SE8107495L - Kretsanordning for modifiering av en insignals dynamikomrade - Google Patents

Kretsanordning for modifiering av en insignals dynamikomrade

Info

Publication number: SE8107495L
Authority: SE; Sweden
Prior art keywords: circuits; arrangements; signal; circuit; control signal
Prior art date: 1981-12-01

Application number

SE8107495A

Other languages

Unknown language ( )

English (en)

Other versions

SE449281B (sv

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.)

1981-12-01

Filing date

1981-12-15

Publication date

1983-06-02

1981-12-01 Priority claimed from US06/325,530 external-priority patent/US4498055A/en

1981-12-15 Application filed by Ray Milton Dolby filed Critical Ray Milton Dolby

1983-06-02 Publication of SE8107495L publication Critical patent/SE8107495L/sv

1987-04-13 Publication of SE449281B publication Critical patent/SE449281B/sv

Classifications

- 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
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G7/00—Volume compression or expansion in amplifiers
- H03G7/06—Volume compression or expansion in amplifiers having semiconductor devices
- H03G7/08—Volume compression or expansion in amplifiers having semiconductor devices incorporating negative feedback
- 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
- H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems

Landscapes

Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Ultra Sonic Daignosis Equipment (AREA)

SE8107495A 1981-12-01 1981-12-15 Kretsanordning for modifiering av en insignals dynamikomrade SE449281B (sv)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US06/325,530 US4498055A (en)	1981-09-10	1981-12-01	Circuit arrangements for modifying dynamic range

Publications (2)

Publication Number	Publication Date
SE8107495L true SE8107495L (sv)	1983-06-02
SE449281B SE449281B (sv)	1987-04-13

Family

ID=23268273

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE8107495A SE449281B (sv)	1981-12-01	1981-12-15	Kretsanordning for modifiering av en insignals dynamikomrade

Country Status (15)

Country	Link
KR (1)	KR900000483B1 (sv)
BE (1)	BE901906Q (sv)
CA (1)	CA1188996A (sv)
CH (1)	CH656996A5 (sv)
DE (1)	DE3151137A1 (sv)
DK (1)	DK575681A (sv)
ES (1)	ES508394A0 (sv)
FR (1)	FR2517496B1 (sv)
GB (1)	GB2111355B (sv)
GR (1)	GR77317B (sv)
IE (1)	IE52495B1 (sv)
IT (1)	IT1140402B (sv)
LU (1)	LU83854A1 (sv)
NL (1)	NL192860C (sv)
SE (1)	SE449281B (sv)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4922535A (en) *	1986-03-03	1990-05-01	Dolby Ray Milton	Transient control aspects of circuit arrangements for altering the dynamic range of audio signals
CA1269138A (en) *	1986-03-03	1990-05-15	Ray Milton Dolby	Attenuator circuit employing bootstrapping
KR960014115B1 (ko) *	1986-03-03	1996-10-14	밀톤 돌비 레이	부우트스트래핑(Bootstrapping)을 사용한 감쇄회로
GB2429779A (en) *	2005-09-01	2007-03-07	Geo Kingsbury Machine Tools Lt	Testing components of drive trains

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1120541A (en) *	1965-08-11	1968-07-17	Dolby Ray Milton	Improvements in noise reduction systems
US3665345A (en) *	1969-07-21	1972-05-23	Dolby Laboratories Inc	Compressors and expanders for noise reduction systems
US3795876A (en) *	1971-04-06	1974-03-05	Victor Company Of Japan	Compression and/or expansion system and circuit
US4101849A (en) *	1976-11-08	1978-07-18	Dbx, Inc.	Adaptive filter
BE889426A (fr) *	1980-06-30	1981-10-16	Dolby Ray Milton	Circuit de reduction des effets de la surcharge d'un support d'enregistrement ou de transmission de signaux

1981
- 1981-12-09 GB GB08137167A patent/GB2111355B/en not_active Expired
- 1981-12-11 CA CA000392068A patent/CA1188996A/en not_active Expired
- 1981-12-15 SE SE8107495A patent/SE449281B/sv not_active IP Right Cessation
- 1981-12-15 IE IE2951/81A patent/IE52495B1/en not_active IP Right Cessation
- 1981-12-19 KR KR1019810005016A patent/KR900000483B1/ko not_active Expired
- 1981-12-22 CH CH8223/81A patent/CH656996A5/de not_active IP Right Cessation
- 1981-12-22 NL NL8105775A patent/NL192860C/nl not_active IP Right Cessation
- 1981-12-23 DE DE19813151137 patent/DE3151137A1/de active Granted
- 1981-12-23 DK DK575681A patent/DK575681A/da not_active Application Discontinuation
- 1981-12-23 GR GR66897A patent/GR77317B/el unknown
- 1981-12-24 LU LU83854A patent/LU83854A1/fr unknown
- 1981-12-28 FR FR8124314A patent/FR2517496B1/fr not_active Expired
- 1981-12-29 IT IT25877/81A patent/IT1140402B/it active
- 1981-12-29 ES ES508394A patent/ES508394A0/es active Granted
1985
- 1985-03-08 BE BE0/214626A patent/BE901906Q/fr not_active IP Right Cessation

Also Published As

Publication number	Publication date
CA1188996A (en)	1985-06-18
FR2517496A1 (fr)	1983-06-03
CH656996A5 (de)	1986-07-31
SE449281B (sv)	1987-04-13
GB2111355B (en)	1985-02-13
GR77317B (sv)	1984-09-11
IT1140402B (it)	1986-09-24
BE901906Q (fr)	1985-07-01
FR2517496B1 (fr)	1985-11-15
NL192860B (nl)	1997-11-03
LU83854A1 (fr)	1982-05-07
KR900000483B1 (ko)	1990-01-30
NL8105775A (nl)	1983-07-01
GB2111355A (en)	1983-06-29
ES8303848A1 (es)	1983-02-01
NL192860C (nl)	1998-03-04
DE3151137C2 (sv)	1993-04-01
KR830008462A (ko)	1983-11-18
IE52495B1 (en)	1987-11-25
DE3151137A1 (de)	1983-07-14
IE812951L (en)	1983-06-01
DK575681A (da)	1983-06-02
ES508394A0 (es)	1983-02-01
IT8125877A0 (it)	1981-12-29

Publication	Publication Date	Title
JPS6387813A (ja)	1988-04-19	入力オ−ディオ周波数信号から直流制御信号を取出す方法及びその装置
EP0340974A3 (en)	1990-09-05	Active acoustic attenuation system with differential filtering
JPS5733834A (en)	1982-02-24	Frequency modulation noise reducing circuit
EP0106368B1 (en)	1986-08-13	Noise reduction circuit arrangement of solid-state video camera
SE8107495L (sv)	1983-06-02	Kretsanordning for modifiering av en insignals dynamikomrade
MY110937A (en)	1999-06-30	Luminance signal noise suppressor.
JPS5491006A (en)	1979-07-19	Audio recognition unit
JPS5746517A (en)	1982-03-17	Noise reduction circuit
KR830006993A (ko)	1983-10-12	변동 범위를 완화시키기 위한 회로장치
CA1177759A (en)	1984-11-13	Circuit arrangements for modifying dynamic range
JPS55150624A (en)	1980-11-22	Agc system of fm receiver
US5043676A (en)	1991-08-27	Automatic level control circuit
JPS60160731A (ja)	1985-08-22	受信機の相互変調妨害軽減器
KR960014115B1 (ko)	1996-10-14	부우트스트래핑(Bootstrapping)을 사용한 감쇄회로
JPS57155842A (en)	1982-09-27	Noise reduction circuit
SU690613A1 (ru)	1979-10-05	Управл емый фильтр
SU1042158A1 (ru)	1983-09-15	Динамический фильтр
JPS5486215A (en)	1979-07-09	Amplifier
JPS5443448A (en)	1979-04-06	Compressor
JPS54157018A (en)	1979-12-11	Fm receiver
JPS5644289A (en)	1981-04-23	Signal receiver
JPS5623010A (en)	1981-03-04	Gain limit amplifying circuit
CS264415B1 (cs)	1989-08-14	Adaptivnífiltr
JPS5520050A (en)	1980-02-13	Noise reduction circuit
JPS5481057A (en)	1979-06-28	Agc circuit

Legal Events

Date	Code	Title	Description
1995-01-31	NAL	Patent in force	Ref document number: 8107495-7 Format of ref document f/p: F
2002-02-05	NUG	Patent has lapsed	Ref document number: 8107495-7 Format of ref document f/p: F

Date

Code

Title

Description

1995-01-31

NAL

Patent in force

Ref document number: 8107495-7

Format of ref document f/p: F

2002-02-05

NUG

Patent has lapsed