| Patents for G09B 21 - Teaching, or communicating with, the blind, deaf or mute (3,530) |
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| 06/06/1989 | US4836670 Eye movement detector |
| 05/16/1989 | US4830007 Fetus learning system |
| 05/10/1989 | EP0314780A1 The information station |
| 04/25/1989 | US4823795 Signal processor for and an auditory prosthesis having spectral to temporal transformation |
| 04/20/1989 | WO1989003569A1 Hand-held finger movement actuated communication devices and systems employing such devices |
| 04/13/1989 | DE3733612A1 Method for interactive work with Braille displays |
| 04/11/1989 | US4819647 Intracochlear electrode array |
| 03/21/1989 | US4813419 Method and apparatus for communicating information representative of sound waves to the deaf |
| 03/21/1989 | US4813417 Signal processor for and an auditory prosthesis utilizing channel dominance |
| 03/21/1989 | CA1251534A1 Hand-held communication device and system employing such devices |
| 03/14/1989 | US4812746 Method of using a waveform to sound pattern converter |
| 03/02/1989 | DE3727944A1 Reading device for the blind with a mechanical screen |
| 03/01/1989 | EP0304419A1 Automatic orientation device for walkers and the blind. |
| 02/28/1989 | US4809329 Apparatus for use in conjunction with lipreading by the profoundly deaf |
| 02/07/1989 | US4803732 Hearing aid amplification method and apparatus |
| 02/07/1989 | US4802756 Low vision apparatus and device and method for enabling the visually handicapped to view television |
| 01/24/1989 | US4799889 Stuffed bear as teaching aid |
| 01/12/1989 | WO1989000324A1 Speech aid system |
| 01/03/1989 | US4795348 Communication aid method and apparatus for the handicapped |
| 12/27/1988 | US4793812 Hand held optical scanner for omni-font character recognition |
| 12/22/1988 | DE3719490A1 Method and arrangement for the wireless transmission of information |
| 12/21/1988 | EP0295532A2 Device for outputting characters and symbols by electric current stimulation pulses |
| 12/20/1988 | CA1246864A1 Braille print board |
| 12/01/1988 | WO1988009540A1 The information station |
| 11/23/1988 | EP0292053A1 Electronic voting machine |
| 11/15/1988 | US4785420 Audio/telephone communication system for verbally handicapped |
| 11/09/1988 | EP0225395B1 Device for presenting graphic information |
| 11/03/1988 | DE3807064A1 Braille script output device for computers |
| 11/02/1988 | EP0289154A2 Tactile code for the visually impaired and blind |
| 10/27/1988 | DE3711582A1 Method of control input, computer processing and display |
| 10/26/1988 | EP0288169A2 Control system |
| 10/11/1988 | US4776797 Coin cue device and method for aiding the handicapped |
| 09/28/1988 | EP0284113A1 Work station comprising a braille reading line |
| 09/27/1988 | CA1242405A1 Apparatus for performing raised dot formations |
| 09/20/1988 | US4772205 Tactile braille or graphic display |
| 09/14/1988 | EP0282336A2 Signal processor and an auditory prosthesis utilizing channel dominance |
| 09/14/1988 | EP0282335A2 Signal processor for and an auditory prosthesis having spectral to temporal transformation |
| 09/14/1988 | EP0281746A1 Electromechanical braille cell |
| 09/06/1988 | US4768926 Remote control fan |
| 08/31/1988 | EP0280608A1 Device for displaying relief symbols, in particular Braille characters |
| 08/24/1988 | EP0278989A1 Device to enable the handicapped to express themselves using individually chosen symbols |
| 08/17/1988 | EP0278916A2 Device for indicating the actuation of a key in electronic keyboards |
| 08/09/1988 | US4762229 Method and apparatus for orienting or labeling a beverage dispensing container responsive to tactile stimuli |
| 08/02/1988 | US4761770 Method of detecting the position of objects |
| 08/02/1988 | US4761633 For a patient |
| 08/02/1988 | CA1240028A1 Hearing aid amplification method and apparatus |
| 07/26/1988 | CA1239705A1 Multi-image communications system |
| 07/19/1988 | US4758165 Tactile relief display device and method for manufacture it |
| 07/06/1988 | CN87210648U Electronic calculator for blind person |
| 06/22/1988 | EP0271539A1 Mass production auditory canal hearing aid. |
| 06/22/1988 | EP0271499A1 Audio-tactile pedestrian push button signalling system |
| 06/21/1988 | US4752772 Key-embedded Braille display system |
| 06/14/1988 | CA1237941A1 Representation of color for blind persons |
| 05/11/1988 | EP0266364A1 Process and system for cable-free transmission of data |
| 05/04/1988 | CN87210649U Multiple purpose braille character inserting frame |
| 04/27/1988 | EP0265011A1 Inputting device with tactile feedback |
| 04/12/1988 | US4737108 Tactile code for the visually impaired and blind |
| 03/29/1988 | US4733864 Parlor game |
| 03/15/1988 | US4731603 Tactile alarm system for gaining the attention of an individual |
| 03/01/1988 | US4728934 Tactile stimulation device for hearing-impaired individuals |
| 02/24/1988 | EP0256016A1 Device for sending and receiving a message. |
| 02/24/1988 | EP0105353B1 Speech simulation system and method |
| 01/27/1988 | EP0254554A1 Tactile display apparatus for optical image pattern |
| 01/27/1988 | EP0254015A1 Type slug guided digital input of alphanumerical and/or special symbols in data processing systems |
| 01/12/1988 | CA1231308A1 Waveform to sound pattern converter |
| 12/23/1987 | EP0249920A1 Communication device for the blind |
| 12/15/1987 | US4713495 Device for sending and receiving a message |
| 12/15/1987 | CA1230260A1 Braille display |
| 12/15/1987 | CA1230259A1 Device for forming tactile display |
| 12/09/1987 | CN85205455U Composite conversation aid for a dumb person |
| 12/03/1987 | WO1987007465A1 Mass production auditory canal hearing aid |
| 12/03/1987 | WO1987007221A1 Print type with raised characters, as well as a method and print dye to produce print type |
| 11/24/1987 | US4708657 Audio-frequency converter apparatus, for treating subjects suffering from audio-phonatory and auditive-verbal disorders, and a method of using the apparatus |
| 11/19/1987 | WO1987007012A1 Automatic orientation device for walkers and the blind |
| 11/19/1987 | DE3616186A1 Guiding system for the blind |
| 11/11/1987 | EP0244793A1 Tactile dot writing or image display |
| 11/05/1987 | WO1987006751A1 Audio-tactile pedestrian push button signalling system |
| 09/24/1987 | WO1987005735A1 Process and system for cable-free transmission of data |
| 09/24/1987 | DE3609197A1 Method and arrangement for the wireless transmission of information |
| 09/24/1987 | DE3600159A1 Alphanumeric blind data entry system |
| 09/22/1987 | US4695975 For translating a natural language into visual images |
| 09/16/1987 | EP0237090A1 Tactile relief display device and method for manufacturing it |
| 09/16/1987 | EP0236631A1 Information reproducing apparatus |
| 09/15/1987 | US4694494 Electronic memory devices for the blind |
| 09/09/1987 | EP0235460A1 A blind person transformer of vision to sound |
| 08/20/1987 | DE3604609A1 Information carrier and information and reference point |
| 08/18/1987 | US4687444 Braille reading system |
| 08/18/1987 | US4686765 Method for making an intracochlear electrode array |
| 08/11/1987 | US4685448 For use in the treatment of speech or hearing abnormalities |
| 07/14/1987 | US4679342 Means for rendering controls tactually-sensitive |
| 07/07/1987 | US4679030 Chording keyboard for generating binary data |
| 06/24/1987 | EP0226333A1 Vocal tactile feedback apparatus |
| 06/19/1987 | DE3544243A1 Alphanumeric data blind-input system for computers |
| 06/16/1987 | US4674112 Character pattern recognition and communications apparatus |
| 06/16/1987 | EP0225395A1 Device for presenting graphic information |
| 06/09/1987 | CA1222825A1 Electrotactile vocoder |
| 06/03/1987 | EP0224187A2 Information collecting system for a data processing installation |
| 05/27/1987 | DE3537366A1 Method for recognising the finger position in tactile reading on a Braille display |
| 05/26/1987 | US4668935 Visual alarm reliability assurance system |
| 05/12/1987 | US4664632 Tactile reading device |