Method of scanning channel of digital television

Details Method of scanning channel of digital television Method of scanning channel of digital television

2007-02-13

2007-02-13

Eng, George (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S422100, C455S039000, C455S515000, C455S182300, C455S119000, C348S732000, C348S727000

Reexamination Certificate

active

10898962

ABSTRACT:
A method of scanning channels in a digital television including (a) setting a starting frequency; (b) searching for a first available digital channel by searching a search frequency that is the starting frequency; adding a predetermined scan step to said search frequency if the first available channel is not found at the starting frequency, and adding additional predetermined scan steps to the search frequency until the first available channel is found if the first available channels is not found at the starting frequency plus the scan step; and (c) searching for a second available digital channel by searching at a first main frequency, which is the first available channel frequency plus a first predetermined bandwidth, wherein the step of searching for the second available digital channel includes searching at a plurality of scan steps around the first main frequency.

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