JPS56140732A - Fm monaural/stereo mpx circuit switching system - Google Patents

Fm monaural/stereo mpx circuit switching system

Info

Publication number
JPS56140732A
JPS56140732A JP4327080A JP4327080A JPS56140732A JP S56140732 A JPS56140732 A JP S56140732A JP 4327080 A JP4327080 A JP 4327080A JP 4327080 A JP4327080 A JP 4327080A JP S56140732 A JPS56140732 A JP S56140732A
Authority
JP
Japan
Prior art keywords
circuit
output
monaural
wave detection
intermediate frequency
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.)
Pending
Application number
JP4327080A
Other languages
Japanese (ja)
Inventor
Katsuyuki Watarikawa
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP4327080A priority Critical patent/JPS56140732A/en
Publication of JPS56140732A publication Critical patent/JPS56140732A/en
Pending 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
    • H04H40/81—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 stereo-monaural switching
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

PURPOSE:To reduce the power consumption and thus prolong the life of battery, by making the output of wave detection of the intermediate frequency pass through other circuit and not through the MPX circuit when the FM monaural broadcast is received. CONSTITUTION:The output of the intermediate frequency is made to pass through other circuit not through the MPX circuit 5 when the FM monaural broadcast is received. For instance, the output of wave detection obtained by giving a wave detection to the output of the FM intermediate frequency amplifying circuit 1 through the wave detecting circuit 2 is supplied to the buffer amplifier 4 and the circuit 5 in case the change-over switch 3 is set at the MONO position for reception of the FM monaural broadcast and the switch 3 is set at the STEREO position for reception of the FM stereo broadcast respectively. Then the output of wave detection delivered from either the amplifier 4 or circuit 5 is supplied to the de-emphasis circuit 6 or 7 and then led to an audio amplifier.
JP4327080A 1980-04-01 1980-04-01 Fm monaural/stereo mpx circuit switching system Pending JPS56140732A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4327080A JPS56140732A (en) 1980-04-01 1980-04-01 Fm monaural/stereo mpx circuit switching system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4327080A JPS56140732A (en) 1980-04-01 1980-04-01 Fm monaural/stereo mpx circuit switching system

Publications (1)

Publication Number Publication Date
JPS56140732A true JPS56140732A (en) 1981-11-04

Family

ID=12659131

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4327080A Pending JPS56140732A (en) 1980-04-01 1980-04-01 Fm monaural/stereo mpx circuit switching system

Country Status (1)

Country Link
JP (1) JPS56140732A (en)

Similar Documents

Publication Publication Date Title
JPS56140732A (en) Fm monaural/stereo mpx circuit switching system
JPS5696545A (en) Transmission/reception system for specific program broadcast
JPS5535582A (en) Multiple sound reception device
EP0279422A3 (en) Fm/fmx stereophonic receiver
JPS5617528A (en) Fm receiver
JPS5623050A (en) Fm-am receiver
JPS6481531A (en) Receiver
JPS54139507A (en) Acoustic device for automobiles
JPS5610750A (en) Radio receiver
JPS51114802A (en) Fm stereo receiver
JPS55136740A (en) Receiver for multiplex signal
JPS5564478A (en) Television sound multiplex receiver
JPS5526761A (en) Television sound multiplex demodulator circuit
JPS5711584A (en) Audio multiplex broadcast discriminating circuit for television receiver
JPS567541A (en) Fm radio for vehicle
JPS56168454A (en) Am stereophonic receiver
JPS5335301A (en) Mpx decoder circuit
JPS5535588A (en) Multiple sound reception device
JPS5578685A (en) Receiver
JPS5658344A (en) Signal receiver
JPS57188144A (en) Clearing signal control system for radio transmitter and receiver
JPS5578683A (en) Receiver
JPS5627548A (en) Transmission-reception system for fm broadcast
JPS56143740A (en) Subsignal detector of fm stereo receiver
JPS5564479A (en) Television sound multiplex receiver