JPS57210733A - Receiver - Google Patents

Receiver

Info

Publication number
JPS57210733A
JPS57210733A JP9569081A JP9569081A JPS57210733A JP S57210733 A JPS57210733 A JP S57210733A JP 9569081 A JP9569081 A JP 9569081A JP 9569081 A JP9569081 A JP 9569081A JP S57210733 A JPS57210733 A JP S57210733A
Authority
JP
Japan
Prior art keywords
noise
output
level
pass filter
rejector
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
JP9569081A
Other languages
Japanese (ja)
Other versions
JPH025341B2 (en
Inventor
Yoshiro Sugai
Eiji Ueno
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.)
Pioneer Corp
Original Assignee
Pioneer Corp
Pioneer Electronic 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 Pioneer Corp, Pioneer Electronic Corp filed Critical Pioneer Corp
Priority to JP9569081A priority Critical patent/JPS57210733A/en
Publication of JPS57210733A publication Critical patent/JPS57210733A/en
Publication of JPH025341B2 publication Critical patent/JPH025341B2/ja
Granted 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
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
    • H03G3/345—Muting during a short period of time when noise pulses are detected, i.e. blanking

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Stereo-Broadcasting Methods (AREA)

Abstract

PURPOSE:To improve the S/N to a multi-pulse, by controlling the separation of left and right channel signals and the level of a reproducing signal according to a noise component in a detection signal. CONSTITUTION:A detection output of an FM detector 5 is applied to a pulsive noise rejector 11. An output of a high pass filter HPF 11d of the noise rejector 11 is branched and applied to another pulse cancellor 100. A multi-path noise E in which the pulsive noise is rejected, is amplified at a noise amplifier 23 and detected from a level detector 24. This output is integrated at a low pass filter LPF 25 and applied to a level set circuit 26 to generate a control signal for controllers 14, 16 and 10.
JP9569081A 1981-06-19 1981-06-19 Receiver Granted JPS57210733A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9569081A JPS57210733A (en) 1981-06-19 1981-06-19 Receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9569081A JPS57210733A (en) 1981-06-19 1981-06-19 Receiver

Publications (2)

Publication Number Publication Date
JPS57210733A true JPS57210733A (en) 1982-12-24
JPH025341B2 JPH025341B2 (en) 1990-02-01

Family

ID=14144484

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9569081A Granted JPS57210733A (en) 1981-06-19 1981-06-19 Receiver

Country Status (1)

Country Link
JP (1) JPS57210733A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0393842A2 (en) * 1989-04-20 1990-10-24 Delco Electronics Corporation Closed-loop audio attenuator
JPH0334728A (en) * 1989-06-30 1991-02-14 Pioneer Electron Corp Noise suppressor in fm receiver

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5617528A (en) * 1979-07-23 1981-02-19 Mitsubishi Electric Corp Fm receiver

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5617528A (en) * 1979-07-23 1981-02-19 Mitsubishi Electric Corp Fm receiver

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0393842A2 (en) * 1989-04-20 1990-10-24 Delco Electronics Corporation Closed-loop audio attenuator
JPH0334728A (en) * 1989-06-30 1991-02-14 Pioneer Electron Corp Noise suppressor in fm receiver

Also Published As

Publication number Publication date
JPH025341B2 (en) 1990-02-01

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