| Patents for G09B 5 - Electrically-operated educational appliances (14,377) |
|---|
| 06/27/1991 | WO1991007715A3 Data entry book with sheet identification |
| 06/26/1991 | CN2079782U Radio-recorder with image |
| 06/25/1991 | US5026288 Illuminated educational blocks |
| 06/18/1991 | CA1285076C Interactive video composition and presentation systems |
| 06/12/1991 | EP0432056A1 Character information display system of cassette player and a method thereof |
| 06/12/1991 | EP0431061A1 Training method and apparatus with audio and digital signals recording and play back |
| 06/12/1991 | CN2078906U 语言磁带编辑装置 Language tape editing equipment |
| 06/11/1991 | US5023727 Method and device for producing a substantially continuous composite video signal |
| 06/05/1991 | EP0429971A2 Method and apparatus to produce subliminal sound recording |
| 06/05/1991 | CN2078471U Language learning machine with synchronous display of sound and picture |
| 06/05/1991 | CN2078470U Portable equipment for studying language |
| 05/28/1991 | US5019679 Flat switch insertable into a magazine and usable as part of a survey technique for readership of publications |
| 05/14/1991 | WO1991007715A2 Data entry book with sheet identification |
| 05/14/1991 | CA2068409A1 Data entry book with sheet identification |
| 05/14/1991 | CA1284211C Cable television system selectively distributing pre-recorder video and audio messages |
| 05/02/1991 | WO1991006090A1 Interactive audio visual work |
| 05/01/1991 | WO1991007052A1 Method and apparatus for producing customized video recordings |
| 05/01/1991 | CN2076258U Sound reading material and phenetic pencil thereof |
| 04/30/1991 | US5011414 Key-input apparatus or CAI system |
| 04/30/1991 | US5011156 Board game apparatus |
| 04/24/1991 | CN2075805U 电子语言训练机 Electronic language training machine |
| 04/23/1991 | US5010495 Interactive language learning system |
| 04/17/1991 | CN1050784A Visible pronunciation-learning system |
| 04/16/1991 | US5008871 Dictate/transcribe control for digital dictation system |
| 04/16/1991 | CA1283202C Interactive television system for providing full motion synched compatible audio/visual displays from transmitted television signals |
| 04/16/1991 | CA1282954C Speech synchronized animation |
| 04/13/1991 | WO1991006167A1 Method and device for producing a substantially continuous composite video signal |
| 03/28/1991 | DE3931241A1 Foreign language dictionary - includes bar-codes corresp. to required word and bar-code reader pen to provide pronunciation aid via electronic unit |
| 03/27/1991 | CN2074036U Multifunctional card study machine |
| 03/27/1991 | CN1050278A Sound production device for questions of calculation with an obacus |
| 03/26/1991 | US5002491 Electronic classroom system enabling interactive self-paced learning |
| 03/21/1991 | WO1991003764A1 Transparent calculator for overhead projection |
| 03/21/1991 | WO1989012882A3 A process for generating random programs by multiple choice |
| 03/20/1991 | CN1050103A Audio-video card and synchronous audio-vidio learning aid |
| 03/19/1991 | US5001696 Method of preparing an image access card |
| 03/07/1991 | WO1991003112A1 Program transmission optimisation |
| 03/05/1991 | US4997374 Teaching device |
| 03/01/1991 | CA2023562A1 Transparent calculator for overhead projection |
| 02/27/1991 | EP0414397A2 Teaching apparatus |
| 02/26/1991 | US4996642 System and method for recommending items |
| 02/19/1991 | US4994987 Image access system providing easier access to images |
| 02/13/1991 | EP0412354A2 Interactive video system |
| 02/13/1991 | CN1049238A Multi-functional film and sound synchronous record displaying system |
| 02/12/1991 | US4992886 Method and apparatus for encoding data within the subcode channel of a compact disc or laser disc |
| 02/05/1991 | US4990092 Talking book |
| 01/15/1991 | US4985697 Electronic book educational publishing method using buried reference materials and alternate learning levels |
| 01/10/1991 | WO1991000582A1 Comparative evaluation system for improving the pronunciation |
| 01/08/1991 | CA1278866C Computerized academic quiz controller system |
| 01/02/1991 | CN2068709U Program control telegraph operator training apparatus |
| 01/02/1991 | CN1048281A Information storage media having information stored thereon for playback at different speeds and method of indexing such stored information |
| 12/27/1990 | WO1990016054A1 A presentation method |
| 12/25/1990 | US4980919 Message card type of language practising set for children |
| 12/19/1990 | EP0403118A2 Audio/visual compilation in a data processing system |
| 12/19/1990 | CN1047810A Position-sensitive educational product |
| 12/18/1990 | US4979026 Polarized light 360 degree viewing system |
| 12/18/1990 | US4978302 Computer program for teaching land mass recognition |
| 12/13/1990 | WO1990015410A1 Information storage media having information stored thereon for playback at different speeds and method of indexing such stored information |
| 12/13/1990 | WO1990015402A1 A toy or educational device |
| 12/13/1990 | DE3918752A1 User program learning support for computer system - storing speech associated with program steps. as well as visual guidance |
| 12/11/1990 | CA1277494C Sound-producing amusement devices |
| 12/05/1990 | EP0400682A2 Language laboratory systems |
| 12/05/1990 | CN2067009U Sound loose-leaf studying device |
| 12/04/1990 | CA1277134C Monitoring apparatus for training devices |
| 11/29/1990 | WO1990014651A1 Dental hygiene instruction display |
| 11/28/1990 | EP0399667A2 Electronic classroom system enabling self-paced learning |
| 11/27/1990 | US4973254 Educational apparatus |
| 11/20/1990 | US4972496 Handwritten keyboardless entry computer system |
| 11/06/1990 | US4969194 Apparatus for drilling pronunciation |
| 11/06/1990 | US4968257 Computer-based teaching apparatus |
| 11/06/1990 | US4968254 System for synchronizing the output signals from multiple media |
| 10/31/1990 | EP0191829B1 Method for editing video still pictures |
| 10/31/1990 | EP0191822B1 Interactive video and audio controller |
| 10/31/1990 | CN2064915U Teaching projection machine with plastic picture band |
| 10/30/1990 | US4967354 Method of preparing customized written examinations |
| 10/24/1990 | EP0178315B1 Installation for studying by the superlearning method |
| 10/23/1990 | US4964656 Telephone marketing device |
| 10/16/1990 | US4964167 Apparatus for generating synthesized voice from text |
| 10/16/1990 | US4963097 Display apparatus for a group education system |
| 10/04/1990 | WO1990011587A1 Compiling system and method of producing individually customized recording media |
| 10/03/1990 | EP0390611A2 Electronic book |
| 10/03/1990 | EP0389689A1 Method for transmitting a transmission signal and a transmitting device and a receiving device for use in the method |
| 09/26/1990 | EP0389261A2 Compact-type device for reproducing data |
| 09/26/1990 | CN2062885U Picture teaching aids with sound |
| 09/25/1990 | US4959734 Prestored response processing system for branching control of interactive video disc systems |
| 09/20/1990 | WO1990010995A1 Solid state 360 degree viewing system |
| 09/19/1990 | CN2062477U Repeatedly circulating play and phonetics speed adjustable study machine |
| 09/12/1990 | CN2062095U Multi-function recorder language learning device |
| 09/05/1990 | CN2061718U Speech sound recording or playing apparatus with microprocessor |
| 09/05/1990 | CN2061717U Computerized speak and sing teaching appliance |
| 09/05/1990 | CN1045194A Electronic language exerciser |
| 09/04/1990 | CA1273487A1 Multi-mode teaching simulator |
| 08/22/1990 | EP0383304A2 Coordinate input apparatus |
| 08/22/1990 | CN2060924U Circulating card memorizing machines with the feature of digital display and countdown timing |
| 08/16/1990 | EP0382021A2 Position-sensitive educational product |
| 08/10/1990 | CA2008423A1 Position-sensitive educational product |
| 08/09/1990 | WO1990009020A1 Interactive language learning system |
| 08/07/1990 | US4947474 Mechanism of observation and recording operation on an object |
| 08/07/1990 | US4946391 Electronic arithmetic learning aid with synthetic speech |
| 08/01/1990 | EP0379528A1 Voice-training arrangement |
| 07/26/1990 | WO1990008359A1 Interactive video control system |