Patent ID: 9356717
Filing Date: 2016-05-31
CPC Classification: H04B,H04H

Claim Text:
1. A device for selecting a channel, comprising: a speed detector configured to detect a speed of a channel selecting mechanism; a controller connected to the speed detector; and a frequency deviation detector connected to the controller and configured to receive an input signal, wherein the controller is configured to select a wideband channel searching mode for the frequency deviation detector if the speed is higher than a speed threshold, or a narrowband channel searching mode if the speed is lower than the speed threshold; the frequency deviation detector is configured to detect an existence of a channel if an actual frequency deviation of the input signal is lower than a first wideband frequency deviation threshold when the wideband channel searching mode is selected, or detect the existence of a channel if the actual frequency deviation is lower than a narrowband frequency deviation threshold when the narrowband channel searching mode is selected.