Abstract:
A computer-aided geographic system highlights a specified area of a map based on operator input. In a preferred embodiment, a voice recognition system receives the operator input in voice form and determines the area to be highlighted. In the preferred form, the map used is a globe, and computerized controls turn and tilt the globe in response to the voice command so that one or more spotlights inside the globe illuminate the area of interest. Information related to the geographic location selected may be retrieved and simultaneously displayed on a computer monitor, video screen, slide screen, and/or narrated by synthesized voice.

Description:
This application is a Continuation of Ser. No. 07/966,830, filed Oct. 27, 1992, now abandoned. 
    
    
     A portion of the disclosure of this patent document contains material which is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office file or records, but otherwise reserves all copyright rights whatsoever. 
     FIELD OF THE INVENTION 
     The present invention relates to a voice-interactive computer-controlled system wherein a specific location of a city or a geographical region is localized on a world globe and illuminated upon voice requests. The voice input also prompts an audio-visual display of related information on a computer monitor or a projection screen with a narrated display of still pictures or brief movie captions of scenes from the city and geographical region. 
     BACKGROUND OF THE INVENTION 
     A recent Gallup poll of eight nations revealed that 75% of Americans polled could not find the Persian Gulf on an outline map and that over half could not locate Great Britain (GENIP News, 1989). Americans ranked a poor sixth out of the eight nations surveyed. Furthermore, there is evidence that the problem is getting worse. In 1984, 2,200 North Carolina college students responded to the same questions posed in a 1950 New York Times survey. When asked if they could name the country where the Amazon River is mainly found, only 72% responded correctly in 1984 compared to 78% in 1950. When asked where Manila was located, accurate responses declined from 85% in 1950 to 27% in 1984. Surveys documenting the extent of American geographic illiteracy are commonplace in scholarly journals and many newspapers. A January, 1987, survey of 5,000 high school seniors in eight major American cities revealed that 45% of the Baltimore students could not locate the United States on a map and 25% of the students in Dallas could not name the country that borders us on the south! Kilpatrick (1987) commented, &#34;Students don&#39;t protest over Vietnam now--they don&#39;t even know where it is.&#34; 
     American geographic illiteracy is not only a political problem, it is an increasingly costly economic problem. It is no coincidence that our worldwide economic competitiveness and, ultimately, our standard of living, have declined hand-in-hand with our geographical knowledge. American economy is now highly dependent on foreign sales abroad and foreign investments at home. Foreign trade generates over half of the sales and profits of Fortune 500 companies and American farmers export 40% of their products (Clawson, in press). As Mylle H. Bell, Director of Corporate Planning for Bell South Corporation noted, &#34;A big part of what is now missing in American education is a fundamental understanding of who fits where in the world . . . physically and culturally. Without this essential first stepping stone, it is very hard to go very far in pursuit of international commerce, no matter how good one&#39;s wares might be&#34; (GENIP News, 1988). 
     Educators and others see American geographic illiteracy as one of extreme urgency. So much so that the National Geographic Society promoted &#34;National Geography Awareness Week&#34; Nov. 12-18, 1989. Individual and national well being are affected by geographic ignorance. 
     Individuals at any level of education have difficulty locating places on a map, especially if the place happens to be in a foreign country or in an area far outside of a given individual&#39;s circle of activities. Successfully locating a place on a map or a globe does not necessarily provide the ability to associate the place at a later date with a geographical location or a country unless associated information is given which provides future cues to remind the individual of the place. 
     Average or below average students often have great difficulty learning geography. Even students who are excellent in geography quickly forget memorized names of major cities and countries unless they are used frequently. 
     Furthermore, business promoters for a specific locality are limited by brief and, often, unsatisfactory television spots or pamphlets. They need new and unique ways to relay information about their locality to attract prospective investors or outside business people. 
     Also, existing narrated audio-visual presentations for self-paced studies and training courses, which play a vital role in learning, rely on synchronized, sequential presentation of audio and visual means. It is awkward for a speaker to manually control the audio-visual displays associated with the presentation or rely on someone else to assist him or her. This often leads to confusion and distracts from the course of the presentation. 
     As far as the inventor is aware, the prior art does not provide a system and method for displaying geographic information like the system and method herein disclosed. Prior U.S. patents do show systems which operate in response to voice commands. For example, U.S. Pat. No. 4,641,342 relates to a voice input system for a voice recognizer circuit wherein a cue signal is issued to the user to indicate system readiness. A voice detector detects the presence of a voice signal. Control circuitry determines if a voice is detected prior to the end of the initial cue signal. If so, this causes a second cue signal to be issued, thereby preventing a loss of voice input. The voice detector can also be used to selectively switch from an active one of plural user channels to one of a similar number of voice recognizers. However, the disclosed system does not teach the art of effectively controlling a system that interfaces with the voice input device. 
     U.S. Pat. No. 4,776,016 discloses a voice control system which is designed to be adaptable to existing computers so that the existing computers may be operated by voice commands. In the preferred embodiment, the invention is connected into the existing keyboard control means and the computer itself with the system. Software controls a priority switch, giving the keyboard priority over voice entries so that the keyboard may still be used even with the invention connected into the circuit. In the preferred embodiment, voice commands are used so that the existing hardware with existing software incorporated therewith, may be effectively operated in a foolproof manner. However, the disclosure does not teach the art of controlling devices connected to the computer. 
     U.S. Pat. No. 4,742,456 shows a microprocessor for deenergizing the air and water pumps for a whirlpool bath to reduce background noise when a voice communication system is activated from the bath. A stereophonic sound system can also be incorporated in the bath tub control circuit in the same manner. A carrier current control responds to the microprocessor by sending control signals from the bath tub control circuit through the household electrical wiring circuit to regulate other functions, of which heat lamp, room illumination and door unlocking are typical. 
     U.S. Pat. No. 4,725,956 discloses an air vehicle control system piloted by remote voice commands. A voice recognizer converts spoken commands into machine compatible control signals which are transmitted to the vehicle. Particular verbal commands are selected for use with said voice recognizer to increase the acceptance probability of the spoken command by the system. 
     U.S. Pat. No. 4,717,364 shows a voice actuated toy robot which receives commands via a radio transmitter and receiver. In response to these commands, it propagates a signal through a CPU. Initially, the toy is programmed by storing records of commands in a memory which is associated with the CPU. Upon further receipt of identical commands, the CPU scans the memory and upon finding a match between a record in the memory and a new command, the CPU activates a switch associated with the record in the memory so as to set the switch. A mechanical interrogator is capable of cyclically interrogating a plurality of switches each of which corresponds to one of the records in the memory. Upon such interrogation, if it is determined a signal is present at one of the switches, the interrogator ceases interrogation and a mechanism is set so as to propagate motion from a motor to an appendage driving wheel or the like of the robot to produce an output in response to the audio command which was received. 
     U.S. Pat. No. 4,797,927 shows a voice recognition system which digitizes sequentially spoken words forming a vocabulary. As each word is spoken during an initializing phase, its digital value forms a score which corresponds directly to an address in memory. During a later voice recognition phase, any word spoken is scored and the word is read from an indirectly addressed memory without the necessity of comparisons with the data stored in each memory location. 
     U.S. Pat. No. 4,797,924 discloses a voice actuated control system for a motor vehicle. A microphone mounted to a vehicle senses user commands as well as other noise in the passenger compartment. Analog electrical signals from the microphone are converted into digital form and compared by a high speed microprocessor with a user profile. A correspondence between the profile and the sensed input causes a control function (e.g., raising or lowering a window) to be performed. A speech synthesizer in the system prompts the user in the event a command in a command sequence is inappropriate. 
     U.S. Pat. No. 4,785,408 discloses a user-application program for computerized telephone ordering. It is generated by a system designer who selects and interconnects pre-defined program modules and subroutines using a graphics terminal. The application program allows TOUCH TONE input data and voice response. The invention describes a Dialog Production System (DPS) for generating application programs for instructing a computer-controlled voice response system to provide computer-controlled voice services. The DPS includes interaction modules, each defining a basic end-user transaction, which can be performed by the system, and methods for specifying module interconnection. Each interaction module controls the intercommunication with other modules and the devices which interface to the system. To design a dialog program to implement the desired voice service, the system designer uses a graphic terminal to select and interconnect the modules that define the sequence of transactions needed. 
     U.S. Pat. No, 4,766,529 and U.S. Pat. No. 4,677,569 relate to a computer controlled by voice input. It has a speech recognition section for converting a key word of a program, which is entered by the voice input and corresponds to a start number, thereby obtaining a digital code. The digital code date, which indicate the key word, select the start number corresponding to the storage content of a table stored in a program memory. The start number data are used to access a start address of the corresponding program, thereby starting and executing the program. Also disclosed is a system wherein when a chosen key of a key input device is operated while a voice operator guidance is generated, a key-in signals is produced to forcibly stop the ongoing guidance. In particular, when a plurality of voice operator guidances are provided, the computer learns the state of the operation by the operator from the manner of the forcible stop, and automatically stops the generation of the voice guidance on a specific item from the next processing. 
     U.S. Pat. No. 4,757,542 shows a speech synthesizer control circuit for use in a vehicle. The circuit includes a number of features which provide cost effectiveness while maintaining speech synthesizer reliability. One feature of the invention is use of a counter circuit interposed between a control circuit and memory where messages are stored. The counter is clocked by the controller to create an address within the memory for a particular message. Other features of the invention include controlling speech volume, chime generation, and voltage protocols in the speech synthesizer control circuit. 
     U.S. Pat. No. 4,713,766 relates to a system for simultaneously coding and decoding a plurality of signals. In a multi-channel system, a transmitting encoder includes an adaptive quantatizer for each channel, an adaptive bit-allocator using an update algorithm common to all channels, and multiplexer which rearranges signals responsive to bit-allocation information which, in turn, is not transmitted. At the receiving decoder, bit-allocation information is recovered by logic using the transmitter update algorithm. Four embodiments are disclosed. 
     U.S. Pat. No. 4,638,451 shows a microprocessor system including a CPU device with on-chip or off-chip memory, and data and control busses for accessing memory and/or peripherals. The peripheral circuitry includes one or more channels for input and/or output if data, wherein various characteristics of the treatment of data in the channel are controlled by the program being executed in the CPU. In one embodiment, analog input and output channels are included, and the A-to-D or D-to-A conversion rates are selected by executing a data output instruction by the CPU. The cut-off points of the filters are likewise selected. The A-to-D converter loads a first-in first-out memory which is read by the CPU in burst when filled. Likewise, the CPU loads digital data to a first-in first-out memory in the output channel, and then the D-to-A converts at its selected rate. 
     U.S. Pat. No. 4,593,403 relates to a speech recognition system for an automotive vehicle which sequentially activates at least one device having plural different operating modes in accordance with a plurality of spoken instructions without repeating the same phrase. To adjust fender mirrors, for instance, first the driver says (delta) Mirror while depressing a recognition switch to stop the moving mirror; second the driver says (delta) Right, horizontally, third the driver says (delta) Stop. The speech recognition system comprises a reset switch, at least one device instruction phrase memory, plural operation-mode instruction phrase memories, and a reference pattern memory selector for selecting the device memory or an appropriate operation-mode memory, in addition to or in place of a section of a conventional speech recognizer. 
     U.S. Pat. No. 4,569,019 relates to programmable I/O (input/output) interface circuitry and provides video and audio signals, needed for a video computer/game, to a commercial color television type display/monitor and may be implemented in HMOS large-scale-integrated circuitry. The system architecture allows for reduced chip count, and improved reliability while providing signals, chrominance phase shift signals, raster control and cursor control video and three independently controlled audio voices. A software selectable keyboard latch input, plural speed processing for faster operation when outside the active display area or during blanking, all system control signals necessary for system operation and three independently controlled interrupt generating timers are also provided. 
     None of these references provide a voice responsive system which promotes learning by highlighting a geographical location and providing information about that location. 
     In particular, the cited references do not teach a system of computer-controlled turning and tilting of a globe to illuminate an area or a spot in response to a vocalized name of a city, which simultaneously prompts a display of graphics and data related to the city or geographical location and a voice synthesizer for reading the data, or a system which also controls the display and selection of slides on a slide projector or the review of portion of a videotape prepared for the location. Also, as far as the inventor is aware, the prior art does not teach the random selection of portions of the presentation for review by mixing the audio presentation and visual display or the remote selection of orderly displays. 
     Accordingly, there is a need for a computer-aided and voice-activated system for visual localization of geographic locations on a globe while reviewing information related to selected localities, whether on a computer monitor or by viewing associated displays. There is also a need for a system which allows hands-free selection of slides, scenes, or video portions during recorded or live presentations. 
     SUMMARY OF THE INVENTION 
     A general object of the present invention is to provide a novel and improved system for highlighting a specified geographical feature on a map display in response to a command. 
     A further object of the present invention is to provide a novel and improved method for highlighting a specified geographical feature on a map display. 
     Another object of the present invention is to provide a geographic learning system that facilitates teaching geography in schools by using graphic displays along with printed and spoken data and information while showing the geographic location of cities/countries on the world globe or other maps. 
     Yet another object of the present invention is to provide a voice-responsive geographical display system which highlights particular areas of interest. 
     A further object of the present invention is to provide an automatic globe which moves and illuminates to highlight a region selected by an operator. 
     It is also an object of the present invention to provide a system which highlights a selected geographic feature on a permanent map surface and also provides additional audio and/or visual information related to the selected geographic feature. 
     Another object of the present invention is to provide a system for presenting multimedia information about a selected geographic feature in response to an operator control input, which in a preferred embodiment may be a voice command. 
     Another object of the present invention is to provide adults with a means to relate geographic locations to other areas in the world on a world globe, associating cities with specific geographic areas such as states, countries, and continents, while providing information of interest which may be educational in nature or directed at promoting special programs. 
     A further object of the present invention is to provide a system for television newscasters to promote the display of maps or scenes by using voice input which is part of the broadcast. 
     A further object of the present invention is to provide a means for display of audio-visual aids. 
     Other objects of the invention will become apparent to those skilled in the art upon review of the specification and drawings in conjunction with the claims. 
     The present invention broadly relates to a computer-aided geographic system which uses an input to prompt specific displays, movements, and outputs to provide appropriate information. Another aspect of the invention uses voice to control the system and a slide projector or selected portions of a videotape. 
     In a preferred embodiment, in response to speaking of the name of the city or geographic location, computerized controls turn and tilt the globe so that a spot light illuminates the area of interest (a country, a state, or a continent). Simultaneously, a set of information is displayed on the computer monitor and narrated by synthesized voice. The graphic displays may includes maps or still pictures. Data displays include geographic, demographic, economic, or other information of interest. Voice prompts may also be used to control slide displays of related scenes. Scenes may be picked from a collection of other slides, and may be used to start a video display of moving scenes related to any given location. 
     The invention provides a system to remedy the embarrassing inability to locate a city on the globe by creating a globe that will respond to speech. For example, if a teacher is using current events to teach students about world affairs, the present invention enhances the lesson considerably by giving the students a clear idea of where Armenia or Azerbaijan are in relation to each other, to Europe, to Asia, and to the world. The same is true for the executive who is listening to the evening news. With this system, the student or the executive could simply say &#34;Armenia&#34; or &#34;Azerbaijan&#34; and the globe spotlights the requested location. Or if a person says &#34;New Orleans&#34;, the globe may first light up North America, then the U.S.A., then Louisiana, and finally New Orleans, to place this city in a global perspective. The system disclosed is a motivating, effective, and efficient instructional tool, useful in schools, homes, and business. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a schematic of the voice-interactive, computer-aided geographic system and its components; 
     FIG. 2 is a schematic drawing of the lighting arrangement according to the present invention; 
     FIG. 3 is an alternative shaded light source for illumination of the geographic region; 
     FIG. 4 is a flow chart of the operation of the preferred embodiment; and 
     FIG. 5 is an illustration of input for construction of a knowledge base and database. 
     FIG. 6 is a block diagram of an exemplary embodiment of the software shown in FIG. 1. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     FIG. 1 is a block schematic diagram showing a preferred arrangement of the geographic system of the present invention. The basic units are a globe 100, an interior combination of light sources 101, two synchronous step motors 102 and 103, globe dials 104 and 105 for longitude and latitude respectively, a microstep drive 106, a power supply 107, a microphone 108, and a microprocessor system 109 with a monitor 110 and keyboard 111. The microprocessor system contains, in addition to internal disk drives, several cards including a voice recognition card 112, a control interface 113, and a voice synthesizer card 114 connected to a loudspeaker 115. The voice recognition and synthesis function of cards 112 and 114 may be performed by one board such as IntroVoice VI (IBM Compatible) or Micro IntroVoice (APPLE Macintosh Compatible) available from Voice Connection, Irvine, Calif. The voice recognition functions of card 112 are performed using software associated with card 112 which can be &#34;trained&#34; to recognize desired patterns and provide a character stream output of the word when it is recognized. 
     Microprocessor system 109 is preferably an IBM Compatible personal computer system having a microprocessor in the Intel 80X86 Series and operating using a Microsoft Windows environment. For example, computers made by Tandy Corporation may be used. 
     To input graphics or text from a book or any prepared printed materials, a scanner 116, such as a Hewlett Packard ScanJet, is used with an interface 117. A video recorder/player 118 and slide projector 119, with a digitizing interface 120 are provided to input still pictures to the microprocessor system 109. 
     To display the screens on a video system, digitizing interface 120 can capture images, either graphics or text, and record the image on video recorder/player 121. Digitizing interface 120 may be a Frame Grabber 324 NC made by RasterOps Corp. A controller 122 is used to select the slide and select the portion of a video tape for display. Also, a computer display can be projected by an overhead projector 123 and a conventional data display screen 124 which displays the computer display output on a projector screen instead of or in addition to the monitor. 
     The data display screen 124 may be a screen made by Computer Accessories or the like; the slide projector 119 may be any carousel projector or may be a portable viewer. Synchronous step motors 102 and 103 may be SLO SYN MDO91FCU9 motors manufactured by the Superior Electric Company. Synchronous step motors 102 and 103 may be obtained, for example, from B &amp; B Motors, Long Island City, N.Y. Step motor 102 rotates the globe according to degrees of longitude as displayed by globe dial 104, and step motor 103 tilts the globe according to degrees of latitude as reflected by dial 105. 
     Globe 100 may be a Scan Globe 2000 Mark III made by Scan Globe A/S of Denmark. Globe 100 acts as a map display means or a permanent display map device. While Globe 100 is preferably a generally spherical map, a flat or otherwise configured map display could also be used within the spirit of the invention. 
     Microstep drive 106 may be an MD-10A microstep drive module with 10 microsecond steps/step, and control interface 113 may be a PCX-2 Intelligent Motion Control Firmware Rev. PC 1.21-2, all available from Oregon Microsystems of Beaverton, Oreg. Power supply 107 may be a 30-volt, 4 amp power supply, such as Model SP-2711 made by Heath Schlumberger. 
     Microphone 108 is preferably a highly direction microphone that incorporates a switch for activating the microphone only when desired, thus preventing unwanted response of the system to ambient noise or conversation. 
     Portable video player 118 may be a Sony Video Walkman, or Sharp or Casio TC/VCR, or the like. 
     Software 125 includes software for controlling the motors and activating video and sound devices in response to a user&#39;s voice commands. Preferably, software 125 comprises the source code included in the software appendix to this specification. 
     The software source code provided in the software appendix is a demonstration program which implements the basic functions of the system as disclosed in the specification. Those skilled in the art will recognize that this program can be readily modified to perform additional desired functions, either using custom software modules or commercially available software products. Those skilled in the art will also recognize that this program may be appropriately modified to work with a variety of types of hardware other than the hardware disclosed herein to perform the same functions. 
     Referring now to the software appendix, five C-language source code modules are provided. The module entitled GAEA.C is the main control program. Module PCXTII.C handles interaction with the motion control board 113. The main program passes desired coordinates to this module to produce rotation of globe 100 and illumination of the desired geographic regions. The module titled SOUND.C provides code for controlling a Tandy Voice Synthesis System. The module titled COMMON.C provides source code for numerous main program functions. Finally, the module titled DEFS.C is a sample database containing the names of states, the latitudes of states, the longitudes of states, text-to-speech synthesis message strings, and message strings for screen display. Conventions are adopted in the system for the assignment of latitudes and longitudes. In the example, north and west are positive, and east and south are negative. However, any desired convention could be adopted. 
     The software in the software appendix, in the preferred embodiment, operates to receive voice input as a data stream from voice recognition card 112. However, another source of instructions could be provided, such as through keyboard input or through activation timed to coincide with a presentation. Upon receiving voice input from voice recognition card 112, the software identifies the word which was spoken and refers to its programmed database DEFS.C to associate the word with a location. The software then actuates the control motors to rotate globe 100 to the desired position to highlight the specified longitude and latitude associated with the specified geographical location through the database. The program also produces a screen display, which in the example is a text display of information from the database. Additional information may be output by the system under program control, such as graphics displays, slides, taped audio or video output, or other information-conveying output. In this way, the designation of a geographical feature of interest by the operator can initiate a brief multimedia presentation on the geographical feature, including the identification of its location on the globe 100, an audio/visual tape presentation, slides, computer/overhead graphics displays, and synthesized voice narration describing the feature of interest. The information displayed in conjunction with highlighting of the geographical feature will be chosen to provide desired additional information relevant to that feature. The sample program provides a voice synthesized output which conveys information from the database on the specified geographical feature. 
     FIG. 6 is a block diagram showing software 125. As shown in FIG. 6, Windows environment 602 permits communication between a plurality of software packages 125 which operate to coordinate system operation. As described previously, software 125 preferably includes control software, such as the five modules disclosed in the software appendix, shown at 604. Software 125 running in the Windows environment may also optionally include an expert shell 606, such as Knowledge-Pro by Knowledge Gardens, Inc., Nassau, N.Y., to program rules for selecting words for operation. For example, the expert system may process the speech input to compensate for mispronunciation or to select the desired function based on syntax analysis. Database management software 608, graphics software 610 such as Splash or Harvard Graphics, and a database 612 containing information of interest may also be associated with the system and actuated to provide a display of information. Also, geography display software packages 614 may be used in conjunction with the system to display maps on-screen. PC Globe or P.C. U.S.A. by PC Globe Inc., Tempe, Ariz. may be used for this purpose. If these optional packages are used, they will be interfaced together through the Windows environment 602. Optionally, the programs could all be controlled by a main program which would selectively spawn the other programs as sub-processes to produce a desired information display at a specified time in response to voice commands. 
     Referring now to FIG. 2, light source 101 may include three light sources: a dim flood light 126, a brighter light bulb 127 shining through a ring-shaped aperture, and a sensor spotlight 128. The flood light 126 is used to uniformly illuminate the globe from inside. The ring light 127 illuminates the area around the location of interest and the spot light illuminates a spot location of interest. Preferably, the ring light 127 is fixedly aimed at a location easily visible to viewers of the globe 100, and the region of interest is rotated into the field of illumination of ring light 127 before activation of ring light 127. 
     However, if desired ring light 127 might have an adjustable position controlled by microprocessor system 109 by means of appropriate positioning motors. Similarly, spotlight 128 may be fixed at a single predetermined location, with globe 100 rotated before activation of spotlight 128 to bring the desired illumination point into the beam of spotlight 128. However, spotlight 128 could also have an adjustable beam aimed under the control of microprocessor system 109 using appropriate control motors. In the preferred embodiment, light source 101 is located inside globe 100, which rotates so that light from floodlight 126, ring light 127, and spotlight 128 can be seen from outside globe 100. However, if desired, light source 101 or any part thereof, might also be located outside globe 100 and be directed onto its outer surface. 
     An example of an adjustable aim light beam system is shown in FIG. 3. In this embodiment, a light bulb 129 is surrounded by a light shade jacket 130 which can be rotated by a control system 131. Jacket 130 rotates under control of control system 131 connected to microprocessor system 109 to align hole 134 with the region to be illuminated. 
     The operation of the preferred embodiment is depicted by the flow chart shown in FIG. 4. The lights identify a location when asked to do so by uttered words (block 200), saying the name of the city in the microphone or inquiring about a location of interest, such as, &#34;What is the capital of Louisiana?&#34; The voice will prompt the voice recognizer which in turn will recognize the word (block 201). The voice input may optionally be processed in block 203 by expert system software to compensate for mispronunciation or to select the desired function based on syntax analysis. When the desired location has been determined, the coordinates are retrieved in block 203 and the software will then actuate the controls in block 205 to rotate the step motors (block 206) relative to an initial set-up position in order to rotate and tilt the globe and allow the lights to illuminate the location/region requested (block 209). Simultaneously, the system may use the identified location as a key word to a database management system or video graphic display package (block 207) to retrieve related graphics and information (block 210). The information will be displayed on the screen (block 211) and the synthesizer will speak the text on the screen (block 212). The system will send a message to the controller of the video player or the slide projector (block 214) to play or project related scenes. The overhead projector display may substitute for the monitor in the operation of block 211. 
     FIG. 5 shows the components of a preferred knowledge base and database 300. Database 300 is constructed using keyboard input 301, which may provide vital statistics, census data, etc. Scanner input 302 from scanner 116 includes maps, topography, and weather information which are stored for display when the applicable region is specified. Narration and information may be provided in the data base by voice input 303 using, for example, microphone 108 and a sound recording means in the system. Pictures can be stored in digital format, using scanner 116 or by using the digitizing interface 120 described previously to capture still pictures from video player 118 or slide projector 119. 
     Another embodiment of the invention is a stand-alone globe 100, constructed by integrating the voice synthesizer and recognizer and the controllers in a microchip to be placed on the base of the globe. Both the microphone and the speaker can be embedded in the base architecture. In this simplified configuration, the system preferably identifies places on the globe and provides verbal information output, but does not provide a multimedia description of the regions highlighted. 
     The stand-alone, voice-activated, and talk-back localizer may be used in unlimited embodiments, including connecting it to a television to display information or playing songs related to given locations. The globe can also be used as a platform for games on cartridges. ##SPC1##