Television – Receiver circuitry – Demodulator
Reexamination Certificate
2007-06-12
2007-06-12
Tran, Trang U. (Department: 2622)
Television
Receiver circuitry
Demodulator
C348S725000, C348S731000, C375S324000, C375S326000
Reexamination Certificate
active
10511645
ABSTRACT:
Channel acquisition in a digital television signal receiver is improved by determining the carrier tracking loop frequency offsets and the symbol timing recovery offsets for each channel in the television receiver. Offsets are stored in respective EEPROMs for each channel. When a channel is to be acquired in the TV receiver the tune command will be applied to the appropriate EEPROMs and the respective values are conveyed to the VSB demodulator to start acquisition of the channel.
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patent: 5870438 (1999-02-01), Olafsson
patent: 6133964 (2000-10-01), Han
patent: 6226323 (2001-05-01), Tan et al.
patent: 6298100 (2001-10-01), Bouillet
patent: 6317162 (2001-11-01), Matsumoto
patent: 6359944 (2002-03-01), Curtis, III et al.
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Search Report Dated Oct. 9, 2003.
Bouillet Aaron Reel
Liu Weixiao
Mayer Matthew Thomas
Kurdyla Ronald H.
Laks Joseph J.
Thomson Licensing
Tran Trang U.
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