Network for transmitting information data without error correcti

Details Network for transmitting information data without error correcti Network for transmitting information data without error correcti

1996-02-15

1998-11-10

Elmore, Reba I.

Excavating

371 35, G08C 2502, H03M 1300

Patent

active

058355081

ABSTRACT:
In order to transmit information data from a station to another station through a transmission channel, only the information data (a.sub.31 to a.sub.00, b.sub.31 to b.sub.00, etc) are transmitted when the channel has a good channel quality. When the channel quality is bad, error correction code words are composed for transmission by adding redundancy bits (A.sub.15 to A.sub.00, B.sub.15 to B.sub.00, etc) to the information data. When the channel quality is bad even with transmission of the code words, error correction code blocks are composed by interleaving information bits (a's, b's, etc) and the redundancy bits in a selected number of code words with the selected number increased from two depending on the channel quality. Alternatively, such data, words, or blocks are transmitted with a transmission rate adjusted.

REFERENCES:
patent: 4110558 (1978-08-01), Kageyama et al.
patent: 4138678 (1979-02-01), Kirner
patent: 4584685 (1986-04-01), Gajjar
patent: 4716573 (1987-12-01), Bergstrom et al.
patent: 4967413 (1990-10-01), Otani
patent: 5001776 (1991-03-01), Clark
patent: 5371737 (1994-12-01), Nelson et al.
patent: 5430743 (1995-07-01), Marturano et al.
patent: 5477550 (1995-12-01), Crisler et al.
Lin et al; Error Control Coding, Fundamentals and Applications; Prentice-Hall, Inc.; pp. 271, 272, 441, 442, Jan. 1983.

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