JPS56128043A - Stereophonic indicator - Google Patents

Stereophonic indicator

Info

Publication number
JPS56128043A
JPS56128043A JP3193380A JP3193380A JPS56128043A JP S56128043 A JPS56128043 A JP S56128043A JP 3193380 A JP3193380 A JP 3193380A JP 3193380 A JP3193380 A JP 3193380A JP S56128043 A JPS56128043 A JP S56128043A
Authority
JP
Japan
Prior art keywords
stereophonic
circuit
signal
separation value
detection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP3193380A
Other languages
Japanese (ja)
Other versions
JPS5920212B2 (en
Inventor
Jiyunichi Hikita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rohm Co Ltd
Original Assignee
Rohm Co Ltd
Toyo Electronics Industry Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rohm Co Ltd, Toyo Electronics Industry Corp filed Critical Rohm Co Ltd
Priority to JP3193380A priority Critical patent/JPS5920212B2/en
Publication of JPS56128043A publication Critical patent/JPS56128043A/en
Publication of JPS5920212B2 publication Critical patent/JPS5920212B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H04H40/36—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving
    • H04H40/45—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast systems receiving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/1646—Circuits adapted for the reception of stereophonic signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H04H40/36—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving
    • H04H40/45—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast systems receiving
    • H04H40/72—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast systems receiving for noise suppression

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Stereo-Broadcasting Methods (AREA)

Abstract

PURPOSE:To easily know a steriophonic demodulation and its demodulation state, by changing a stereophonic display in response to a separation value of the stereophonic demodulating circuit. CONSTITUTION:By a level input corresponding to a detection output from the FM detection circuit 14, and a pilot signal from the pilot synchronozer 18, it is detected that a stereophonic wave has been received in the stereophonic display control unit 22, and it is displayed on the stereophonic indicator 36. Also, corresponding to the electric field intensity of a receiving signal which has been obtained by the intermediate frequency amplifier 12, a control signal is generated by the control voltage generating circuit 34, and a separation value of the difference signal demodulating circuit in the stereophonic demodulating circuit 16 is controlled by said control signal output. And, a detection level is changed by controlling the switching circuit 42 of the sterephonic display control circuit 22 by said separation value.
JP3193380A 1980-03-13 1980-03-13 stereo demodulator Expired JPS5920212B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3193380A JPS5920212B2 (en) 1980-03-13 1980-03-13 stereo demodulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3193380A JPS5920212B2 (en) 1980-03-13 1980-03-13 stereo demodulator

Publications (2)

Publication Number Publication Date
JPS56128043A true JPS56128043A (en) 1981-10-07
JPS5920212B2 JPS5920212B2 (en) 1984-05-11

Family

ID=12344762

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3193380A Expired JPS5920212B2 (en) 1980-03-13 1980-03-13 stereo demodulator

Country Status (1)

Country Link
JP (1) JPS5920212B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59118352U (en) * 1983-01-26 1984-08-09 アルパイン株式会社 FM stereo receiver separation display device
JPS6123404A (en) * 1984-04-30 1986-01-31 モトロ−ラ・インコ−ポレ−テツド Tuning and stereoscopic signal double indicayor circuit
JP2009039344A (en) * 2007-08-09 2009-02-26 Hitachi Ltd Rack cabinet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59118352U (en) * 1983-01-26 1984-08-09 アルパイン株式会社 FM stereo receiver separation display device
JPS6123404A (en) * 1984-04-30 1986-01-31 モトロ−ラ・インコ−ポレ−テツド Tuning and stereoscopic signal double indicayor circuit
JP2009039344A (en) * 2007-08-09 2009-02-26 Hitachi Ltd Rack cabinet

Also Published As

Publication number Publication date
JPS5920212B2 (en) 1984-05-11

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