JPS5714230A - Fm stereophonic receiver - Google Patents

Fm stereophonic receiver

Info

Publication number
JPS5714230A
JPS5714230A JP8953380A JP8953380A JPS5714230A JP S5714230 A JPS5714230 A JP S5714230A JP 8953380 A JP8953380 A JP 8953380A JP 8953380 A JP8953380 A JP 8953380A JP S5714230 A JPS5714230 A JP S5714230A
Authority
JP
Japan
Prior art keywords
existence
multipath
distortion
stereophonic
signal
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
JP8953380A
Other languages
Japanese (ja)
Inventor
Akimitsu Shino
Teruo Yumoto
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.)
Faurecia Clarion Electronics Co Ltd
Original Assignee
Clarion Co Ltd
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 Clarion Co Ltd filed Critical Clarion Co Ltd
Priority to JP8953380A priority Critical patent/JPS5714230A/en
Publication of JPS5714230A publication Critical patent/JPS5714230A/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
    • H04H40/72—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
    • 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

Abstract

PURPOSE:To reduce the multipath distortion of a stereophonic output signal by detecting the existence of a multipath by detecting the existence of the higher- harmonic distortion of a pilot signal, and then by operating a low-pass filter by using the detection signal. CONSTITUTION:Among higher-harmonic distortions of a pilot signal contained in an FM signal rceived by an antenna 1, a detecting means 11 detects the existence, specially, of the tertiary higher-harmonic distortion of 57kHz to detect the existence of a multipath. When it is detected, a low-pass filter 12 is operated by the detection current of the detecting means 11 to reduce multipath distortions of a stereophonic output signal sent from a stereophonic demodulation stage 6 to audio amplification stages 7 and 8. Consequently, distortion components specially of 4-10kHz which catch ears are reduced.
JP8953380A 1980-06-30 1980-06-30 Fm stereophonic receiver Pending JPS5714230A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8953380A JPS5714230A (en) 1980-06-30 1980-06-30 Fm stereophonic receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8953380A JPS5714230A (en) 1980-06-30 1980-06-30 Fm stereophonic receiver

Publications (1)

Publication Number Publication Date
JPS5714230A true JPS5714230A (en) 1982-01-25

Family

ID=13973443

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8953380A Pending JPS5714230A (en) 1980-06-30 1980-06-30 Fm stereophonic receiver

Country Status (1)

Country Link
JP (1) JPS5714230A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58195334A (en) * 1982-05-10 1983-11-14 Fujitsu Ten Ltd Multipath detector
JPS58178750U (en) * 1982-05-25 1983-11-30 株式会社ケンウッド FM stereo tuner

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58195334A (en) * 1982-05-10 1983-11-14 Fujitsu Ten Ltd Multipath detector
JPS6333813B2 (en) * 1982-05-10 1988-07-07 Fujitsu Ten Ltd
JPS58178750U (en) * 1982-05-25 1983-11-30 株式会社ケンウッド FM stereo tuner
JPS636910Y2 (en) * 1982-05-25 1988-02-27

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