FR2317821A2 - Dispositif de compression ou d'extension automatique - Google Patents

Dispositif de compression ou d'extension automatique

Info

Publication number: FR2317821A2
Authority: FR; France
Prior art keywords: extension device; automatic compression; compression; automatic; extension
Prior art date: 1975-06-28
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

FR7619619A

Other languages

English (en)

Other versions

FR2317821B1 (fr

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.)

Licentia Patent Verwaltungs GmbH

Original Assignee

Licentia Patent Verwaltungs GmbH

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.)

1975-06-28

Filing date

1976-06-28

Publication date

1977-02-04

1976-06-28 Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH

1977-02-04 Publication of FR2317821A2 publication Critical patent/FR2317821A2/fr

1980-07-18 Application granted granted Critical

1980-07-18 Publication of FR2317821B1 publication Critical patent/FR2317821B1/fr

Status Granted legal-status Critical Current

Links

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/62—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
- H04B1/64—Volume compression or expansion arrangements
- 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

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Multimedia (AREA)
Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Recording Or Reproducing By Magnetic Means (AREA)

FR7619619A 1975-06-28 1976-06-28 Dispositif de compression ou d'extension automatique Granted FR2317821A2 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE2529012A DE2529012C3 (de)	1975-06-28	1975-06-28	Schaltung zur automatischen Dynamik-Kompression oder -Expansion

Publications (2)

Publication Number	Publication Date
FR2317821A2 true FR2317821A2 (fr)	1977-02-04
FR2317821B1 FR2317821B1 (fr)	1980-07-18

Family

ID=5950233

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR7619619A Granted FR2317821A2 (fr)	1975-06-28	1976-06-28	Dispositif de compression ou d'extension automatique

Country Status (11)

Country	Link
US (1)	US4035739A (fr)
JP (1)	JPS524755A (fr)
AT (1)	AT363125B (fr)
BE (1)	BE843495R (fr)
BR (1)	BR7604059A (fr)
DE (1)	DE2529012C3 (fr)
DK (1)	DK245076A (fr)
ES (1)	ES449247A2 (fr)
FR (1)	FR2317821A2 (fr)
GB (1)	GB1546394A (fr)
SE (1)	SE406138B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2458124A1 (fr) *	1979-05-29	1980-12-26	Sony Corp	Appareillage pour enregistrer un signal d'information sur un support d'enregistrement au moyen d'un dispositif d'enregistrement et comportant des moyens de commande de gain

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2030826A (en) *	1977-09-27	1980-04-10	Licentia Gmbh	Compression or expansion systems
DE2803751C2 (de) *	1978-01-28	1982-06-09	Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt	Schaltung zur automatischen Dynamik- Kompression oder -Expansion
US4210874A (en) *	1978-10-23	1980-07-01	Raytheon Company	Gain control amplifier circuit
DE2941961A1 (de) *	1979-10-17	1981-04-30	Krautkrämer GmbH, 5000 Köln	Verfahren zur signalspannungsabhaengigen veraenderung des verstaerkungsfaktors
US4337445A (en) *	1981-01-21	1982-06-29	Sony Corporation	Compander circuit which produces variable pre-emphasis and de-emphasis
FR2599580B1 (fr) *	1986-05-30	1988-09-23	Elison Sarl	Dispositif de reduction du bruit de fond dans une chaine electroacoustique.
US4782285A (en) *	1986-11-03	1988-11-01	Tektronix, Inc.	Variable resolution control system
US5518007A (en) *	1994-12-01	1996-05-21	Becker; Joseph H.	Electrode locator
US7800440B2 (en) *	2007-08-31	2010-09-21	Analog Devices, Inc.	Variable automatic limit control (ALC) threshold for any desired compression curve
US8284971B2 (en) *	2008-11-21	2012-10-09	Envoy Medical Corporation	Logarithmic compression systems and methods for hearing amplification

Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1137340A (fr) *	1954-06-15	1957-05-27	Philips Nv	Dispositif pour l'expansion de signaux
US3737678A (en) *	1970-01-23	1973-06-05	Dolby Laboratories Inc	Limiters for noise reduction systems

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2109336A5 (fr) *	1970-10-13	1972-05-26	Thomson Csf

1975
- 1975-06-28 DE DE2529012A patent/DE2529012C3/de not_active Expired
1976
- 1976-05-28 GB GB22189/76A patent/GB1546394A/en not_active Expired
- 1976-06-03 DK DK245076A patent/DK245076A/da unknown
- 1976-06-15 US US05/696,422 patent/US4035739A/en not_active Expired - Lifetime
- 1976-06-22 AT AT0454076A patent/AT363125B/de not_active IP Right Cessation
- 1976-06-23 BR BR7604059A patent/BR7604059A/pt unknown
- 1976-06-23 SE SE7607248A patent/SE406138B/xx unknown
- 1976-06-23 JP JP51074270A patent/JPS524755A/ja active Pending
- 1976-06-25 ES ES449247A patent/ES449247A2/es not_active Expired
- 1976-06-28 BE BE168380A patent/BE843495R/fr active
- 1976-06-28 FR FR7619619A patent/FR2317821A2/fr active Granted

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1137340A (fr) *	1954-06-15	1957-05-27	Philips Nv	Dispositif pour l'expansion de signaux
US3737678A (en) *	1970-01-23	1973-06-05	Dolby Laboratories Inc	Limiters for noise reduction systems

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/75 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2458124A1 (fr) *	1979-05-29	1980-12-26	Sony Corp	Appareillage pour enregistrer un signal d'information sur un support d'enregistrement au moyen d'un dispositif d'enregistrement et comportant des moyens de commande de gain

Also Published As

Publication number	Publication date
DE2529012C3 (de)	1980-07-03
DE2529012B2 (de)	1979-10-04
AU1450876A (en)	1977-12-08
SE7607248L (sv)	1976-12-29
DK245076A (da)	1976-12-29
FR2317821B1 (fr)	1980-07-18
US4035739A (en)	1977-07-12
GB1546394A (en)	1979-05-23
JPS524755A (en)	1977-01-14
ATA454076A (de)	1980-12-15
AT363125B (de)	1981-07-10
BR7604059A (pt)	1977-07-05
SE406138B (sv)	1979-01-22
DE2529012A1 (de)	1977-01-20
ES449247A2 (es)	1977-08-16
BE843495R (fr)	1976-10-18

Legal Events

Date	Code	Title	Description
1984-04-20	ST	Notification of lapse

Publication	Publication Date	Title
FR2299968A1 (fr)	1976-09-03	Dispositif d'
FR2302646A1 (fr)	1976-09-24	Dispositif pour la le
FR2350110A1 (fr)	1977-12-02	Dispositif de catheterisme
BE847598A (fr)	1977-02-14	Dispositif collecteur d'echantillons,
FR2320442A1 (fr)	1977-03-04	Dispositif d'asservissement
FR2303752A1 (fr)	1976-10-08	Dispositif d'elevation
FR2301851A1 (fr)	1976-09-17	Dispositif de traitem
BE840815A (fr)	1976-10-15	Dispositif d'echantillonnage
FR2441147B1 (fr)	1987-04-30	Dispositif de determination de position
BE862959A (fr)	1978-05-16	Dispositif d'etancheite
FR2334870A1 (fr)	1977-07-08	Dispositif de raccordement
FR2348847A1 (fr)	1977-11-18	Dispositif d'ancrage automatique
FR2298966A1 (fr)	1976-08-27	Dispositif d'eplucha
FR2302555A1 (fr)	1976-09-24	Dispositif de
BE882132A (fr)	1980-07-01	Dispositif anti-enchainement
FR2317821A2 (fr)	1977-02-04	Dispositif de compression ou d'extension automatique
FR2302532A1 (fr)	1976-09-24	Dispositif d'ecartometrie
FR2307090A1 (fr)	1976-11-05	Dispositif de construction
FR2311316A1 (fr)	1976-12-10	Dispositif d'echantillonnage geometrique
FR2320219A1 (fr)	1977-03-04	Dispositif d'attelage de semi-remorque
FR2313789A1 (fr)	1976-12-31	Dispositif de suspension d'un cable
BE856111A (fr)	1977-12-27	Dispositif d'etancheite
BE824554A (fr)	1975-05-15	Dispositif de compression ou d'extension automatique
FR2319825A1 (fr)	1977-02-25	Dispositif d'etanchement
FR2302533A1 (fr)	1976-09-24	Dispositif d'ecartometrie

FR2317821A2 - Dispositif de compression ou d'extension automatique - Google Patents

Info

Links

Classifications

Landscapes

Applications Claiming Priority (1)

Publications (2)

Family

ID=5950233

Family Applications (1)

Country Status (11)

Cited By (1)

Families Citing this family (10)

Citations (2)

Family Cites Families (1)

Patent Citations (2)

Non-Patent Citations (1)

Cited By (1)

Also Published As

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Legal Events