发明名称 |
COMMUNICATION METHOD AND APPARATUS USING DATA COMPRESSION |
摘要 |
A communications link for data communication via satellite includes interface apparatus (12) comprising a satellite link interface (20) for connection to a satellite link and a PSTN interface (22) for connection to a PSTN (14). The interface apparatus (12) supports different data compression modes in the communications link. Mode A allows data compression over the PSTN (14) but not over the satellite link. Mode B allows data compression over the PSTN (14) and over the satellite link, but enables decompression and recompression of data flowing in each direction through the interface apparatus (12). Mode C allows compressed data to pass transparently between the PSTN (14) and the satellite link, while the interface apparatus performs error correction on the satellite link and on the PSTN (14).
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申请公布号 |
CA2224711(A1) |
申请公布日期 |
1997.01.03 |
申请号 |
CA19962224711 |
申请日期 |
1996.06.14 |
申请人 |
INTERNATIONAL MOBILE SATELLITE ORGANIZATION |
发明人 |
OBRADORS, JOAN;REMAEL, FRANCOIS-ARNAUD;FELDMAN, HOWARD RAY |
分类号 |
H04L29/06;H04B7/15;H04B7/185;H04L29/08;H04M7/00;(IPC1-7):H04B7/005 |
主分类号 |
H04L29/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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