JPS6425607A - Amplitude companding circuit - Google Patents
Amplitude companding circuitInfo
- 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
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.
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)
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 |
-
1987
- 1987-07-22 JP JP62183064A patent/JP2611242B2/en not_active Expired - Fee Related
Cited By (2)
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 |