Portable voice system for the verbally handicapped
Patent 4215240 Issued on July 29, 1980. Estimated Expiration Date: 
November 11, 1997. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 11, 1997. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3704345 3794753 Apparatus and method for providing interactive audio communication Adaptive linear prediction speech synthesizer Patent #: 4022974 InventorAssigneeApplicationNo. 05/850669 filed on 11/11/1977US Classes:704/271, Handicap aid340/825.19Communication or control for the handicappedExaminersPrimary: Morrison, Malcolm A.Assistant: Kemeny, E. S. Attorney, Agent or FirmInternational ClassesG10L 13/04 (20060101)G10L 13/00 (20060101) G09B 21/00 (20060101) AbstractA completely self-contained, battery operated, portable voice system for the verbally handicapped which is sufficiently compact to be hand held. The system contains a preestablished vocabulary of words, phonemes, and phrases which are accessible by the non-verbal via a keyboard. The desired message is then phonetically spoken by a speech synthesizer contained in the unit upon the depression of a TALK key. For verbally handicapped persons with minimal motor capabilities, the present invention is adapted to be operable in a scrolling scanning or "scrolling" mode wherein the numerical display is automatically rotated in sequence and the selections entered by activating a sensor switch with a single body function to stop the display at the desired number.Other References
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