JPS5583352A - Noise reduction unit on signal compression and expansion system - Google Patents

Noise reduction unit on signal compression and expansion system

Info

Publication number
JPS5583352A
JPS5583352A JP16601078A JP16601078A JPS5583352A JP S5583352 A JPS5583352 A JP S5583352A JP 16601078 A JP16601078 A JP 16601078A JP 16601078 A JP16601078 A JP 16601078A JP S5583352 A JPS5583352 A JP S5583352A
Authority
JP
Japan
Prior art keywords
operational amplifier
circuit
variable impedance
root unit
noise reduction
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
JP16601078A
Other languages
English (en)
Inventor
Kenichi Sato
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP16601078A priority Critical patent/JPS5583352A/ja
Publication of JPS5583352A publication Critical patent/JPS5583352A/ja
Pending legal-status Critical Current

Links

Landscapes

  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
JP16601078A 1978-12-20 1978-12-20 Noise reduction unit on signal compression and expansion system Pending JPS5583352A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16601078A JPS5583352A (en) 1978-12-20 1978-12-20 Noise reduction unit on signal compression and expansion system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16601078A JPS5583352A (en) 1978-12-20 1978-12-20 Noise reduction unit on signal compression and expansion system

Publications (1)

Publication Number Publication Date
JPS5583352A true JPS5583352A (en) 1980-06-23

Family

ID=15823213

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16601078A Pending JPS5583352A (en) 1978-12-20 1978-12-20 Noise reduction unit on signal compression and expansion system

Country Status (1)

Country Link
JP (1) JPS5583352A (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55156412A (en) * 1979-05-24 1980-12-05 Sony Corp Gain control circuit
JPS60154797A (ja) * 1984-01-25 1985-08-14 Hitachi Ltd カラ−信号処理回路
JPH07307633A (ja) * 1980-03-31 1995-11-21 Hewlett Packard Co <Hp> 信号減衰機

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55156412A (en) * 1979-05-24 1980-12-05 Sony Corp Gain control circuit
JPS6361804B2 (ja) * 1979-05-24 1988-11-30
JPH07307633A (ja) * 1980-03-31 1995-11-21 Hewlett Packard Co <Hp> 信号減衰機
JPS60154797A (ja) * 1984-01-25 1985-08-14 Hitachi Ltd カラ−信号処理回路

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