NO812217L - SIGNAL COMPRESSOR FOR USE IN A SIGNAL TRANSMISSION SYSTEM - Google Patents

SIGNAL COMPRESSOR FOR USE IN A SIGNAL TRANSMISSION SYSTEM

Info

Publication number: NO812217L
Authority: NO; Norway
Prior art keywords: signal; transmission system; compressor; signal transmission; signal compressor
Prior art date: 1980-06-30

Application number

NO812217A

Other languages

Norwegian (no)

Other versions

NO157399C (en

NO157399B (en

Inventor

Ray Milton Dolby

Original Assignee

Ray Milton Dolby

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

1981-06-29

Publication date

1982-01-04

1981-06-29 Application filed by Ray Milton Dolby filed Critical Ray Milton Dolby

1982-01-04 Publication of NO812217L publication Critical patent/NO812217L/en

1987-11-30 Publication of NO157399B publication Critical patent/NO157399B/en

1988-03-09 Publication of NO157399C publication Critical patent/NO157399C/en

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

NO812217A 1980-06-30 1981-06-29 SIGNAL COMPRESSOR AND CONNECTING SIGNAL EXPANDS FOR USE IN ETSIGNAL TRANSMISSION SYSTEM. NO157399C (en)

Applications Claiming Priority (2)

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

Publications (3)

Publication Number	Publication Date
NO812217L true NO812217L (en)	1982-01-04
NO157399B NO157399B (en)	1987-11-30
NO157399C NO157399C (en)	1988-03-09

Family

ID=26860115

Family Applications (3)

Application Number	Title	Priority Date	Filing Date
NO812217A NO157399C (en)	1980-06-30	1981-06-29	SIGNAL COMPRESSOR AND CONNECTING SIGNAL EXPANDS FOR USE IN ETSIGNAL TRANSMISSION SYSTEM.
NO812218A NO157400C (en)	1980-06-30	1981-06-29	CONNECTOR FOR MODIFICATION OF THE DYNAMICS AREA OF AN INPUT SIGNAL.
NO812216A NO157398C (en)	1980-06-30	1981-06-29	CLUTCH DEVICE FOR REDUCING MEDIA OVERLOAD EFFECTS ISIGNAL RECORDING AND SIGNAL TRANSFER SYSTEMS

Family Applications After (2)

Application Number	Title	Priority Date	Filing Date
NO812218A NO157400C (en)	1980-06-30	1981-06-29	CONNECTOR FOR MODIFICATION OF THE DYNAMICS AREA OF AN INPUT SIGNAL.
NO812216A NO157398C (en)	1980-06-30	1981-06-29	CLUTCH DEVICE FOR REDUCING MEDIA OVERLOAD EFFECTS ISIGNAL RECORDING AND SIGNAL TRANSFER SYSTEMS

Country Status (17)

Country	Link
KR (4)	KR880000105B1 (en)
AT (3)	AT372796B (en)
AU (3)	AU544888B2 (en)
BR (3)	BR8104157A (en)
CH (3)	CH662684A5 (en)
DE (3)	DE3125789C2 (en)
DK (3)	DK156356C (en)
ES (3)	ES503493A0 (en)
FI (3)	FI76456C (en)
GB (3)	GB2079113B (en)
HK (3)	HK28285A (en)
IT (3)	IT1137985B (en)
MY (3)	MY8501147A (en)
NL (3)	NL189988C (en)
NO (3)	NO157399C (en)
SE (3)	SE447525B (en)
SG (3)	SG4385G (en)

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 (en) *	2000-03-08	2004-02-05	Sennheiser Electronic Gmbh & Co. Kg	Compander system with a compressor circuit and an expander circuit

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
US3846719A (en) *	1973-09-13	1974-11-05	Dolby Laboratories Inc	Noise reduction systems
GB1253031A (en) *	1968-01-10	1971-11-10
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
US3795876A (en) *	1971-04-06	1974-03-05	Victor Company Of Japan	Compression and/or expansion system and circuit
GB1432763A (en) *	1972-05-02	1976-04-22	Dolby Laboratories Inc	Compressors expanders and noise reduction systems
US3875537A (en) *	1972-05-02	1975-04-01	Dolby Laboratories Inc	Circuits for modifying the dynamic range of an input signal
US3934190A (en) *	1972-09-15	1976-01-20	Dolby Laboratories, Inc.	Signal compressors and expanders
US3909733A (en) *	1973-05-17	1975-09-30	Dolby Laboratories Inc	Dynamic range modifying circuits utilizing variable negative resistance
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 (en) *	1978-01-28	1982-06-09	Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt	Circuit for automatic dynamic compression or expansion
JPS5552971A (en) *	1978-10-16	1980-04-17	Mitsubishi Electric Corp	Simulator for radar indicator

1981
- 1981-06-26 DK DK282581A patent/DK156356C/en not_active IP Right Cessation
- 1981-06-26 DK DK282981A patent/DK168806B1/en not_active IP Right Cessation
- 1981-06-26 DK DK282881A patent/DK172325B1/en not_active IP Right Cessation
- 1981-06-29 ES ES503493A patent/ES503493A0/en active Granted
- 1981-06-29 NL NLAANVRAGE8103124,A patent/NL189988C/en not_active IP Right Cessation
- 1981-06-29 NO NO812217A patent/NO157399C/en not_active IP Right Cessation
- 1981-06-29 FI FI812026A patent/FI76456C/en not_active IP Right Cessation
- 1981-06-29 ES ES503496A patent/ES8204255A1/en not_active Expired
- 1981-06-29 SE SE8104063A patent/SE447525B/en not_active IP Right Cessation
- 1981-06-29 NL NLAANVRAGE8103122,A patent/NL190214C/en not_active IP Right Cessation
- 1981-06-29 SE SE8104061A patent/SE447524B/en not_active IP Right Cessation
- 1981-06-29 ES ES503497A patent/ES8301084A1/en not_active Expired
- 1981-06-29 NO NO812218A patent/NO157400C/en not_active IP Right Cessation
- 1981-06-29 GB GB8119973A patent/GB2079113B/en not_active Expired
- 1981-06-29 SE SE8104062A patent/SE450985B/en not_active IP Right Cessation
- 1981-06-29 NL NL8103123A patent/NL192652C/en not_active IP Right Cessation
- 1981-06-29 GB GB8119972A patent/GB2079112B/en not_active Expired
- 1981-06-29 GB GB8119974A patent/GB2079114B/en not_active Expired
- 1981-06-29 FI FI812025A patent/FI79428C/en not_active IP Right Cessation
- 1981-06-29 NO NO812216A patent/NO157398C/en not_active IP Right Cessation
- 1981-06-29 FI FI812024A patent/FI74368C/en not_active IP Right Cessation
- 1981-06-30 IT IT22650/81A patent/IT1137985B/en active
- 1981-06-30 AT AT0291581A patent/AT372796B/en not_active IP Right Cessation
- 1981-06-30 IT IT22651/81A patent/IT1137986B/en active
- 1981-06-30 BR BR8104157A patent/BR8104157A/en not_active IP Right Cessation
- 1981-06-30 DE DE3125789A patent/DE3125789C2/en not_active Expired
- 1981-06-30 AU AU72393/81A patent/AU544888B2/en not_active Expired
- 1981-06-30 KR KR1019810002350A patent/KR880000105B1/en not_active Expired
- 1981-06-30 DE DE19813125788 patent/DE3125788A1/en active Granted
- 1981-06-30 AU AU72394/81A patent/AU545125B2/en not_active Expired
- 1981-06-30 CH CH4292/81A patent/CH662684A5/en not_active IP Right Cessation
- 1981-06-30 KR KR1019810002351A patent/KR880000106B1/en not_active Expired
- 1981-06-30 CH CH4294/81A patent/CH660653A5/en not_active IP Right Cessation
- 1981-06-30 KR KR1019810002352A patent/KR840002491B1/en not_active Expired
- 1981-06-30 AU AU72365/81A patent/AU546641B2/en not_active Expired
- 1981-06-30 CH CH4293/81A patent/CH654703A5/en not_active IP Right Cessation
- 1981-06-30 DE DE19813125790 patent/DE3125790A1/en active Granted
- 1981-06-30 AT AT0291481A patent/AT386304B/en not_active IP Right Cessation
- 1981-06-30 AT AT0291681A patent/AT386911B/en not_active IP Right Cessation
- 1981-06-30 BR BR8104156A patent/BR8104156A/en not_active IP Right Cessation
- 1981-06-30 BR BR8104158A patent/BR8104158A/en not_active IP Right Cessation
- 1981-06-30 IT IT22652/81A patent/IT1137987B/en active
1984
- 1984-09-19 KR KR1019840005735A patent/KR840002492B1/en not_active Expired
1985
- 1985-01-16 SG SG43/85A patent/SG4385G/en unknown
- 1985-01-16 SG SG42/85A patent/SG4285G/en unknown
- 1985-01-16 SG SG45/85A patent/SG4585G/en unknown
- 1985-04-04 HK HK282/85A patent/HK28285A/en not_active IP Right Cessation
- 1985-04-04 HK HK283/85A patent/HK28385A/en not_active IP Right Cessation
- 1985-04-04 HK HK284/85A patent/HK28485A/en not_active IP Right Cessation
- 1985-12-30 MY MY1147/85A patent/MY8501147A/en unknown
- 1985-12-30 MY MY1149/85A patent/MY8501149A/en unknown
- 1985-12-30 MY MY1148/85A patent/MY8501148A/en unknown

Also Published As

Publication number	Publication date
ES503497A0 (en)	1982-11-01
AU7236581A (en)	1982-01-07
FI812026L (en)	1981-12-31
NO157398B (en)	1987-11-30
DE3125788C2 (en)	1992-06-11
CH662684A5 (en)	1987-10-15
KR880000105B1 (en)	1988-02-23
KR830006992A (en)	1983-10-12
DK282581A (en)	1981-12-31
FI79428C (en)	1989-12-11
ES503496A0 (en)	1982-04-16
FI74368C (en)	1988-01-11
KR840002492B1 (en)	1984-12-31
SG4385G (en)	1985-06-14
FI812024L (en)	1981-12-31
DE3125789A1 (en)	1982-05-19
GB2079114B (en)	1984-10-03
AT386304B (en)	1988-08-10
AT372796B (en)	1983-11-10
FI812025L (en)	1981-12-31
IT8122652A0 (en)	1981-06-30
DE3125789C2 (en)	1984-01-12
NL189988C (en)	1993-09-16
ES8300233A1 (en)	1982-10-01
CH660653A5 (en)	1987-05-15
KR830006993A (en)	1983-10-12
MY8501147A (en)	1985-12-31
SG4285G (en)	1985-06-14
IT1137987B (en)	1986-09-10
NL8103122A (en)	1982-01-18
BR8104157A (en)	1982-03-16
AU545125B2 (en)	1985-07-04
SE447524B (en)	1986-11-17
IT8122651A0 (en)	1981-06-30
ATA291481A (en)	1987-12-15
GB2079113A (en)	1982-01-13
MY8501149A (en)	1985-12-31
AU7239481A (en)	1982-01-07
FI76456C (en)	1988-10-10
ATA291681A (en)	1988-03-15
GB2079114A (en)	1982-01-13
DK156356B (en)	1989-08-07
HK28385A (en)	1985-04-12
DK282881A (en)	1981-12-31
HK28285A (en)	1985-04-12
SE8104061L (en)	1981-12-31
DK282981A (en)	1981-12-31
ES503493A0 (en)	1982-10-01
NL189988B (en)	1993-04-16
GB2079112B (en)	1984-10-03
NO157399C (en)	1988-03-09
IT1137985B (en)	1986-09-10
KR880000106B1 (en)	1988-02-23
NL8103124A (en)	1982-01-18
NL190214B (en)	1993-07-01
NL190214C (en)	1993-12-01
AU546641B2 (en)	1985-09-12
DK168806B1 (en)	1994-06-13
ATA291581A (en)	1983-03-15
DE3125788A1 (en)	1982-05-13
NL192652C (en)	1997-11-04
NO157400B (en)	1987-11-30
DK156356C (en)	1989-12-27
KR840002491B1 (en)	1984-12-31
FI79428B (en)	1989-08-31
GB2079112A (en)	1982-01-13
SE450985B (en)	1987-09-07
NL8103123A (en)	1982-01-18
HK28485A (en)	1985-04-12
AU7239381A (en)	1982-01-07
FI74368B (en)	1987-09-30
BR8104158A (en)	1982-03-16
NO812216L (en)	1982-01-04
BR8104156A (en)	1982-03-16
NO812218L (en)	1982-01-04
GB2079113B (en)	1984-10-03
SE8104063L (en)	1981-12-31
NO157398C (en)	1988-03-09
ES8301084A1 (en)	1982-11-01
SG4585G (en)	1985-06-14
FI76456B (en)	1988-06-30
CH654703A5 (en)	1986-02-28
DE3125790C2 (en)	1992-11-12
SE8104062L (en)	1981-12-31
SE447525B (en)	1986-11-17
DE3125790A1 (en)	1982-05-13
MY8501148A (en)	1985-12-31
ES8204255A1 (en)	1982-04-16
AU544888B2 (en)	1985-06-20
NO157399B (en)	1987-11-30
DK172325B1 (en)	1998-03-16
NO157400C (en)	1988-03-09
AT386911B (en)	1988-11-10
IT8122650A0 (en)	1981-06-30
IT1137986B (en)	1986-09-10
NL192652B (en)	1997-07-01

Publication	Publication Date	Title
GB2078945B (en)	1984-07-25	Optical measurement system
IT1168405B (en)	1987-05-20	ADAPTER
FI810800L (en)	1981-09-22	FOERFARANDE OCH SYSTEM FOER EN KOMPRESSORMATAD FOERBRAENNINGSMOTORS KRAFTUTVECKLING
DK154645C (en)	1989-05-08	BIS-azolyl CONNECTION
FI803333L (en)	1982-04-25	SYSTEM FOER HYTTELEMENT I FARTYG
DK313085A (en)	1985-07-09	A DEVICE IN AN ALARM SYSTEM
NO821490L (en)	1982-05-05	CONNECTION
DE3176123D1 (en)	1987-05-27	ANTI-KIDS SYSTEM
DK93982A (en)	1982-03-04	ULTRA-monitoring system
GB2067747B (en)	1983-08-03	Displacement measuring system
BR8108022A (en)	1982-09-21	COUPLING
SE8402299D0 (en)	1984-04-26	SIGNAL TRANSMISSION SYSTEM
BR8103064A (en)	1982-02-09	ELECTROTIC INDICATION WITHOUT REFLECTION
ES505737A0 (en)	1982-08-16	IMPROVEMENTS IN A SIGNAL SYNCHRONIZER CIRCUIT
BR8107087A (en)	1982-01-05	TREE COUPLING
AT383687B (en)	1987-08-10	SPEED MEASURING SYSTEM
DK403781A (en)	1982-03-13	SIGNAL PROCESSING UNIT
NO812217L (en)	1982-01-04	SIGNAL COMPRESSOR FOR USE IN A SIGNAL TRANSMISSION SYSTEM
DK295381A (en)	1982-01-04	DATA TRANSMISSION SYSTEM
DE3266659D1 (en)	1985-11-07	Signal propagating device
SE8107532L (en)	1981-12-16	COOLING COOLING SYSTEM IN A TRANSMISSION
ATA315080A (en)	1981-12-15	IRRIGATION SYSTEM
FI814181L (en)	1981-12-28	quick coupling
DK165090C (en)	1993-02-15	PROCEDURE FOR TRANSMISSION IN A DIGITAL TRANSMISSION SYSTEM
FI801785A7 (en)	1981-12-04	SLOT COUPLING

Legal Events

Date	Code	Title	Description
2001-08-13	MK1K	Patent expired	Free format text: EXPIRED IN JUNE 2001