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JPH0937178A Expired / Lapsed JP ⏱️ 0.0 years remaining

Reception level display device

Assignee: Toshiba Corp
•
Filing: 1995-07-19
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Granted: —
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Expires: 2015-07-19
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Abstract

Abstract Translated from Japanese (57)【要約】 【課題】 入力信号レベルにかかわらず、正確にそのC /N値に応じた受信レベル表示を行うことができるよう にする。 【解決手段】 AGC回路14で得られるAGC電圧、 FM復調部16で得られるAFC電圧、BPF18及び 検波回路19で得られるノイズ検波電圧、映像信号検出 部20,21で得られる映像信号検出結果、音声信号検 出部22,23で得られる音声信号検出結果を表示制御 部24に入力する。そして、この表示制御部24にて、 AGC電圧を基に受信機の入力信号レベルを検出し、ノ イズ検波電圧に入力信号レベルに応じた補正をかけて、 この補正をかけたノイズ検波電圧を基に入力信号のC/ Nを求め、表示部25にその入力信号C/Nに応じた受 信レベル表示を行うようにしたものである。 (57) [Abstract] [Problem] The C is accurately measured regardless of the input signal level. / Enable to display the reception level according to the N value. An AGC voltage obtained by an AGC circuit, AFC voltage obtained by the FM demodulation unit 16, noise detection voltage obtained by the BPF 18 and the detection circuit 19, video signal detection results obtained by the video signal detection units 20 and 21, and audio signal detection obtained by the audio signal detection units 22 and 23 The result is input to the display control unit 24. Then, in the display control unit 24, The input signal level of the receiver is detected based on the AGC voltage, and the noise detection voltage is corrected according to the input signal level, Based on the noise detection voltage with this correction, C / of the input signal N is obtained, and the display level is displayed on the display unit 25 according to the input signal C / N.

Inventors

  • 👤 Akihiro Mochida
  • 👤 明宏 持田

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-11-06 18:15
CPC Classifications
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