TV broadcast receiver

Details TV broadcast receiver TV broadcast receiver

2007-04-16

2011-10-11

Lee, Michael (Department: 2422)

Television

Receiver circuitry

Tuning

C348S731000, C348S725000, C348S536000, C348S735000, C455S180300

Reexamination Certificate

active

08035755

ABSTRACT:
In the course of the channel presetting process, the central frequency is set by a step of 1 MHz within the range from the minimum frequency in the VHF band channel plan to the maximum frequency of the VHF band adopted in the place of destination for the scheduled shipment of the TV broadcast receivers, attempts are made to detect broadcast signals by changing frequency within a range of 1.5 MHz to the high frequency side and 0.5 MHz to the low frequency side from the central frequency, and the frequencies of the detected broadcast signals are stored in the semiconductor memory.

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patent: 2000-068794 (2000-03-01), None
patent: 3070655 (2000-05-01), None
Japanese Notice of the reason for refusal, dated Apr. 30, 2008.
European Examination report dated Oct. 12, 2010.

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