GB2111355B - Improvements in circuit arrangements for modifying dynamic range - Google Patents

Improvements in circuit arrangements for modifying dynamic range

Info

Publication number: GB2111355B
Authority: GB; United Kingdom
Prior art keywords: dynamic range; circuit arrangements; modifying dynamic; modifying; arrangements
Prior art date: 1981-12-01
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.): Expired

Application number

GB08137167A

Other versions

GB2111355A (en

Inventor

Ray Milton Dolby

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.)

Individual

Original Assignee

Individual

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

1981-12-09

Publication date

1985-02-13

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

1981-12-09 Application filed by Individual filed Critical Individual

1983-06-29 Publication of GB2111355A publication Critical patent/GB2111355A/en

1985-02-13 Application granted granted Critical

1985-02-13 Publication of GB2111355B publication Critical patent/GB2111355B/en

Status Expired legal-status Critical Current

Links

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

GB08137167A 1981-12-01 1981-12-09 Improvements in circuit arrangements for modifying dynamic range Expired GB2111355B (en)

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
GB2111355A GB2111355A (en)	1983-06-29
GB2111355B true GB2111355B (en)	1985-02-13

Family

ID=23268273

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB08137167A Expired GB2111355B (en)	1981-12-01	1981-12-09	Improvements in circuit arrangements for modifying dynamic range

Country Status (15)

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

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
JP2764205B2 (en) *	1986-03-03	1998-06-11	レ−・ミルトン・ドルビ	Bootstrap signal attenuation circuit
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
GB1367002A (en) *	1971-04-06	1974-09-18	Victor Company Of Japan	Compression and/or expansion system and circuit
US4101849A (en) *	1976-11-08	1978-07-18	Dbx, Inc.	Adaptive filter
BE889426A (en) *	1980-06-30	1981-10-16	Dolby Ray Milton	CIRCUIT FOR REDUCING THE EFFECTS OF OVERLOADING OF A SIGNAL RECORDING OR TRANSMISSION MEDIUM

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

Also Published As

Publication number	Publication date
SE8107495L (en)	1983-06-02
KR830008462A (en)	1983-11-18
DE3151137A1 (en)	1983-07-14
IT8125877A0 (en)	1981-12-29
FR2517496B1 (en)	1985-11-15
CA1188996A (en)	1985-06-18
ES8303848A1 (en)	1983-02-01
DK575681A (en)	1983-06-02
NL192860C (en)	1998-03-04
GR77317B (en)	1984-09-11
NL192860B (en)	1997-11-03
CH656996A5 (en)	1986-07-31
LU83854A1 (en)	1982-05-07
NL8105775A (en)	1983-07-01
IE52495B1 (en)	1987-11-25
IT1140402B (en)	1986-09-24
SE449281B (en)	1987-04-13
FR2517496A1 (en)	1983-06-03
GB2111355A (en)	1983-06-29
IE812951L (en)	1983-06-01
ES508394A0 (en)	1983-02-01
DE3151137C2 (en)	1993-04-01
BE901906Q (en)	1985-07-01
KR900000483B1 (en)	1990-01-30

Legal Events

Date	Code	Title	Description
2002-01-02	PE20	Patent expired after termination of 20 years	Effective date: 20011208

Publication	Publication Date	Title
JPS57203978A (en)	1982-12-14	Digital-tester in circuit
GB8430050D0 (en)	1985-01-09	Circuit arrangements
JPS57174772A (en)	1982-10-27	Multiplying and adding circuit
GB8422999D0 (en)	1984-10-17	Circuit arrangement
GB8420739D0 (en)	1984-09-19	Dynamic coring circuit
KR960001492B1 (en)	1996-01-31	Circuit arrangements for modifying dynamic range
GB8428805D0 (en)	1984-12-27	Circuit arrangement
GB8333133D0 (en)	1984-01-18	Sample-&-hold circuit
IE823101L (en)	1983-06-29	Test circuit
GB2113034B (en)	1985-03-27	Dynamic amplifier circuit
GB8431766D0 (en)	1985-01-30	Circuit arrangement
GB2119601B (en)	1985-09-25	Dynamic coring circuit
DE3279896D1 (en)	1989-09-21	Memory circuit
GB8305299D0 (en)	1983-03-30	Amplifier circuit
GB2069271B (en)	1984-02-22	Dynamic mos-logic in interlace-technique
GB2130037B (en)	1986-03-12	Amplifier circuit
DE3279521D1 (en)	1989-04-13	Memory circuit
EP0060115A3 (en)	1985-04-17	Memory circuit
GB8324526D0 (en)	1983-10-12	Dynamic type mosram
HK123696A (en)	1996-07-19	Dynamic focus circuit
GB2111356B (en)	1985-03-20	Improvements in circuit arrangements for modifying dynamic range
DE3273549D1 (en)	1986-11-06	Restructurable integrated circuit
GB2111355B (en)	1985-02-13	Improvements in circuit arrangements for modifying dynamic range
DE3277434D1 (en)	1987-11-05	Reference time-detecting circuit
DE3279996D1 (en)	1989-11-23	Memory circuit