H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
363/16, 344/25
H04Q 11/04 (2006.01) H04M 11/06 (2006.01)
Patent
CA 1255823
TELEPHONE SYSTEM ABSTRACT An information transfer system is described for use in a telephone system wherein full duplex digital signal bursts containing a plurality of different types of information are transmitted between a central office and each of a plurality of subscriber locations, and wherein signals respectively containing the different types of information in a predetermined format are transmitted between the central office and each of a plurality of selected locations which may or may not be subscriber locations. Signal processing circuits receive and disassemble the digital signal bursts into digital information words, each digital information word being comprised of only one of the types of information in the digital signal bursts. The signal processing circuits also assemble digital information words of different types of information into digital signal bursts for transmission to respective subscriber locations. Gateways are provided for each type of information for converting digital information words into a predetermined signal format for transmission to respective selected locations and for receiving signals in a predetermined format from selected locations and converting same into digital information words containing the respective type of information received. A digital switch couples the signal processing circuits to the gateways for routing the digital information words from the signal processing circuits to a respective one of the gateways corresponding to the type of information in the digital information word being routed. The digital switch also routes the digital information words from each of the gateways to the signal processing circuits for assembly into digital signal bursts for a particular subscriber location. A control system is coupled to the signal processing circuits, the gateways, and the digital switch for synchronously operating same and for placing each of the digital information words in a preallocated time slot corresponding to the source and destination of the information contained in the digital information word.
503954
Carse Gregg D.
Daines Bernard N.
Macrae & Co.
Pacific Bell
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