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| Number | Title | Issue Date |
| 4567469 | Matrix keyboard In an improved multikey keyboard for inputting data into a computer, wherein pressing a key places in circuit the point of intersection of at least one row conductor and column conductor respectively connected to portions of separate sets of row and colum... | 01/28/1986 |
| 4558315 | Input apparatus and method for controlling the scanning of a multi-cell display An apparatus and method are disclosed for adapting a multi-mode scanning technique employed to optically scan the display panel of a scanned display device to provide for the time required by the user to adjust to a change in scanning mode. Each scanning ... | 12/10/1985 |
| 4443789 | Keyboard Disclosed herein is an electrical keyboard having five keys arranged conveniently for the fingers of an operators hand, a memory to store the signals from each key, logic circuit to instruct said stored data after release of the last of said keys and an e... | 04/17/1984 |
| 4408192 | Method and device for use by disabled persons in communicating A method and device for use by disabled persons in communicating includes sensors (1) for producing first, second, and third time indeterminate electrical signals responsive to different voluntary muscle movements of the disabled person. Three different m... | 10/04/1983 |
| 4406998 | Non-verbal communication device A device for facilitating non-verbal communications between individuals. The device includes a two-sided panel containing a plurality of message blocks which are selectively illuminated by the individuals in a variety of modes. In a first mode, the messag... | 09/27/1983 |
| 4378553 | Data input system using a split keyboard An electromechanical interactive terminal system is disclosed, utilizing a split keyboard to accommodate convenient use, even by disabled or infirm persons. The elements of a conventional typewriter (or console) keyboard are provided in two separate and d... | 03/29/1983 |
| 4323829 | Capacitive sensor control system An electronic control system for controlling the operation of electromotive apparatus utilizes a capacitive sensor for sensing human touch and producing a command signal whose magnitude corresponds to the contact area of the contact. The sensor command si... | 04/06/1982 |
| 4293855 | Communication device A communication device is disclosed. The device comprises keyboard means having a plurality of keys. The keys are operable to enable the user to create a message to be communicated, or to select one of a plurality of predetermined messages to be communica... | 10/06/1981 |
| 4274753 | Non-oral communication device A non-oral communication device is disclosed. The device includes a single electrical switch actuable by an operator and movable between a first and second position. A memory stores a plurality of messages at a plurality of locations indexed by plural dig... | 06/23/1981 |
| 4191481 | Analogical control device for a typewriting machine to be used by handicapped persons The invention relates to an analogical control of a typewriting machine, for use by handicapped persons which comprises a linear display comprising as many positions as there are characters or functions to be printed or controlled, each character or funct... | 03/04/1980 |
| 4121488 | Step-on type tone scale play device A step-on type tone scale play device has a flexible mat within which is arranged a plurality of flexible switch elements in accordance with a tone scale and is adapted to produce corresponding music sounds when marks configured on the surface of a mat to... | 10/24/1978 |
| 4081623 | Sight operated telephone and machine controller A machine and telephone controller for complex machine functions which is operated by simply looking at it and winking the eye in a preset code. Photocell and electronic logic circuitry stop a sequencing digital display at the desired numerals and activat... | 03/28/1978 |
| 4075621 | Hand held communication aid for the dumb A hand held communication aid for the dumb includes a casing, containing a keyboard, which is easily held in one hand and the keyboard positioned to be operated by the other hand of the user or "speaker". The end of the casing has a visual light emitting ... | 02/21/1978 |
| 4074444 | Method and apparatus for communicating with people A method and apparatus for communicating with people who are both deaf and blind is disclosed. The apparatus comprises a keyboard controlled electromechanical hand. The electromechanical hand is programmed to form the letters of the standard one-hand manu... | 02/21/1978 |
| 4048439 | Control device of a teletypewriter to be used by invalids This invention relates to a control device of a teletypewriter to be used by invalids, which comprises at least one control member, a synoptical board and at least one electronic part, said synoptical board comprising at least one line or column, where al... | 09/13/1977 |
| 4037200 | Braille display switching matrix and circuit utilizing the same A switching matrix adapted to interface blind persons with electronic signals of the type used to drive a visual digital display device is disclosed. The matrix includes at least one series of raised electrically conductive terminals grouped into sets of ... | 07/19/1977 |
| 4014016 | Audio indicating system A sightless indicating system and method is disclosed that is useful as an indicating device for diverse equipment, including equipment such as an electronic calculator, and is particularly useful by a blind person. When utilized as a part of an electroni... | 03/22/1977 |
| 3986030 | Eye-motion operable keyboard-accessory An eye-motion operable keyboard-accessory includes light source means for directing a light ray at an eye of an operator, for obtaining a light reflection therefrom, and a plurality of light-responsive sensors selectively actuable by the operator-reflecte... | 10/12/1976 |
| 3982236 | Communications and control method and apparatus for persons who may have muscular incoordination and/or spasticity A system for use by persons who may have muscular incoordination and/or spasticity or the like is provided with means for controlling the disabling of a function producing means depending upon the person's motor capability. A disabling circuit is responsi... | 09/21/1976 |
