JPS6425607A - Amplitude companding circuit - Google Patents

Amplitude companding circuit

Info

Publication number
JPS6425607A
JPS6425607A JP62183064A JP18306487A JPS6425607A JP S6425607 A JPS6425607 A JP S6425607A JP 62183064 A JP62183064 A JP 62183064A JP 18306487 A JP18306487 A JP 18306487A JP S6425607 A JPS6425607 A JP S6425607A
Authority
JP
Japan
Prior art keywords
signal
circuits
output
weighting
input
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
JP62183064A
Other languages
Japanese (ja)
Other versions
JP2611242B2 (en
Inventor
Kenzo Akagiri
Tomoko 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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP62183064A priority Critical patent/JP2611242B2/en
Publication of JPS6425607A publication Critical patent/JPS6425607A/en
Application granted granted Critical
Publication of JP2611242B2 publication Critical patent/JP2611242B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)

Abstract

PURPOSE:To reduce the amplitude compression ratio with smooth and complicated input/output characteristic by applying multiplication processing to an input signal at a prescribed circuit only and weighting and adding the multiplication signal obtained at each occasion by prescribed quantity. CONSTITUTION:A control signal generating circuit 21 receives an input signal S1 to output a control signal SG1 to multiplier circuits M1-MN connected in series by n-stage to control the gain of the circuits M1-MN. The circuits M1-MN output multiplication signals SM1-SMN for each multiplication processing and apply the weighting to the signals SM1-SMN and the input signal S1 by a weight coefficient decided by the gain of the weighting circuits A0-AN and an adder circuit 29 outputs an addition output as an output signal Y01. Let the amplitude of the signal S1 be X, the weighting coefficients of the circuits A0-AN be C0-CN, since the relation of signal Y01=C0X+C1+...CNX<1->N exists, the coefficients C0-CN are set to desired values, then the input/output characteristic represented by a high-order function as above is obtained.
JP62183064A 1987-07-22 1987-07-22 Amplitude compression / expansion circuit Expired - Fee Related JP2611242B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62183064A JP2611242B2 (en) 1987-07-22 1987-07-22 Amplitude compression / expansion circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62183064A JP2611242B2 (en) 1987-07-22 1987-07-22 Amplitude compression / expansion circuit

Publications (2)

Publication Number Publication Date
JPS6425607A true JPS6425607A (en) 1989-01-27
JP2611242B2 JP2611242B2 (en) 1997-05-21

Family

ID=16129116

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62183064A Expired - Fee Related JP2611242B2 (en) 1987-07-22 1987-07-22 Amplitude compression / expansion circuit

Country Status (1)

Country Link
JP (1) JP2611242B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7014050B1 (en) 1998-11-25 2006-03-21 Chisso Corporation Filter cartridge
US7033497B1 (en) 1999-03-30 2006-04-25 Chisso Corporation Filter cartridge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7014050B1 (en) 1998-11-25 2006-03-21 Chisso Corporation Filter cartridge
US7033497B1 (en) 1999-03-30 2006-04-25 Chisso Corporation Filter cartridge

Also Published As

Publication number Publication date
JP2611242B2 (en) 1997-05-21

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees