Patent ID: 7830458
Filing Date: 2010-11-09
Classification: H04N

Abstract:
1. A method for scanning a single video carrier channel of a television, the television (TV) including a memory storing a plurality of central frequencies of channels, the method comprising the steps of: (A) entering a channel; (B) providing a frequency correction, which is set to zero in initialization; (C) reading a central frequency of the channel from the memory as a target frequency of the channel; (D) determining if a TV channel exists at the target frequency; if the TV channel exists, recording the target frequency as a frequency of the channel, and otherwise executing step (E); (E) adding a predetermined frequency difference to the frequency correction to thereby obtain an updated frequency correction; and (F) when the updated frequency correction is not greater than a predetermined frequency bound, setting the target frequency to a value of the central frequency plus or minus the updated frequency correction and executing step (D).