广播接收装置以及广播接收装置的噪声有无判断方法制造方法及图纸

本发明专利技术旨在提供一种广播接收装置，能够高精度地判断与接收环境对应的广播信号的噪声有无。本发明专利技术是具有对由接收到来的广播电波的接收天线接收的广播电波的IF信号进行AM检波并取得AM检波信号的AM检波部(31)和检测AM检波信号的噪声分量的AM噪声检测部(32)的广播接收装置(1)，具有：对IF信号进行FM检波并取得FM检波信号的FM检波部(33)；检测FM检波信号的噪声分量的FM噪声检测部(34)；和基于AM噪声检测部(32)的检测结果以及FM噪声检测部(34)的检测结果来判断广播信号的噪声状况的噪声判断部(35)。

Is there a judgment method for the noise of the broadcast receiving device and the broadcast receiving device?

The invention aims to provide a broadcast receiving device which can accurately judge whether or not the noise of a broadcast signal corresponding to the receiving environment is free or not. The present invention is to carry out AM detection and AM detection AM detection signal with IF signal received by the receiving antenna of the arrival of the broadcast wave radio waves (31) AM noise detection department of noise components and the detection of AM detection signal (32) of the radio receiving device (1), with: FM detection of IF signal and obtain the FM detection FM detection signal (33); detection of FM noise component FM detection signal of the detection unit (34); and the AM noise detection unit (32) based on the detection result and detection of FM noise (34) detection results to determine the noise of noise in the broadcast signal the judging unit (35).

【技术实现步骤摘要】

【技术保护点】
１．一种广播接收装置，其特征在于，具有：接收到来的广播电波的接收部；对由此接收部接收到的广播电波的广播信号进行ＡＭ检波从而取得ＡＭ检波信号的ＡＭ检波部；对所述广播信号进行ＦＭ检波从而取得ＦＭ检波信号的ＦＭ检波部；和基于由所述ＡＭ检波部取得的ＡＭ检波信号以及由所述ＦＭ检波部取得的ＦＭ检波信号，来判断所述广播信号的噪声有无的噪声判断部。

【技术特征摘要】
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【专利技术属性】
技术研发人员：宫城康太，高山一男，谷口庆太，
申请(专利权)人：富士通天株式会社，
类型：发明
国别省市：JP