CH656996A5 - Schaltungsanordnung zum modifizieren des dynamikbereichs. - Google Patents
Schaltungsanordnung zum modifizieren des dynamikbereichs. Download PDFInfo
- Publication number
- CH656996A5 CH656996A5 CH8223/81A CH822381A CH656996A5 CH 656996 A5 CH656996 A5 CH 656996A5 CH 8223/81 A CH8223/81 A CH 8223/81A CH 822381 A CH822381 A CH 822381A CH 656996 A5 CH656996 A5 CH 656996A5
- Authority
- CH
- Switzerland
- Prior art keywords
- signal
- circuit
- signals
- band
- frequency
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G7/00—Volume compression or expansion in amplifiers
- H03G7/06—Volume compression or expansion in amplifiers having semiconductor devices
- H03G7/08—Volume compression or expansion in amplifiers having semiconductor devices incorporating negative feedback
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
- H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
- H03G9/12—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices
- H03G9/18—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices for tone control and volume expansion or compression
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
- H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
- H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems
Landscapes
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/325,530 US4498055A (en) | 1981-09-10 | 1981-12-01 | Circuit arrangements for modifying dynamic range |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH656996A5 true CH656996A5 (de) | 1986-07-31 |
Family
ID=23268273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH8223/81A CH656996A5 (de) | 1981-12-01 | 1981-12-22 | Schaltungsanordnung zum modifizieren des dynamikbereichs. |
Country Status (15)
| Country | Link |
|---|---|
| KR (1) | KR900000483B1 (da) |
| BE (1) | BE901906Q (da) |
| CA (1) | CA1188996A (da) |
| CH (1) | CH656996A5 (da) |
| DE (1) | DE3151137A1 (da) |
| DK (1) | DK575681A (da) |
| ES (1) | ES508394A0 (da) |
| FR (1) | FR2517496B1 (da) |
| GB (1) | GB2111355B (da) |
| GR (1) | GR77317B (da) |
| IE (1) | IE52495B1 (da) |
| IT (1) | IT1140402B (da) |
| LU (1) | LU83854A1 (da) |
| NL (1) | NL192860C (da) |
| SE (1) | SE449281B (da) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4922535A (en) * | 1986-03-03 | 1990-05-01 | Dolby Ray Milton | Transient control aspects of circuit arrangements for altering the dynamic range of audio signals |
| CA1269138A (en) * | 1986-03-03 | 1990-05-15 | Ray Milton Dolby | Attenuator circuit employing bootstrapping |
| KR960014115B1 (ko) * | 1986-03-03 | 1996-10-14 | 밀톤 돌비 레이 | 부우트스트래핑(Bootstrapping)을 사용한 감쇄회로 |
| GB2429779A (en) * | 2005-09-01 | 2007-03-07 | Geo Kingsbury Machine Tools Lt | Testing components of drive trains |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1120541A (en) * | 1965-08-11 | 1968-07-17 | Dolby Ray Milton | Improvements in noise reduction systems |
| US3665345A (en) * | 1969-07-21 | 1972-05-23 | Dolby Laboratories Inc | Compressors and expanders for noise reduction systems |
| FI57502C (fi) * | 1971-04-06 | 1980-08-11 | Victor Company Of Japan | Kompressions- och expansionssystem |
| US4101849A (en) * | 1976-11-08 | 1978-07-18 | Dbx, Inc. | Adaptive filter |
| BE889428A (fr) * | 1980-06-30 | 1981-10-16 | Dolby Ray Milton | Dispositif destine a modifier la plage dynamique de signaux d'entree |
-
1981
- 1981-12-09 GB GB08137167A patent/GB2111355B/en not_active Expired
- 1981-12-11 CA CA000392068A patent/CA1188996A/en not_active Expired
- 1981-12-15 IE IE2951/81A patent/IE52495B1/en not_active IP Right Cessation
- 1981-12-15 SE SE8107495A patent/SE449281B/sv not_active IP Right Cessation
- 1981-12-19 KR KR1019810005016A patent/KR900000483B1/ko active
- 1981-12-22 NL NL8105775A patent/NL192860C/nl not_active IP Right Cessation
- 1981-12-22 CH CH8223/81A patent/CH656996A5/de not_active IP Right Cessation
- 1981-12-23 GR GR66897A patent/GR77317B/el unknown
- 1981-12-23 DK DK575681A patent/DK575681A/da not_active Application Discontinuation
- 1981-12-23 DE DE19813151137 patent/DE3151137A1/de active Granted
- 1981-12-24 LU LU83854A patent/LU83854A1/fr unknown
- 1981-12-28 FR FR8124314A patent/FR2517496B1/fr not_active Expired
- 1981-12-29 ES ES508394A patent/ES508394A0/es active Granted
- 1981-12-29 IT IT25877/81A patent/IT1140402B/it active
-
1985
- 1985-03-08 BE BE0/214626A patent/BE901906Q/fr not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR830008462A (ko) | 1983-11-18 |
| GB2111355B (en) | 1985-02-13 |
| IE812951L (en) | 1983-06-01 |
| IT1140402B (it) | 1986-09-24 |
| CA1188996A (en) | 1985-06-18 |
| ES8303848A1 (es) | 1983-02-01 |
| LU83854A1 (fr) | 1982-05-07 |
| KR900000483B1 (ko) | 1990-01-30 |
| ES508394A0 (es) | 1983-02-01 |
| DE3151137C2 (da) | 1993-04-01 |
| IE52495B1 (en) | 1987-11-25 |
| FR2517496A1 (fr) | 1983-06-03 |
| NL8105775A (nl) | 1983-07-01 |
| NL192860B (nl) | 1997-11-03 |
| NL192860C (nl) | 1998-03-04 |
| GR77317B (da) | 1984-09-11 |
| DK575681A (da) | 1983-06-02 |
| GB2111355A (en) | 1983-06-29 |
| SE449281B (sv) | 1987-04-13 |
| SE8107495L (sv) | 1983-06-02 |
| BE901906Q (fr) | 1985-07-01 |
| FR2517496B1 (fr) | 1985-11-15 |
| DE3151137A1 (de) | 1983-07-14 |
| IT8125877A0 (it) | 1981-12-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |