FR2438377A1 - Montage pour engendrer une grandeur pilote pour commander le facteur de transmission de circuits d'amplification ou d'amortissement a commande electronique - Google Patents
Montage pour engendrer une grandeur pilote pour commander le facteur de transmission de circuits d'amplification ou d'amortissement a commande electroniqueInfo
- Publication number
- FR2438377A1 FR2438377A1 FR7924086A FR7924086A FR2438377A1 FR 2438377 A1 FR2438377 A1 FR 2438377A1 FR 7924086 A FR7924086 A FR 7924086A FR 7924086 A FR7924086 A FR 7924086A FR 2438377 A1 FR2438377 A1 FR 2438377A1
- Authority
- FR
- France
- Prior art keywords
- generating
- assembly
- controlling
- electronically controlled
- transmission factor
- 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
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)
Abstract
L'INVENTION CONCERNE UN CIRCUIT DE TRANSMISSION AVEC FONCTION EXPONENTIELLE, POUR UN COMPRESSEUR A CARACTERISTIQUE DB LINEAIRE. LE CIRCUIT DE TRANSMISSION, QUI DETERMINE LA FONCTION EXPONENTIELLE, EST CONSTITUE A L'AIDE DE PLUSIEURS TRANSISTORS CONNECTES A DES TENSIONS DE REFERENCE DIFFERENTES ET DONT LES RESISTANCES SERIE PRESENTENT DES VALEURS ECHELONNEES.
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 (2)
Publication Number | Publication Date |
---|---|
FR2438377A1 true FR2438377A1 (fr) | 1980-04-30 |
FR2438377B1 FR2438377B1 (fr) | 1983-12-30 |
Family
ID=6051177
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7924086A Granted FR2438377A1 (fr) | 1978-10-02 | 1979-09-27 | Montage pour engendrer une grandeur pilote pour commander le facteur de transmission de circuits d'amplification ou d'amortissement a commande electronique |
Country Status (22)
Country | Link |
---|---|
US (1) | US4278945A (fr) |
JP (1) | JPS5924561B2 (fr) |
AT (1) | AT378636B (fr) |
AU (1) | AU5135079A (fr) |
BE (1) | BE879066A (fr) |
BR (1) | BR7906288A (fr) |
CH (1) | CH647110A5 (fr) |
DD (1) | DD146375A5 (fr) |
DE (1) | DE2842945C3 (fr) |
DK (1) | DK411179A (fr) |
ES (1) | ES484480A1 (fr) |
FI (1) | FI72017C (fr) |
FR (1) | FR2438377A1 (fr) |
GB (1) | GB2033701B (fr) |
IT (1) | IT1123418B (fr) |
MX (1) | MX146191A (fr) |
NO (1) | NO148094C (fr) |
PL (1) | PL218670A1 (fr) |
SE (1) | SE7908119L (fr) |
SU (1) | SU854286A3 (fr) |
YU (1) | YU238379A (fr) |
ZA (1) | ZA795210B (fr) |
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 |
DE3050574A1 (en) * | 1980-10-03 | 1982-11-18 | G Bloy | 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 |
EP0086777A1 (fr) * | 1981-08-26 | 1983-08-31 | EBERHARDT, Alfred F. | Systeme de transfert de signaux modules avec un rendement maximum en utilisant des systemes de lignes |
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 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2406258B1 (de) * | 1974-02-09 | 1975-05-22 | Licentia Gmbh | Schaltung zur automatischen Dynamik-Kompression oder -Expansion |
FR2259480A1 (fr) * | 1974-01-26 | 1975-08-22 | Licentia Gmbh |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3986049A (en) * | 1975-06-30 | 1976-10-12 | Motorola, Inc. | Audio compressor/limiter amplifier |
JPS5729368Y2 (fr) * | 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 MX MX179419A patent/MX146191A/es unknown
- 1979-09-27 FR FR7924086A patent/FR2438377A1/fr active Granted
- 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 FI FI793044A patent/FI72017C/fi not_active IP Right Cessation
- 1979-10-01 CH CH881979A patent/CH647110A5/de not_active IP Right Cessation
- 1979-10-01 YU YU02383/79A patent/YU238379A/xx unknown
- 1979-10-01 US US06/080,949 patent/US4278945A/en not_active Expired - Lifetime
- 1979-10-01 SU SU792825148A patent/SU854286A3/ru active
- 1979-10-01 NO NO793142A patent/NO148094C/no unknown
- 1979-10-01 BR BR7906288A patent/BR7906288A/pt unknown
- 1979-10-01 ZA ZA00795210A patent/ZA795210B/xx unknown
- 1979-10-01 DK DK411179A patent/DK411179A/da not_active Application Discontinuation
- 1979-10-01 AT AT0640679A patent/AT378636B/de not_active IP Right Cessation
- 1979-10-01 SE SE7908119A patent/SE7908119L/ not_active Application Discontinuation
- 1979-10-02 JP JP54126497A patent/JPS5924561B2/ja not_active Expired
- 1979-10-02 AU AU51350/79A patent/AU5135079A/en not_active Abandoned
- 1979-10-02 IT IT26194/79A patent/IT1123418B/it active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2259480A1 (fr) * | 1974-01-26 | 1975-08-22 | Licentia Gmbh | |
DE2406258B1 (de) * | 1974-02-09 | 1975-05-22 | Licentia Gmbh | Schaltung zur automatischen Dynamik-Kompression oder -Expansion |
Also Published As
Publication number | Publication date |
---|---|
PL218670A1 (fr) | 1980-10-06 |
AT378636B (de) | 1985-09-10 |
YU238379A (en) | 1983-02-28 |
CH647110A5 (de) | 1984-12-28 |
BR7906288A (pt) | 1980-07-15 |
DD146375A5 (de) | 1981-02-04 |
DE2842945B2 (de) | 1981-03-12 |
JPS5549010A (en) | 1980-04-08 |
SU854286A3 (ru) | 1981-08-07 |
IT1123418B (it) | 1986-04-30 |
ATA640679A (de) | 1985-01-15 |
JPS5924561B2 (ja) | 1984-06-11 |
DE2842945C3 (de) | 1981-11-19 |
ES484480A1 (es) | 1980-09-01 |
ZA795210B (en) | 1980-10-29 |
FI793044A (fi) | 1980-04-03 |
MX146191A (es) | 1982-05-21 |
NO148094C (no) | 1983-08-10 |
FR2438377B1 (fr) | 1983-12-30 |
FI72017B (fi) | 1986-11-28 |
DK411179A (da) | 1980-04-03 |
AU5135079A (en) | 1980-04-17 |
US4278945A (en) | 1981-07-14 |
GB2033701A (en) | 1980-05-21 |
SE7908119L (sv) | 1980-04-03 |
BE879066A (fr) | 1980-01-16 |
FI72017C (fi) | 1987-03-09 |
DE2842945A1 (de) | 1980-04-10 |
NO793142L (no) | 1980-04-08 |
IT7926194A0 (it) | 1979-10-02 |
GB2033701B (en) | 1982-09-22 |
NO148094B (no) | 1983-04-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
ST | Notification of lapse |