Automated telephone system with TDD capability
Patent 5499285 Issued on March 12, 1996. Estimated Expiration Date: 
September 19, 2014. 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.
September 19, 2014. 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 3153121 3199226 3507997 3896267 Mid-pulse detector System and method for speech recognition Pseudo-transparent stop bit generator Portable telephone communication device for the hearing impaired System for multilingual communication of computer-specified aural or visual control messages in an operator-designated language Interactive telephone answering system InventorAssigneeApplicationNo. 308344 filed on 09/19/1994US Classes:379/52, INCLUDING AID FOR HANDICAPPED USER (E.G., VISUAL, TACTILE, HEARING AID COUPLING)178/2B, Code changers341/91, To or from Baudot code379/88.06, Language selection379/88.1, Including data compression379/88.16, Voice message synthesis379/88.24, By generated tone379/88.25Message storage in centralized location (e.g., central office, PBX, etc.)ExaminersPrimary: Chan, Wing F.Attorney, Agent or FirmForeign Patent References
International ClassH04M 011/00AbstractAn automatic telephone answering system employs a switch activated by any of several techniques to select a language for communication with a caller. A single matrix determines the content of a message to be generated in response to input from the caller. A single matrix can be used because it is arranged in accordance with the content of the various messages and not on the specific language of the messages. All of the messages for each respective language are stored in a separate directory such that a given identifier obtained from the matrix will recall that message in the language determined by identification of the particular directory. A telecommunications device for the deaf (TDD) is treated in the same manner as a language and selection of messages employs the same matrix used for traditional languages. Received TDD signals are converted to ASCII for storage, and messages to be identified by the matrix are stored in ASCII and converted to TDD before transmission.Other References
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