JPS6473917A - Fm receiver - Google Patents

Fm receiver

Info

Publication number
JPS6473917A
JPS6473917A JP22986287A JP22986287A JPS6473917A JP S6473917 A JPS6473917 A JP S6473917A JP 22986287 A JP22986287 A JP 22986287A JP 22986287 A JP22986287 A JP 22986287A JP S6473917 A JPS6473917 A JP S6473917A
Authority
JP
Japan
Prior art keywords
component
low
pass
voltage
receiver
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
JP22986287A
Other languages
Japanese (ja)
Inventor
Shogo Iizuka
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 JP22986287A priority Critical patent/JPS6473917A/en
Publication of JPS6473917A publication Critical patent/JPS6473917A/en
Pending legal-status Critical Current

Links

Landscapes

  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

PURPOSE:To keep communication by changing a voice band width after demodulation in response to a high frequency input voltage of a receiver so as to suppress only a noise component even in a low receiving voltage area. CONSTITUTION:When a reception voltage detection circuit 9 detects the reduc tion in the received voltage, the pass band width of a band variable filter 6 is made narrow to pass a component of 0.8-1.5kHz being a major component of sound especially thereby attenuating the low frequency component. Thus, it is possible to pass only the noise component without giving effect on a voice signal. Moreover, it is possible to make the noise band narrow in the low recep tion voltage area, a high S/N is ensured even in the low reception voltage area thereby realizing a high sensitivity receiver equivalently.
JP22986287A 1987-09-16 1987-09-16 Fm receiver Pending JPS6473917A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22986287A JPS6473917A (en) 1987-09-16 1987-09-16 Fm receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22986287A JPS6473917A (en) 1987-09-16 1987-09-16 Fm receiver

Publications (1)

Publication Number Publication Date
JPS6473917A true JPS6473917A (en) 1989-03-20

Family

ID=16898861

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22986287A Pending JPS6473917A (en) 1987-09-16 1987-09-16 Fm receiver

Country Status (1)

Country Link
JP (1) JPS6473917A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007060469A (en) * 2005-08-26 2007-03-08 Kenwood Corp Residual noise reduction circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007060469A (en) * 2005-08-26 2007-03-08 Kenwood Corp Residual noise reduction circuit

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