Patent ID: 8023914
Filing Date: 2011-09-20
Classification: H04H

Abstract:
1. A method for a broadcasting receiver determining a current region where the broadcasting receiver is located, the broadcasting receiver storing a plurality of candidate regions, each of the plurality of candidate regions comprising a plurality of assigned channels, the method comprising steps of: (a) when the broadcasting receiver is turned on, detecting a signal strength of a current channel assigned in the current region, wherein when the signal strength of the current channel is smaller than a first threshold, performing step(b); (b) detecting a signal strength of a second channel assigned in the current region other than the current channel, wherein when the signal strength of the second channel is smaller than a second threshold, performing step (c); (c) detecting a signal strength of a third channel assigned in one of the candidate regions other than the current region, and determining whether the signal strength of the third channel is smaller than a third threshold, when the signal strength of the third channel is smaller than a third threshold, performing step (d) directly, when the signal strength of the third channel is larger than the third threshold or equal to the third threshold, recording the detected candidate region and then performing step (d); (d) performing step (c) for each of the plurality of candidate regions stored in the broadcasting receiver, until either all the plurality of candidate regions being detected once, or one of the candidate regions is recorded; and (e) when one of the candidate regions is recorded, defining the recorded region as the current region.