Integrated communications system for hdlc variable-length...

Details Integrated communications system for hdlc variable-length... Integrated communications system for hdlc variable-length...

H - Electricity

04

Q

344/25

H04Q 11/04 (2006.01) H04J 3/16 (2006.01) H04J 3/24 (2006.01) H04N 7/26 (2006.01) H04N 7/60 (2006.01) H04N 7/62 (2006.01)

Patent

CA 2009237

- 17 - ABSTRACT OF THE DISCLOSURE In an integrated communications system, HDLC variable-length packets and non-HDLC fixed-length packets are decomposed into cells and a cell identifier is generated for each of the cells for identifying its type. A frame sync code is transmitted from one end of a transmission channel, and the cell identifier and each of the cells are assembled into a field and a plurality of such fields are assembled into a frame for transmission. The frame sync code is detected at the other end of the transmission channel as a timing reference and the frame is deassembled into fields in response to the timing reference and each field is deassembled into a cell identifier and a cell. According to each deassembled cell identifier, the cells of each field are composed into the original HDLC variable-length packet or non-HDLC fixed-length packet.

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