Transmission and reception of a digital information signal

Details Transmission and reception of a digital information signal Transmission and reception of a digital information signal

1997-07-03

2000-02-29

Chin, Stephen

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

341 50, 341 55, 341 60, 341 95, 341106, 714746, 714752, 714758, H04B 166, H03M 700, H03M 500

Patent

active

060318716

ABSTRACT:
An apparatus for transmitting a digital information signal includes an input terminal for receiving the digital information signal, a first channel encoding unit for carrying out a first channel encoding step on an information word in a series of subsequent information words included in the digital information signal so as to obtain a channel word, a compression unit for carrying out a compression step on a channel word so as to obtain a compressed channel word, an error correction encoding unit for carrying out an error correction encoding of the compressed channel word so as to obtain a parity word, a second channel encoding unit for carrying out a second channel encoding step on the parity word so as to obtain a channel encoded parity word, and a formatting unit for combining the channel word and the channel encoded parity word into a composite transmission signal suitable for transmission via a transmission medium. With such apparatus, very long information words can be converted into channel words, while serious error propagation is avoided during transmission.

REFERENCES:
patent: 5335117 (1994-08-01), Park et al.
patent: 5475388 (1995-12-01), Gormish et al.
patent: 5499254 (1996-03-01), Ikekawa et al.
patent: 5608397 (1997-03-01), Soljanin
patent: 5671236 (1997-09-01), Denissen et al.
patent: 5771244 (1998-06-01), Reed et al.

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