Emergency telecommunications device for the disabled
First Claim
1. An emergency telecommunication system for the hearing impaired and for the speech impaired comprising:
- means for simultaneously receiving normal voice communications and an incoming signal from any one of TDD, PC/M and telephone devices external to said system in Baudot format, ASCII format and DTMF tones, respectively;
means for continuously searching said receiving means to detect the presence of said incoming signals;
means for sequentially testing said detected signals to identify said respective signal format of said detected signals; and
means for passing a detected Baudot format signal.
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Accused Products
Abstract
An emergency telecommunication system for the hearing or speech impaired includes an interface electrically connecting the emergency system to a telephone communication system, a programmable gate array, a keyboard connected to the programmable gate array, a register connected to the programmable gate array for storing at least one telephone number of the telephone communication system, and a graphic display device connected to the programmable gate array and to the register. The system also includes devices for receiving and transmitting signals in ASCII format, Baudot format, and DTMF signals, and for receiving and transmitting normal voice communications simultaneously with one of the ASCII and Baudot format and DTMF signals. Switches selectively connect each of the receiving and transmitting devices in independent receiving and transmitting modes between the interface and the programmable gate array. A computer connected between the interface and the programmable gate array detects incoming signals to the interface, distinguishes whether the incoming signals are in ASCII format, Baudot format or audio tone and connects the receiving mode of one of the receiving and transmitting devices corresponding to the distinguished signal between the interface and the programmable gate array. The computer further permits variation of the volume of the audio tone signals and display of a visual message corresponding to the incoming signal. At least one outgoing message is transmittable to a telephone number stored in the register.
30 Citations
20 Claims
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1. An emergency telecommunication system for the hearing impaired and for the speech impaired comprising:
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means for simultaneously receiving normal voice communications and an incoming signal from any one of TDD, PC/M and telephone devices external to said system in Baudot format, ASCII format and DTMF tones, respectively; means for continuously searching said receiving means to detect the presence of said incoming signals; means for sequentially testing said detected signals to identify said respective signal format of said detected signals; and means for passing a detected Baudot format signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An emergency telecommunication system for the hearing impaired and for the speech impaired comprising:
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an interface electrically connecting said emergency system to a telephone communication system; a programmable gate array; a keyboard connected to said programmable gate array; a register connected to said programmable gate array for storing at least one telephone number of said telephone communication system; a graphic display device connected to said programmable gate array and to said register; means for receiving and transmitting signals in ASCII format; means for receiving and transmitting signals in Baudot format; means for receiving and transmitting DTMF signals; means for receiving and transmitting normal voice communications simultaneously with one of said ASCII and Baudot format and DTMF signals; means for selectively switching each of said receiving and transmitting means in independent receiving and transmitting modes into and out of connection between said interface and said programmable gate array; and computer means connected between said interface and said programmable gate array for; detecting incoming signals to said interface; distinguishing whether said incoming signals are in ASCII format, Baudot format or audio tone; and connecting said receiving mode of one of said receiving and transmitting means corresponding to said distinguished signal between said interface and said programmable gate array. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method for the hearing impaired and for the speech impaired to transmit and receive emergency telecommunication messages comprising:
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receiving incoming signals from remote devices in normal voice communication and simultaneously in any one of Baudot format, ASCII format and DTMF tones; searching to detect the presence of said received signals; testing said detected signals to identify said respective signal format of said detected signals; passing said detected signal to a corresponding Baudot, ASCII or DTMF tone device; encoding said passed signals in said Baudot and ASCII devices; storing said encoded signals; and graphically displaying said stored signals. - View Dependent Claims (18, 19, 20)
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Specification