無線機および無線機の動作クロック周波数制御方法

Abstract

<P>PROBLEM TO BE SOLVED: To avoid a situation where a beat interference is mistaken for a valid radio signal. <P>SOLUTION: A radio device 100 comprises: a detection part 118 detecting a reception signal in any frequency to generate detection signals; a noise HPF 132 extracting a squelch noise not less than a prescribed frequency in the detection signals; a noise determination part 140 determining whether a voltage of the squelch noise is not less than a prescribed threshold value; a switch 142 suppressing the detection signal if the voltage of the squelch noise is determined to be not less than the prescribed threshold value; and a CPU 200a changing the operating clock frequency of the radio device if the voltage of the squelch noise is determined to be less than the prescribed threshold value, wherein the noise determination part determines whether the voltage of the squelch noise extracted newly by a noise extraction part is not less than the prescribed threshold value, when a frequency control part changes the operation clock frequency. <P>COPYRIGHT: (C)2012,JPO&amp;INPIT

Claims

Description

Topics

Download Full PDF Version (Non-Commercial Use)

Patent Citations (0)

    Publication numberPublication dateAssigneeTitle

NO-Patent Citations (0)

    Title

Cited By (0)

    Publication numberPublication dateAssigneeTitle