JPS5417610A - Compressor-expander circuit for signal - Google Patents

Compressor-expander circuit for signal

Info

Publication number
JPS5417610A
JPS5417610A JP8325277A JP8325277A JPS5417610A JP S5417610 A JPS5417610 A JP S5417610A JP 8325277 A JP8325277 A JP 8325277A JP 8325277 A JP8325277 A JP 8325277A JP S5417610 A JPS5417610 A JP S5417610A
Authority
JP
Japan
Prior art keywords
compressor
signal
expander circuit
expander
variable gain
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
JP8325277A
Other languages
Japanese (ja)
Other versions
JPS6047774B2 (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 JP52083252A priority Critical patent/JPS6047774B2/en
Publication of JPS5417610A publication Critical patent/JPS5417610A/en
Publication of JPS6047774B2 publication Critical patent/JPS6047774B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

PURPOSE: To obtain a high-fidelity compressor-expander of extremely-simple constitution, by controlling the gain of a variable gain amplifier by the difference output detected through the comparison after voltage-dividing appropriately the logarithm-converted input and output of the variable gain amplifier.
COPYRIGHT: (C)1979,JPO&Japio
JP52083252A 1977-07-09 1977-07-09 Signal compression/expansion circuit Expired JPS6047774B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52083252A JPS6047774B2 (en) 1977-07-09 1977-07-09 Signal compression/expansion circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52083252A JPS6047774B2 (en) 1977-07-09 1977-07-09 Signal compression/expansion circuit

Publications (2)

Publication Number Publication Date
JPS5417610A true JPS5417610A (en) 1979-02-09
JPS6047774B2 JPS6047774B2 (en) 1985-10-23

Family

ID=13797136

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52083252A Expired JPS6047774B2 (en) 1977-07-09 1977-07-09 Signal compression/expansion circuit

Country Status (1)

Country Link
JP (1) JPS6047774B2 (en)

Also Published As

Publication number Publication date
JPS6047774B2 (en) 1985-10-23

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