JPS575442A - Fm receiver - Google Patents

Fm receiver

Info

Publication number
JPS575442A
JPS575442A JP8059380A JP8059380A JPS575442A JP S575442 A JPS575442 A JP S575442A JP 8059380 A JP8059380 A JP 8059380A JP 8059380 A JP8059380 A JP 8059380A JP S575442 A JPS575442 A JP S575442A
Authority
JP
Japan
Prior art keywords
frequency
local oscillator
band
discriminator
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.)
Granted
Application number
JP8059380A
Other languages
Japanese (ja)
Other versions
JPS6213856B2 (en
Inventor
Hideo Shibuya
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 JP8059380A priority Critical patent/JPS575442A/en
Publication of JPS575442A publication Critical patent/JPS575442A/en
Publication of JPS6213856B2 publication Critical patent/JPS6213856B2/ja
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)

Abstract

PURPOSE:To reject multipath interference, by providing a filter which can attenuate the frequency component to be demodulated between a frequency discriminator and a local oscillator and performing frequency modulation with the output to the local oscillator. CONSTITUTION:A reception signal inputted from an antenna P is amplified at a high-frequency amplifier 1 and converted into an intermediate frequency at a mixer 2. This converted signal is applied to an intermediate frequency amplifier 3 for band amplification, demodulated at a frequency discriminator 4 and outputted from a speaker S after being amplified at a low-frequency amplifier 5. On the other hand, a voice signal outputted from the frequency discriminator 4 is inputted to a filter 6 and only an unnecessary band passes through by attenuating a desired demodulation frequency band. Frequency modulation is made for a local oscillator 7 with this signal to avoid the modulated component due to noise in the outside of the desired demodulation frequency band produced with multipath in the output of the mixer 2.
JP8059380A 1980-06-13 1980-06-13 Fm receiver Granted JPS575442A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8059380A JPS575442A (en) 1980-06-13 1980-06-13 Fm receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8059380A JPS575442A (en) 1980-06-13 1980-06-13 Fm receiver

Publications (2)

Publication Number Publication Date
JPS575442A true JPS575442A (en) 1982-01-12
JPS6213856B2 JPS6213856B2 (en) 1987-03-30

Family

ID=13722630

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8059380A Granted JPS575442A (en) 1980-06-13 1980-06-13 Fm receiver

Country Status (1)

Country Link
JP (1) JPS575442A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0312056U (en) * 1989-06-15 1991-02-07
JPH0550480U (en) * 1991-12-10 1993-07-02 有限会社シンクドリーム label
JPH0740983A (en) * 1993-07-16 1995-02-10 Mutual Corp Blister package

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3231822A (en) * 1961-12-22 1966-01-25 Bell Telephone Labor Inc Frequency modulation feedback receiver
JPS5129783A (en) * 1974-07-05 1976-03-13 Siemens Ag Kosakukikainokoguno maechoseisochi
JPS55693A (en) * 1979-06-04 1980-01-07 Nippon Gakki Seizo Kk Tuner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3231822A (en) * 1961-12-22 1966-01-25 Bell Telephone Labor Inc Frequency modulation feedback receiver
JPS5129783A (en) * 1974-07-05 1976-03-13 Siemens Ag Kosakukikainokoguno maechoseisochi
JPS55693A (en) * 1979-06-04 1980-01-07 Nippon Gakki Seizo Kk Tuner

Also Published As

Publication number Publication date
JPS6213856B2 (en) 1987-03-30

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