Communication method and apparatus using data compression
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United States of America Patent
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Mar 20, 2001
Grant Date -
N/A
app pub date -
Feb 27, 1998
filing date -
Jun 16, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A communications link for data communication via satellite includes interface apparatus comprising a satellite link interface for connection to a satellite link and a PSTN interface for connection to a PSTN. The interface apparatus supports different data compression modes in the communication link. Mode A allows data compression over the PSTN but not over the satellite link. Mode B allows data compression over the PSTN and over the satellite link, but enables decompression and recompression of data flowing in each direction through the interface apparatus. Mode C allows compressed data to pass transparently between the PSTN and the satellite link, while the interface apparatus performs error correction on the satellite link and on the PSTN.
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