or only through the identification. This allows the magnet and the identification to be positioned as close as possible to the standing surface. 
     In one preferred embodiment, the identification is located closer than the magnet to the standing surface. This makes it possible to move the identification closer to a sensor when the sensor is arranged in the region of a placement surface on which the identification along with its standing surface is placed. 
     The standing surface of the identification carrier is understood as a surface on which the identification carrier can stand. In particular, the standing surface is preferably arranged, or the plurality of partial surfaces that, according to one preferred embodiment, form the standing surface and are not interconnected, are configured such that the center of gravity of the identification carrier lies above the surface that is enveloped by the envelope surrounding the standing surface or the partial surfaces. According to the invention, the identification and the magnet are arranged relative to the standing surface in such a way that the magnet is located closer than the identification to the standing surface. This is understood, in particular, to mean that the shortest distance between the magnet and a point on the standing surface is shorter than the shortest distance between the identification and a point on the standing surface, and these two points need not necessarily be the same points. In one preferred embodiment, the shortest distance between each part of the magnet and a point on the standing surface is shorter than the shortest distance between each part of the identification and a point on the standing surface. However, the advantages according to the invention can be achieved even if the shortest distance between the center of gravity of the magnet and a point on the standing surface is shorter than the shortest distance between the center of gravity of the identification and a point on the standing surface. The advantages of the invention can likewise be achieved even if the shortest distance between the center of volume of the magnet and a point on the standing surface is shorter than the shortest distance between the center of volume of the identification and a point on the standing surface. 
     The invention specifies that at least one surface normal to the standing surface passes only through the magnet or only through the identification. It is desirable for the identification to be arranged offset from the magnet, and not to be covered or to be covered only partially by the magnet. In one particularly preferred embodiment, no surface normal to the standing surface passes through the magnet and the identification. Thus, in this preferred embodiment there are only surface normals to the standing surface that either do not pass through the magnet or through the identification at all, or only surface normals that pass only through a part of the magnet and not through a part of the identification, or surface normals that pass only through a part of the identification and not through a part of the magnet. The advantages of the invention can be achieved in this case even if a surface normal to the standing surface passes through a part of the magnet and through a part of the identification, but not through the part of the identification that modifies the property of an external magnetic field. In one preferred embodiment, an active RFID transponder is used as the identification, for example. Such a transponder typically includes a microchip, an antenna and an energy source, which may be formed by physically distinguishable components. With such an embodiment, the advantages of the invention can be achieved even if no surface normal to the standing surface passes through a part of the magnet and a part of the antenna of the active RFID transponder. With such a configuration, it would not cause impairment for the surface normal to the standing surface to pass through a part of the magnet and a part of the microchip or a part of the energy source. 
     However, the advantages of the invention can also be achieved even if no surface normal to the standing surface passes through the center of gravity of the magnet and the center of gravity of the part of the identification that brings about the change in the property of a magnetic field. The advantages of the invention can likewise be achieved even if no surface normal to the standing surface passes through the center of volume of the magnet and the center of volume of the part of the identification that brings about the change in a property of an external magnetic field when it enters the magnetic field. 
     The advantages of the invention are likewise achieved if there is at least one surface normal to the standing surface that passes through the part of the identification that brings about the change in the property of an external magnetic field when said part enters the magnetic field, but that does not pass through a part of the magnet. 
     The advantages of the invention can likewise be achieved if the envelope of the largest cross-section of the magnet in terms of surface area in a plane parallel to the standing surface, overlaps less than 100% in the viewing direction toward the surface normal to the standing surface with the envelope of the largest cross-section of the identification in a plane parallel to the standing surface, particularly preferably the largest cross-section in a plane parallel to the standing surface of the part of the identification that brings about the change in the property of the external magnetic field when said part enters the magnetic field. Particularly preferably, this overlap is less than 80%, particularly preferably less than 60%, particularly preferably less than 50%, particularly preferably less than 40%, particularly preferably less than 30% and particularly preferably less than 20%. 
     In the preferred embodiment of the identification, the part of the identification that changes the property of an external magnetic field when said part enters the magnetic field is understood as an RFID transponder, particularly preferably the antenna of such an RFID transponder, for example a passive RFID transponder, and also as an active RFID transponder. 
     In one preferred embodiment, the standing surface, or the plurality of partial surfaces provided in one preferred embodiment that are not interconnected and together form the standing surface, lie/lies within one plane. As a result, such an identification carrier is easily able to stand on a flat surface of a toy for replaying music or a spoken story. Also conceivable, however, are embodiments in which the standing surface does not lie within one plane. Such embodiments are used, in particular, when the identification carrier and the toy for replaying music or a spoken story are to be embodied such that the identification carrier will be placed at a certain location and in a certain orientation on the toy for replaying music or a spoken story. In that case it may be expedient to adapt the standing surface of the identification carrier to match a certain non-planar surface shape of the toy. For example, the standing surface of the identification carrier may be embodied as the surface of a spherical segment or a spherical layer, and the toy for replaying music or a spoken story may have a corresponding opening. The spherical segment-shaped standing surface of the identification carrier, or the spherical layer-shaped standing surface of the identification carrier would then be placed in said opening in order to replay music or a spoken story. Comparable embodiments include standing surfaces in the shape of a cone or a truncated cone, or the geometric inverse shapes to such embodiments, i.e. for example a spherical segment on the toy for replaying music or a spoken story and a standing surface on the identification carrier that delimits a spherical opening on the identification carrier. Other geometric shapes for such a key/keyhole interaction between the standing surface of the identification carrier and a corresponding surface shape of the toy for replaying music or a spoken story are also conceivable. The advantages of the invention can also be achieved with such embodiments if the standing surface of the identification carrier does not lie within one plane. In particular, the advantages of the invention are achieved with such embodiments in particular if at least one straight line extending from a point on a standing surface configured as such in a direction parallel to the center surface normal passes only through the magnet or only through the identification. In that case, the direction of the center surface normal is understood as the direction that results when the mean of the directions of all surface normals of the standing surface is calculated. 
     In one preferred embodiment, the standing surface is composed of a plurality of partial surfaces that are not interconnected. In one particularly preferred embodiment, the external shape of the identification carrier according to the invention is in the form of a figure. Figures, for example human figures or animal figures that have feet, have surfaces beneath the feet that are not interconnected if the figure is formed with the feet spaced apart. The standing surface of such a figure is made up of these partial surfaces. It is also conceivable for the figures to include additional elements that form a surface, which can contribute to the standing surface as a partial surface, for example if the figure is holding an element in its hands against which the figure is additionally supported, for example a rod or a musical instrument. 
     In one preferred embodiment, the identification includes an antenna and/or a receiver and/or transmitter for a modulated electromagnetic wave. Particularly preferably, the identification carrier includes an RFID transponder. Particularly preferably, the RFID transponder includes a coil, preferably a copper coil, which has a ferrite core. 
     In one preferred embodiment, the identification carrier has an RFID transponder or an antenna with which a modulated wave can be emitted and/or received. This enables the identification carrier according to the invention to be configured, for example, such that it can communicate with the toy via the Bluetooth standard, the NFC standard or some other wireless standard. Particularly the use of these technologies allows a diversity of communication possibilities between the identification carrier and the toy. In particular, the use of these technologies allows a multiplicity of identifications to be recognized. It thereby becomes possible for the system according to the invention to select the audio information that is intended to be replayed from a multiplicity of audio information elements, for example if each element of audio information to be replayed is assigned its own identification, for example in an assignment table stored in the system according to the invention or on a server. 
     Alternatively, it is conceivable for the identification carrier to have a magnet, for example, which generates a magnetic field of a specific strength if the identification carrier is moved into the region of the surroundings of a sensor in the toy. It is likewise possible to use a magnet to generate a magnetic field having a field direction that deviates from a preferred direction. 
     In one preferred embodiment, the magnet is a disk magnet or a rod magnet. Particularly preferably, the magnet is not a ring magnet. The magnet of the identification carrier offers the advantage, in particular, that the identification carrier is able to adhere to a correspondingly configured toy by virtue of the magnet. This also enables the toy to be moved with the identification carrier placed on it, without the identification carrier losing a specific relative position relative to the toy. However, the advantage that is achieved by the provision of a magnet as part of the identification carrier also entails the risk of a decrease in recognition precision of the identification. It is therefore preferred in particular for the magnet to occupy a small volume, which can be achieved by using a disk magnet or a rod magnet as opposed to a ring-shaped magnet. 
     The influences of the magnet of the identification carrier that interfere with the recognition of the identification of the identification carrier can also be reduced by positioning the identification carrier closer to the standing surface than to the identification. Preferably, in particular, the distance between the identification carrier and the identification is twice as great, particularly preferably three times as great, particularly preferably four times as great, particularly preferably ten times as great as the distance between the magnet and the identification, wherein according to a preferred embodiment, the distances of the centers of gravity or the centers of volume of the magnet from the part of the identification that brings about the change in the property of the external magnetic field are set aside when said part of the identification enters the magnetic field. 
     In one preferred embodiment, the identification carrier includes more than one magnet. The above-described design rule for the positioning of the magnet and the identification, or the part of the identification that brings about the change in the property of the external magnetic field when said part enters the magnetic field, applies in one preferred embodiment for each magnet of the identification carrier. However, the advantages of the invention are achieved in an identification carrier having a plurality of magnets even if the above-described design rule is followed in only one magnet of the plurality of magnets of the identification carrier. In particular with identification carriers that have a standing surface composed of a plurality of partial surfaces that are not interconnected, according to one preferred embodiment, it may be advantageous to provide a plurality of magnets, specifically to provide one magnet assigned to each partial surface. 
     Supplementarily or alternatively, an identification carrier for a toy for replaying music or a spoken story, having a standing surface, a first identification, wherein the first identification is capable of changing a property of an external magnetic field when it identification enters the magnetic field, and a second identification, wherein the second identification changes a property of an external magnetic field when it enters the magnetic field is proposed, in which the first identification is arranged closer than the second identification to the standing surface. By using two identifications it is possible to influence the external magnetic field in different ways. This different mode of influence may be used, for example, for an operating concept. 
     In one preferred embodiment, the identification carrier has two standing surfaces, spaced apart from one another and preferably aligned with divergent surface normals. In one preferred embodiment, one identification is positioned closer to one standing surface and the other identification is positioned closer to the other standing surface. 
     If such an identification is used in a system having a placement surface and a sensor located near the placement surface, one identification can be positioned closer to the sensor when the identification is placed with one standing surface on the placement surface, while the other identification can be positioned closer to the sensor when the identification is placed with the other standing surface on the placement surface. In such a system, a sensor can be used that is able to detect, within the region of its surroundings, a specific property or a specific change in a property of the magnetic field acting in the region of its surroundings. In such an embodiment, an operating concept can be implemented in which a first piece of audio information, for example a question, is replayed when the identification is standing with one standing surface on the placement surface, whereas another piece of audio information, for example a response, is replayed when the identification is standing with the other standing surface on the placement surface. 
     In one preferred embodiment, such an embodiment having two identifications has one magnet. In one preferred embodiment, the identification has a single magnet. In an alternative embodiment, the identification has at least two magnets, one magnet arranged closer to one standing surface and one magnet arranged closer to the other standing surface. 
     In one preferred embodiment, the external shape of the identification carrier has the form of a figure. The figure may be an animal figure, a human figure or a fantasy figure, for example. 
     Supplementarily or alternatively, an identification carrier for a toy for replaying music or a spoken story is proposed, having a body, a magnet arranged within the body and an identification arranged within the body, in which case the body consists of at least one first part and one second part. In one preferred embodiment, the magnet and the identification may be located within the same part. Particularly preferably, however, the magnet is located within the first part of the body and the identification is located within the second part of the body. With an embodiment of this type, the aforementioned teaching can be implemented particularly well. 
     According to one preferred embodiment, the one part has a projection that engages in an opening in the other part. In one preferred embodiment, the first part has a projection that engages in an opening in the second part and the second part has a projection that engages in an opening in the first part. 
     In one preferred embodiment, the first part is connected to the second part. A connection of this type may be force-fitting, for example by the use of an adhesive. Supplementarily or alternatively, the connection may be frictional, in particular in that a projection of one part engages with a snug fit in an opening in the other part. 
     Within the context of the description of the invention, a geometric main body is understood as a body in the form of a die, a cube, an oblique cube, a pyramid, a truncated pyramid, a cylinder, a hollow cylinder, a cone, a truncated cone, a sphere, a spherical segment, a spherical section, a spherical sector, a sphere through which a cylinder is bored, a sphere through which a cone is bored, a tapered ring, an obliquely cut cylinder, a cylindrical hoof, a barrel or an ellipsoid. In one preferred embodiment, the first part of the body has a three-dimensional shape overall that does not correspond to a geometric main body, although its entire three-dimensional shape may be composed of geometric main bodies or may contain geometric main bodies. In a supplementary or alternative preferred embodiment, the second part of the body has a three-dimensional shape overall that does not correspond to any geometric main body, although its entire three-dimensional shape may be composed of geometric main bodies or may contain geometric main bodies. In one particularly preferred embodiment, one of the parts has a projection which has a three-dimensional shape that corresponds to a geometric main body, or that corresponds to a geometric main body at least for a portion of its extension. For example, the part of the body may have a cylindrical, a conical, or a truncated-conical projection. In one preferred embodiment, the other part has an opening, the three-dimensional shape of which corresponds at least approximately to the geometric inverse of the projection of the one part, for example a cylindrical opening. In that case, it must be factored in that a degree of clearance may be provided to facilitate insertion of the projection. Alternatively, a press fit may be provided, to generate a frictional connection between projection and the walls surrounding the opening. 
     In one preferred embodiment, the magnet is arranged in the first part of the body, and according to a preferred embodiment it is arranged close to or at the base of an opening of said first part. In the preferred embodiment, the second part has a projection that engages into the opening of the first part when first and second parts are joined. In one preferred embodiment, the extension of the projection relative to the length of the recess and the size of the magnet located at the base of the recess is selected such that the projection holds the magnet close to or at the base of the opening without rattling, or according to a preferred embodiment, even presses the magnet into the base of the recess by the weight of the projection above it. 
     In one preferred embodiment, the identification is arranged in the second part of the body, and according to one preferred embodiment, is arranged close to the base of an opening in this second part. In the preferred embodiment, the first part has a projection that engages in the opening of the second part when the first and second parts are joined. In one preferred embodiment, the extension of the projection relative to the length of the recess and the size of the identification located at the base of the recess are selected such that the projection holds the identification close to or at the base of the opening without rattling, or according to one preferred embodiment, even presses the identification into the base of the recess by the weight of the projection above it. 
     Supplementarily and alternatively, an identification carrier for a toy for replaying music or a spoken story, having a body, a magnet arranged within the body, and an identification arranged within the body is proposed, in which the body includes at least one material that is at least 50% biodegradable. Particularly preferably, the body includes at least one material that is 100% biodegradable. Biodegradable in this context is understood as the capability of the material to degrade biologically, i.e. to decompose under the action of living organisms or the enzymes thereof. It is conceivable for the body of the identification carrier to be produced from a mixture of materials. According to this aspect of the invention, at least one of the materials of this mixture is at least 50% biodegradable. In one preferred embodiment, the body is produced by means of an injection molding process or a 3D printing process. In one preferred embodiment, the material used for the injection molding or the 3D printing can itself be at least 50% biodegradable, particularly preferably 100% biodegradable. However, the advantages of the invention are achieved even if the material used for the injection molding or for the 3D printing consists of a mixture of materials, at least one of which is at least 50%, in particular 100% biodegradable. 
     Supplementarily and alternatively, an identification carrier for a toy for replaying music or a spoken story, having a body, a magnet arranged within the body, and an identification arranged within the body is proposed, in which the body includes at least one material that is produced from a renewable raw material. It is conceivable for the body of the identification carrier to be produced from a mixture of materials. According to this aspect of the invention, at least one of the materials of this mixture is produced from a renewable raw material. In one preferred embodiment, the body is produced by means of an injection molding process or a 3D printing process. In one preferred embodiment, the material used for the injection molding or the 3D printing can itself be produced entirely from renewable raw materials. However, the advantages of the invention are achieved even if the material used for the injection molding or for the 3D printing consists of a mixture of materials, at least one of which is produced from renewable raw materials. 
     Also conceivable are embodiments in which additional layers of material, in particular paints or varnishes, are applied to the body. 
     In one preferred embodiment, the body includes at least one material as described in DE 10 2010 052 878 A1 and/or WO 2012/110237 A1, the full disclosure of which regarding materials used to produce molded polymer parts is incorporated herein by reference and which represents parts of the description of the present invention. 
     The system according to the invention comprises an identification carrier according to the invention and a toy for replaying music or a spoken story, having a loudspeaker or a loudspeaker connection along with a sensor, which is able to detect, within a region of its surroundings, a property and a change in a property of a magnetic field acting in the region of its surroundings. The system further comprises a control unit, which can drive the loudspeaker or the loudspeaker connection to replay music or a spoken story if the sensor detects, within the region of its surroundings, a specific property or a specific change in a property of the magnetic field acting in the region of its surroundings, or if the control unit detects a specific change in the property detected by the sensor. 
     A system according to the invention includes an identification carrier according to the invention and a device for replaying an image, video or piece of 3D information on a display for an image, video or piece of 3D information, or a connection for such a display, along with a sensor, which is able to detect, within a region of its surroundings, a property and a change in the property of a magnetic field acting in the region of its surroundings. The system further includes a control unit, which can drive the display for an image, video or piece of 3D information, or a connection for such a display, if the sensor detects, within the region of its surroundings, a specific property or a specific change in a property of the magnetic field acting in the region of its surroundings, or when the control unit detects a specific change in the property detected by the sensor. 
     A system according to the invention includes an identification carrier according to the invention and a device for executing software using a processor that can execute the software, along with a sensor that is able to detect, within the region of its surroundings, a property and a change in the property of a magnetic field acting in the region of its surroundings. The system further includes a control unit which can drive the processor to execute the software if the sensor detects, within the region of its surroundings, a specific property or a specific change in a property of the magnetic field acting in the region of its surroundings, or if the control unit detects a specific change in the property detected by the sensor. 
     An alternative system according to the invention includes an identification carrier for a toy for replaying music or a spoken story, comprising
     a standing surface   a magnet and   an identification, wherein the identification changes a property of an external magnetic field when it enters the magnetic field, and the magnet is arranged closer to the standing surface, and
 
a toy for replaying music or a spoken story, comprising
   a loudspeaker or a loudspeaker connection,   a sensor, which is able to detect, within a region of its surroundings, a property or a change in a property of a magnetic field acting in the region of its surroundings,   a control unit, which can drive the loudspeaker or the loudspeaker connection to replay music or a spoken story if the sensor detects, within the region of its surroundings, a specific property or a specific change in a property of the magnetic field acting in the region of its surroundings, or if the control unit detects a specific change in the property detected by the sensor, and   a placement surface, wherein the identification carrier can be positioned with its standing surface on the placement surface in such a way that the magnet of the identification carrier covers the identification by less than 100% in a viewing direction that extends along the line leading from the sensor of the toy to the identification.   

     In one particularly preferred embodiment, when the identification carrier is standing with its standing surface on the placement surface, the magnet of the identification carrier covers the identification by less than 90%, particularly preferably by less than 70%, particularly preferably less than 60%, particularly preferably less than 50%, particularly preferably less than 40%, particularly preferably less than 30%, and particularly preferably less than 20%, in a viewing direction that extends along the line leading from the sensor of the toy to the identification. The advantages of the invention can be achieved even if, when the identification carrier is standing with its standing surface on the placement surface, the magnet of the identification carrier covers the part error of the identification that brings about the change in the property of the external magnetic field when said part enters the magnetic field, by less than 100%, in particular by less than 90%, particularly preferably by less than 70%, particularly preferably less than 60%, particularly preferably less than 50%, particularly preferably less than 40%, particularly preferably less than 30%, and particularly preferably less than 20%, in a viewing direction that extends along the line leading from the sensor of the toy to the identification. The line that leads from the sensor of the toy to the identification is understood, in particular, as the line that connects the center of gravity of the sensor to the center of gravity of the identification, or as the line that connects the center of volume of the sensor to the center of volume of the identification. 
     As part of the toy, hereinafter also called the device, a sensor is used, which is able to detect, within a region of its surroundings, a property or a change in a property of these surroundings, and a control unit is provided, which can perform the desired driving if the sensor detects, within the region of its surroundings, a specific property or a specific change in a property of said surroundings. A device comprising said sensor and said control unit and also a method that uses such a sensor and such a control unit lead to particularly simple operation. For replaying the desired information, or for executing the software, it may suffice according to the invention to impart to the surroundings a specific property detectable by the sensor, or to carry out a change—detectable by the sensor—in the property of said surroundings and thus—in one particularly preferred embodiment of the invention—to bring about directly the replaying of the desired information, or the execution of the software. 
     The simplified operating concept provided by the invention can be implemented particularly well in a toy for replaying music or a spoken story. However, it has been found that the simplified operating concept also affords advantages generally in a device for replaying audio information and even also in a device for replaying image, video or 3D information or a device for executing software. The following description—unless explicitly describing the special features of the replay of image, video or 3D information or of the execution of software or explicitly describing special features that are relevant only to the replay of audio information—describes the invention on the basis of the preferred area of use of replaying audio information in a manner representative of the further areas of use of use as a toy, replaying image, video or 3D information or executing software. For the area of use of replaying image, video or 3D information, in so far as the following description describes the driving of the loudspeaker or of the loudspeaker connection, this is also taken to mean the driving of the display or of the connection for the display for replaying image, video or 3D information. For the area of use of executing software, in so far as the following description describes the driving of the loudspeaker or of the loudspeaker connection, this is also taken to mean the driving of the processor for executing the software. The toy constitutes one preferred embodiment of a device for replaying audio information which in particular is concretized by the fact that the audio information to be replayed is music or a spoken story. 
     The device according to the invention and the method according to the invention can be used—comparably to an MP3 player of the conventional type—for replaying audio information based on information stored on the MP3 player. The use of CDs is avoided as a result. At the same time, the invention simplifies the operating concept of the conventional MP3 players. In one preferred embodiment of the invention, just setting a specific property, or a specific change in a property of the surroundings of the sensor can lead to the immediate replay of the audio information. The operating concept that is often laborious particularly for children in the case of conventional MP3 players is obviated as a result. As a result, the device according to the invention and the method according to the invention are particularly well suited to use in children&#39;s toys. However, the simplified operating concept also affords the possibility of replaying audio information for adults in a particularly simple manner. 
     One area of use of the invention is the replay of audio information, in particular of pieces of music, spoken texts or the combination of pieces of music and spoken texts. Said audio information has particularly preferably a replay duration of at least 10 s, with preference of more than 15 s, particularly preferably of more than 20 s, and especially preferably of more than 25 s. In one particularly preferred embodiment it is even provided that the replay duration of the audio information may last at least 30 s and particularly preferably more than 1 min. By way of example, radio plays, which are intended particularly preferably to be replayed by means of the invention, often have a length of more than 5 min, in some instances also of up to 30 min or even more. The audio information to be replayed according to the invention is, in particular, not a confirmation signal. In particular, the audio information to be replayed according to the invention is not an acknowledgement sound that may be output, for example, if a first object has been aligned correctly relative to a second object. Likewise, the audio information is particularly preferably not a jingle played if a first object is brought into the vicinity of a second object or is brought into a previously defined, specific position relative to the second object. The invention is concerned with the audio information whose replay duration lasts for a relatively long time, as is the case for pieces of music or spoken texts. The audio information is particularly preferably such audio information whose replay involves replaying a non-periodic sequence of different sounds. 
     The loudspeaker of the device according to the invention is particularly preferably a transducer that can convert electrical signals into mechanical oscillations (sound). 
     The device according to the invention may also comprise instead of a loudspeaker a loudspeaker connection, for example a Speakon, XLR connection or a 6.35 mm jack socket, for example. By virtue of the fact that the control unit drives the loudspeaker connection, in the event of a loudspeaker being connected to the loudspeaker connection said control unit can also drive said loudspeaker. The loudspeaker connection may also be a transmitting unit that can communicate with a loudspeaker via radio, for example, via Bluetooth or via a WLAN radio network. Particularly preferably, however, the transmitting unit does not communicate with the loudspeaker by means of a WLAN radio network, but rather via Bluetooth, for example. Likewise, the device may comprise, as loudspeaker connection or as connection for the display for replaying image, video or 3D information, a connection compatible with a docking station of a smartphone. Docking stations for smartphones can be used to drive a loudspeaker or a display for replaying image, video or 3D information on the basis of drive commands of the smartphone. By virtue of the fact that the device according to the invention comprises a connection compatible with such a docking station and is connected to the docking station instead of the smartphone, the control unit of the device according to the invention acquires the possibility of driving the loudspeaker connected to the docking station or the display—connected to the docking station—for replaying image, video or 3D information. The docking station can be connected to the loudspeaker or the display for replaying image, video or 3D information by means of cables. However, the docking station can also be connected to the loudspeaker or the display for replaying image, video or 3D information wirelessly, for example via a radio network. The following description—unless explicitly describing the special features of the driving of a loudspeaker connection or of a connection for a display for replaying image, video or 3D information—describes the invention on the basis of the preferred area of use of the driving of a loudspeaker in a manner representative of the further possibilities of the driving of a loudspeaker connection or of a connection for a display for replaying image, video or 3D information. For the area of use of the driving of a loudspeaker connection or of a connection for a display for replaying image, video or 3D information, in so far as the following description describes driving the loudspeaker or a display for replaying image, video or 3D information, this is also taken to mean driving a loudspeaker connection or a connection for a display for replaying image, video or 3D information. 
     In one preferred embodiment, the device according to the invention comprises at least two loudspeakers, such that a replay of the audio information in stereo becomes possible. 
     In the case of the device according to the invention, it is possible to use a sensor that can detect a property within a region of its surroundings. It is likewise possible to use a sensor that can detect within a region of its surroundings a change in a property of said surroundings. It is likewise possible to use a sensor that both can detect a property within a region of its surroundings and can detect within a region of its surroundings a change in a property of said surroundings. 
     The identification of the identification carrier according to the invention changes the property of an external magnetic field when it enters the magnetic field. In one preferred embodiment, the identification changes the strength and/or the orientation of an existing external magnetic field when it enters the magnetic field, the external magnetic field being understood both as the earth&#39;s magnetic field and as a magnetic field that results from the superposition of the earth&#39;s magnetic field and a magnetic field generated by the presence of an element that generates a magnetic field. A change in the property of the magnetic field brought about by the entry of the identification into the magnetic field can also be induced by the entry of an element that influences the electromagnetic waves. For example, the change in the electromagnetic wave emitted by a sensor configured as a transmitter, brought about by the entry of an RFID transponder, is also understood within the scope of this invention as a change in a property of the external magnetic field. 
     In one preferred embodiment, the sensor can detect for example the strength of a magnetic field in a specific region of its surroundings; the sensor can generate a signal dependent on the strength of said magnetic field, said signal being fed to the control unit. If the control unit recognizes that the signal attains a specific, predefined value, then the control unit recognizes that the sensor detected within the region of its surroundings a specific property, namely a specific strength of a magnetic field. The control unit can thereupon drive the loudspeaker for replaying audio information. 
     In a supplementary or alternative exemplary embodiment, the sensor can detect the change in the strength of the magnetic field within a region of its surroundings and for example generate a signal that is fed to the control unit, said signal being dependent on the rate of change of the magnetic field strength or the direction of the magnetic field strength (is the magnetic field becoming stronger or weaker?). If the control unit to which the signal is fed recognizes that the change attains a specific value, then the control unit can drive the loudspeaker for replaying the audio information. 
     In a supplementary or alternative embodiment, the sensor can detect that a magnetic field in a specific region of its surroundings has a specific field direction relative to a preferred direction. Particularly preferably, the sensor can detect that the magnetic field does not have the preferred direction. With particular preference, the sensor can even detect the angle of the field direction of the magnetic field relative to a preferred direction. In this embodiment, the sensor can convey to the control unit by means of a signal the fact that the field direction of the magnetic field does not correspond to the preferred direction. Just on the basis of this signal, the control unit can drive the loudspeaker for replaying the audio information. In an alternative embodiment, the sensor can even convey to the control unit by means of a signal the angle of the field direction of the magnetic field in relation to the preferred direction. It is then possible to stipulate that the control unit drives the loudspeaker for replaying audio information if the field direction of the magnetic field is at a specific angle relative to the preferred direction. 
     Exemplary embodiments are likewise conceivable in which the control unit evaluates a signal of the sensor that is dependent on the angle of the field direction of the magnetic field relative to the preferred direction, and drives the loudspeaker for replaying the audio information if the field direction of the magnetic field changes in a specific manner relative to the preferred direction, for example changes in a specific direction relative to the preferred direction or changes for example at a specific rate relative to the preferred direction, or alternatively has a change profile relative to the preferred direction over a predetermined time period, wherein change profile is understood to mean, in particular, a temporal succession of different angles assumed by the field direction of the magnetic field relative to the preferred direction. 
     The property—to be detected by the sensor—of a region of its surroundings is also understood to mean according to the invention the presence of an electromagnetic wave, preferably temporally invariant with regard to its properties, in the region of the surroundings of the sensor or the presence of a metallic structure, for example, which influences an electromagnetic wave present. Exemplary embodiments are conceivable in which the sensor is configured in such a way that it can detect the presence of a specific electromagnetic wave, for example can recognize the presence of an electromagnetic wave having a specific velocity, specific intensity, a specific wave impedance, a specific wavelength and/or a specific frequency. The sensor may also be configured such that it can detect a structure that can influence a specific electromagnetic wave, for example an electromagnetic wave having a specific velocity, specific intensity, a specific wave impedance, a specific wavelength and/or a specific frequency. If the sensor recognizes such an electromagnetic wave or such a structure, it can convey this to the control unit by means of a signal. Supplementarily or alternatively, the sensor may be designed in such a way that it can measure the velocity, the intensity, the wave impedance, the wavelength and/or the frequency and can convey the respective value of the recognized variable and/or the change in the respectively recognized variable to the control unit by means of a signal. The electromagnetic wave recognized by the sensor is particularly preferably not an electromagnetic wave having a wavelength or frequency in the spectrum visible to the human eye and/or from the infrared spectrum. Particularly preferably, the influencing by a structure as recognized by the sensor does not concern an electromagnetic wave having a wavelength or frequency in the spectrum visible to the human eye and/or from the infrared spectrum. The electromagnetic wave recognized by the sensor is particularly preferably not an electromagnetic wave of a WLAN radio network, in particular not a wave of a radio network according to a standard in the IEEE 802.11 family. Particularly preferably, the influencing by a structure as recognized by the sensor does not concern an electromagnetic wave of a WLAN radio network, in particular not a wave of a radio network according to a standard in the IEEE 802.11 family. 
     The change—to be detected by the sensor—in a property of a region of its surroundings is particularly preferably understood to mean the change in a property of an electromagnetic wave. While the preceding section described the presence of a specific electromagnetic wave, preferably temporally invariant with regard to its properties, as the property—to be detected by the sensor—of the region of its surroundings, the text below describes the possibility that an existing electromagnetic wave can be adapted and as a result a change—to be detected by the sensor—in a property of a region of its surroundings is generated on the basis of which the control unit can drive the loudspeaker for replaying the audio information. An electromagnetic wave can be generated for example by a reader for communicating with a passive RFID transponder and be changed by virtue of the passive RFID transponder being brought into a region of the surroundings of the reader in which its presence changes the electromagnetic wave. The change in the electromagnetic wave that is brought about by the introduction of the RFID transponder can be recognized by the sensor as a change in a property of a region of its surroundings. The possibility of recognizing changes in an electromagnetic wave makes it possible for the invention to bring about the specific change—necessary for driving the loudspeaker—in a property of the region of the surroundings of the sensor by means of a radio signal or a modulated wave. Particularly preferably, the electromagnetic wave whose change is recognized is not an electromagnetic wave of a WLAN radio network, in particular not a wave of a radio network according to a standard in the IEEE 802.11 family. 
     In one preferred embodiment, the sensor detects a property within a region of its surroundings or a change in a property within a region of its surroundings without direct electrical contact with a component bringing about the property or the change. In a supplementary or alternative embodiment, the sensor detects a property within a region of its surroundings or a change in a property within a region of its surroundings without direct mechanical contact with a component bringing about the property or the change. For the device according to the invention this affords the advantage that the audio information can already be replayed if the operator only sets the property in the relatively close surroundings of the device in a predetermined manner or changes it in a predetermined manner. This obviates the need, for the purpose of replaying the audio information, to bring an object into contact in a specific manner with the device according to the invention for replaying the audio information, for example to introduce a key element into a receptacle provided in the device or to plug for example a USB memory stick into a USB receiving socket in a manner known from the prior art. In particular an antenna, an inductive sensor, a magnetic field sensor or a temperature sensor that can detect radiation in the infrared spectrum are suitable for contactlessly detecting a property of a region of the surroundings of the sensor, or for contactlessly detecting a change in a property of a region of the surroundings of the sensor. However, it is also conceivable for the sensor to be a capacitive sensor, a piezoelectric sensor, an ultrasonic transducer or electrochemical sensor. 
     In an alternative embodiment, the sensor is not embodied as a temperature sensor that can detect radiation in the infrared spectrum. In an alternative embodiment, the sensor is not embodied as an antenna. In an alternative embodiment, the sensor is not embodied as a capacitive sensor. In an alternative embodiment, the sensor is not embodied as a piezoelectric sensor. In an alternative embodiment, the sensor is not embodied as an ultrasonic transducer. In an alternative embodiment, the sensor is not embodied as an electrochemical sensor. In an alternative embodiment, the sensor is not embodied as an optoelectronic sensor. 
     The device according to the invention and the method according to the invention, in terms of their operating concept, may be based on the fact that the sensor detects a specific, concrete property or a specific change in said property, or may be based on the fact that the control unit recognizes, from the measurement signal fed to it by the sensor, that within the region of the surroundings of the sensor a specific property is present or a specific change in a property is present. By way of example, the device according to the invention and the method according to the invention may be based on the fact that a magnetic field in the region of the surroundings of the sensor has a specific absolute value of the magnetic field strength or the field direction of the magnetic field has a specific angle with respect to a preferred direction. Since, in one preferred embodiment, however, the device according to the invention and the method according to the invention are intended to be used to replay a multiplicity of different items of audio information and the choice of the audio information to be replayed is intended to be dependent on the presence of a respective concrete property or a respective concrete change in the property in the region of the surroundings of the sensor, in this embodiment there is the restriction that only a limited number of items of audio information can be replayed. If the device according to the invention is embodied for example such that a first piece of music is replayed if the strength of the magnetic field in the region of the surroundings of the sensor assumes a first value and a second piece of music is replayed if the magnetic field in the region of the surroundings of the sensor has a second strength, then the number of items of audio information that can be replayed by the device depends on what maximum and what minimum field strength values the sensor can detect and how fine are the increments that can be detected by the sensor. The property of the surroundings or the change in the property of the surroundings is therefore also understood in particular to mean a modulated wave, in particular an electromagnetic wave, in particular an electromagnetic wave in the radio-frequency range, but particularly preferably not an electromagnetic wave of a WLAN radio network, in particular not a wave of a radio network according to a standard in the IEEE 802.11 family. As a result, for the device according to the invention there is the possibility of detecting the presence of a passive RFID transponder in a specific region of the surroundings of the sensor and of performing the replay of the audio information for example if an RFID transponder is actually present at all in the region of the surroundings of the sensor, or of performing a replay of the audio information if a specific RFID transponder is detected in the region of the surroundings of the sensor. Likewise, in one preferred embodiment, it is provided that the property to be detected by the sensor in the region of its surroundings or the change—to be detected by the sensor—in the property of the region of its surroundings is brought about by an active RFID transponder. It is likewise conceivable for the presence of an electromagnetic wave according to the Bluetooth standard or the presence of an electromagnetic wave according to the near field communication standard (NFC) to be detected as the property. It is likewise conceivable for the change to be detected in the property of the region of the surroundings of the sensor to be provided by an electromagnetic wave according to the Bluetooth standard or according to the NFC standard and to be detected by the sensor. In one preferred embodiment, however, the sensor is designed such that it cannot detect the presence of an electromagnetic wave according to the Bluetooth standard or the presence of an electromagnetic wave according to the near field communication standard (NFC) and/or that it cannot detect the change in an electromagnetic wave according to the Bluetooth standard or according to the NFC standard. 
     Particularly preferably, an identification is communicated via the electromagnetic wave, with which identification the control unit can identify a data set stored in a memory of the device according to the invention or on a server and, on the basis of the data set, can drive the loudspeaker for replaying the audio information. Particularly preferably, the electromagnetic wave communicates no data that can be converted by the control unit into a customary audio format suitable for driving the loudspeaker, for example MPEG 3 or WAV. In the preferred embodiment, the aim is for the electromagnetic wave to make a data set identifiable, for example by transmitting an identification, but not itself to transmit the data set. In an alternative embodiment, the electromagnetic wave transmits the entire data of the audio information. As a result, the device can play back audio information that was not stored before the corresponding detection by the sensor in the device. Alternatively, the electromagnetic wave transmits a portion of the data, for example the data required for the replay of the first seconds or minutes of the audio information, while the data required for the replay of the further audio information are stored in a memory of the device according to the invention or on a server and can be identified by means of an identification. In one preferred embodiment of this alternative embodiment, however, the electromagnetic wave transmits only the portion of the data required for the replay of the first minute, particularly preferably the first 30 s, particularly preferably the first 10 s, of the audio information, while the data required for the replay of the further audio information are stored in a memory of the device according to the invention or on a server and can be identified by means of an identification. 
     In one preferred embodiment, the sensor is therefore a reader for communicating with a passive RFID transponder and/or for communicating with an active RFID transponder. In an alternative embodiment, the sensor has an antenna that can emit and/or receive a modulated wave, in particular a wave according to the Bluetooth or NFC standard. 
     The device may comprise a support (placement surface) on which an article can be permanently positioned, wherein the sensor can detect at least in a region above the support a property or a change in a property of said region, and/or a securing means on which an article can be permanently secured, wherein the sensor can detect at least in a region adjacent to the securing means a property or a change in a property of said region. In this regard, an article, for example the identification carrier according to the invention, can be positioned such that it is situated in the detection region of the sensor in which the sensor can detect a property or a change in a property of said region. This has the advantage that the article can remain in the detection region, without the article or the device having to be permanently held fixedly by a user. The securing means may be embodied for example by a hanging, clicking, magnetic, rotary mechanism or in some other way. 
     The control unit of the device according to the invention can drive the loudspeaker for replaying the audio information if the sensor detects within the region of its surroundings a specific property or a specific change in a property of said surroundings or the control unit detects a specific change in the property detected by the sensor. In one preferred embodiment, the sensor generates a signal having a value detectable by the control unit if the sensor detects within the region of its surroundings a specific property or a specific change in a property. It is also conceivable, for example, for the sensor to generate a signal that is fed to the control unit only if the sensor detects within the region of its surroundings a specific property or a specific change in a property of said surroundings. Such embodiments have the effect that the sensor already performs the evaluation and either feeds a signal to the control unit only if it detects a specific property or a specific change in a property of the surroundings, or else feeds to the control unit a permanent signal having a specific value, which signal is changed to a specific other value detectable by the control unit if the sensor detects within the region of its surroundings a specific property or a specific change in a property of said surroundings. Supplementarily or alternatively, it is conceivable for the control unit to perform the evaluation. In such an embodiment, the sensor permanently feeds a measurement signal to the control unit. The control unit is designed, for example by virtue of the storage of a table of values, to recognize from the measurement signal fed to it by the sensor whether a specific property or a specific change in a property is present within the region of the surroundings of the sensor. In this case, the change in the property of the surroundings of the sensor is understood to mean not only the single occurrence of a specific change, for example the single occurrence of a change in the field direction of the magnetic field in the surroundings of the sensor in a specific direction, but also a temporal succession of properties in the region of the surroundings of the sensor, or a specific succession of changes in the properties of the surroundings of the sensor, for example as is the case when reading out modulated waves or when evaluating electromagnetic waves. 
     In one preferred embodiment, the control unit drives the loudspeaker for replaying the audio information only if the sensor detects within the region of its surroundings a specific change in a property of said surroundings in the form of a specific succession of changes in the properties, or if the control unit detects a specific change in the property detected by the sensor in the form of a specific succession of changes in the properties. Said succession of changes may be configured in the manner of a character string (a string). Said character string (said string) may contain for example at one specific place the information about the audio information to be replayed and at another specific place an identification word that can function as copy protection or for authentication. If the succession of changes in the manner of the character string does indeed contain the information about the audio information to be replayed, but not the identification word, the control unit does not drive the loudspeaker. As an alternative to the identification word, the character string may also be an instruction sequence of a program (of software) that is executable by the control device for verification purposes. 
     In one embodiment, the control unit, in addition to the driving of the loudspeaker for replaying the audio information, can also change the type of replay of the audio information, for example the volume of the replay, if the sensor detects within the region of its surroundings a specific property or a specific change in a property of said surroundings or if the control unit detects a specific change in the property detected by the sensor. In this regard, the control unit can drive the loudspeaker depending on said angle at which an identification carrier is situated relative to the sensor. By way of example, the replay volume can be adapted by a variation of the angle. 
     In one preferred embodiment, the device comprises a memory in which data are stored on the basis of which the control unit can drive the loudspeaker for replaying the audio information. The data particularly preferably include the audio information in the specific data format, for example an MP3 format or a WAV format. Embodiments are conceivable in which the memory only has data of a single item of audio information. In such an embodiment, the device according to the invention can be used, given corresponding setting of the property of the region of the surroundings of the sensor, or given corresponding setting of the change in the property of the region of the surroundings of the sensor, to replay a single item of audio information whose replay duration lasts particularly preferably at least 10 s. In one preferred embodiment, data of different items of audio information are stored in the memory. Particularly preferably, in such an embodiment, the control unit is configured in such a way that, if the sensor detects within the region of its surroundings a specific first property or a specific first change in a property of said surroundings or the control unit detects a specific first change in the property detected by the sensor, said control unit drives the loudspeaker for replaying a first item of audio information whose replay lasts particularly preferably at least 10 s, while the control unit drives the loudspeaker for replaying a second item of audio information whose replay particularly preferably lasts at least 10 s, if the sensor detects within the region of its surroundings a specific second property or a specific second change in a property of said surroundings or the control unit detects a specific second change in the property detected by the sensor. As a result it becomes possible, by means of the specific influencing of the property of the region of the surroundings of the sensor or by means of a specific influencing of the change in the property of said surroundings of the sensor, to stipulate which audio information from a plurality of items of audio information is replayed by the device. By way of example, the device can replay a specific first item of audio information if the presence of a first RFID transponder in the region of the surroundings of the sensor is detected, while the device can replay a second item of audio information if the presence of a second RFID transponder in the region of the surroundings of the sensor is detected. 
     In one preferred embodiment, the data of audio information are stored as a data set with separately readable data sequences in order, for example, to replay a talking book in the form of individual chapters or to make the individual chapters of a talking book selectable. In one preferred embodiment, each data sequence of a data set can be read out separately and be used for driving the loudspeaker. 
     In one preferred embodiment, the device comprises a unit for receiving data from the internet and/or for transmitting data into the internet, particularly preferably an antenna for a wireless local area network (WLAN), a mobile data radio technology such as, for example, LTE, UMTS or the predecessors or successors thereof, or a connection socket for connecting a cable of a local area network that also has an internet access, for example a connection socket for an Ethernet cable. Owing to the presence of a unit for receiving data from the internet, there is the possibility of the control unit downloading from the internet the data containing the audio information to be replayed in a specific data format. In this way, the device can play back audio information that was not stored in the device before the sensor detects within the region of its surroundings a specific property or a specific change in a property of said surroundings or the control unit detects a specific change in the property detected by the sensor. In this case, the control unit may be designed in such a way that it receives the data from the internet and permanently stores them in a memory and the driving of the loudspeaker for replaying the audio information is performed on the basis of the data stored in the memory. Supplementarily or alternatively, it is conceivable for the control unit to directly use the data received from the internet in order to drive the loudspeaker for replaying audio information (so-called streaming), wherein this embodiment may also encompass the temporary buffer-storage of the data received from the internet in a buffer memory. 
     In embodiments that receive from the internet the data containing the items of audio information in a specific data format, it is conceivable, for example, for the control unit to keep available in a memory a specific server address of a server connected to the internet and to keep available in a memory a table in which a respective specific property or a respective specific change in a property is assigned to a respective identification number. In such an embodiment, the control unit is then designed, upon recognizing the specific property or the specific change in the property, to communicate with the concrete server and, having recourse to the identification number assigned to the specific property or the specific change in the property, to download from the server a specific data set and to use it for driving the loudspeaker for replaying the audio information resulting from said data. By way of example, music tracks may be stored as data in a specific data format on the server, wherein the respective music track, or the data containing said music track, is or are stored under a specific identification code on the server. In one preferred embodiment, the device according to the invention already contains an assignment table that assigns specific properties or changes in the properties of the region of the surroundings of the sensor to some, a plurality or, in one preferred embodiment, even all of the identification numbers that are also used on the database of the server. This enables the control unit to download data sets from the server in a targeted manner. Alternatively, it is conceivable for the control unit to be designed to communicate information containing the detected specific property, or information containing the detected specific change in the property, to a specific server that is connected to the internet. The assignment of the recognized specific property or of the recognized specific change in the property to specific audio information can then be performed on the server. The control unit is then designed to receive from the server data containing the audio information to be replayed. The server communicates to the device according to the invention the data which it has assigned to the specific property communicated by the control unit or to the specific change in the property communicated by the control unit. This embodiment avoids the need for keeping available an assignment table in the device according to the invention and thus increases the flexibility of the reception of specific data containing the audio information on the basis of a specific detected property or a specific detected change in a property of the region of the surroundings of the sensor. Such an embodiment makes it possible for example to increase the number of data sets provided on the server, without the need to adapt an assignment table in the control unit of the device according to the invention. Likewise, such an embodiment enables security concepts to be easily implemented, which can be used, for example, to prevent specific data sets from being transmitted, for example without authorization. 
     In one preferred embodiment, the control unit is designed to directly drive the loudspeaker for replaying the audio information. Particularly preferably no further start signals have to be fed to the control unit for driving the loudspeaker for replaying the audio information. It is conceivable in this case, however, for the control unit to delay the driving of the loudspeaker for replaying the audio information by means of a delay element. 
     In one preferred embodiment, the device according to the invention does not comprise an operating element with which an operator could influence the driving of the loudspeaker for replaying the audio information by means of the control unit if the sensor detects within the region of its surroundings a specific property or a specific change in a property of said surroundings or the control unit detects a specific change in the property detected by the sensor. In this embodiment, it is conceivable for operating elements to be provided in order to send to the control unit commands other than those for the initial driving of the loudspeaker for replaying the audio information, for example operating elements for setting the volume of the replay of the audio information via the loudspeaker. 
     It is likewise conceivable for operating elements to be provided in order, when replaying audio information that becomes on account of data of a data set with a separately readable data sequence, to jump from a first chapter to a next chapter. Moreover, in this embodiment it is conceivable for an operating element to be provided with which an operator can interrupt the replay after the initial driving of the loudspeaker for replaying the audio information by means of the control unit. In one preferred embodiment, therefore, an operating element is indeed provided. In this embodiment, however, the control unit can drive the loudspeaker for replaying the audio information solely by virtue of the sensor detecting within the region of its surroundings a specific property or a specific change in a property of said surroundings, and without an operator operating the operating element. 
     In an alternative embodiment, the device comprises an operating element and the control unit is designed in such a way that the control unit drives the loudspeaker for replaying the audio information only if the control unit receives a predetermined signal from said operating element. By way of example, said operating element may provide the start command for driving the loudspeaker for replaying the audio information. In one particularly preferred embodiment, however, said start command is the only start command necessary for starting the driving of the loudspeaker for replaying the audio information. Particularly preferably, in this embodiment no provision is made for using said operating element or a further operating element to generate further command signals that have to be fed to the control unit before the latter drives the loudspeaker for replaying the audio information. Particularly preferably, no operating elements are provided with which, from a plurality of data for audio information stored in a memory of the device, a data set is selected for the replay. Particularly preferably, in this embodiment, the data set to be replayed is selected solely on the basis of the specific property detected by the sensor, or the specific change—detected by the sensor—in the property of the region of the surroundings of the sensor, or on the basis of the specific change—detected by the control unit—in the property detected by the sensor. Such an embodiment simplifies operation particularly in comparison with MP3 players which are known from the prior art and in which, for replaying a specific item of audio information, the audio information must firstly be selected from a list. 
     In one preferred embodiment, the control unit may be designed in such a way that it interrupts the driving of the loudspeaker for replaying the audio information as soon as the sensor no longer detects within the region of its surroundings the specific property or the specific change in the property, or the control unit no longer detects the specific change in the property detected by the sensor. The interruption may be effected particularly preferably immediately, in a time-delayed manner or by means of a gradual reduction in the volume. What may be brought about thereby, for example, is that if an RFID transponder used in one preferred embodiment is removed from the region of the surroundings of the sensor, the replay of the audio information is interrupted. Alternatively, it is conceivable to configure the control unit in such a way that the replay of the audio information is continued even if the sensor no longer detects within the region of its surroundings the specific property or the specific change in the property or the control unit no longer detects the specific change in the property detected by the sensor. 
     In one preferred embodiment, the device comprises an antenna for a wireless local area network (WLAN), which antenna can be switched off. Particularly if the device according to the invention for replaying the audio information is intended to be used by children, there may be an interest in reducing the electromagnetic waves generated in the environment of the child. For this purpose it may be expedient to switch off the WLAN antenna. 
     In one preferred embodiment, the device according to the invention is embodied in a cubic fashion. The device according to the invention may also have other shapes, for example spherical, or may assume for example the shape of larger objects particularly preferred for children, such as, for example, the shape of a ship, a locomotive, a house or an animal, such as an elephant, for example. 
     In one preferred embodiment, the device comprises a receptacle for an identification carrier, said receptacle being identified optically, haptically and/or by a shoulder in the surface, for example a recess or elevation. In one preferred embodiment, the device provides for mechanically or magnetically releasably fixing the identification carrier. As described in greater detail below in connection with the system according to the invention, the device according to the invention is used particularly preferably as part of a system in which the device interacts with an identification carrier, in which the identification carrier has a property that can be detected by the sensor if the identification carrier is situated within the region of the surroundings of the sensor, or the identification carrier changes a property of the surroundings of the sensor and the sensor can detect this change. If the device according to the invention is embodied with an identified receptacle, then there is the possibility of positioning the identification carrier in said receptacle. By providing a receptacle, it is furthermore possible to demarcate a region within which the sensor is designed to detect in this region of its surroundings a specific property or a specific change in a property. The provision of a receptacle makes it possible to design the device according to the invention in one preferred embodiment such that the sensor can detect the property of its surroundings only in the region of the receptacle, or can detect the change in a property of said surroundings only in the region of the receptacle. Undesired incorrect operation can thus be precluded. In the system according to the invention described in greater detail below, the sensor can even be designed such that the control unit drives the loudspeaker for replaying audio information only if the identification carrier is positioned in the receptacle. 
     In one preferred embodiment, the device comprises an operating element in the form of a rocker, with which the volume of the replay of the audio information can be influenced by virtue of the fact that the rocker in a first position transmits a first signal to the control unit, for example a signal for increasing the volume of the replay of the audio information, and the rocker in a second position transmits a second signal to the control unit, for example a signal for reducing the volume of the replay of the audio information. Furthermore, such a rocker may have a neutral central position in which no signal influencing the volume is transmitted to the control unit. Alternatively, it is conceivable for the device to comprise a first operating element, with which signals for increasing the volume of the replay of the audio information can be communicated to the control unit, and for the device to comprise a second operating element, with which signals for reducing the volume of the replay of the audio information can be transmitted to the control unit. In one particularly preferred embodiment, the operating element that influences the increase of the volume is made larger than the operating element that influences the reduction of the volume of the replay of the audio information. In one particularly preferred embodiment, the two operating elements have the shape of ears which are fitted to a housing of a main body of the device, for example project from the housing. The ear-shaped operating elements can emit the signal to be generated by them for influencing the volume of the replay of the audio information upon carrying out a compressive movement or bending movement. This has the advantage that the user can recognize the function of the operating elements without having to rely on linguistic knowledge. 
     In one preferred embodiment, the device according to the invention comprises a display. Said display may be in particular an E-Ink display. The display may also be a touch-sensitive display. Supplementarily or alternatively, the device may comprise an LED or a sequence of LEDs. 
     In one preferred embodiment, the device comprises a proximity sensor, a movement sensor (acceleration sensor), a sensor for ambient light, a moisture sensor, an inclination sensor, a GPS sensor and/or a gyroscopic sensor. Said sensors allow the generation of further operating commands for the control unit. By way of example, a device designed in this way can recognize shaking and generate therefrom an operating signal for the control unit. By way of example, shaking of the device can be used to replay data of different items of audio information in a random order. Likewise, a device designed in this way can recognize whether the device is lightly tapped from the left or from the right. This can be used for example to jump within a data set to the next chapter or to a previous chapter. Likewise, a device configured in this way can recognize whether it is being thrown. Operating signals can be generated from this, too. 
     In one preferred embodiment, the device comprises a sensor that can generate a signal dependent on the distance between an object positioned in the region of the receptacle and the receptacle, for example an ultrasonic sensor. As a result, it becomes possible, in one preferred embodiment of the device, to make the driving of the loudspeaker dependent on this signal, for example on the object touching or almost touching the receptacle. Furthermore, in a supplementary or alternative embodiment, this makes it possible to generate further operating commands in response to a variation of the distance. By way of example, a brief removal and re-emplacement of the object may be used to jump within a data set to the next chapter. 
     A device oriented in this way can recognize whether it is tilted vertically or whether it is tilted horizontally. These signals can also be used for generating operating signals for the control unit. By way of example, vertical tilting can be used for navigation within a replay list, while horizontal tilting makes it possible to change between applications. 
     In one preferred embodiment, the device according to the invention comprises a data connection, for example a USB connection. Via such a connection, for example, a memory provided as part of the device in one preferred embodiment can be occupied by data containing audio information. It is likewise possible to connect the device according to the invention to a computer via such a connection, for example in order to configure the software of the device. 
     In one preferred embodiment, the device is clad with foam or some other elastic material. Particularly preferably, the device according to the invention is clad completely with foam or some other elastic material, or, in one embodiment comprising a display, is not clad with foam or an elastic material only in the region of the display. The cladding firstly protects the further components of the device. The cladding secondly protects children against injuries. 
     In one preferred embodiment, the device according to the invention comprises an energy store, in particular a battery, particularly preferably a rechargeable battery. In one preferred embodiment, the device according to the invention is embodied in such a way that the battery can be charged wirelessly, for example by means of inductive energy transmission. This affords the advantage that the charging station can be embodied in a manner appropriate for children, for example in the form of a charging cradle into which the device according to the invention has to be placed by itself for charging purposes. This avoids the need for children to handle electrical cables in order to charge the battery of the device according to the invention. 
     In one preferred embodiment, the device according to the invention can generate light, for example in order to function as a night light. 
     In one preferred embodiment, the device according to the invention comprises a housing in which the sensor is thus arranged, wherein the region of the surroundings of the sensor in which the sensor can detect a property or a change in a property of said surroundings extends beyond a surface of the housing not further than 1 m, particularly preferably not further than 150 mm, particularly preferably not further than 100 mm, particularly preferably not further than 50 mm, particularly preferably not further than 10 mm, particularly preferably not further than 5 mm. This affords the advantage that the property or the change in the property that is intended to be detected by the sensor in order that the control unit drives the loudspeaker for replaying the audio information is recognized only in a narrow region around the housing of the device. This avoids incorrect operations. 
     In one preferred embodiment, the device is produced from incombustible material or material of low combustibility. 
     In one preferred embodiment, the device comprises a microphone or a connection possibility for incoming audio signals, for example from a microphone. This makes it possible to control the device by voice or to make recordings. 
     Particularly preferably, the device can be linked into a wireless local area network via a WLAN antenna and receive control commands via the WLAN antenna, for example can be controlled via a smartphone or a PC. In one preferred embodiment, these control commands are not control commands with which the user can influence the beginning of the replay of the audio information. Likewise, the device according to the invention can be designed to be operated via a remote control. 
     In one preferred embodiment, the device according to the invention comprises a camera. If the device according to the invention is embodied for example as a night light, then the camera can perform a monitoring function for the child lying next to the device, by virtue of the fact that the camera can be driven from a smartphone, for example, and the image recorded by the camera can be replayed on a display such as a television, a smartphone or other mobile display. Supplementarily or alternatively, the audio information recorded by a microphone or the audio information fed in by a connection possibility can be replayed on a loudspeaker or smartphone by this route. 
     It is likewise possible for a device linked into a wireless local area network via a WLAN antenna to transfer the audio information to be replayed to other subscribers of the network, for example to stream it to a television or some other loudspeaker. 
     In one preferred embodiment, the operating system of the control unit is Firefox OS. In one preferred embodiment, the operating system of the control unit can be updated by means of updates. 
     In one preferred embodiment, the control unit is designed to determine and document information about the driving of the loudspeaker, for example the frequency with which specific items of audio information were played back or the order in which specific items of audio information were played back. Particularly preferably, the device is designed to communicate such information to a server. 
     In one preferred embodiment, the device comprises means for supplying an identification carrier described below with current, preferably without electrical contact, for example by induction. 
     The system according to the invention comprises a device according to the invention and an identification carrier, wherein the identification carrier has a property that can be detected by the sensor if the identification carrier is situated within the region of the surroundings of the sensor, or the identification carrier changes a property of the surroundings of the sensor. A basic concept of the system according to the invention is that the control unit drives the loudspeaker for replaying audio information if a specific identification carrier is brought into the region of the surroundings of the sensor in which the sensor can detect a property or a change in a property. In this case, in one particularly preferred embodiment, however, just bringing the identification carrier into said region is intended to trigger the driving of the loudspeaker for replaying the audio information, without further operating commands having to be generated. 
     This basic concept of the system according to the invention considerably simplifies the operation of devices for replaying audio information. It is now no longer necessary to handle scratchable CDs, as is necessary in the case of the CD players known from the prior art, or to learn the complex operating sequences of operating elements necessary for driving the loudspeakers for replaying audio information in the case of the MP3 players known from the prior art. In the simplest embodiment of the invention it suffices to bring the identification carrier into the region of the surroundings of the sensor in which the latter can detect the property or a change in the property, and thus to trigger automatically the driving of the loudspeaker for replaying the audio information by means of the control unit. 
     In one preferred embodiment, the identification carrier has the form of a figure, in particular the form of a human figure or of an animal figure or of a fantasy figure. Particularly preferably, the identification carrier has the form of a figure with feet. Particularly preferably, in the case of an identification carrier having the form of a figure with feet, the magnet is arranged in the feet of the figure, such that the figure can stand on the device according to the invention. 
     In one preferred embodiment, the identification carrier is embodied in the manner of a figure but does not have a pedestal on which the figure stands. 
     In one preferred embodiment, the identification carrier is not mechanically fixable to the device. Particularly preferably, the device and the identification carrier do not have a system comprising plug and socket with which the identification carrier could be connected to the device. 
     In one preferred embodiment, the identification carrier is configured such that the operator can associate it with specific audio information on the basis of its shape, colouration, surface structure and/or its material, and that upon being brought into the region of the surroundings of the sensor in which the latter can detect a property or a change in a property of said surroundings, this triggers the driving of the loudspeaker for replaying audio information related to the association of the user in terms of contents. The identification carrier can for example be embodied in the manner of a figure and trigger the replay of audio information associated with the form of the figure. By way of example, the figure can have the form of Benjamin Blümchen® and the replayed audio information can be an audio story with Benjamin Blümchen® as the protagonist. It is likewise conceivable that the identification carrier can be individually adapted. By way of example, the identification carrier can be embodied as a figure which resembles the form of a person in relatively close proximity to another person and the replayed audio information can be audio information previously recorded by this person. It is likewise conceivable for the identification carrier to have the form of a figure resembling a scientist, and for the audio information to have contents of the scientist&#39;s discoveries. It is furthermore conceivable for the figure to resemble a composer or artist and for the audio information to contain contents from said composer or artist. It is conceivable for an identification carrier to trigger the audio information with respect to one piece of music, a collection of pieces of music (album) or a playlist. 
     In one preferred embodiment, the identification carrier is embodied such that the data stored on it can be altered. In another preferred embodiment, the identification carrier is embodied such that the data stored on it cannot be altered. In a further preferred embodiment, the identification carrier is embodied such that the data stored on it can be altered only once, and not any longer after that. In one preferred embodiment, an initially alterable identification carrier is configured such that it can become an unalterable identification carrier by means of a specific processing, preferably such that it cannot be converted back again to an alterable identification carrier. The processing may preferably be of mechanical type, for instance severing or connection of specific electrical lines. In supplementary or alternative embodiments, the processing may be effected by visible light, by invisible electromagnetic waves (such as, for example, radio signals, ultraviolet light), by a magnetic, electrical and/or by a thermal pulse. In one preferred embodiment, the identification carrier is embodied such that it can be secured in or on other articles, such as a figure, for example, by means of a clicking mechanism. After this process, the article overall can be regarded as an identification carrier. In one particularly preferred embodiment, the identification carrier is configured such that it can be made unalterable by means of a mechanical processing which can be combined with the movement for driving the clicking mechanism for connecting the identification carrier to an article, for example such that the processing can be performed simultaneously with the clicking into the article. 
     In one preferred embodiment, the identification carrier is embodied such that it can be supplied with current for the operation of active electronic components by induction. In one preferred embodiment, the identification carrier is embodied such that it contains active electronic components which provide a data memory. Said data memory is preferably non-volatile. In one preferred embodiment, the data memory is embodied such that it can provide an identification and/or audio information which can be the basis for the alteration of properties of the surroundings. By virtue of the fact that audio information stored on the identification carrier is transmitted to the device, the device can play back audio information that was not stored in the device before the sensor detects within the region of its surroundings a specific property or a specific change in a property of said surroundings or the control unit detects a specific change in the property detected by the sensor. In one preferred embodiment, the identification carrier has active electronic components suitable for altering properties of the surroundings which can be converted into data again by a sensor and a control unit. In one preferred embodiment, the identification carrier has a processor. In one preferred embodiment, the identification carrier also has a data receiving unit. 
     An identification carrier can also be advantageous independently of the purpose of replaying audio information. For storing and transmitting data generally one embodiment may be configured such that it comprises
     an antenna for electromagnetic waves,   an active electrical component containing a non-volatile data memory having memory space of at least one megabyte,   a transmitting unit designed such that it can transmit data from the non-volatile data memory via the antenna,   an energy receiving unit that can receive energy and convert it into enough current to supply the data memory and the transmitting unit with current, such that a permanent energy store is not required for the data transmitting process, wherein the energy receiving unit is different from the antenna,   a controlling unit that is ready to read out data from the data memory and to transmit the data via the transmitting unit.   

     Particularly preferably, the controlling unit indicates contactlessly the readiness to read out data from the data memory and to transmit the data via the transmitting unit as soon as the energy receiving unit makes enough energy available for this, and transmits data from the data memory wholly or partly via the transmitting unit in response to contactless request. The aspects of individual embodiments of an identification carrier as described above and below can also be applied to such a generally usable identification carrier, wherein the driving of a loudspeaker is respectively replaced by the processing or display of the data stored on the identification carrier. In one preferred embodiment, the data memory has a memory space of at least 500 megabytes, 1 gigabyte or 4 gigabytes. 
     In one preferred embodiment, the identification carrier is embodied in such a way that it can generate within a region of the surroundings of the sensor only one specific property or only one specific change in a property of said surroundings and can thus only bring about the effect that the control unit drives the loudspeaker for replaying a specific item of audio information. In such an embodiment of the system it is provided that additional identification carriers have to be procured or kept available in order to play back additional items of audio information. The invention in this embodiment thus departs from the principle often to be found in MP3 players from the prior art, namely that of combining as many functions as possible or as many items of audio information as possible in one appliance in such a way that they are accessible in each case via specific operating sequences but without addition of further devices. In relation to such MP3 players, the system according to the invention in the embodiment described here is configured in a more complex fashion since a multiplicity of identification carriers have to be kept available in order to play back different items of audio information. It has been found here, however, that there is a need for a simple operating concept in which the number of identification carriers to be kept available is increased in favour of simple playback of the one item of audio information assigned to the identification carrier. By way of example, this embodiment makes it possible to construct a toy system in which, although identification carriers embodied like figures are in each case only suitable for identifying a specific piece of music assigned to them or a specific spoken story assigned to them, which is played back by driving the loudspeaker of the toy, it is possible, by choosing the figure and on account of the simplified operating concept, which in one preferred embodiment allows the immediate playback of the piece of music or of the spoken story as soon as the identification carrier has generated within a region of the surroundings of the sensor the corresponding one property or the corresponding one change in a property of said surroundings, for the children themselves to choose which piece of music or which spoken story is to be replayed. The as a result of the generation of the one corresponding property or of the one corresponding change in a property of said surroundings can, for the purpose of replaying the audio information, identify a data set having separately readable data sequences in order, for example, by means of the one identification carrier, to identify a talking book in the form of individual chapters and to make the individual chapters of a talking book selectable, or to identify the individual episodes of a serial or of a series. 
     Particularly preferably, the identification carrier has no operating element that can be used to influence the manner in which the identification carrier can generate within a region of the surroundings of the sensor a property or only a change in a property of said surroundings. This embodiment is particularly well suited to applications in which the identification carrier is embodied in such a way that it can generate within a region of the surroundings of the sensor only one specific property or only one specific change in a property of said surroundings and can thus only bring about the effect that the control unit drives the loudspeaker for replaying a specific item of audio information. Supplementarily or alternatively, the identification carrier can have an operating element which can be used to generate within the region of the surroundings of the sensor not only one but a plurality of specific properties or specific changes in a property of said surroundings, which are detected by the sensor, and with which the control unit can change the manner in which the audio information is replayed, for example the volume of the replay or control commands for selecting the next or previous chapter or piece of music. In this regard, by driving the operating element of the identification carrier, for example by turning an arm or a head of an identification carrier embodied as a figure, it is possible to change the manner in which the audio information is replayed, for example the volume of the replay. 
     In one preferred embodiment, the identification carrier has no energy stores, particularly preferably no permanent energy stores such as a battery, for example, particularly preferably no energy stores with the exception of a capacitor. 
     A further method according to the invention for replaying audio information is carried out with a device comprising
     a loudspeaker or a loudspeaker connection,   a sensor that can detect within a region of its surroundings a property or a change in a property of said surroundings,   a support on which an article can be permanently positioned, wherein the sensor can detect at least in a region above the support a property or a change in a property of said region, and/or a securing means on which an article can be permanently secured, wherein the sensor can detect at least in a region adjacent to the securing means a property or a change in a property of said region,   a control unit,
 
wherein the control unit drives the loudspeaker or the loudspeaker connection for replaying audio information whose replay lasts particularly preferably at least 10 s if the sensor detects within the region of its surroundings a specific property or a specific change in a property of said surroundings or if the control unit detects a specific change in the property detected by the sensor.
   

     A further method according to the invention for replaying image, video or 3D information is carried out with a device comprising
     a display for image, video or 3D information or a connection for such a display,   a sensor that can detect within a region of its surroundings a property or a change in a property of said surroundings,   a support on which an article can be permanently positioned, wherein the sensor can detect at least in a region above the support a property or a change in a property of said region, and/or a securing means on which an article can be permanently secured, wherein the sensor can detect at least in a region adjacent to the securing means a property or a change in a property of said region,   a control unit
 
wherein the control unit drives the display or the connection for the display for replaying image, video or 3D information if the sensor detects within the region of its surroundings a specific property or a specific change in a property of said surroundings or if the control unit detects a specific change in the property detected by the sensor.
   

     A further method according to the invention for executing software is carried out with a device comprising
     a processor that can execute the software,   a sensor that can detect within a region of its surroundings a property or a change in a property of said surroundings,   a control unit,
 
wherein the control unit drives the processor for executing the software if the sensor detects within the region of its surroundings a specific property or a specific change in a property of said surroundings or if the control unit detects a specific change in the property detected by the sensor.
   

     The identification carrier according to the invention is suitable for use with a device according to the invention in a system according to the invention or in a method according to the invention. The methods according to the invention are particularly preferably carried out using a system according to the invention. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The invention is explained in greater detail below with reference to drawings that illustrate embodiments of the invention. 
       In the drawings: 
         FIG.  1    shows a perspective view of the device according to the invention for replaying audio information, 
         FIG.  2    shows a frontal view of a system according to the invention consisting of a device according to the invention in accordance with  FIG.  1    and an identification carrier, 
         FIG.  3    shows a frontal view of an identification carrier according to the invention, 
         FIG.  4    shows a perspective view of an identification carrier according to the invention in an alternative embodiment and 
         FIG.  5    shows a frontal view of an identification carrier according to the invention in an alternative embodiment. 
     
    
    
     DETAILED DESCRIPTION 
       FIG.  1    shows the device according to the invention for replaying audio information. The device  1  comprises a loudspeaker, which is not illustrated in more specific detail in the perspective view in  FIG.  1   . Furthermore, the device  1  comprises a recess  3  at its top side  2 . A sensor (not illustrated in more specific detail) is arranged in the interior of the device  1 , below the recess  3 , which sensor can detect within the region of the recess  3  a property or a change in a property of these surroundings, namely can read a passive RFID transponder (cf.  FIG.  2   ). Furthermore, the device comprises a control unit (not illustrated in more specific detail) that can drive the loudspeaker for replaying audio information if the sensor detects within the region of its surroundings a specific property or a specific change in a property of said surroundings or the control unit detects a specific change in the property detected by the sensor. 
     The sensor is arranged within the housing of the device  1  in such a way that the region of the surroundings of the sensor in which the sensor can detect a property or a change in a property of said surroundings extends no further than 100 mm upwards beyond the base surface  4  of the recess  3 . 
     The device according to the invention comprises a first operating element  5  embodied in the shape of an ear, and a second operating element  6  likewise embodied in the shape of an ear. The operating element  5  is configured such that it is larger than the operating element  6 . Both the operating element  5  and the operating element  6  can perform a tilting movement relative to the rest of the housing of the device  1  and pivot back into the basic position illustrated in  FIG.  1   . 
     Furthermore, the device  1  comprises a display  7 . 
     The system illustrated in  FIG.  2    comprises, besides the device illustrated in  FIG.  1   , an identification carrier  8  embodied in the form of a figure. The identification carrier  8  embodied as a figure has legs  9  and feet and no pedestal to which the feet  9  would be fixedly connected. Magnets (not illustrated in more specific detail) are provided in the feet of the identification carrier  8  embodied as a figure. Said magnets can interact with magnets or metal objects arranged directly below the base surface  4  of the recess  3 , such that the identification carrier  8  can be fixedly held releasably on the baseplate  4  of the recess  3 . 
     The operation of the system according to the invention is performed as follows: 
       FIG.  1    shows the device according to the invention in a basic state in which, in the embodiment illustrated here, it does not replay audio information. The sensor permanently or periodically monitors the region of the recess  3  to determine whether said region has a specific property or a specific change in a property. In the embodiment illustrated here, the sensor monitors the region of the recess  3  to determine whether a specific RFID transponder is brought into the region of the recess. This is not the case in the operating situation illustrated in  FIG.  1   , and so the device  1  does not replay audio information. 
       FIG.  2    shows the operating situation in which the system according to the invention has been completed by addition of the identification carrier  8 . The identification carrier  8  is placed onto the baseplate  4  of the recess  3  and adheres there by means of the magnets provided in the feet of the identification carrier  8 . The identification carrier  8  has an RFID transponder (not illustrated in more specific detail). By virtue of the fact that the identification carrier  8  has now been brought into the region of the surroundings of the sensor that is monitored by the sensor, said region now has a specific property detectable by the sensor. The sensor recognizes the presence of the RFID transponder in the identification carrier  8  and conveys this to the control unit (not illustrated in more specific detail) by means of a signal. The control unit thereupon drives the loudspeaker for replaying audio information, without the need for driving of a further operating element. 
     The sensor reads out an identification from the RFID transponder of the identification carrier  8  and conveys said identification to the control unit. On the basis of an assignment table stored in the control unit, the control unit assigns the identification read out by the sensor to a specific data set containing a specific item of audio information in a memory (not illustrated in more specific detail) of the device  1 . The control unit thereupon drives the loudspeaker in order to replay the audio information contained in the specific data read out from the memory by the control unit. Said audio information is a piece of music whose replay lasts at least 10 s. 
       FIG.  3    shows the identification carrier  8  according to the invention from a frontal view. The identification carrier  8  in the form of a figure has legs  9  and feet, rather than a pedestal to which the feet would be fixedly connected. In the feet of the identification carrier  8  in the form of a figure, magnets  10  are provided. The feet form partial surfaces  11  and  12 , which are not interconnected, of a standing surface of the identification carrier  8 . The identification carrier further has an identification  13  embodied as an RFID transponder. The magnets  10  are positioned closer than the identification  13  to the standing surface (partial surfaces  11  and  12 ). As indicated by the arrow marked by the symbol N 1  in  FIG.  3   , there is at least one surface normal N 1  to the standing surface that does not pass through a magnet  10  or through the identification  13 . Likewise, there is at least one surface normal N 2  to the standing surface that passes only through the magnet  10  and not through the identification  13 . 
     The standing surface lies within one plane E. 
       FIG.  4    shows an alternative embodiment of an identification carrier  108  according to the invention, from a perspective view. The identification carrier in the form of a figure has a body that includes a first part  101  and a second part  102 . The second part  102  has a first opening  103  in the form of a cylindrical blind hole, at the base of which a magnet  110  is positioned. The second part  102  has a second opening  104  in the form of a cylindrical blind hole, at the base of which an identification  113  in the form of an RFID transponder or an NFC tag is positioned. The identification carrier  108  is embodied as a figure that has legs  109  and feet, and no pedestal to which the feet would be fixedly connected. The figure further includes a sack, standing next to the feet of the figure. The feet and the bottom of the sack form partial surfaces  111 ,  112 ,  114 , not interconnected, of a standing surface of the identification carrier  108 . The magnet  110  is positioned closer than the identification  113  to the standing surface. As indicated by the arrow marked by the symbol N 1  in  FIG.  4   , there is at least one surface normal N 1  to the standing surface that does not pass through either a magnet  110  or the identification  113 . Likewise, there is at least one surface normal N 2  to the standing surface that passes only through the magnet  110  and not through the identification  113 . 
     The first part  101  of the body is a free form and has a three-dimensional shape overall that does not correspond to any geometric main body, although its overall three-dimensional shape may be composed of geometric main bodies or may contain geometric main bodies, such as the cylindrical projection  115 , for example, and the truncated cone-shaped end  116  thereof. The second part  102  of the body is also a free form and has a three-dimensional shape overall that does not correspond to any geometric main body, although its overall three-dimensional shape may be composed of geometric main bodies or may contain geometric main bodies, such as the cylindrical legs of the figure, for example. The projection  115  is provided for engaging into the opening  103  and securing the magnets  110  positioned at the base thereof. 
     The standing surface lies within one plane E. 
       FIG.  5    shows a further alternative embodiment of an identification carrier  208  according to the invention, from a perspective view. The identification carrier in the form of a figure has a body that includes a first part  201  and a second part  202 , which is separated from the first part  201  during the manufacturing process and is attached to the first part  201  by means of a joining process. The first part has two magnets  210  and one identification  213 . The second part  202  has two magnets  220  and one identification  223 . The identification carrier  208  is embodied as a figure, which has legs  209  and feet, but no pedestal to which the feet would be fixedly connected. The figure further has arms  219  with hands. The feet form partial surfaces  211 ,  212 , not interconnected, of a first standing surface of the identification carrier  208 . The hands form partial surfaces  221 ,  222 , not interconnected, of a second standing surface of the identification carrier  208 . 
     In the operating situation shown in  FIG.  5   , the identification carrier  208  is standing with its standing surface formed by the feet on a placement surface  204 , which may be the base surface  4  of the device  1  shown in  FIG.  1   , for example. In this operating situation, the identification  223  is positioned closer than the identification  213  to the placement surface  204 . A sensor (not illustrated in more specific detail) arranged beneath the placement surface is able to detect, within a region of its surroundings, a first property or a first change in a property of a magnetic field acting in the region of its surroundings when the identification carrier  208  is placed in this orientation on the placement surface  204 . If the identification carrier  208  is placed with its other standing surface, formed by the hands, on the placement surface  204 , the sensor (not illustrated in more specific detail) can detect, within a region of its surroundings, a second property or a second change in a property of a magnetic field acting in the region of its surroundings. This can be used for an operating concept, for example to pose a question via the loudspeaker when the first property or the first change is recognized, and to provide a response via the loudspeaker when the second property or the second change is recognized. 
     These standing surfaces are located in separate planes.