Data compression-decompression method and apparatus for synchronous terminal means
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United States of America Patent
Stats
-
Jan 9, 1996
Grant Date -
N/A
app pub date -
Aug 25, 1993
filing date -
Aug 27, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A first frame produced by a first terminal is compressed after suppressing certain of the data fields forming it, then transmitted via a safe link through a transmission network into a second frame. This second frame received by a second terminal via the safe link is unpacked-from the fields relating to this safe link, whereupon the remainder of the frame is decompressed. The data fields suppressed for transmission by the first terminal are restored, either by calculation (for example, in the case of a frame checking sequence), or by insertion of a given word (for example, for each flag between frames). This data compressing and decompressing method is carried out in a data circuit-terminating equipment for a synchronous terminal.
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Cited Art Landscape
Patent Citation Ranking
- 82 Citation Count
- H04B Class
- 97.37 % this patent is cited more than
- 29 Age