Patent Publication Number: US-2023143838-A1

Title: Information processing device, information processing method, and information processing program

Description:
TECHNICAL FIELD 
     The present disclosure relates to an information processing device, an information processing method, and an information processing program. 
     BACKGROUND ART 
     In recent years, for wearable equipment, such as headphones, capable of outputting sound information (e.g., audio data or acoustic data), widespread has been not only technology aiming to cut off external sound information, such as ambient sound information, but also technology aiming to actively take in external sound information. For example, widespread has been technology aiming to take in sound information about image information (moving image information) in which a user is interested, displayed on external display equipment. Thus, even in a case where a plurality of users is located in the same space, each of the plurality of users can listen to sound information about different image information. 
     CITATION LIST 
     Patent Document 
     Patent Document 1: Japanese Patent Application Laid-Open No. 2010-57085 
     SUMMARY OF THE INVENTION 
     Problems to be Solved by the Invention 
     However, the conventional technology does not necessarily enable acceleration of further improvement in usability. In public transport or the like, generalized has been display of image information, such as advertisements, on signage. However, from the viewpoint of public space, it is often difficult to output sound information. According to the conventional technique, for example, during use of public transport or the like, a user is not enabled to listen to sound information about image information, such as advertisements, in which the user gets interested. Furthermore, the conventional technology does not necessarily enable service providers that provide image information, such as advertisements, to accelerate improvement in service. 
     As above, according to the conventional technology, it is difficult to accelerate further improvement in usability. 
     Thus, the present disclosure proposes an information processing device, an information processing method, and an information processing program, which are novel and improved, enabling acceleration of further improvement in usability. 
     Solutions to Problems 
     According to the present disclosure, provided is an information processing device including: a calculation unit configured to calculate a degree of interest to a connection destination of a user having a terminal device; and a connection switch unit configured to control a switch in connection to the connection destination, on the basis of a response of the user to confirmation of connection to the connection destination, the confirmation of connection being presented on the basis of the degree of interest calculated by the calculation unit. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG.  1    illustrates an exemplary configuration of an information processing system according to an embodiment. 
         FIG.  2    illustrates an exemplary overview of the function of the information processing system according to the embodiment. 
         FIG.  3    illustrates an exemplary overview of the function of the information processing system according to the embodiment. 
         FIG.  4    illustrates an exemplary overview of the function of the information processing system according to the embodiment. 
         FIG.  5    illustrates an exemplary overview of the function of the information processing system according to the embodiment. 
         FIG.  6    illustrates an exemplary overview of the function of the information processing system according to the embodiment. 
         FIG.  7    is a block diagram of an exemplary configuration of the information processing system according to the embodiment. 
         FIG.  8    illustrates an exemplary user information storage unit according to the embodiment. 
         FIG.  9    is a flowchart illustrating a flow of processing in an information processing device according to the embodiment. 
         FIG.  10    is a flowchart illustrating a flow of processing in the information processing device according to the embodiment. 
         FIG.  11    illustrates an exemplary user information storage unit according to the embodiment. 
         FIG.  12    illustrates exemplary modifications of a terminal device according to the embodiment. 
         FIG.  13    illustrates the hardware configuration of an exemplary computer that achieves the function of an information processing device. 
     
    
    
     MODE FOR CARRYING OUT THE INVENTION 
     A preferred embodiment of the present disclosure will be described in detail below with reference to the accompanying drawings. Note that, in the present specification and the drawings, constituent elements having substantially the same functional configurations are denoted with the same reference signs, and thus the duplicate descriptions thereof will be omitted. 
     Note that the descriptions will be given in the following order: 
     1. Embodiment of Present Disclosure 
     1.1. Introduction 
     1.2. Configuration of Information Processing System 
     2. Function of Information Processing System 
     2.1. Function Overview 
     2.2. Exemplary Functional Configuration 
     2.3. Processing of Information Processing System 
     2.4. Various Types of Processing 
     3. Exemplary Hardware Configuration 
     4. Summary 
     &lt;&lt;1. Embodiment of Present Disclosure&gt;&gt; 
     &lt;1.1. Introduction&gt; 
     Conditional connection according to an embodiment below means that, with a first device and a second device in connection, the second device is not allowed to output content (e.g., sound information) that the first device receives. 
     Conditional connection and connection according to the embodiment below are established with Bluetooth (registered trademark), but this example is not limiting. For example, conditional connection and connection according to the embodiment may be established with Wifi or a different wired or wireless connection technique. 
     &lt;1.2. Configuration of Information Processing System&gt; 
     First, the configuration of an information processing system  1  according to the embodiment will be described.  FIG.  1    illustrates an exemplary configuration of the information processing system  1 . As illustrated in  FIG.  1   , the information processing system  1  includes an information processing device  10 , a terminal device  20 , and a connection-destination device  30 . Various devices can be connected to the information processing device  10 . For example, the terminal device  20  and the connection-destination device  30  are connected to the information processing device  10 , allowing information linkage between each device. The terminal device  20  and the connection-destination device  30  are wirelessly connected to the information processing device  10 . For example, the information processing device  10  performs near field communication, pursuant to Bluetooth (registered trademark), with the terminal device  20  and the connection-destination device  30 . Note that the terminal device  20  and the connection-destination device  30  may be connected to the information processing device  10  by wire or through a network. 
     (1) Information Processing Device  10   
     The information processing device  10  serves as an information processing device that controls, in accordance with the degree of interest of a user to the connection-destination device  30 , for example, a switch in connection of the terminal device  20  to the connection-destination device  30 . Specifically, the information processing device  10  first calculates the degree of interest of a user to the connection-destination device  30 . Then, on the basis of a response of the user (e.g., an operation) to confirmation of connection to the connection destination presented on the basis of the calculated degree of interest, the information processing device  10  controls a switch in connection to the connection destination. 
     Furthermore, the information processing device  10  has a function of controlling the entire operation of the information processing system  1 . For example, on the basis of information linked between each device, the information processing device  10  controls the entire operation of the information processing system  1 . Specifically, on the basis of information received from the terminal device  20 , the information processing device  10  controls connection of the terminal device  20 . 
     The information processing device  10  is achieved by a personal computer (PC), a work station (WS), or the like. Note that the information processing device  10  is not limited to a PC, a WS, or the like. For example, the information processing device  10  may be an information processing device such as a PC or a WS having an application functioning as the information processing device  10  implemented thereon, may be built in a terminal device, such as a smartphone, or may be a service on cloud computing connected through a network (e.g., 5G). 
     (2) Terminal Device  20   
     The terminal device  20  serves as wearable equipment, such as a pair of headphones, capable of outputting sound information. Examples of the terminal device  20  include a smartphone, a pair of headphones of a release type of which the housing portions are not airtight, and the like. 
     On the basis of information transmitted from the connection-destination device  30 , for example, the terminal device  20  outputs sound information for confirmation of connection. Then, the terminal device  20  receives a response of the user to the confirmation of connection. 
     (3) Connection-Destination Device  30   
     The connection-destination device  30  serves as an information processing device to which the information processing device  10  or the terminal device  20  can be connected. For example, the connection-destination device  30  is achieved by a display device capable of displaying image information, such as signage, a television (TV), a PC, a smartphone, or the like. 
     For example, the connection-destination device  30  captures a user in a predetermined range with respect to the connection-destination device  30 . Then, the connection-destination device  30  transmits captured image-capture information, for example, to the terminal device  20 . 
     &lt;&lt;2. Function of Information Processing System&gt;&gt; 
     The configuration of the information processing system  1  has been described above. Next, the function of the information processing system  1  will be described. 
     &lt;2.1. Function Overview&gt; 
       FIG.  2    illustrates an overview of the function of the information processing system  1  according to the embodiment. The information processing system  1  first detects the terminal device  20  inside a range RK 11  with respect to the connection-destination device  30 . This case corresponds to, for example, a case where a user U 12  who uses the terminal device  20  has moved inside the range RK 11  with respect to the connection-destination device  30 . For example, for powering up the connection-destination device  30 , the user U 12  has moved inside the range RK 11 . Here, for example, the range RK 11  may result from a case where the time required for a radio wave for measurement transmitted from the terminal device  20  to return to the terminal device  20  via the connection-destination device  30  is a predetermined threshold or less, or may be determined with any method enabling determination of a predetermined range. Furthermore, for example, between in viewing and listening to signage in a train and in viewing a monitor on the street, the distance between the user U 12  and the device or the size of the device varies. Thus, the range RK 11  may be appropriately changed, for example, in accordance with the environment around the user U 12  or the size of the connection-destination device  30 . Note that, similarly, a range RK 21  and a range RK 22  ( FIG.  3   ), a range RK 31  ( FIG.  4   ), a range RK 41  ( FIG.  5   ), and a range RK 51  ( FIG.  6   ), to be described later, may be determined with any method enabling determination of a predetermined range, and may be appropriately changed. Next, the information processing system  1  calculates the degree of interest of the user U 12  to the connection-destination device  30 . For example, on the basis of positional information between the terminal device  20  and the connection-destination device  30 , the information processing system  1  calculates the degree of interest of the user U 12  to the connection-destination device  30  higher as the distance decreases between the terminal device  20  and the connection-destination device  30 . Furthermore, for example, on the basis of angle information between a predetermined direction of the terminal device  20  and a predetermined direction of the connection-destination device  30 , the information processing system  1  calculates the degree of interest of the user U 12  to the connection-destination device  30  higher as the angle decreases between the predetermined direction of the terminal device  20  and the predetermined direction of the connection-destination device  30 . Then, in a case where the calculated degree of interest fulfills a predetermined condition, the information processing system  1  performs presentation of confirmation of connection to the user U 12  through the terminal device  20 . For example, the information processing system  1  performs presentation with sound information. As a specific example, the information processing system  1  outputs a confirmation sound regarding confirmation of connection, such as “Should connection be established to the signage terminal?”. Furthermore, for example, the information processing system  1  may perform presentation of confirmation with identification information for identifying the connection-destination device  30 . As a specific example, the information processing system  1  may output a confirmation sound regarding confirmation of connection with identification information about the connection-destination device  30 , such as “Should connection be established to the 2247 television?”. At this time, the information processing system  1  may display, on the display screen of the connection-destination device  30 , the identification information about the connection-destination device  30 , such as “2247”. Thus, for example, the information processing system  1  presents a number on the display screen of the connection-destination device  30  with a confirmation sound including the same number, so that the user can be properly informed which device is the connection destination. Furthermore, the information processing system  1  can acquire, from the user U 12 , confirmation regarding a switch in connection. Furthermore, the information processing system  1  can prompt the user U 12  to respond to the presented confirmation. Then, on the basis of a result of response from the user U 12 , the information processing system  1  switches the connection destination of the terminal device  20  to the connection-destination device  30 . Thus, the terminal device  20  can output content that the connection-destination device  30  receives. Furthermore, the information processing system  1  enables output of other content until immediately before a switch in connection, so that a switch in connection can be made with no break in sound. Furthermore, for example, in switching in connection from the signage terminal in connection to another terminal, the volume in sound is gradually turned down until the distance between the user U 12  and the signage terminal reaches or falls below a predetermined value, and then the volume in sound is gradually turned up after connection to the another terminal, instead of reproduction at the volume in sound of the content being reproduced. Thus, a switch in connection can be made with prevention of an uncomfortable break in sound and sudden reproduction to the user. Moreover, for example, the timing of connection to the signage terminal is likely to correspond to somewhere after the beginning of content, such as advertisements or music, being reproduced. In that case, such processing as described above enables a comfortable switch in connection with prevention of sudden reproduction. 
     (Conditional Connection Based on Positional Information) 
     With  FIG.  3   , described will be an overview of conditional connection with positional information. Similar descriptions to those with  FIG.  2    will be appropriately omitted below. Referring to  FIG.  3   , on the basis of positional information between terminal devices  20 , a connection-destination device  30 , and a connection-destination control device  40  that controls the connection-destination device  30 , a switch in connection is made. Note that, for example, the connection-destination control device  40  serves as a remote controller that controls the connection-destination device  30 . The information processing system  1  first detects the terminal devices  20  (terminal devices  20 A to  20 C) inside a range RK 21  with respect to the connection-destination device  30 . Furthermore, the information processing system  1  detects the connection-destination control device  40 . A range RK 22  indicates the distance between the connection-destination device  30  and the connection-destination control device  40 . A direction LN 21  indicates the direction from the connection-destination device  30  to the connection-destination control device  40 . A direction LN 22  indicates the direction from the connection-destination device  30  to the terminal device  20 A. A direction LN 23  indicates the direction from the connection-destination device  30  to the terminal device  20 B. A direction LN 24  indicates the direction from the connection-destination device  30  to the terminal device  20 C. Here, referring to  FIG.  3   , for example, users U 12 A and U 12 B are located on the display side of the connection-destination device  30  (e.g., a television). If a user U 12 C is located, from the connection-destination device  30 , at a distance equal to the distance between the connection-destination device  30  and each of the users U 12 A and U 12 B, but on the other side to the display side of the connection-destination device  30 , it is determined that the user U 12 C is located accidentally at the equal distance from the connection-destination device  30  in range, so that unnecessary connection can be prevented. Next, on the basis of the positional relationship between the connection-destination device  30 , the connection-destination control device  40 , and the terminal devices  20 , the information processing system  1  calculates the degrees of interest of the users U 12  (users U 12 A to U 12 C). Specifically, on the basis of angle information between a predetermined direction from the connection-destination device  30  to the connection-destination control device  40  and a predetermined direction from the connection-destination device  30  to each terminal device  20 , the information processing system  1  calculates the degree of interest of the corresponding user U 12  to the connection-destination device  30 . The information processing system  1  calculates the degree of interest of each user U 12  to the connection-destination device  30  higher in response to smaller angle information to the direction LN 21 . Furthermore, on the basis of distance information based on positional information between the connection-destination device  30 , the connection-destination control device  40 , and the terminal devices  20 , together with the angle information, the information processing system  1  may calculate the degree of interest of each user U 12  to the connection-destination device  30 . Thus, the information processing system  1  enables proper specification of a user who has an interest in connection to the connection-destination device  30 . Referring to  FIG.  3   , the information processing system  1  specifies, as a user who has an interest in connection to the connection-destination device  30 , the user U 12 A of the terminal device  20 A of which the angle information to the direction LN 21  is smallest. The information processing system  1  specifies the specified user U 12 A, for example, as a user who has started up the connection-destination device  30  with the connection-destination control device  40 . Thus, the information processing system  1  enables connection matching between the terminal device  20  and the connection-destination device  30  without any graphical user interface (GUI) and without troubling the user. 
     The information processing system  1  may perform, without presentation of confirmation of connection to the connection-destination device  30 , processing of connection to the user specified as having an interest in connection to the connection-destination device  30 . In this case, the information processing system  1  may perform processing of connection without processing of conditional connection. Referring to  FIG.  3   , for example, at the timing the user U 12 A starts up the connection-destination device  30 , the information processing system  1  may specify the non-specified user U 12 B as a user accidentally located inside the range RK 21 . Then, on the assumption that the user U 12 B is highly likely to move outside from the range RK 21 , the information processing system  1  may perform presentation of confirmation of connection to the connection-destination device  30 . In this case, the information processing system  1  may perform processing of conditional connection before processing of connection. The information processing system  1  enables confirmation of connection with no direct connection due to conditional connection. Furthermore, the information processing system  1  may specify, as a user being accidentally located, the user U 12 C located, from the connection-destination device  30 , at a distance equal to the distance between the connection-destination device  30  and each of the users U 12 A and U 12 B, but on the other side to the display. Note that the information processing system  1  does not necessarily perform processing of conditional connection to the user specified as being accidentally located. Thus, the information processing system  1  enables prevention of unnecessary processing, so that a reduction can be made in processing load. 
     (Processing  1  in Case where Plurality of Connection-Destination Candidates is Present) 
     With  FIG.  4   , described will be an overview of processing in a case where a plurality of connection-destination candidates is present. Similar descriptions to those with  FIGS.  2  and  3    will be appropriately omitted below. Referring to  FIG.  4   , a plurality of connection-destination devices  30  (connection-destination devices  30 A to  30 C) is located inside a range RK 31  with respect to the user U 12 . The plurality of connection-destination devices  30  corresponds to connection-destination candidates for the terminal device  20 . The range RK 31  indicates the distance between the terminal device  20  and each of the connection-destination devices  30 B and  30 C. Note that  FIG.  4    illustrates that the user U 12  is closed to the connection-destination device  30 A. Because the connection-destination device  30 A is closest to the user U 12 , the information processing system  1  specifies the connection-destination device  30 A as the connection-destination device  30  to which the degree of interest of the user U 12  is highest. Furthermore, the information processing system  1  calculates the degree of interest of the user U 12  to the connection-destination device  30 A. Then, on the basis of the degree of interest of the user U 12  to the connection-destination device  30 A, the information processing system  1  establishes conditional connection between the terminal device  20  and the connection-destination device  30 A. 
     (Conditional Connection with Face Authentication Processing) 
     With  FIG.  5   , described will be an overview of conditional connection with face authentication processing. Similar descriptions to those with  FIGS.  2  to  4    will be appropriately omitted below. The information processing system  1  first detects the user U 12  having moved inside a range RK 41  with respect to the connection-destination device  30  (S 11 ). Next, the information processing system  1  acquires image-capture information about the user U 12  captured by an image capturing device  50  (S 12 ). Note that the image capturing device  50  is, for example, a camera with which the connection-destination device  30  is equipped. Then, on the basis of the acquired image-capture information, the information processing system  1  specifies the direction of line-of-sight of the user U 12  to the connection-destination device  30 . For example, the information processing system  1  specifies the direction of line-of-sight of the user U 12  through line-of-sight detection technology with image analysis processing. Note that, with image analysis processing, the information processing system  1  may determine whether or not the face of the user U 12  is oriented to the front of the connection-destination device  30 . Then, on the basis of the specified direction of line-of-sight of the user U 12 , the information processing system  1  calculates the degree of interest of the user U 12  to the connection-destination device  30 . For example, the information processing system  1  calculates the degree of interest of the user U 12  to the connection-destination device  30  higher as the connection-destination device  30  is closer to the direction of line-of-sight of the user U 12 . Then, in a case where the calculated degree of interest fulfills a predetermined condition, the information processing system  1  transmits the image-capture information to the terminal device  20 . Then, the information processing system  1  compares the transmitted image-capture information with user information stored in the terminal device  20 , to perform face authentication processing of the user U 12  (S 13 ). Then, on the basis of a result of the face authentication processing, the information processing system  1  establishes conditional connection between the terminal device  20  and the connection-destination device  30 . Furthermore, when detecting movement of the user U 12  to the outside of the range RK 41  (S 14 ), the information processing system  1  cancels the conditional connection of the terminal device  20  to the connection-destination device  30  (S 15 ). 
     In the above example, the degree of interest of the user U 12  is calculated on the basis of the direction of line-of-sight of the user U 12 . There can be a case where the user U 12  has worn, for example, an eyewear-type device based on virtual reality (VR) or augmented reality (AR). In a case where the eyewear-type device is transmissive, the direction of line-of-sight can be detected as described above. However, in a case where the eyewear-type device is non-transmissive, the direction of line-of-sight cannot be detected. In that case, mainly, the degree of interest is calculated on the basis of distance information between the user U 12  and the connection-destination device  30 . Furthermore, in accordance with user&#39;s situation or the ambient environment, parameters, such as line-of-sight information and distance information, may be appropriately used independently or in combination. 
     (Processing  2  in Case where Plurality of Connection-Destination Candidates is Present) 
     With  FIG.  6   , described will be an overview of processing in a case where a plurality of connection-destination candidates is present. Similar descriptions to those with  FIGS.  2  to  5    will be appropriately omitted below. Referring to  FIG.  6   , a plurality of connection-destination devices  30  (connection-destination devices  30 A to  30 C) is located inside a range RK 51  with respect to the user U 12 . The plurality of connection-destination devices  30  corresponds to connection-destination candidates for the terminal device  20 . A direction LN 31  indicates the direction of line-of-sight of the user U 12 . In this case, the user U 12  has a line-of-sight to the connection-destination device  30 A in the direction LN 31 . The information processing system  1  calculates the degree of interest of the user U 12  to the connection-destination device  30 A highest because of the connection-destination device  30 A in the direction of line-of-sight of the user U 12 . Then, on the basis of the degree of interest of the user U 12  to the connection-destination device  30 A, the information processing system  1  establishes conditional connection between the terminal device  20  and the connection-destination device  30 . As a connection method, from among the connection-destination devices  30 A to  30 C of which the respective pieces of content can be listened to by the user U 12  having worn a headset, for example, under out-of-head localization or the like, for example, in response to a selection gesture, such as a nod, made by the user U 12  to the connection-destination device  30 A in the direction of line-of-sight of the user U 12 , connection may be established to the connection-destination device  30 A. 
     &lt;2.2. Exemplary Functional Configuration&gt; 
       FIG.  7    is a block diagram of an exemplary functional configuration of the information processing system  1  according to the embodiment. 
     (1) Information Processing Device  10   
     As illustrated in  FIG.  7   , the information processing device  10  includes a communication unit  100  and a control unit  110 . Note that the information processing device  10  includes at least the control unit  110 . 
     (1-1) Communication Unit  100   
     The communication unit  100  has a function of communicating with an external device. For example, in communication with an external device, the communication unit  100  outputs, to the control unit  110 , information received from the external device. Specifically, the communication unit  100  outputs, to the control unit  110 , information received from the terminal device  20  or the connection-destination device  30 . For example, the communication unit  100  outputs, to the control unit  110 , information for calculation of the degree of interest of the user to the connection-destination device  30 . 
     In communication with an external device, the communication unit  100  transmits, to the external device, information input from the control unit  110 . Specifically, the communication unit  100  transmits, to the terminal device  20  or the connection-destination device  30 , information regarding acquisition of information input from the control unit  110 . 
     (1-2) Control Unit  110   
     The control unit  110  has a function of controlling the operation of the information processing device  10 . For example, the control unit  110  calculates the degree of interest of the user to the connection-destination device  30 . Furthermore, on the basis of the calculated degree of interest, the control unit  110  performs processing of control of the operations of the terminal device  20  and the connection-destination device  30 . 
     In order to achieve the above function, as illustrated in  FIG.  7   , the control unit  110  includes an acquisition unit  111 , a processing unit  112 , and a provision unit  113 . 
     Acquisition Unit  111   
     The acquisition unit  111  has a function of acquiring information for calculation of the degree of interest of the user to the connection-destination device  30 . For example, the acquisition unit  111  acquires sensor information indicating information regarding the position or movement of the terminal device  20 . Specifically, the acquisition unit  111  acquires sensor information, such as acceleration information, gyro information, global positioning system (GPS) information, geomagnetic information, or radio-wave information. Furthermore, for example, the acquisition unit  111  may acquire sensor information indicating information regarding the relative position or relative movement of the terminal device  20  to the connection-destination device  30 . For example, the acquisition unit  111  may acquire sensor information regarding the travel time of a radio wave between the connection-destination device  30  and the terminal device  20 . 
     The acquisition unit  111  acquires information for determination of image-capture information. For example, the acquisition unit  111  acquires image-capture information captured by the connection-destination device  30 . Furthermore, for example, the acquisition unit  111  acquires user information stored in the terminal device  20 . 
     Processing Unit  112   
     The processing unit  112  has a function of controlling processing of the information processing device  10 . As illustrated in  FIG.  7   , the processing unit  112  includes a determination unit  1121 , a calculation unit  1122 , a switch control unit  1123 , and a notification determination unit  1124 . 
     Determination Unit  1121   
     On the basis of the information acquired by the acquisition unit  111 , the determination unit  1121  performs control regarding determination of image-capture information. On the basis of a determination result, for example, the determination unit  1121  determines whether or not a switch in connection of the terminal device  20  to the connection-destination device  30  is to be controlled. For example, the determination unit  1121  determines whether or not the image-capture information transmitted from the connection-destination device  30  includes the user information transmitted from the terminal device  20 . Then, in a case where the image-capture information transmitted from the connection-destination device  30  includes the user information transmitted from the terminal device  20 , the determination unit  1121  controls conditional connection between the terminal device  20  and the connection-destination device  30 . 
     Calculation Unit  1122   
     On the basis of the information acquired by the acquisition unit  111 , the calculation unit  1122  calculates the degree of interest of the user to the connection-destination device  30 . For example, on the basis of positional information between the connection-destination device  30  and the terminal device  20 , the calculation unit  1122  calculates the degree of interest of the user to the connection-destination device  30  such that the degree of interest of the user to the connection-destination device  30  is higher as the user is closer to the connection-destination device  30 . For example, on the basis of positional information calculated on the basis of the arrival time of a radio wave in the space between the terminal device  20  and the connection-destination device  30 , the calculation unit  1122  calculates the degree of interest of the user to the connection-destination device  30 . 
     For example, on the basis of angle information between the direction of line-of-sight of the user and the direction in which the front of the connection-destination device  30  faces, the calculation unit  1122  calculates the degree of interest of the user to the connection-destination device  30  such that the degree of interest of the user to the connection-destination device  30  is higher as the angle information is smaller. For example, on the basis of angle information calculated on the basis of the image-capture information captured by the connection-destination device  30 , the calculation unit  1122  calculates the degree of interest of the user to the connection-destination device  30 . 
     In a case where a plurality of connection-destination devices  30  is located in a predetermined range with respect to the terminal device  20 , the calculation unit  1122  calculates the degree of interest of the user to each of the plurality of connection-destination devices  30 . 
     Switch Control Unit  1123   
     The switch control unit  1123  controls a switch in connection to the connection-destination device  30  on the basis of a response of the user to confirmation of connection to the connection-destination device  30  on the basis of the degree of interest calculated by the calculation unit  1122 . For example, the switch control unit  1123  makes a switch in connection from the connection-destination device  30  that distributes first content to the connection-destination device  30  that distributes second content different from the first content. 
     In a case where a plurality of connection-destination devices  30  is located in a predetermined range with respect to the terminal device  20 , for example, the switch control unit  1123  controls a switch in connection to the connection-destination device  30  to which the degree of interest is highest. 
     The switch control unit  1123  controls a switch in connection of the terminal device  20  of the user of which the degree of interest fulfills a predetermined condition, to the connection-destination device  30 . For example, in a case where the degrees of interest to the connection-destination device  30  of all users in a predetermined space fulfill a predetermined condition, the switch control unit  1123  controls a switch in connection to an external information processing device different from the connection-destination device  30 . For example, the switch control unit  1123  controls a switch in connection to output equipment capable of outputting sound information as an external information processing device different from the connection-destination device  30 . Specifically, the switch control unit  1123  controls a switch in connection to a speaker. 
     On the basis of a gesture of the user to confirmation of connection to the connection-destination device  30 , the switch control unit  1123  controls a switch in connection to the connection-destination device  30 . For example, in a case where it is determined that a gesture indicating a request for connection is made to confirmation of connection to the connection-destination device  30 , the switch control unit  1123  controls a switch in connection to the connection-destination device  30 . Note that the gesture indicating a request for connection is, for example, a nod (e.g., nodding the head). Furthermore, the switch control unit  1123  determines the gesture indicating a request for connection, for example, on the basis of the image-capture information captured by the connection-destination device  30 , the sensor information detected by the terminal device  20 , or the like. 
     Notification Determination Unit  1124   
     The notification determination unit  1124  has a function of determining a notification destination to be notified of confirmation of connection, on the basis of comparison between the image-capture information acquired by the acquisition unit  111  and the previously stored user information. Note that the notification destination is, for example, the terminal device  20 . Furthermore, the notification destination is not limited to the terminal device  20  and may be any information processing device capable of notifying the user of confirmation of connection. For example, the notification determination unit  1124  compares the image-capture information about the user included in the image-capture information acquired by the acquisition unit  111  with the respective pieces of user information stored in terminal devices  20  in a predetermined range with respect to the connection-destination device  30 , to determine the notification destination to be notified of confirmation of connection. At this time, for example, the notification determination unit  1124  performs image analysis processing to the image-capture information acquired by the acquisition unit  111 , to acquire the image-capture information about the user included in the image-capture information. Furthermore, for example, the notification determination unit  1124  compares the image-capture information about the user of which the degree of interest to the connection-destination device  30  fulfills a predetermined condition with the respective pieces of user information stored in terminal devices  20  in a predetermined range with respect to the connection-destination device  30 , to determine the notification destination to be notified of confirmation of connection. 
     Provision Unit  113   
     The provision unit  113  has a function of providing control information for a switch in connection to the connection-destination device  30 . The provision unit  113  provides the control information for a switch in connection to the connection-destination device  30 , for example, to the terminal device  20 . For example, the provision unit  113  provides the terminal device  20  with control information based on a determination result from the determination unit  1121 . Furthermore, for example, the provision unit  113  provides control information for requesting the notification destination determined by the notification determination unit  1124  to perform presentation of confirmation of connection. Furthermore, for example, the provision unit  113  provides the connection-destination device  30  with control information for detecting the output destination of content that the connection-destination device  30  receives. 
     (2) Terminal Device  20   
     As illustrated in  FIG.  7   , the terminal device  20  includes a communication unit  200 , a control unit  210 , an output unit  220 , a sensor unit  230 , and a storage unit  240 . 
     (2-1) Communication Unit  200   
     The communication unit  200  has a function of communicating with an external device. For example, in communication with an external device, the communication unit  200  outputs, to the control unit  210 , information received from the external device. Specifically, the communication unit  200  outputs, to the control unit  210 , the image-capture information received from the connection-destination device  30 . Furthermore, the communication unit  200  outputs, to the control unit  210 , the control information received from the information processing device  10 . 
     (2-2) Control Unit  210   
     The control unit  210  has a function of controlling the entire operation of the terminal device  20 . 
     For example, the control unit  210  performs processing of receiving a response of the user to information for confirmation of connection. The control unit  210  transmits, for example, to the information processing device  10 , information regarding the received response of the user. 
     (2-3) Output Unit  220   
     The output unit  220  has a function of outputting information for confirmation of connection. For example, the control unit  210  outputs sound information for confirmation of connection. 
     (2-4) Sensor Unit  230   
     The sensor unit  230  has a function of acquiring sensor information measured by each measurement instrument. For example, the sensor unit  230  acquires sensor information, such as acceleration information, gyro information, GPS information, or geomagnetic information. The sensor unit  230  illustrated in  FIG.  7    may include an acceleration sensor unit  231 , a gyro sensor unit  232 , a GPS reception unit  233 , and a geomagnetic sensor unit  234 . 
     (2-5) Storage Unit  240   
     For example, the storage unit  240  is achieved by a semiconductor memory element, such as a RAM or a flash memory, or a storage device, such as a hard disk or an optical disc. The storage unit  240  has a function of storing data regarding processing in the terminal device  20 . 
       FIG.  8    illustrates an exemplary storage unit  240 . The storage unit  240  illustrated in  FIG.  8    stores user information. As illustrated in  FIG.  8   , the storage unit  240  may have items, such as “user ID” and “user information”. 
     The “user ID” indicates identification information for identifying a user. The “user information” indicates image-capture information about a user. For example, the image-capture information captured by the terminal device  20  is stored in the “user information”. In the example illustrated in  FIG.  8   , conceptual information, such as “user information # 11 ” and “user information # 12 ”, has been stored in the “user information”. In practice, for example, an illustrative image of a user (e.g., a face photo) or data of feature points of the face of a user is stored. 
     (3) Connection-Destination Device  30   
     As illustrated in  FIG.  7   , the connection-destination device  30  includes a communication unit  300 , a control unit  310 , an output unit  320 , and an image capturing unit  330 . 
     (3-1) Communication Unit  300   
     The communication unit  300  has a function of communicating with an external device. For example, in communication with an external device, the communication unit  300  outputs, to the control unit  310 , information received from the external device. Specifically, the communication unit  300  outputs, to the control unit  310 , the control information received from the information processing device  10 . Furthermore, the communication unit  300  outputs, to the control unit  310 , information regarding a determination result of the image-capture information received from the terminal device  20 . 
     (3-2) Control Unit  310   
     The control unit  310  has a function of controlling the operation of the connection-destination device  30 . 
     For example, the control unit  310  performs processing regarding acquisition of the image-capture information about the user. For example, the control unit  310  detects the user having come close into a predetermined range with respect to the connection-destination device  30 . For example, the control unit  310  acquires the image-capture information captured by the image capturing unit  330 . The control unit  310  transmits the image-capture information, for example, to the information processing device  10  through the communication unit  300 . 
     (3-3) Output Unit  320   
     The output unit  320  has a function of outputting content that the connection-destination device  30  receives. 
     (3-4) Image Capturing Unit  330   
     The image capturing unit  330  has a function of performing image capturing. For example, on the basis of detection of the user, the image capturing unit  330  performs image capturing. 
     &lt;2.3. Processing of Information Processing System&gt; 
     The function of the information processing system  1  according to the embodiment has been described above. Next, processing of the information processing system  1  will be described. 
     (1) Processing  1  in Terminal Device  20  and Connection-Destination Device  30   
       FIG.  9    is a flowchart illustrating a flow of processing in the terminal device  20  and the connection-destination device  30  according to the embodiment. Specifically, illustrated is a flow of processing in which the terminal device  20  and the connection-destination device  30  determine the output destination of sound information. Note that the following processing may be performed by the information processing device  10 . First, the connection-destination device  30  determines a candidate for the output destination of sound information (S 101 ). For example, the connection-destination device  30  determines, as a candidate for the output destination of sound information, the terminal device  20  in a predetermined range with respect to the connection-destination device  30 . Then, the connection-destination device  30  transmits, to the detected candidate, a request for conditional connection (S 102 ). Next, when receiving the request for conditional connection from the connection-destination device  30 , the terminal device  20  transmits a result to the request for conditional connection (S 103 ). For example, on the basis of whether or not the terminal device  20  is connectable, the terminal device  20  transmits a result to the request for conditional connection. Next, when receiving the result to the request for conditional connection from the terminal device  20 , the connection-destination device  30  transmits, to the terminal device  20 , information requesting presentation of confirmation of connection (S 104 ). Next, when receiving the information requesting presentation of confirmation of connection from the connection-destination device  30 , the terminal device  20  presents confirmation of connection to the user (S 105 ). Then, the terminal device  20  transmits, to the connection-destination device  30 , a response of the user to the confirmation of connection (S 106 ). Next, when receiving the response of the user, the connection-destination device  30  determines the output destination on the basis of the response of the user. 
     (2) Processing  2  in Terminal Device  20  and Connection-Destination Device  30   
       FIG.  10    is a flowchart illustrating a flow of processing in the terminal device  20  and the connection-destination device  30  according to the embodiment. Similar descriptions to those with  FIG.  9    will be appropriately omitted below. Referring to  FIG.  10   , face authentication processing is performed, differently from  FIG.  9   . The processing from steps S 201  to S 203  is similar to the processing from steps S 101  to S 103 . In step S 204 , the connection-destination device  30  transmits, to the terminal device  20 , image-capture information captured by the connection-destination device  30 . In step S 205 , when receiving the image-capture information from the connection-destination device  30 , the terminal device  20  presents confirmation of connection, on the basis of a determination result of the image-capture information. The processing in steps S 206  and S 207  is similar to the processing in steps S 106  and S 107 . 
     &lt;2.4. Various Types of Processing&gt; 
     The embodiment of the present disclosure has been described above. Next, various types of processing according to the embodiment of the present disclosure will be described. Note that the various types of processing to be described below may be singly applied to the embodiment of the present disclosure or may be, in combination, applied to the embodiment of the present disclosure. Furthermore, the various types of processing may be applied instead of the configuration described in the embodiment of the present disclosure or may be additionally applied to the configuration described in the embodiment of the present disclosure. 
     (1) Processing after Connection 
     In the above embodiment, after connection between the terminal device  20  and the connection-destination device  30 , the information processing device  10  may perform processing of applying operation information for operating the connection-destination device  30  (e.g., user interface (UI) information) to operation information about the terminal device  20 . Thus, with the operation information about the connection-destination device  30 , the user can operate content to be output on the terminal device  20 . Furthermore, the information processing device  10  may perform processing of outputting, on the terminal device  20 , menu information regarding content that the connection-destination device  30  receives (e.g., a list of menus). For example, the information processing device  10  may perform processing of outputting menu information regarding purchase of merchandise having been introduced in a program and acquisition of information about the merchandise. 
     (2) Specification Based on Connection-Destination Control Device  40   
     In the above embodiment, given has been the case where the information processing device  10  specifies the user who has an interest in connection to the connection-destination device  30 , on the basis of the angle information between a predetermined direction from the connection-destination device  30  to the connection-destination control device  40  and a predetermined direction from the connection-destination device  30  to the terminal device  20 . Here, in a case where the connection-destination control device  40  operates the connection-destination device  30 , on the assumption that the direction of the connection-destination control device  40  to the connection-destination device  30  is constant, the information processing device  10  may specify the user having the connection-destination control device  40  as the user who has an interest in connection to the connection-destination device  30 . Furthermore, in a case where the connection-destination control device  40  operates the connection-destination device  30 , on the assumption that user&#39;s hand operating the connection-destination control device  40  is constant in position or in length, the information processing device  10  may specify the user having the connection-destination control device  40  as the user who has an interest in connection to the connection-destination device  30 . 
     (3) Storage  1  of User Information 
     In the above embodiment, given has been the case where the information processing device  10  performs determination of image-capture information with the user information stored in the storage unit  240  of the terminal device  20 . Here, the information processing device  10  may store user information into the information processing device  10  and may perform determination of image-capture information with the user information stored in the information processing device  10 . In this case, the information processing device  10  may include a storage unit  120 . The information processing device  10  may acquire the user information by accessing the storage unit  120 . Then, the information processing device  10  may perform determination of image-capture information, on the basis of comparison between the image-capture information transmitted from the connection-destination device  30  through the communication unit  100  and the user information stored in the storage unit  120 . Note that, in this case, the information processing device  10  may perform determination of image-capture information by acquiring the identification information about the terminal device  20  transmitted from the terminal device  20  through the communication unit  100 . 
       FIG.  11    illustrates an exemplary storage unit  120 . The storage unit  120  illustrated in  FIG.  11    stores user information. As illustrated in  FIG.  11   , the storage unit  120  may have items, such as “terminal device ID”, “user ID”, and “user information”. The “terminal device ID” indicates identification information for identifying a terminal device  20 . The “user ID” and the “user information” each store information similar to that in the storage unit  240 , and thus the description thereof will be omitted. 
     (4) Storage  2  of User Information 
     The terminal device  20  may perform determination of image-capture information with the user information stored in the storage unit  240 . For example, the control unit  210  may perform processing regarding determination of image-capture information. For example, the control unit  210  may acquire the image-capture information transmitted from the connection-destination device  30 . For example, the control unit  210  may access the storage unit  240  to determine whether or not the image-capture information transmitted from the connection-destination device  30  includes the user information stored in the storage unit  240 . The control unit  210  may transmit information regarding a determination result, for example, to the information processing device  10  through the communication unit  200 . 
     (5) Response of User 
     A response of the user to confirmation of connection to the connection destination is not limited to the example in the above embodiment, and thus any response indicating a request from the user may be provided. For example, the response of the user according to the embodiment may be a response based on an operation (e.g., a click, a tap, an input, or a push on a button) to information displayed on the terminal device  20 . Furthermore, for example, the response of the user according to the embodiment may be a response based on a gesture, such as a nod. Furthermore, for example, the response of the user according to the embodiment may be a response based on audio, such as an approval utterance (e.g., “Yes” or “Yeah”). 
     (6) Switch to Speaker 
     In the above embodiment, given has been the case where the information processing device  10  controls, in a case where the degree of interest to the connection-destination device  30  of each user in a predetermined space fulfills a predetermined condition, a switch in connection to, for example, a speaker as output equipment capable of outputting sound information into the predetermined space. Here, in a case where a sound leakage outward from the predetermined space is a predetermined threshold or more, the information processing device  10  may make no switch in connection or control a re-switch in connection to the terminal device  20  of each user. Furthermore, on the basis of an attribute of each user (e.g., age or gender), for example, in a case where the optimum volume in sound is set to each user, the information processing device  10  may make no switch in connection or control a re-switch in connection to the terminal device  20  of each user. Furthermore, on the basis of an attribute of each user, for example, in a case where the difference between the age of the oldest user and the age of the youngest user is a predetermined threshold or more, the information processing device  10  may make no switch in connection or control a re-switch in connection to the terminal device  20  of each user. 
     (7) Types of Devices 
     In the above embodiment, the information processing device  10  may perform control, on the basis of the type of the device that each user wears. The information processing device  10  may perform control, for example, in accordance with a pair of earphones of an earhole open-air type or a pair of earphones of an earhole non-open-air type. 
     (8) Initial Registration 
     In the above embodiment, with connection-destination devices  30  previously registered as candidates connectable to the terminal device  20 , the information processing device  10  may control a switch in connection. For example, the information processing device  10  may access the storage unit  240  to acquire information regarding the previously registered connection-destination devices  30 . Then, in a case where the connection-destination device  30  to which a switch is to be made in connection is included in the previously registered connection-destination devices  30  as candidates, the information processing device  10  may control a switch in connection. 
     (9) Connection to Radio Type 
     In the above embodiment, in a case where the connection-destination device  30  serves as an information processing device of a broadcast (radio) type that broadcasts different sound information on each channel, such as radio, the information processing device  10  may control a switch in connection, on the basis of an operation through the terminal device  20 . Specifically, on the basis of an operation through the terminal device  20 , the information processing device  10  may perform processing of outputting the sound information on the channel selected by the user from the broadcasted sound information. 
     (10) Selection of Connection Destination by User 
     In the above embodiment, given has been the case where the information processing device  10  controls a switch in connection to the connection-destination device  30  corresponding to the connection destination to which the degree of interest is high. Here, in response to selection of the connection-destination device  30  by the user through the terminal device  20 , the information processing device  10  may control a switch in connection to the selected connection-destination device  30 . Note that, for example, the information processing device  10  may perform processing of presenting, on the display screen of the terminal device  20 , operation information for a start on a switch in connection. Furthermore, for example, the information processing device  10  may perform processing of presenting the identification information about the connection-destination device  30  previously determined as the connection-destination device  30  corresponding to the terminal device  20 . 
     (11) Personal Authentication 
     In the above embodiment, when controlling a switch in connection of the terminal device  20  to the connection-destination device  30 , the information processing device  10  may transmit, to the terminal device  20 , information for a request for personal authentication of the user. Then, on the basis of an authentication result of personal authentication of the user in the terminal device  20 , in a case where the user is authenticated, the information processing device  10  may control a switch in connection of the terminal device  20  to the connection-destination device  30 . 
     (12) Notification 
     In the above embodiment, due to a switch in connection of the terminal device  20  to the connection-destination device  30 , the terminal device  20  is unlikely to receive notification to the terminal device  20 . Here, the terminal device  20  may have an address for specification of the terminal device  20  on a communication network. Thus, the terminal device  20  can receive notification anytime, regardless of the connection destination in the connection relationship. Thus, for example, even while viewing and listening to a television (exemplary connection-destination device  30 ), the user can receive notification through a smartphone (exemplary terminal device  20 ). 
     (13) Modifications of Terminal Device  20   
     The terminal device  20  according to the embodiment may have the function of the connection-destination control device  40 . Specifically, the terminal device  20  may be a remote controller that controls the connection-destination device  30 . Note that the terminal device  20  may be achieved by any equipment having the function of the connection-destination control device  40 . Furthermore, the terminal device  20  may be a smartphone enabling an application to achieve the function of the connection-destination control device  40 . Note that the terminal device  20  may be achieved by any equipment enabling an application to achieve the function of the connection-destination control device  40 . 
       FIG.  12    illustrates exemplary modifications of the terminal device  20 . Specifically, illustrated are remote controllers as the terminal device  20 .  FIG.  12 (A)  illustrates the terminal device  20  in a case where a television and a video are located in a predetermined range. As illustrated in  FIG.  12 (A) , the terminal device  20  includes operation information about channels (channels  1  to  6 ), “+”, and “−”, corresponding to the television. Furthermore, the terminal device  20  includes operation information corresponding to a start on the video. Meanwhile,  FIG.  12 (B)  illustrates the terminal device  20  in a case where a television and an air conditioner are located in a predetermined range. Referring to  FIG.  12 (B) , included is operation information about “+” and “−”, corresponding to the air conditioner, differently from  FIG.  12 (A) . 
     In a case where a predetermined range in which the connection-destination device  30  is to be controlled is set, for example, indoors, all indoor home electronics are likely to be controlled. In response to definite orientation of the terminal device  20  to a specific connection-destination device  30  by the user, the information processing system  1  may display, on the screen of the terminal device  20 , such operation information as in  FIG.  12   . For example, the information processing system  1  may display, in response to orientation of the terminal device  20  to a television by the user, a remote controller for the television, display, in response to orientation of the terminal device  20  to an air conditioner by the user, a remote controller for the air conditioner, and display, in response to orientation of the terminal device  20  to an electric light by the user, a remote controller for the electric light. Furthermore, in a case where the user desires to operate a plurality of connection-destination devices  30 , the information processing system  1  may control the terminal device  20  such that each connection-destination device  30  is displayed on the screen of the terminal device  20  by switching in tab. Furthermore, in a case where AR is used in display on the terminal device  20 , the information processing system  1  may appropriately control the terminal device  20  such that the display screen of the remote controller is disabled from being kept displayed. 
     &lt;&lt;3. Exemplary Hardware Configuration&gt;&gt; 
     Finally, an exemplary hardware configuration of an information processing device according to the embodiment will be described with reference to  FIG.  13   .  FIG.  13    is a block diagram of an exemplary hardware configuration of the information processing device according to the embodiment. Note that the information processing device  900  illustrated in  FIG.  13    can achieve, for example, the information processing device  10 , the terminal device  20 , or the connection-destination device  30  illustrated in  FIG.  7   . Information processing by the information processing device  10 , the terminal device  20 , and the connection-destination device  30  according to the embodiment is achieved by hardware to be described below and software in cooperation. 
     As illustrated in  FIG.  13   , the information processing device  900  includes a central processing unit (CPU)  901 , a read only memory (ROM)  902 , and a random access memory (RAM)  903 . Furthermore, the information processing device  900  includes a host bus  904   a,  a bridge  904 , an external bus  904   b,  an interface  905 , an input device  906 , an output device  907 , a storage device  908 , a drive  909 , a connection port  910 , and a communication device  911 . Note that the hardware configuration herein is exemplary and part of the constituent elements may be omitted. Furthermore, the hardware configuration may further include other constituent elements in addition to the constituent elements herein. 
     For example, the CPU  901  functions as an arithmetic processing unit or a control device, and controls the entire operation of each constituent element or part thereof, on the basis of various types of programs recorded on the ROM  902 , the RAM  903 , or the storage device  908 . The ROM  902  corresponds to a means of storing, for example, a program to be read by the CPU  901  or data for use in computing. The RAM  903  stores, for example, a program to be read by the CPU  901 , various types of parameters that appropriately change at the time of execution of the program, and the like temporarily or permanently. These constituent elements are mutually connected through the host bus  904   a,  such as a CPU bus. For example, in cooperation with software, the CPU  901 , the ROM  902 , and the RAM  903  can achieve the function of the control unit  110 , the function of the control unit  210 , or the function of the control unit  310  described with reference to  FIG.  7   . 
     For example, the CPU  901 , the ROM  902 , and the RAM  903  are mutually connected through the host bus  904   a  enabling high-speed data transmission. Meanwhile, for example, the host bus  904   a  is connected, through the bridge  904 , to the external bus  904   b  relatively slow in data transmission rate. Furthermore, the external bus  904   b  is connected to various constituent elements through the interface  905 . 
     For example, the input device  906  is achieved by a device to which a listener inputs information, such as a mouse, a keyboard, a touch panel, a button, a microphone, a switch, or a lever. Furthermore, for example, the input device  906  may be a remote control device with infrared light or other radio waves, or may be external connection equipment, such as a mobile phone or a PDA, corresponding in operation to the information processing device  900 . Moreover, for example, the input device  906  may include an input control circuit or the like that generates an input signal on the basis of information input with the above input means and outputs the input signal to the CPU  901 . The administrator of the information processing device  900  can input various types of data or give an instruction for processing operation to the information processing device  900  by operating the input device  906 . 
     In addition, the input device  906  can include a device that detects the position of the user. For example, the input device  906  can include various types of sensors, such as an image sensor (e.g., a camera), a depth sensor (e.g., a stereo camera), an acceleration sensor, a gyro sensor, a geomagnetic sensor, an optical sensor, a sound sensor, a range sensor (e.g., a time of flight (ToF) sensor), and a force sensor. Furthermore, the input device  906  may acquire information regarding the state of the information processing device  900  itself, such as the attitude or movement speed of the information processing device  900 , or information regarding the ambient space of the information processing device  900 , such as the ambient brightness or noise of the information processing device  900 . Furthermore, the input device  906  may include a global navigation satellite system (GNSS) module that receives GNSS signals from GNSS satellites (e.g., global positioning system (GPS) signals from GPS satellites) and measures positional information including the latitude, longitude, and altitude of the device. Furthermore, for positional information, for example, the input device  906  may detect the position through Wi-Fi (registered trademark), transmission and reception with a mobile phone, a PHS, a smartphone, or the like, or near field communication. For example, the input device  906  can achieve the function of the sensor unit  230  described with reference to  FIG.  7   . 
     The output device  907  includes a device capable of notifying the user of acquired information, visually or aurally. Examples of such a device include a display device, such as a CRT display device, a liquid crystal display device, a plasma display device, an EL display device, a laser projector, an LED projector, or a lamp, an acoustic output device, such as a speaker or a pair of headphones, and a printer device, or the like. For example, the output device  907  outputs results acquired from various types of processing performed by the information processing device  900 . Specifically, the display device visually displays results acquired from various types of processing performed by the information processing device  900  in various formats, such as text, an image, a table, and a graph. On the other hand, the audio output device converts an audio signal including, for example, reproduced audio data or acoustic data, into an analog signal, and outputs the analog signal aurally. For example, the output device  907  can achieve the function of the output unit  220  or the function of the output unit  320  described with reference to  FIG.  7   . 
     The storage device  908  serves as a device for data storage provided as an exemplary storage unit of the information processing device  900 . For example, the storage device  908  is achieved by a magnetic storage-unit device, such as an HDD, a semiconductor storage device, an optical storage device or a magneto-optical storage device, and the like. The storage device  908  may include, for example, a storage medium, a recording device that records data on the storage medium, a reading device that reads the data from the storage medium, and a deleting device that deletes the data recorded on the storage medium. The storage device  908  stores, for example, a program and various types of data to be executed by the CPU  901  and various types of data acquired from outside. For example, the storage device  908  can achieve the function of the storage unit  240  described with reference to  FIG.  7   . 
     The drive  909  serving as a reader-writer for storage media is built in the information processing device  900  or is attached to the information processing device  900  externally. The drive  909  reads information recorded on a removable storage medium, such as a magnetic disk, an optical disc, a magneto-optical disc, or a semiconductor memory, loaded therein, and outputs the information to the RAM  903 . Furthermore, the drive  909  can write information on the removable storage medium. 
     For example, the connection port  910  serves as a port for connection of external connection equipment, such as a universal serial bus (USB) port, an IEEE 1394 port, a small computer system interface (SCSI), an RS-232C port, or an optical audio terminal. 
     For example, the communication device  911  serves as a communication interface including a communication device or the like for connection to a network  920 . The communication device  911  is, for example, a communication card for a wired or wireless local area network (LAN), long term evolution (LTE), Bluetooth (registered trademark), wireless USB (WUSB), or the like. Furthermore, the communication device  911  may be, for example, a router for optical communication, a router for asymmetric digital subscriber line (ADSL), or a modem for any type of communication. For example, the communication device  911  can transmit or receive a signal or the like to or from the Internet or other communication equipment, in accordance with a predetermined protocol, for example, such as TCP/IP. For example, the communication device  911  can achieve the function of the communication unit  100 , the function of the communication unit  200 , or the function of the communication unit  300  described with reference to  FIG.  7   . 
     Note that the network  920  includes a wired or wireless transmission line for information to be transmitted from a device connected to the network  920 . For example, the network  920  may include public line networks, such as the Internet, a telephone line network, and a satellite communication network, various types of local area networks (LANs) and wide area networks (WANs) inclusive of Ethernet (registered trademark), and the like. Furthermore, the network  920  may include a dedicated line network, such as an internet protocol-virtual private network (IP-VPN). 
     Above given has been the exemplary hardware configuration enabling achievement of the function of the information processing device  900  according to the embodiment. Each of the constituent elements above may be achieved with a general-purpose member or may be achieved by hardware specializing in the function of each of the constituent element. Therefore, depending on the technological level at the time of embodiment, the hardware configuration to be used can be appropriately changed. 
     &lt;&lt;4. Summary&gt;&gt; 
     As described above, on the basis of a response of the user to confirmation of connection to the connection destination presented on the basis of the degree of interest to the connection destination of the user having the terminal device  20 , the information processing device  10  according to the embodiment controls a switch in connection to the connection destination. Thus, for the connection destination of the terminal device  20  of the user, the information processing device  10  enables automatic selection and connection. Furthermore, for the connection destination of the terminal device  20  of the user, the information processing device  10  enables selection and connection with no GUI. 
     Therefore, provided can be an information processing device, an information processing method, and an information processing program, which are novel and improved, enabling acceleration of further improvement in usability. 
     The preferred embodiment of the present disclosure has been described in detail above with reference to the accompanying drawings, but the technical scope of the present disclosure is not limited to the examples. It is obvious that a person skilled in the technical field of the present disclosure can conceive various types of alterations or modifications in the scope of the technical idea described in the claims, and thus it is understood that such alterations or modifications rightfully belong to the technical scope of the present disclosure. 
     For example, each device described in the present specification may be achieved as an independent device, or part of the devices or each of the devices may be achieved as a separate device. For example, the information processing device  10 , the terminal device  20 , and the connection-destination device  30  illustrated in  FIG.  7    may be each achieved as an independent device. Furthermore, for example, achieved may be a server device connected to the information processing device  10 , the terminal device  20 , and the connection-destination device  30 , for example, through a network or the like. Furthermore, a server device connected, for example, through a network or the like may have the function of the control unit  110  included in the information processing device  10 . 
     Furthermore, a series of processing by each device described in the present specification may be achieved with any of software, hardware, and a combination of software and hardware. A program included in software is previously stored, for example, in a recording medium (non-transitory media) provided inside or outside each device. Then, for example, each program is read into a RAM at the time of execution by a computer and then is executed by a processor, such as a CPU. 
     Furthermore, the processing described with the flowcharts in the present specification is not necessarily performed in the illustrated order. Some processing steps may be performed in parallel. Furthermore, an additional processing step may be adopted, and part of the processing steps may be omitted. 
     Furthermore, the effects described in the present specification are just explanatory or exemplary, and thus are not limiting. That is, the technology according to the present disclosure has other effects obvious to a person skilled in the art from the descriptions in the present specification, in addition to the effects above or instead of the effects above. 
     Note that the following configurations belong to the technical scope of the present disclosure. 
     (1) 
     An information processing device including: 
     a calculation unit configured to calculate a degree of interest to a connection destination of a user having a terminal device; and 
     a connection switch unit configured to control a switch in connection to the connection destination, on the basis of a response of the user to confirmation of connection to the connection destination, the confirmation of connection being presented on the basis of the degree of interest calculated by the calculation unit. 
     (2) 
     The information processing device according to the (1), in which 
     the calculation unit 
     calculates the degree of interest, on the basis of positional information between the terminal device and the connection destination. 
     (3) 
     The information processing device according to the (2), in which 
     the calculation unit 
     calculates the degree of interest, on the basis of the positional information based on arrival time of a radio wave. 
     (4) 
     The information processing device according to any one of the (1) to (3), in which 
     the calculation unit 
     calculates the degree of interest, on the basis of angle information between a direction of line-of-sight of the user and a direction in which a front of the connection destination faces. 
     (5) 
     The information processing device according to any one of the (1) to (4), in which 
     the calculation unit 
     calculates respective degrees of interest to a plurality of connection destinations, and 
     the connection switch unit controls a switch in connection to a connection destination to which the degree of interest is highest. 
     (6) 
     The information processing device according to any one of the (1) to (5), in which 
     the calculation unit 
     calculates respective degrees of interest to the connection destination of users at a plurality of the terminal devices in a predetermined range with respect to the connection destination, and 
     the connection switch unit controls a switch in connection of the terminal device of a user, of which the degree of interest fulfills a predetermined condition, to the connection destination. 
     (7) 
     The information processing device according to the (6), in which 
     the connection switch unit controls, 
     in a case where the degree of interest to the connection destination of each of the users in a predetermined space fulfills the predetermined condition, a switch in connection to output equipment that outputs sound information into the predetermined space. 
     (8) 
     The information processing device according to any one of the (1) to (7), in which 
     the connection switch unit 
     controls a switch in connection such that sound information is acquirable from the connection destination. 
     (9) 
     The information processing device according to any one of the (1) to (8), in which 
     the connection switch unit 
     controls a switch in connection from a connection destination that distributes first content to a connection destination that distributes second content different from the first content. 
     (10) 
     The information processing device according to the (9), in which 
     the connection switch unit 
     performs control, on the basis of a response of the user to confirmation of connection for a switch in connection to the connection destination that distributes the second content. 
     (11) 
     The information processing device according to any one of the (1) to (10), in which 
     the connection switch unit 
     controls a switch in connection to the connection destination, on the basis of a gesture of the user to confirmation of connection to the connection destination as a response of the user. 
     (12) 
     The information processing device according to any one of the (1) to (11), further including 
     a notification determination unit configured to determine a notification destination to be notified of the confirmation of connection, on the basis of image-capture information captured by the connection destination and user information about the user stored in the terminal device. 
     (13) 
     The information processing device according to any one of the (1) to (12), in which 
     the connection switch unit 
     controls a switch in the connection through Bluetooth (registered trademark) or Wifi. 
     (14) 
     The information processing device according to any one of the (1) to (13), in which 
     the calculation unit 
     calculates the degree of interest at the terminal device capable of outputting sound information. 
     (15) 
     The information processing device according to the (14), in which 
     the calculation unit 
     calculates the degree of interest at the terminal device serving as a pair of headphones. 
     (16) 
     The information processing device according to any one of the (1) to (14), in which 
     the calculation unit 
     calculates the degree of interest to the connection destination capable of outputting image information. 
     (17) 
     An information processing method 
     to be performed by a computer, the method including: 
     calculating a degree of interest to a connection destination of a user having a terminal device; and 
     controlling a switch in connection to the connection destination, on the basis of a response of the user to confirmation of connection to the connection destination, the confirmation of connection being presented on the basis of the calculated degree of interest. 
     (18) 
     An information processing program for causing a computer to perform: 
     a calculation process of calculating a degree of interest to a connection destination of a user having a terminal device; and 
     a connection switch process of controlling a switch in connection to the connection destination, on the basis of a response of the user to confirmation of connection to the connection destination, the confirmation of connection being presented on the basis of the degree of interest calculated by the calculation process. 
     REFERENCE SIGNS LIST 
     
         
           1  Information processing system 
           10  Information processing device 
           20  Terminal device 
           30  Connection-destination device 
           100  Communication unit 
           110  Control unit 
           111  Acquisition unit 
           112  Processing unit 
           1121  Determination unit 
           1122  Calculation unit 
           1123  Switch control unit 
           1124  Notification determination unit 
           113  Provision unit 
           200  Communication unit 
           210  Control unit 
           220  Output unit 
           230  Sensor unit 
           240  Storage unit 
           300  Communication unit 
           310  Control unit 
           320  Output unit 
           330  Image capturing unit