ZA795210B - Circuit for the generation of a control variable for the control of the transfer constant of electronically actuable amplifying and attenuating members - Google Patents
Circuit for the generation of a control variable for the control of the transfer constant of electronically actuable amplifying and attenuating membersInfo
- Publication number
- ZA795210B ZA795210B ZA00795210A ZA795210A ZA795210B ZA 795210 B ZA795210 B ZA 795210B ZA 00795210 A ZA00795210 A ZA 00795210A ZA 795210 A ZA795210 A ZA 795210A ZA 795210 B ZA795210 B ZA 795210B
- Authority
- ZA
- South Africa
- Prior art keywords
- control
- amplifying
- generation
- circuit
- transfer constant
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G7/00—Volume compression or expansion in amplifiers
- H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
- G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
- G06G7/24—Arrangements for performing computing operations, e.g. operational amplifiers for evaluating logarithmic or exponential functions, e.g. hyperbolic functions
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Software Systems (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Multimedia (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Amplifiers (AREA)
- Networks Using Active Elements (AREA)
- Control Of Amplification And Gain Control (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Electrotherapy Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2842945A DE2842945C3 (de) | 1978-10-02 | 1978-10-02 | Schaltung zur Erzeugung eines Steuersignals zur Steuerung des Übertragungsmaßes von elektronisch steuerbaren Verstärkungs-oder Dämpfungsgliedern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA795210B true ZA795210B (en) | 1980-10-29 |
Family
ID=6051177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA00795210A ZA795210B (en) | 1978-10-02 | 1979-10-01 | Circuit for the generation of a control variable for the control of the transfer constant of electronically actuable amplifying and attenuating members |
Country Status (22)
| Country | Link |
|---|---|
| US (1) | US4278945A (xx) |
| JP (1) | JPS5924561B2 (xx) |
| AT (1) | AT378636B (xx) |
| AU (1) | AU5135079A (xx) |
| BE (1) | BE879066A (xx) |
| BR (1) | BR7906288A (xx) |
| CH (1) | CH647110A5 (xx) |
| DD (1) | DD146375A5 (xx) |
| DE (1) | DE2842945C3 (xx) |
| DK (1) | DK411179A (xx) |
| ES (1) | ES484480A1 (xx) |
| FI (1) | FI72017C (xx) |
| FR (1) | FR2438377A1 (xx) |
| GB (1) | GB2033701B (xx) |
| IT (1) | IT1123418B (xx) |
| MX (1) | MX146191A (xx) |
| NO (1) | NO148094C (xx) |
| PL (1) | PL218670A1 (xx) |
| SE (1) | SE7908119L (xx) |
| SU (1) | SU854286A3 (xx) |
| YU (1) | YU238379A (xx) |
| ZA (1) | ZA795210B (xx) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2847436A1 (de) * | 1978-11-02 | 1980-06-12 | Licentia Gmbh | Schaltungsanordnung mit steuerbaren impedanzen |
| JPS5752240A (en) * | 1980-09-09 | 1982-03-27 | Sony Corp | Noise reducing circuit |
| AU7178181A (en) * | 1980-10-03 | 1982-04-28 | Bloy, Graham Philip | System for maximum efficient transfer of modulated audio frequency energy |
| DE3039410A1 (de) * | 1980-10-18 | 1982-05-19 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Schaltung zur dynamik-kompression und/oder -expansion |
| JPS59500297A (ja) * | 1981-08-26 | 1984-02-23 | ブロイ、グラハム フイリップ | 線路方式を用いた変調信号の転送を最大効率で行なわせるためのシステム |
| DE3604832A1 (de) * | 1986-02-15 | 1987-08-20 | Standard Elektrik Lorenz Ag | Kompressor |
| DE10148441C1 (de) | 2001-10-01 | 2003-03-06 | Siemens Ag | Dynamikkompressor für ein zu komprimierendes Analogsignal |
| JP4727636B2 (ja) * | 2007-09-13 | 2011-07-20 | トヨタ自動車株式会社 | 車両の充電制御装置および車両 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2406258C2 (de) * | 1974-02-09 | 1976-01-08 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Schaltung zur automatischen Dynamik-Kompression oder -Expansion |
| NO142768C (no) * | 1974-01-26 | 1980-10-08 | Licentia Gmbh | Kopling for automatisk dynamikk-kompresjon eller -ekspansjon |
| US3986049A (en) * | 1975-06-30 | 1976-10-12 | Motorola, Inc. | Audio compressor/limiter amplifier |
| JPS5729368Y2 (xx) * | 1977-02-10 | 1982-06-28 |
-
1978
- 1978-10-02 DE DE2842945A patent/DE2842945C3/de not_active Expired
-
1979
- 1979-09-12 GB GB7931675A patent/GB2033701B/en not_active Expired
- 1979-09-19 DD DD79215897A patent/DD146375A5/de unknown
- 1979-09-26 ES ES484480A patent/ES484480A1/es not_active Expired
- 1979-09-27 FR FR7924086A patent/FR2438377A1/fr active Granted
- 1979-09-27 MX MX179419A patent/MX146191A/es unknown
- 1979-09-28 BE BE0/197371A patent/BE879066A/fr not_active IP Right Cessation
- 1979-10-01 PL PL21867079A patent/PL218670A1/xx unknown
- 1979-10-01 YU YU02383/79A patent/YU238379A/xx unknown
- 1979-10-01 FI FI793044A patent/FI72017C/fi not_active IP Right Cessation
- 1979-10-01 DK DK411179A patent/DK411179A/da not_active Application Discontinuation
- 1979-10-01 SE SE7908119A patent/SE7908119L/ not_active Application Discontinuation
- 1979-10-01 AT AT0640679A patent/AT378636B/de not_active IP Right Cessation
- 1979-10-01 SU SU792825148A patent/SU854286A3/ru active
- 1979-10-01 BR BR7906288A patent/BR7906288A/pt unknown
- 1979-10-01 CH CH881979A patent/CH647110A5/de not_active IP Right Cessation
- 1979-10-01 US US06/080,949 patent/US4278945A/en not_active Expired - Lifetime
- 1979-10-01 ZA ZA00795210A patent/ZA795210B/xx unknown
- 1979-10-01 NO NO793142A patent/NO148094C/no unknown
- 1979-10-02 AU AU51350/79A patent/AU5135079A/en not_active Abandoned
- 1979-10-02 JP JP54126497A patent/JPS5924561B2/ja not_active Expired
- 1979-10-02 IT IT26194/79A patent/IT1123418B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| DE2842945A1 (de) | 1980-04-10 |
| FI72017B (fi) | 1986-11-28 |
| FI793044A (fi) | 1980-04-03 |
| FI72017C (fi) | 1987-03-09 |
| YU238379A (en) | 1983-02-28 |
| BE879066A (fr) | 1980-01-16 |
| US4278945A (en) | 1981-07-14 |
| NO793142L (no) | 1980-04-08 |
| IT7926194A0 (it) | 1979-10-02 |
| GB2033701B (en) | 1982-09-22 |
| DE2842945B2 (de) | 1981-03-12 |
| BR7906288A (pt) | 1980-07-15 |
| NO148094C (no) | 1983-08-10 |
| DE2842945C3 (de) | 1981-11-19 |
| MX146191A (es) | 1982-05-21 |
| ES484480A1 (es) | 1980-09-01 |
| PL218670A1 (xx) | 1980-10-06 |
| ATA640679A (de) | 1985-01-15 |
| CH647110A5 (de) | 1984-12-28 |
| AT378636B (de) | 1985-09-10 |
| AU5135079A (en) | 1980-04-17 |
| JPS5924561B2 (ja) | 1984-06-11 |
| DK411179A (da) | 1980-04-03 |
| JPS5549010A (en) | 1980-04-08 |
| SE7908119L (sv) | 1980-04-03 |
| IT1123418B (it) | 1986-04-30 |
| FR2438377A1 (fr) | 1980-04-30 |
| SU854286A3 (ru) | 1981-08-07 |
| DD146375A5 (de) | 1981-02-04 |
| NO148094B (no) | 1983-04-25 |
| GB2033701A (en) | 1980-05-21 |
| FR2438377B1 (xx) | 1983-12-30 |
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