发明名称 |
APPARATUS FOR DEMODULATING AND DECODING SATELLITE, TERRESTRIAL, AND CABLE TRANSMITTED DIGITAL TELEVISION DATA |
摘要 |
A Digital signal processor selectively demodulates and decodes signals received from multiple types of transmission channels such as satellite, terrestrial and cable transmission channels. A received signal is representative of compressed digital video information such as television picture information, and is encoded in one of a plurality of coding formats (e.g., trellis or punctured codes of selectable code rate). The received signal is also modulated in one of a plurality of modulation formats (e.g., PAM, QAM or PSK). A demodulator selectively demodulates the signal modulated in one of the plurality of modulation formats, and a decoder selectively decodes the demodulated signal coded in one of the plurality of coding formats.
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申请公布号 |
CA2310183(C) |
申请公布日期 |
2001.05.22 |
申请号 |
CA19952310183 |
申请日期 |
1995.10.26 |
申请人 |
THOMSON CONSUMER ELECTRONICS, INC. |
发明人 |
STEWART, JOHN SIDNEY;RAMASWAMY, KUMAR |
分类号 |
H03M13/23;H03M13/41;H04L27/00;H04L27/38;H04N5/44;H04N5/455;H04N5/46;H04N7/24;(IPC1-7):H04N5/46 |
主分类号 |
H03M13/23 |
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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