Signal processor for use with a telephone system and digital...

Details Signal processor for use with a telephone system and digital... Signal processor for use with a telephone system and digital...

H - Electricity

04

J

363/12, 379/25

H04J 3/02 (2006.01) H04M 11/06 (2006.01)

Patent

CA 1117674

SIGNAL PROCESSOR FOR USE WITH A TELEPHONE SYSTEM AND A DIGITAL TRANSMISSION SYSTEM Abstract of the Disclosure A system is provided for encoding telephone dialing signals received from a telephone system at a transmitting station, the encoded telephone dialing signals being transmitted using a digital format of a predetermined data rate to a receiving station via telephone trunk lines for decoding and application to a telephone system interconnected to the telephone trunk lines at a receiving station. Circuitry is provided for receiving and storing tone signal telephone dialing signals received from the telephone system at the transmitting station for a predetermined time period. Circuitry is provided for converting at the transmitting station the tone signal telephone dialing signals into digital representations. Circuitry is interconnected to the receiving and storing circuitry and to the telephone trunk lines for selectively clocking the receiving and storing circuitry at the predetermined data rate of the digital format to thereby cause the receiving and storing circuitry to transmit the digital representations to the receiving station. Circuitry is provided for converting at the receiving station the data rate of the digital format of the digital representations received at the receiving station to the original data rate of the tone signal telephone dialing signals for application to the telephone dialing system at the receiving station. A tone generator is provided for generating tone signal telephone dialing signals corres- ponding to the transmitted digitized representations for application to the telephone system at the receiving station.

368332

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