Abstract:
An interactive system for teaching, entertaining, and habituating a child utilizes an interactive entity such as a doll, the doll having input and output elements and control circuitry adapted for driving the I/O elements, and a bi-directional communication link to a personal computer (PC). Scripted data stored at the computer directs doll activity and verbal articulation, and utilizes response from the child through the doll to the PC in directing output to the doll. The communication between the doll and the PC treats the doll as a peripheral device. In specific embodiments the interactive doll has servo-mechanisms for providing doll motion, such as eye and mouth and limb movement, which may be coordinated with verbalization in different scripts by commands retrieved at the computer and sent to the doll. In a preferred embodiment environments and applications are provided on CD-ROM disks which may also provide the operating application for the interactive doll system. Systems may be adapted for a broad range of functionality, such as acquaintance of a child with foreign languages, story telling, indirect interaction between an adult and a child through the medium of the doll, and much more.

Description:
FIELD OF THE INVENTION 
     This application is a Divisional of Ser. No. 09/073,019 filed May 4, 1998 which is a Continuation-in-part of Ser. No. 08/791,249 filed Jan. 30, 1997, U.S. Pat. No. 6,076,109 which is a Continuation-in-part of Ser. No. 08/629,475 filed Apr. 10, 1996, U.S. Pat. No. 5,727,159. 
     The present invention is in the area of computerized interactive toys, and pertains in an embodiment particularly to dolls and toy animals adapted as computer peripherals with bidirectional communication to a host computer remote from the interactive toy. 
    
    
     BACKGROUND OF THE INVENTION 
     Although the present invention is not limited to dolls, but extensible to many other articles such as stuffed animals and other toys, dolls are utilized in practicing the invention in many embodiments, and dolls are used herein as a convenient vehicle for illustrating aspects, features, and characteristics of the invention. A doll is a personal entity with which a child or adult may interact, among a broader class of personal entities. Children, for example, interact with toy cars, tin soldiers, model airplanes, cartoons, stuffed animals and other representative entities, and many if not all of such entities may be invested in some instances, by extension, with a human personality. There is nothing terribly unusual for example, in a child&#39;s world, about a talking car. We see such things on television in commercials and cartoons all the time. 
     The art of fashioning dolls and stuffed animals, such as teddy bears, is very old. Dolls have been found in ancient burial sites and archeological digs, and have served many purposes in the social history of human beings. 
     Dolls are typically made in an image of a human being, such as a baby, a small child, or a young man or woman, and it is important in many aspects of fashioning dolls to mimic human attributes. It is therefore reasonable that as technology of various sorts has developed in human history, the same technology has been applied in unique and often inventive ways to fashioning dolls. For example, as knowledge of human anatomy has developed, dolls with articulated limbs have been developed. Other technology has been applied to produce dolls that walk, talk, cry, drink, urinate, and so forth. 
     Interactivity between a human and a doll is known in the art as well, as simply as in a doll that makes a noise when it is squeezed or poked, or in dolls that close their eyes when placed in a reclining position and open their eyes when placed again upright. 
     In the record of development in fashioning dolls, electronics has played an important part. Dolls have been adapted with recording and playback equipment, for example, and with speakers, so dolls so equipped may speak to a child. Dolls have been fitted out with simple robotics devices, and made to crawl or walk. There are many other examples in the art of dolls comprising electronic gadgets to better simulate human activity and response. 
     There has been, however, a limitation in the level of sophistication that doll developers have been able to attain, due to a number of factors. Among these factors is the fact that dolls are, in many instances the charge and property of small children, who have no knowledge of electronics and mechanisms, and therefore cannot care for a doll as a machine. Equipment in such a doll needs to be rugged and durable. Cost is also a factor. Electronic equipment can be quite expensive in the relativity of things that are built into dolls, so there is a tendency to avoid very sophisticated equipment in dolls. 
     Another factor in doll development is the physical space available for electronics. Although some dolls are quite large, most are relatively small, and space for mechanisms and equipment inside a doll is limited. 
     For these and other reasons, electronic capabilities of dolls has been somewhat limited, so although dolls that speak a number of different phrases or perform a number of different human-like actions may be impressive to many, there is a need for much more capability in dolls. There are no dolls, for example, to the inventor&#39;s knowledge, that can carry on a conversation with a child, and certainly not in more than one language. There are no dolls that are capable, with prompting by natural interaction, to recite stories to a child, and to repeat portions of a story on request or just start and stop as the child reacts and responds. 
     As to a need for sophisticated interaction with a child, an article in Newsweek magazine for Feb. 19, 1996, titled “Your Child&#39;s Brain, discusses in some detail processes of learning in children, and indicates that children begin fundamental learning processes very early, perhaps as early as three months of age; and that these processes provide neural connections in a child&#39;s brain for distinguishing, for example, between different sounds. For a child to form such associations properly, however, the sounds need to be trueto-life. Unfortunately, animated dolls and animals up to the present time have been limited to few, and low-quality representations. 
     Extrapolating from the indications in this summary article, If a child is limited in cultural interaction until later in childhood than these critical months and years, that child horizons may be severely limited in later years There is a place for a very electronically sophisticated doll in such a scenario as an interactive companion for a child, wherein the doll may have access to substantial knowledge and skill, and also have ability to help a child learn new skills and develop mentally and emotionally healthy associations. 
     What is needed is a doll that has real-time access to a potentially unlimited data supply and variable abilities to interact with a child as a knowledgeable and articulate companion. A sophisticated computer, such as a high-end personal computer (PC), has such sophistication and capability, and access to mass storage devices and remote databanks through digital and analog communication links, and also interactive ability through I/O ports and communications, but one cannot expect a young child to sit for long in front of a computer or to interact with the computer. A young child will, however, interact with a doll, and may be expected to interact very strongly and closely with a very sophisticated doll. 
     SUMMARY OF THE INVENTION 
     In a preferred embodiment of the present invention an interactive system is provided, comprising a personal computer (PC) having a CPU, a memory, a first communication port adapted for peripheral communication coupled to the CPU, and control routines executable by the CPU; a personalized entity separate from the PC, having therein control circuitry coupled to one or more of input, sensing, and output devices, and to a second communication port adapted for peripheral communication; and a communication link coupling the first and the second communication port. Through execution of the control routines by the CPU, communication is executed between the PC and the personalized entity as a peripheral device, wherein stored data is retrieved by the CPU, passed to the personalized entity via the communication link, utilized in the personalized entity, and wherein data generated at the personalized entity is transferred to the computer via the communication link, and is utilized at the computer in conjunction with the control routines to guide selection of stored data to be retrieved and sent to the personalized entity. 
     In many preferred embodiments the personalized entity is a doll. In many such embodiments the communication link coupling the first and the second communication ports is a two-way wireless communication link. 
     In some embodiments there may be multiple personalized entities coupled to a single computer and operated simultaneously. In these and other embodiments devices at the personalized entity may include servo-mechanisms adapted for manipulating parts of the personalized entity, and wherein the control circuitry comprises an input/output (I/O) interface to switch power from an on-board power supply to activate individual ones of the servo-mechanisms to provide motion according to data sent to the personalized entity via the communication link. 
     In some embodiments sensing devices at the personalized entity include sensors adapted for sensing one or more of movement and environmental characteristics in the environment of the doll, and data derived from the sensors is communicated via the communication link to the computer and utilized in conjunction with the control routines to guide selection of commands to be sent to the personalized entity. Devices at the personalized entity may include a speaker adapted for enunciating audio data sent to the personalized entity via the communication link. There may also be a microphone adapted for receiving speech from a user of the doll, and the control circuitry in the personalized entity converts the input speech to audio data, and sends the audio data by the communication link to the PC. 
     In another aspect of the invention, an interactive personal article is provided, comprising a microcontroller; audio circuitry, a speaker, and one or more sensors coupled to the microcontroller; and a peripheral port coupled to the microcontroller, for connection of the interactive personal article to a host computer. The interactive personal article operates as a peripheral device through two-way communication with the host computer via the peripheral port, and wherein input from the one or more sensors is transmitted at the peripheral port, and audio data received at the peripheral port is converted at the sound circuitry and provided as output at the speaker. 
     In some embodiments the peripheral port further comprises circuitry to send and receive data over a wireless communication link. There may also be an I/O interface coupled to the microcontroller and to servo-mechanisms adapted to move portions of the personal article, and to an on-board power supply, and wherein movement commands received at the peripheral port are utilized to activate individual ones of the servo-mechanisms to provide movement of associated portions of the personal article. There may also be sensors adapted for sensing movement of portions of the personal article or characteristics of doll environment, and wherein signals from the sensors are converted to data signals at the I/O interface and transferred to the peripheral port for transmission In some embodiments the wireless communication link is one of an infra-red link, a radio frequency broadcast link, a fiber-optic link, and an inductively-coupled link. The microcontroller, the audio circuitry, and the peripheral port may all be implemented on an application-specific integrated circuit (ASIC). In a preferred embodiment the interactive personal article is a doll. 
     Interactive systems according to this invention provide a doll and/or other interactive entity with much more sophistication than has ever been possible before, and with access to all of the power and data handling capabilities of a state-of-the-art personal computer. Mass storage devices at the computer and data and control routines accessible by the computer at remote locations all become accessible to the doll, so data output and quality at the doll is nearly unlimited. For the first time, a personal robotic companion and other interactive articles may be provided for a child which may serve to acclimatize and socialize the child, as well as to teach an enormous quantity of information. At the same time, systems according to embodiments of the invention provide new functionality usefully by doctors, psychologists, other behavioral scientists, and others, in communication with young children. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a mostly diagrammatical illustration of an interactive doll system according to an embodiment of the present invention. 
     FIG. 2 is a more detailed diagram of control and power systems in the interactive doll system of FIG.  1 . 
     FIG. 3 is a generalized flow diagram of data flow and response in the interactive doll system of FIG.  1 . 
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Overall Aspects of Interactive System 
     FIG. 1 is a mostly diagrammatical illustration of an interactive doll system  11  comprising a doll  13  adapted for bi-directional communication with a PC  15  and for interactivity with a person, in an embodiment of the present invention. This unique arrangement provides a doll that is relatively inexpensive for the capability it may exhibit, void of very delicate, relatively expensive mass-storage devices such as hard disks and CD-ROM drives, and yet capable of virtually unlimited interactivity with a person. 
     PC  15  in a preferred embodiment is a high-end PC with a state-of-the art CPU, a CD-ROM drive, a windows-type operating system, a high-speed modem, and Internet browsing software, and a high-capacity hard disk drive. Exactly these characteristics, however, is not a specific limitation on the invention, as many sorts of PCs exhibiting a broad range of capabilities might be incorporated. In some embodiments no mass storage device is needed, and all control routines and data are imported from remote locations. In other embodiments, control routines are provided by tape, CD-ROM, and the like. In various embodiments, capabilities of a system  11  will be a function of the capabilities of the host PC, among other things. 
     The shape of doll  13  is somewhat arbitrary. Dolls of many different shapes, sizes, ethnic attributes, and the like may be used, and clothing and accessories for the doll may be as varied as is commonly seen for commercially-available dolls. Moreover, it will be clear from descriptions that follow, that a doll shape is not required for practicing the invention. Other entities may be used in alternative embodiments, such as animal caricatures, robot-like entities, even toys such as toy automobiles and the like. The example of a doll, however, is convenient for conveying many aspects of the invention. 
     Also, the power of state-of-the art PCs is such that multiple entities may be managed by a single PC, and in some cases separate entities may be managed simultaneously, and there may be interaction between the managed entities; between two separate dolls, for example, or between a managed doll and a toy car or other entity. 
     Doll  13  in FIG. 1 is a self-contained mechanism comprising both sensors for touch, temperature, and movement; and activators, such as solenoids and motors connected to mechanisms to provide movement of various parts of the doll. servo-mechanical systems  17   a  and  17   b  provide eye movement; servo-mechanical system  19  provides mouth movement; servo-mechanism  20  provides movement of the head in multiple axes; servo-mechanisms  21  provide shoulder articulation; servo-mechanisms  23  provide elbow articulation; servo-mechanisms  25  provide hand and wrist articulation; servo-mechanisms  27  provide hip movement; and servo-mechanisms  29  provide knee articulation. It will be apparent to those with skill in the arts related to robotics that there are many electromechanical systems known that can be applied to provide movement to the doll and other entities that might be used in other embodiments. 
     In addition to the servo-mechanisms described above, doll  13  has a speaker  37  for providing speech and other sound effects for the doll. Speaker  37  is coupled to the power and control system in a manner described more fully below. A microphone  39  for audio feedback is also provided, and coupled to power and control system in the doll also in a manner more fully described below. 
     Specific sensors are not shown in FIG. 1, but many sorts may be used in various embodiments. For example, an acceleration sensor may be incorporated in the system and set to a threshold to monitor rough movement, such as falling to the floor. Rapid deceleration in such a case could be used to trigger a response from the doll, such as an admonition to be careful and not to play too rough. Other sensors may be used for temperature, and the doll may respond, through processed to be described below, with indications of comfort or discomfort. Tactile sensors may also be used, so touching a doll in different places and in different ways may elicit appropriate responses as well. 
     Doll  13  in FIG. 1 has electronic control circuitry  31  for managing functions of the doll, and for coordinating input from sensors and output to electromechanical systems. The control circuitry includes a microprocessor, a memory, digital sound circuitry, and interface circuitry for operating the various servo-mechanisms that provide movement of the various moveable portions of the doll. Input/Output (I/O) interfaces for switching power to servo-mechanisms via logic-level, computer-generated signals are well known in the art. 
     Power supply  33  may be any of a number of storage and rechargeable power systems suitable for the power requirements of such a doll. Many sorts of storage power supplies are known in the art and would be suitable for powering such an electromechanical doll. In some embodiments storage cells are used, in others, rechargeable batteries such as those used for cellular phones and cordless power tools are incorporated. In some embodiments, power is provided from outside the doll by a tether or other connection to an external power source. 
     In addition to the control, sensing, speech and other audio output, and servo-systems briefly described above, doll  13  in interactive doll system  11  has a communication link to host computer  15 . In one embodiment the communication link is a serial link to an industry-standard serial port at the computer. In another embodiment, the link is a parallel link via a standard or enhanced parallel port. In other embodiments the communication link is a cordless link, by any of several well-known methods, such as, for example, RF broadcast, UHF broadcast, infra-red, fiber-optic, inductively-coupled, and so forth. In FIG. 1, a cord-type communication link  41  is indicated. Cord or cordless links may be implemented by a number of different protocols, including among others, standard serial port (SSP), standard parallel port (SPP), by audio analog from a sound card in the host, by a special device as an add-on card to the host, by a soon-to-be available Universal Serial Bus (USB) developed by a computer-industry consortium, and others. 
     Doll  13  is an interactive peripheral device to host computer  15  in interactive system  11 , a computer peripheral in words of the art. It is by the communication link that doll  13  attains access to the full computing and data power of host  15 . In a preferred embodiment, as described briefly above, the host computer is a state-of-the art PC having both a high-capacity hard disk drive and a CD-ROM drive, as well as a powerful CPU, such as one of the Intel Pentium™ CPUs available at the time of this specification. The choice of communication link is driven by, among other factors, the sophistication of doll  13  and host  15 . If both are relatively sophisticated, a higher speed and broader-band link is desirable, because the data flow will be more robust. In less sophisticated systems, slower and less-broad links are indicated. 
     In various embodiments of the present invention described herein, just as most computers may support two or more peripheral devices, a state-of-the-art PC has sufficient power to support two or more interactive dolls or other interactive entities simultaneously and in substantially real time. Several dolls may be thus supported and operated from the same software script. In embodiments described, it is thought sufficient to describe one such doll in each embodiment. 
     By the fact of the peripheral connection, interactive doll  13  acquires all of the considerable computing and data power of the host. In alternative embodiments, wherein the host has an appropriate analog or digital telephone modem and Internet operative software, the doll acquires in addition access to numerous stores of data from all over the Earth. The doll as a computer peripheral becomes a doll with aptitude and attitude. 
     More Detailed Structure of Doll and PC 
     FIG. 2 is a diagram of control and power systems in both host computer  15  and doll  13  of FIG. 1, including alternate communication links between the two, in more detail than is shown in FIG.  1 . PC  15  is, in its hardware-only aspects, a conventional PC, comprising among other hardware components a CPU  43 , random-access memory (RAM)  45 , a hard-disk drive (HDD)  47 , and a CD-ROM drive  49 . Communication between the components is via bus structures  50 . It will be apparent to those with skill in the art that in state-of-the art PCs bus communications can be more complex than shown in FIG. 2, including local buses, peripheral buses, and the like, with connecting chip sets. Bus structure  50  is meant merely to represent any conventional sort of bus arrangement between well-known components. 
     In addition to internal components, PC  15  has also a keyboard controller (KBC)  40  and a connected keyboard (KBD)  42 , a pointer device  44 , a display adapter  46 , and a display monitor  48 , as is known with most state-of-the-art PCs. 
     As explained briefly above, a high-end PC is preferred to provide computing power and mass-storage capacity for relatively sophisticated interactive doll applications, but less powerful systems may be utilized for less sophisticated applications. In practice, if a customer for such a doll has already a computer in the home, he or she may purchase a doll and control routines to match the capacity of the already-available PC. 
     PC  15  has also in this embodiment a microphone  55  and a speaker  57  with appropriate audio circuitry  59  providing analog-to-digital and digital-to-analog conversion for audio communication with an operator at PC  15 . Devices known as CODECs are commercially available for this function. There is also a modem  51 , which may either of an analog or digital type, such as an Integrated Services Digital Network (ISDN) interface, and also resident software for Internet access and browsing. PC  15  has also a serial port  53 , which in this embodiment is used for communication with doll  13  over serial communication line  41 . 
     Control circuitry  31  introduced above in doll  13  is indicated in FIG. 2 in additional detail. The outer aspects of the doll are indicated only by a dotted area in FIG. 2, but it should be understood, as briefly explained above, that many sorts of dolls with many kinds of clothing and decorations may be used. The environment is not limited to dolls, either, and other entities may be used, depending only on the imagination of suppliers of control environments for such interactive entities, as is described in more detail below. 
     Management functions are provided by a microcontroller  61 . The microcontroller has on-board registers providing a minimum buffer capability for data stream from PC  15  in operation in many embodiments. In some embodiments there may be other storage capability, but it is preferred that as much functionality as possible be provided by PC  15 , keeping doll  13  cost effective. Digital components are shown connected through a bus structure  62  in FIG. 2, which, as for PC  15 , represents any of a variety of buses and combinations of buses that might be used. In doll  13 , however, it is preferred that as many of the digital functions as possible be provided on board a single ASIC chip, so bus communications will be, in most embodiments, an on-chip function. 
     Doll movement of various sorts is provided by servo-mechanisms  65 , representing the several servo-mechanisms described above for head, eye, hand, arm movement and so forth. As described above, different embodiments of interactive dolls according to the invention may have different sets of servo-mechanisms, and more or less sophisticated movement abilities. 
     Feedback for range and speed of movement of doll parts and the like is provided by sensors  67  associated with servo-mechanisms  65 . Such sensors, which may include optical sensors, trip switches, proximity sensors and so forth are well-known in the arts of machine control and robotics, and need not be described in detail herein. Sensors  67  are meant to represent also stand-alone sensors for such as local temperature, pressure. Tactile sensations and so forth for doll  13 , and may or may not be used, depending on requirements of specific embodiments. 
     Both sensors  67  and servo mechanisms  65  are interfaced through an I/O interface  69  connected to power supply  33  and controlled by digital signals provided on bus structure  62 . Such I/O interfaces are well known in the arts of machine control and robotics, and are familiar to those with skill in these arts. Many or all of these I/O functions may also be provided on the same ASIC chip comprising microcontroller  651 . 
     Digital signals are decoded by I/O interface  69  to switch power from power supply  33  to various of servo-mechanisms  65  for producing doll motion, and motion is monitored by various of sensors  67 . Input to I/O interface  69  from sensors  67  are provided to microcontroller  61  as digitized signals, and used by control functions for control of doll motions. 
     Doll  13  also has sound circuitry  71  interfacing a microphone  73  and a speaker  75  to bus structure  62  and microcontroller  61 , whereby the doll may speak to a child or other person, and the child or other person may speak to the doll and have verbal communication digitized and provided to control systems in the doll and the PC. As described for PC  15 , the sound circuitry may be provided by a commercially available CODEC. 
     There is also a port  77  connected to bus structure  62  in doll  13 , in this embodiment a serial communication port, for communication with PC  15 . In a preferred embodiment this port and its digital circuitry are integrated with the ASIC of the microcontroller and other digital components. Port  77  in doll  13  and port  53  in PC  15  are connected by serial line  41 , providing serial communication between the doll and the PC. 
     In alternative embodiments communication is provided in a manner other than by a serial communication line  41  as shown in FIG.  1  and FIG.  2 . Cordless communication is preferred in many embodiments to provide freedom of movement for the doll and person with the doll, and for safety for young children. With appropriate circuitry communication can be by infra-red code, by inductive coupling, and by broadcast links of several types. In one embodiment cell phone circuitry is utilized to provide communication between the host and the doll. Cordless communication interfaces  12  and  14  in FIG. 2 are meant to encompass the several types of cordless communication that might be used. 
     In some embodiments using broadcast communication, maximum freedom of movement is provided by having relay station capable of receiving, transmitting and amplifying communication signals. Relay stations may be provided, for example, throughout a home or building, with a single PC at one location, so a cordless system with limited range may cover a much broader area. 
     In the general arrangement shown, the doll is a peripheral device to the PC, having two-way communication, and the considerable power of the PC, including data and control routines from HDD  47  and CD-ROM drive  49 , as well as data and routines available from the Internet, is made available to the interactive doll. With such computing and data power, a truly interactive and realistic doll may be provided, and there is potentially no limit to the data and personality structures available to doll  13 . 
     Generalities and Specifics of Operation 
     In one preferred embodiment an operating system for doll  13  is provided on a CD-ROM disk, which, in the current state-of-the-art has the several hundred megabytes of capacity needed for full functionality of such a sophisticated interactive doll. In its outer aspects a doll  13  would be sold as an identifiable entity with integrated clothing and accessories, much as conventional dolls are sold today. Dolls may thus be provided in a broad range of ages, races, cultures, and the like, to suit the needs of many potential users. An individual doll may also have a name, or be named by the purchaser, and a limited range of clothing and accessories may also be provided with the doll. 
     A doll will be provided with all necessary interface hardware, which, in the case of a serial connection with a tether, will amount to the tether connected to or connectable to the doll and to a serial port of a host computer. 
     Also provided with the doll will be one or more CD-ROM disks for loading on a PC as well as instructions for connection and initialization. The CD-ROM provides the operating environment for the doll, to be loaded on the host PC and executed by the host CPU, and a complete interactive software system for the doll. The CD-ROM can provide one or more personalities for the interactive doll, for example, and completely scripted environments. Third party suppliers will be encouraged to provide environments and personalities of many different sorts for many different purposes. 
     When doll  13  is connected to host  15  and properly configured, one simply inserts the appropriate CD-ROM disk in drive  49  and boots the environment program on the disk. Depending on the environment, there may or may not be an accompanying interactive display. 
     FIG. 3 provides a generalized flow diagram of data flow between host  15  and doll  13 , and general operations on each side. In FIG. 3, at step  79  the environment software is loaded from a CD-ROM for execution. At  81  CPU  43  is executing environment software. As each line of script in execution is executed, at step  83  the nature of the script is determined. If the script is for sending voice, a predetermined voice packet is sent (path  87 ) to the host send/receive interface  85  for transfer to the doll over the communication link. Interface  85  can be any of the interfaces indicated as  53  and  12  in FIG. 2, and described above relative to FIG.  2 . 
     In some embodiments direct voice communication is allowed from a microphone in the host to the speaker in the doll, and this direct voice feature is represented as beginning at step  88 , which bypasses other controls. Voice input in this case passes from microphone  55  (FIG. 2) through audio circuitry  59 . Audio data goes to the doll via link  41 , and is converted again and output at doll speaker  75 , step  103  in FIG.  3 . 
     In these embodiments direct voice is also enabled between the doll and the host. This feature is presented as beginning at step  90 . Voice input passes from microphone  73  in the doll, through circuitry  71 , is passed to the PC via line  41 , and directed to circuitry  59 , then speaker  57 , represented as step  92  in FIG.  3 . 
     If the script is for movement of the doll a movement command is sent to interface  85  (path  89 ) for transfer to the doll over the communication link. Some scripts require a specific input from the doll (path  91 ). If at step  93  the awaited input is received, control proceeds to a new line of script at step  95 , directed by the response. One example of prompted response is return of a sensor limit after a directed movement of a portion of the doll. Sensor return is not always required, however. Some movements are timed, and others are simply repetitive. Another example is an expected voice response after a voice output to the doll. In a teaching activity, for example, the host might ask a question, await a voice response, decode the voice response, and proceed accordingly. 
     In some applications, script is provided to link microphone  55  in host  15  with speaker  75  in the doll. The linkage is, of course, indirect, in that the voice input at the host is digitized, sent to the doll, then converted again to analog form for voice output. In this manner, a parent, a behavioral specialist, or other operator at a computer may speak to a child through the interactive doll in substantially real time, and through microphone  73  at the doll, the child may respond in substantially real time. The doll becomes, in this application, a surrogate for the computer operator. A child, who may not interact directly with an adult, might very well interact responsively to the doll. 
     On the doll side of the system, send/receive interface  97  represents either of port  77  and cordless interface  14  in FIG. 2, in any of the various forms described above. Step  99  represents data packets received from host  15 . At step  101  the nature of data packets, voice or movement, is ascertained. If voice, data is directed to step  103  where the data stream is converted to audio voice via speaker  75  in the doll. 
     If the data is determined to be for movement, the data stream is directed to step  105  (I/O interface  69 ) and movement is initiated at step  107 . At step  109  a completion signal or other sense of the directed move is returned to interface  97  for transfer to host  15 . In embodiments using a microphone  73  in the doll, all voice picked up at the doll is transferred to the host, and the host discriminates by means of scripted function to respond to such input. Most input elicits no response or new commands from the host. The host, as described above, in some instances seeks audio response, and in these instances is enabled to direct continuing interaction on the basis of receipt of a response. Path  94  in FIG. 3 represents responses to the host from the doll environment, which may be voice or of other nature. 
     As described above, FIG. 3 is meant to represent general data and command flow in the system of the intercommunicating doll and host. It will be apparent to those with skill in the art that there are many alternatives to this diagram, and that actual communication and action is managed by CPU  43  in the host and microcontroller  61  in the doll. 
     Some scripted programs provided by CD-ROM provide an interactive interface on display monitor  48  at host  15 , and others do not. In some instances the operation of the doll system is in the background and transparent to a user of the computer, who may be using other applications, such as a word processor or Internet browser. For example, a CD disk may be provided with stories, poetry, nursery rhymes and the like for a child, the material to be spoken to a child by the doll, prompted by the child. In this embodiment the child may request a particular selection, wherein the system may key on a word or combination in the child&#39;s spoken request, and track to that selection and recite the wanted selection. Other interactivity may be provided, such as a repeat request by the child causing the system to back up some predetermined time in the selection being played, and restart. 
     An application of this sort needs no display or input from an operator at the computer host. Most state-of-the-art computers are sufficiently powerful to operate such a system transparently, and still operate another application for a user. 
     Another useful embodiment that may operate transparently is an embodiment that simply recites selections to a child in a foreign language, that is, other than the child&#39;s native language, perhaps providing time between some words for the child to repeat words or phrases. The simple recitation is known to provide mental associations for a child in preparing the child to deal with the language at a later time. 
     An example of an embodiment utilizing an interface on display monitor  48  is an embodiment wherein interactivity may be altered or programmed by selection and input at the host. Some interactive applications on CD-ROM may have alternative scripts at alternative portions in a single script. A menu interface in these cases is presented on the display monitor enabling a user at the PC to select alternatives. 
     In some embodiments, programming may be done at an interactive  30  interface on display monitor  48 . A parent may, for example, in some embodiments, record messages and stories for a child, which than become a part of a script for interactivity between the child and doll  13 . 
     It was described above that use may be made in some embodiments of modem  51  with Internet access software and browser software. In one embodiment, the modem connection may be used to connect two hosts each having loaded routines to interact with a doll  13  (two dolls at two different locations, which may be any distance apart). A link is established in this embodiment between a child at a first location, through a doll to a host PC at the first location, to a PC at another location, and from that PC to another doll to another child. The two children may then interact through the two dolls. 
     It will be apparent to those with skill in the art that there are many uses for such a powerfully interactive doll or other entity, having all of the capability of a state-of-the art PC. Uses have been described for educational purposes, for behavioral science (a child psychologist may use such a doll to interface with a child patient), for language familiarization and instruction, for games, for storytelling, and for many other purposes. As described briefly above, third party suppliers are to be encouraged in the practice of this invention, to prepare scripts for many purposes for persons having dolls and computer hosts according to various embodiments of the invention. Every new script provides a new embodiment of the invention. 
     It will also be apparent to those with skill in the art that there are many alterations that might be made in both hardware and control aspects in embodiments of the invention described herein without departing from the spirit and scope of the invention. There are, for example, many ways the electronic circuitry, the servo-mechanical mechanisms, and the communication elements in the doll might be implemented. Some dolls within the scope of this invention might have simply two-way voice communication with a host, while others may have very extensive robotic systems and sensors. Similarly software aspects may vary widely. Software is an art as much as a science, and many programmers have personal preferences for code sequences and the like to accomplish similar ends.