JPS55165034A - Fm radio receiver - Google Patents

Fm radio receiver

Info

Publication number
JPS55165034A
JPS55165034A JP7271679A JP7271679A JPS55165034A JP S55165034 A JPS55165034 A JP S55165034A JP 7271679 A JP7271679 A JP 7271679A JP 7271679 A JP7271679 A JP 7271679A JP S55165034 A JPS55165034 A JP S55165034A
Authority
JP
Japan
Prior art keywords
signal
output
detection
detection circuit
circuit
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
JP7271679A
Other languages
Japanese (ja)
Inventor
Yoshio Horiike
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP7271679A priority Critical patent/JPS55165034A/en
Publication of JPS55165034A publication Critical patent/JPS55165034A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference

Abstract

PURPOSE:To effectively reduce the unpleasant sound due to multi-paths in a strong electric field area, by adding the AM detection output of the pilot signal included in the FM detection output signal to the switching means in the FM detection circuit post stage. CONSTITUTION:When multipaths are developed, the pilot signal p in 19kHz in the output signal from the FM detection circuit 6 of a FM radio receiver is subjected to AM modulation with the audio signal. Accordingly, the signal p subjected to AM modulation is produced at the output of the pilot signal detection circuit 10, and this signal p is AM-detected at the AM detection circuit 11, and when this AM detection output exceeds a given value preset, an output is produced at the DC voltage generating circuit 12, the electronic switch 8 is turned on via the hold circuit 13, the capacitor C is connected to the ground to attenuate the high band component of audio signal, resulting in reducing the unpleasant sound due to multipaths developed.
JP7271679A 1979-06-08 1979-06-08 Fm radio receiver Pending JPS55165034A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7271679A JPS55165034A (en) 1979-06-08 1979-06-08 Fm radio receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7271679A JPS55165034A (en) 1979-06-08 1979-06-08 Fm radio receiver

Publications (1)

Publication Number Publication Date
JPS55165034A true JPS55165034A (en) 1980-12-23

Family

ID=13497345

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7271679A Pending JPS55165034A (en) 1979-06-08 1979-06-08 Fm radio receiver

Country Status (1)

Country Link
JP (1) JPS55165034A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02180435A (en) * 1988-12-30 1990-07-13 Icom Inc Squelch circuit and multimode receiver equipped with the squelch circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02180435A (en) * 1988-12-30 1990-07-13 Icom Inc Squelch circuit and multimode receiver equipped with the squelch circuit

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