Communication system

Details Communication system Communication system

2011-05-10

2011-05-10

Tran, Khai (Department: 2611)

Pulse or digital communications

Receivers

C375S259000

Reexamination Certificate

active

07940860

ABSTRACT:
A communication system capable of communicating control information without decreasing the bandwidth available to users. A coder encodes a primary signal to generate encoded data such that the polarity of the encoded data alternates between positive and negative polarities. A polarity-reversed data generator reverses the polarity of part of the encoded data to generate polarity-reversed data. A transmitter transmits, as communication data, the encoded data including the polarity-reversed data. A receiver receives the communication data, and a polarity-reversed data detector determines whether or not the polarity of the received communication data alternates between positive and negative polarities, and detects, as the polarity-reversed data, data of which the polarity differs from an expected polarity. A polarity recognizer recognizes the polarity of the polarity-reversed data and treats the recognized polarity as control information.

REFERENCES:
patent: 5438594 (1995-08-01), Podolak
patent: 5995465 (1999-11-01), Hayashi et al.
patent: 7692615 (2010-04-01), Morita
patent: 57-160239 (1982-10-01), None
patent: 58-042344 (1983-03-01), None
patent: 3-109823 (1991-05-01), None
Patent Abstract of Japan, Japanese Publication No. 2002-217738, Published Aug. 2, 2002.
Patent Abstract of Japan, Japanese Publication No. 06-021989, Published Jan. 28, 1994.
“Japanese Office Action”, mailed by JPO and corresponding to Japanese application No. 2006-221347 on Sep. 7, 2010, with partial English translation.

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