DK282981A - Kredsloeb til modifikation af dynamikomraade - Google Patents

Kredsloeb til modifikation af dynamikomraade

Info

Publication number: DK282981A
Authority: DK; Denmark
Prior art keywords: modification; circuit; dynamic area; dynamic; area
Prior art date: 1980-06-30

Application number

DK282981A

Other languages

English (en)

Other versions

DK168806B1 (da

Inventor

R M Dolby

Original Assignee

Dolby Ray Milton

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.)

1980-06-30

Filing date

1981-06-26

Publication date

1981-12-31

1981-06-26 Application filed by Dolby Ray Milton filed Critical Dolby Ray Milton

1981-12-31 Publication of DK282981A publication Critical patent/DK282981A/da

1994-06-13 Application granted granted Critical

1994-06-13 Publication of DK168806B1 publication Critical patent/DK168806B1/da

Links

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G7/00—Volume compression or expansion in amplifiers
- 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

DK282981A 1980-06-30 1981-06-26 Kredsløbsarrangement til modifikation af dynamikområde DK168806B1 (da)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date
US16395080A	1980-06-30	1980-06-30
US16395080		1980-06-30
US18077180A	1980-08-22	1980-08-22
US18077180		1980-08-22

Publications (2)

Publication Number	Publication Date
DK282981A true DK282981A (da)	1981-12-31
DK168806B1 DK168806B1 (da)	1994-06-13

Family

ID=26860115

Family Applications (3)

Application Number	Title	Priority Date	Filing Date
DK282981A DK168806B1 (da)	1980-06-30	1981-06-26	Kredsløbsarrangement til modifikation af dynamikområde
DK282881A DK172325B1 (da)	1980-06-30	1981-06-26	Signalkompressor og signalekspander til brug i et transmissionssystem
DK282581A DK156356C (da)	1980-06-30	1981-06-26	Kredsloeb til reduktion af overbelastningseffekter i signalindspilnings-og transmissionssystemer

Family Applications After (2)

Application Number	Title	Priority Date	Filing Date
DK282881A DK172325B1 (da)	1980-06-30	1981-06-26	Signalkompressor og signalekspander til brug i et transmissionssystem
DK282581A DK156356C (da)	1980-06-30	1981-06-26	Kredsloeb til reduktion af overbelastningseffekter i signalindspilnings-og transmissionssystemer

Country Status (17)

Country	Link
KR (4)	KR880000106B1 (da)
AT (3)	AT372796B (da)
AU (3)	AU545125B2 (da)
BR (3)	BR8104158A (da)
CH (3)	CH654703A5 (da)
DE (3)	DE3125788A1 (da)
DK (3)	DK168806B1 (da)
ES (3)	ES503497A0 (da)
FI (3)	FI74368C (da)
GB (3)	GB2079112B (da)
HK (3)	HK28285A (da)
IT (3)	IT1137985B (da)
MY (3)	MY8501147A (da)
NL (3)	NL190214C (da)
NO (3)	NO157400C (da)
SE (3)	SE447525B (da)
SG (3)	SG4385G (da)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4736433A (en) *	1985-06-17	1988-04-05	Dolby Ray Milton	Circuit arrangements for modifying dynamic range using action substitution and superposition techniques
US4815068A (en) *	1987-08-07	1989-03-21	Dolby Ray Milton	Audio encoder for use with more than one decoder each having different characteristics
US5651028A (en) *	1995-05-09	1997-07-22	Unisys Corporation	Data transmission system with a low peak-to-average power ratio based on distorting frequently occuring signals
US5793797A (en) *	1995-05-09	1998-08-11	Unisys Corporation	Data transmisson system with a low peak-to-average power ratio based on distorting small amplitude signals
DE10011193B4 (de) *	2000-03-08	2004-02-05	Sennheiser Electronic Gmbh & Co. Kg	Kompandersystem mit einer Kompressorschaltung und einer Expanderschaltung

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US28426A (en) *		1860-05-22		Shortening tires
US2558002A (en) *	1939-10-24	1951-06-26	Int Standard Electric Corp	Volume compression system
US3022473A (en) *	1959-08-18	1962-02-20	Bell Telephone Labor Inc	Signal recovery circuits
US3903485A (en) *	1968-01-10	1975-09-02	Ray Milton Dolby	Compressors, expanders and noise reduction systems
GB1253031A (da) *	1968-01-10	1971-11-10
US3846719A (en) *	1973-09-13	1974-11-05	Dolby Laboratories Inc	Noise reduction systems
USRE28426E (en) *	1968-11-01	1975-05-20		Signal compressors and expanders
US3757254A (en) *	1970-06-05	1973-09-04	Victor Co Ltd	N system noise reduction system and apparatus using a compression and expansio
GB1390341A (en) *	1971-03-12	1975-04-09	Dolby Laboratories Inc	Signal compressors and expanders
GB1367002A (en) *	1971-04-06	1974-09-18	Victor Company Of Japan	Compression and/or expansion system and circuit
US3875537A (en) *	1972-05-02	1975-04-01	Dolby Laboratories Inc	Circuits for modifying the dynamic range of an input signal
GB1432763A (en) *	1972-05-02	1976-04-22	Dolby Laboratories Inc	Compressors expanders and noise reduction systems
US3934190A (en) *	1972-09-15	1976-01-20	Dolby Laboratories, Inc.	Signal compressors and expanders
CA1000617A (en) *	1973-05-17	1976-11-30	Ray M. Dolby	Compressors, expanders and noise reduction systems
US3971405A (en) *	1974-07-15	1976-07-27	Parker-Hannifin Corporation	Pressure controlled hydrant valve coupler
US3930208A (en) *	1974-08-29	1975-12-30	Northern Electric Co	A-C signal processing circuits for compandors
US3902131A (en) *	1974-09-06	1975-08-26	Quadracast Systems	Tandem audio dynamic range expander
JPS51127608A (en) *	1975-04-30	1976-11-06	Victor Co Of Japan Ltd	Signal transmitting unit
US4061874A (en) *	1976-06-03	1977-12-06	Fricke J P	System for reproducing sound information
DE2803751C2 (de) *	1978-01-28	1982-06-09	Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt	Schaltung zur automatischen Dynamik- Kompression oder -Expansion
JPS5552971A (en) *	1978-10-16	1980-04-17	Mitsubishi Electric Corp	Simulator for radar indicator

1981
- 1981-06-26 DK DK282981A patent/DK168806B1/da not_active IP Right Cessation
- 1981-06-26 DK DK282881A patent/DK172325B1/da not_active IP Right Cessation
- 1981-06-26 DK DK282581A patent/DK156356C/da not_active IP Right Cessation
- 1981-06-29 GB GB8119972A patent/GB2079112B/en not_active Expired
- 1981-06-29 ES ES503497A patent/ES503497A0/es active Granted
- 1981-06-29 SE SE8104063A patent/SE447525B/sv not_active IP Right Cessation
- 1981-06-29 GB GB8119973A patent/GB2079113B/en not_active Expired
- 1981-06-29 SE SE8104061A patent/SE447524B/sv not_active IP Right Cessation
- 1981-06-29 ES ES503496A patent/ES503496A0/es active Granted
- 1981-06-29 NO NO812218A patent/NO157400C/no not_active IP Right Cessation
- 1981-06-29 NL NLAANVRAGE8103122,A patent/NL190214C/xx not_active IP Right Cessation
- 1981-06-29 NL NLAANVRAGE8103124,A patent/NL189988C/xx not_active IP Right Cessation
- 1981-06-29 FI FI812024A patent/FI74368C/fi not_active IP Right Cessation
- 1981-06-29 FI FI812026A patent/FI76456C/fi not_active IP Right Cessation
- 1981-06-29 NO NO812216A patent/NO157398C/no not_active IP Right Cessation
- 1981-06-29 NO NO812217A patent/NO157399C/no not_active IP Right Cessation
- 1981-06-29 FI FI812025A patent/FI79428C/fi not_active IP Right Cessation
- 1981-06-29 SE SE8104062A patent/SE450985B/sv not_active IP Right Cessation
- 1981-06-29 ES ES503493A patent/ES8300233A1/es not_active Expired
- 1981-06-29 NL NL8103123A patent/NL192652C/nl not_active IP Right Cessation
- 1981-06-29 GB GB8119974A patent/GB2079114B/en not_active Expired
- 1981-06-30 DE DE19813125788 patent/DE3125788A1/de active Granted
- 1981-06-30 CH CH4293/81A patent/CH654703A5/de not_active IP Right Cessation
- 1981-06-30 KR KR1019810002351A patent/KR880000106B1/ko active
- 1981-06-30 BR BR8104158A patent/BR8104158A/pt not_active IP Right Cessation
- 1981-06-30 KR KR1019810002350A patent/KR880000105B1/ko active
- 1981-06-30 AT AT0291581A patent/AT372796B/de not_active IP Right Cessation
- 1981-06-30 AU AU72394/81A patent/AU545125B2/en not_active Expired
- 1981-06-30 KR KR1019810002352A patent/KR840002491B1/ko active
- 1981-06-30 BR BR8104156A patent/BR8104156A/pt not_active IP Right Cessation
- 1981-06-30 AT AT0291681A patent/AT386911B/de not_active IP Right Cessation
- 1981-06-30 CH CH4294/81A patent/CH660653A5/de not_active IP Right Cessation
- 1981-06-30 IT IT22650/81A patent/IT1137985B/it active
- 1981-06-30 AU AU72393/81A patent/AU544888B2/en not_active Expired
- 1981-06-30 IT IT22652/81A patent/IT1137987B/it active
- 1981-06-30 AT AT0291481A patent/AT386304B/de not_active IP Right Cessation
- 1981-06-30 AU AU72365/81A patent/AU546641B2/en not_active Expired
- 1981-06-30 IT IT22651/81A patent/IT1137986B/it active
- 1981-06-30 BR BR8104157A patent/BR8104157A/pt not_active IP Right Cessation
- 1981-06-30 DE DE19813125790 patent/DE3125790A1/de active Granted
- 1981-06-30 CH CH4292/81A patent/CH662684A5/de not_active IP Right Cessation
- 1981-06-30 DE DE3125789A patent/DE3125789C2/de not_active Expired
1984
- 1984-09-19 KR KR1019840005735A patent/KR840002492B1/ko not_active IP Right Cessation
1985
- 1985-01-16 SG SG43/85A patent/SG4385G/en unknown
- 1985-01-16 SG SG45/85A patent/SG4585G/en unknown
- 1985-01-16 SG SG42/85A patent/SG4285G/en unknown
- 1985-04-04 HK HK282/85A patent/HK28285A/xx not_active IP Right Cessation
- 1985-04-04 HK HK284/85A patent/HK28485A/xx not_active IP Right Cessation
- 1985-04-04 HK HK283/85A patent/HK28385A/xx not_active IP Right Cessation
- 1985-12-30 MY MY1147/85A patent/MY8501147A/xx unknown
- 1985-12-30 MY MY1149/85A patent/MY8501149A/xx unknown
- 1985-12-30 MY MY1148/85A patent/MY8501148A/xx unknown

Also Published As

Publication number	Publication date
NO157399B (no)	1987-11-30
IT1137987B (it)	1986-09-10
SE447525B (sv)	1986-11-17
BR8104158A (pt)	1982-03-16
NL8103122A (nl)	1982-01-18
SE8104062L (sv)	1981-12-31
IT8122652A0 (it)	1981-06-30
ATA291481A (de)	1987-12-15
KR840002492B1 (ko)	1984-12-31
MY8501147A (en)	1985-12-31
SE447524B (sv)	1986-11-17
GB2079114A (en)	1982-01-13
AT386911B (de)	1988-11-10
DE3125788C2 (da)	1992-06-11
GB2079113A (en)	1982-01-13
DK172325B1 (da)	1998-03-16
NL189988C (nl)	1993-09-16
DE3125789A1 (de)	1982-05-19
NO157398B (no)	1987-11-30
DE3125790A1 (de)	1982-05-13
GB2079112B (en)	1984-10-03
NL190214B (nl)	1993-07-01
NO157399C (no)	1988-03-09
AT386304B (de)	1988-08-10
GB2079114B (en)	1984-10-03
DK168806B1 (da)	1994-06-13
FI812024L (fi)	1981-12-31
AU7239481A (en)	1982-01-07
FI74368C (fi)	1988-01-11
BR8104157A (pt)	1982-03-16
HK28385A (en)	1985-04-12
ES8301084A1 (es)	1982-11-01
ATA291581A (de)	1983-03-15
KR830006992A (ko)	1983-10-12
SE8104061L (sv)	1981-12-31
SG4585G (en)	1985-06-14
AU545125B2 (en)	1985-07-04
SG4385G (en)	1985-06-14
BR8104156A (pt)	1982-03-16
SE8104063L (sv)	1981-12-31
FI79428B (fi)	1989-08-31
NL192652B (nl)	1997-07-01
MY8501148A (en)	1985-12-31
DK156356B (da)	1989-08-07
CH662684A5 (de)	1987-10-15
ES8204255A1 (es)	1982-04-16
SE450985B (sv)	1987-09-07
IT1137985B (it)	1986-09-10
NL192652C (nl)	1997-11-04
FI812026L (fi)	1981-12-31
CH654703A5 (de)	1986-02-28
IT8122651A0 (it)	1981-06-30
DK282581A (da)	1981-12-31
FI74368B (fi)	1987-09-30
DE3125788A1 (de)	1982-05-13
MY8501149A (en)	1985-12-31
KR880000105B1 (ko)	1988-02-23
NL8103123A (nl)	1982-01-18
KR880000106B1 (ko)	1988-02-23
NO812218L (no)	1982-01-04
GB2079113B (en)	1984-10-03
DE3125789C2 (de)	1984-01-12
NL189988B (nl)	1993-04-16
NL190214C (nl)	1993-12-01
KR830006993A (ko)	1983-10-12
KR840002491B1 (ko)	1984-12-31
ATA291681A (de)	1988-03-15
AU546641B2 (en)	1985-09-12
ES503496A0 (es)	1982-04-16
DK282881A (da)	1981-12-31
HK28285A (en)	1985-04-12
GB2079112A (en)	1982-01-13
AU7236581A (en)	1982-01-07
DK156356C (da)	1989-12-27
NO157400B (no)	1987-11-30
HK28485A (en)	1985-04-12
CH660653A5 (de)	1987-05-15
FI812025L (fi)	1981-12-31
AU544888B2 (en)	1985-06-20
FI76456B (fi)	1988-06-30
ES503497A0 (es)	1982-11-01
ES503493A0 (es)	1982-10-01
NO157398C (no)	1988-03-09
NO812216L (no)	1982-01-04
NL8103124A (nl)	1982-01-18
AT372796B (de)	1983-11-10
FI79428C (fi)	1989-12-11
ES8300233A1 (es)	1982-10-01
NO812217L (no)	1982-01-04
IT8122650A0 (it)	1981-06-30
IT1137986B (it)	1986-09-10
NO157400C (no)	1988-03-09
SG4285G (en)	1985-06-14
DE3125790C2 (da)	1992-11-12
AU7239381A (en)	1982-01-07
FI76456C (fi)	1988-10-10

Legal Events

Date	Code	Title	Description
1994-06-13	B1	Patent granted (law 1993)
2001-07-09	PUP	Patent expired

Publication	Publication Date	Title
DK260183D0 (da)	1983-06-06	Fremgangsmade til fremstilling af indolderivater
DK281686D0 (da)	1986-06-16	Kredsloebsarrangement til modifikation af dynamikomraade
DK319281A (da)	1982-01-18	Femgangsmaade til fremstilling af benzisoselenazoloner
DK354281A (da)	1982-02-13	Fremgangsmaade til geninkorporering af kakaoaroma
DK582883A (da)	1984-06-18	Fremgangsmaade til fremstilling af modelis
FI813527L (fi)	1982-05-11	Foerbaettrade makrolidantibiotika
DK216681A (da)	1981-11-17	Fremgangsmaade til fremstilling af antitumormidler
DK364481A (da)	1982-02-19	Fremgangsmaade til fremstilling af caprylolactamer
DK46781A (da)	1981-08-08	Fremgangsmaade til fremstilling af antirhinovirusmidler
DK282981A (da)	1981-12-31	Kredsloeb til modifikation af dynamikomraade
DK103081A (da)	1981-09-11	Forstaerkerkreds
DK296281A (da)	1982-01-05	Fremgangsmaade til fremstilling af aminocyklopentanonamider
DK96881A (da)	1981-09-06	Fremgangsmaade til fremstilling af et angiotensinomdannende enzym
DK579181A (da)	1982-06-30	Fremgangsmaade til fremstilling af diarylthiophener
DK575681A (da)	1983-06-02	Kredsloebsarrangement til modifikation af dynamikomraade
DK153841C (da)	1989-02-20	Fremgangsmaade til fremstilling af ranitidin
DK12581A (da)	1981-07-18	Fremgangsmaade til fremstilling af kijanimicin
DK548081A (da)	1982-06-12	Fremgangsmaade til fremstilling af buspiron
BR8105337A (pt)	1982-05-04	Disposicao de contatos
DK5283D0 (da)	1983-01-07	Kredsloeb til frembringelse af en af en vekselspaending afhaengig styrespaending
DK296883D0 (da)	1983-06-28	Fremgangsmade til fremstilling af eburnanoximaetere
DK151796C (da)	1988-09-19	Fremgangsmaade til fremstilling af cyclopentenoloner
DK416681A (da)	1982-03-27	Femgangsmaade til fremstilling af cephemforbindelser
DK489281A (da)	1982-05-06	Fremgangsmaade til fremstilling af penicilliner
DK265485A (da)	1985-12-16	Taendkredsloeb til en effekttyristor