BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control search device for identifying a remote control transmitter in a remote control device such as a VCR or a TV receiver. And a method for judging applause and applause.;In the conventional remote control search device, an RF transmitter must be provided on the main body side of the device (VCR, TV), and an RF amplifier 4 for amplifying a weak RF signal transmitted and received wirelessly is indispensably required on the remote control side. In order to search for a remote control, it is necessary to move to a position close to the device and operate a remote control search switch (usually, an operation switch of the oscillator 1) so that the RF transmitter must be configured on the device main body side. There is a problem in that it is subject to spatial constraints caused by RF signal transmission distance and radio wave obstacle.;The present invention can extend the life of the remote control battery by eliminating the RF reception amplification stage and reducing the power consumed by the remote control search circuit by generating the position response sound of the remote control transmitter to the applause sound of the audible frequency band. It is possible to overcome all obstacles and respond to the applause to eliminate the necessity of constructing the transmitter separately on the main body side of the apparatus so that the user can find the remote control with applause while wandering over a wide area, And it is a remote control search device and an applause sound judgment method using an applause sound so as to exclude false responses to signals other than the applause sound by discriminating the applause sound through frequency spectrum analysis.
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