JPS554190A - Fm receiver - Google Patents

Fm receiver

Info

Publication number
JPS554190A
JPS554190A JP7789778A JP7789778A JPS554190A JP S554190 A JPS554190 A JP S554190A JP 7789778 A JP7789778 A JP 7789778A JP 7789778 A JP7789778 A JP 7789778A JP S554190 A JPS554190 A JP S554190A
Authority
JP
Japan
Prior art keywords
output
circuit
detection circuit
path
higher harmonic
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
JP7789778A
Other languages
Japanese (ja)
Inventor
Atsushi Masuyama
Eiji Asano
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP7789778A priority Critical patent/JPS554190A/en
Publication of JPS554190A publication Critical patent/JPS554190A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/16—Automatic control
    • H03G5/18—Automatic control in untuned amplifiers

Landscapes

  • Noise Elimination (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

PURPOSE:To remove automatically a higher harmonic, a distortion component, by providing a tone-quality change circuit which attenuates the high-band component of a low frequency signal demodulated by the output of a multi-path detection circuit, besides the multi-path detecting circuit. CONSTITUTION:When no multi-path occurs, a higher harmonic output is not derived to HPF82 of multi-path detection circuit 8 since the output of detection circuit 5 contains no higher harmonic component, so that the output of Schmitt circuit 83 becomes low in level. As a result, transistor 92 of tone-quality change circuit 9 becomes unconductive and no high-band attenuation is caused by LPF of resistances 93 and 94, and capacitors 95 and 96. When the output of detection circuit 5 contains the higher harmonic component due to the occurrence of a multi-path, a positive voltage is developed at the output of Schmitt circuit 83, allowing transistor 92 to conduct. Therefore, the high-band component in detection circuit 5 is attunuated by LPF of resistances 93 and 94, and capacitors 95 and 96, thereby automatically removing tone distortion.
JP7789778A 1978-06-26 1978-06-26 Fm receiver Pending JPS554190A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7789778A JPS554190A (en) 1978-06-26 1978-06-26 Fm receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7789778A JPS554190A (en) 1978-06-26 1978-06-26 Fm receiver

Publications (1)

Publication Number Publication Date
JPS554190A true JPS554190A (en) 1980-01-12

Family

ID=13646860

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7789778A Pending JPS554190A (en) 1978-06-26 1978-06-26 Fm receiver

Country Status (1)

Country Link
JP (1) JPS554190A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56149122A (en) * 1980-04-22 1981-11-18 Nissan Motor Co Ltd Radio receiver for vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56149122A (en) * 1980-04-22 1981-11-18 Nissan Motor Co Ltd Radio receiver for vehicle

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