Television – Receiver circuitry – Demodulator
Patent
1995-07-12
1998-02-10
Burgess, Glenton B.
Television
Receiver circuitry
Demodulator
348558, 348555, 375260, 375265, 375340, H04N 968
Patent
active
057174717
ABSTRACT:
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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Burgess Glenton B.
Burke Alexander J.
Kurdyla Ronald H.
Thomson Consumer Electronics Inc.
Tripoli Joseph S.
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