NL163388C - Ruisonderdrukkingsschakeling. - Google Patents

Ruisonderdrukkingsschakeling.

Info

Publication number: NL163388C
Authority: NL; Netherlands
Prior art keywords: noise reduction; reduction circuit; circuit; noise; reduction
Prior art date: 1971-05-04

Application number

NL7106040.A

Other languages

English (en)

Other versions

NL7106040A (nl

NL163388B (nl

Inventor

Robert Nestor Joseph Van Sluys

Original Assignee

Philips Nv

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.)

1971-05-04

Filing date

1971-05-04

Publication date

1980-08-15

1971-05-04 Application filed by Philips Nv filed Critical Philips Nv

1971-05-04 Priority to NL7106040.A priority Critical patent/NL163388C/nl

1972-04-22 Priority to DE2219794A priority patent/DE2219794C3/de

1972-04-25 Priority to US00247264A priority patent/US3818362A/en

1972-04-29 Priority to IT23749/72A priority patent/IT953872B/it

1972-05-01 Priority to JP47043596A priority patent/JPS5238691B1/ja

1972-05-01 Priority to GB2010372A priority patent/GB1393152A/en

1972-05-01 Priority to AU41715/72A priority patent/AU465461B2/en

1972-05-01 Priority to CA140,937A priority patent/CA946485A/en

1972-05-03 Priority to AT383572A priority patent/AT334107B/de

1972-05-04 Priority to FR727215913A priority patent/FR2135631B1/fr

1972-11-07 Publication of NL7106040A publication Critical patent/NL7106040A/xx

1980-03-17 Publication of NL163388B publication Critical patent/NL163388B/nl

1980-08-15 Application granted granted Critical

1980-08-15 Publication of NL163388C publication Critical patent/NL163388C/nl

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

NL7106040.A 1971-05-04 1971-05-04 Ruisonderdrukkingsschakeling. NL163388C (nl)

Priority Applications (10)

Application Number	Priority Date	Filing Date	Title
NL7106040.A NL163388C (nl)	1971-05-04	1971-05-04	Ruisonderdrukkingsschakeling.
DE2219794A DE2219794C3 (de)	1971-05-04	1972-04-22	Schaltung für Rauschunterdrückung
US00247264A US3818362A (en)	1971-05-04	1972-04-25	Noise reduction circuit
IT23749/72A IT953872B (it)	1971-05-04	1972-04-29	Circuito per la riduzione del rumore
JP47043596A JPS5238691B1 (nl)	1971-05-04	1972-05-01
GB2010372A GB1393152A (en)	1971-05-04	1972-05-01	Noise reduction circuit
AU41715/72A AU465461B2 (en)	1971-05-04	1972-05-01	Noise reduction circuit
CA140,937A CA946485A (en)	1971-05-04	1972-05-01	Noise reduction circuit
AT383572A AT334107B (de)	1971-05-04	1972-05-03	Schaltung zur rauschunterdruckung
FR727215913A FR2135631B1 (nl)	1971-05-04	1972-05-04

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL7106040.A NL163388C (nl)	1971-05-04	1971-05-04	Ruisonderdrukkingsschakeling.

Publications (3)

Publication Number	Publication Date
NL7106040A NL7106040A (nl)	1972-11-07
NL163388B NL163388B (nl)	1980-03-17
NL163388C true NL163388C (nl)	1980-08-15

Family

ID=19813073

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL7106040.A NL163388C (nl)	1971-05-04	1971-05-04	Ruisonderdrukkingsschakeling.

Country Status (10)

Country	Link
US (1)	US3818362A (nl)
JP (1)	JPS5238691B1 (nl)
AT (1)	AT334107B (nl)
AU (1)	AU465461B2 (nl)
CA (1)	CA946485A (nl)
DE (1)	DE2219794C3 (nl)
FR (1)	FR2135631B1 (nl)
GB (1)	GB1393152A (nl)
IT (1)	IT953872B (nl)
NL (1)	NL163388C (nl)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US29529A (en) *		1860-08-07		Machine eoe
BE793740A (fr) *	1972-01-08	1973-05-02	Akai Electric	Systeme d'enregistrement magnetique
US3940709A (en) *	1974-12-19	1976-02-24	Ampex Corporation	Equalization circuit
US4110784A (en) *	1976-08-30	1978-08-29	Rca Corporation	Noise reduction apparatus
NL7609730A (nl) *	1976-09-01	1978-03-03	Novanex Automation Nv	Versterker.
DE2655325C2 (de) *	1976-12-07	1984-01-26	Saba Gmbh, 7730 Villingen-Schwenningen	Magnetbandgerät mit einer im Wiedergabebetrieb wirksamen Rauschunterdrückungs-Schaltung
JPS5912850Y2 (ja) *	1978-03-06	1984-04-17	ホーチキ株式会社	チヤンネルレベル調整器
CA1188384A (en) *	1981-12-29	1985-06-04	Masayuki Katakura	Noise reduction circuit
JPS5972871A (ja) *	1982-10-20	1984-04-24	Hitachi Ltd	固体ビデオカメラの低輝度時雑音低減装置
US4703507A (en) *	1984-04-05	1987-10-27	Holden Thomas W	Noise reduction system
US4894566A (en) *	1988-10-18	1990-01-16	Rush Michael J	Noise reduction circuit
KR100213073B1 (ko) *	1996-11-09	1999-08-02	윤종용	재생 오디오 신호의 주파수 특성 보상 장치
CN109191387B (zh) *	2018-07-20	2021-09-24	河南师范大学	一种基于巴特沃斯滤波器的红外图像去噪方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3270213A (en) *	1963-10-21	1966-08-30	Princeton Applied Res Corp	Frequency responsive network
GB1111863A (en) *	1965-08-07	1968-05-01	English Electric Co Ltd	Arrangements for filtering signals
GB1120541A (en) *	1965-08-11	1968-07-17	Dolby Ray Milton	Improvements in noise reduction systems
US3631365A (en) *	1968-11-01	1971-12-28	Dolby Laboratories Inc	Signal compressors and expanders
BE753495A (fr) *	1969-07-21	1970-12-16	Dolby Laboratories Inc	Filtres limiteurs perfectionnes pour systemes attenuateurs de bruit. (
US3548334A (en) *	1969-07-28	1970-12-15	Matsushita Electric Ind Co Ltd	Noise reduction circuit and system

1971
- 1971-05-04 NL NL7106040.A patent/NL163388C/nl not_active IP Right Cessation
1972
- 1972-04-22 DE DE2219794A patent/DE2219794C3/de not_active Expired
- 1972-04-25 US US00247264A patent/US3818362A/en not_active Expired - Lifetime
- 1972-04-29 IT IT23749/72A patent/IT953872B/it active
- 1972-05-01 GB GB2010372A patent/GB1393152A/en not_active Expired
- 1972-05-01 JP JP47043596A patent/JPS5238691B1/ja active Pending
- 1972-05-01 CA CA140,937A patent/CA946485A/en not_active Expired
- 1972-05-01 AU AU41715/72A patent/AU465461B2/en not_active Expired
- 1972-05-03 AT AT383572A patent/AT334107B/de not_active IP Right Cessation
- 1972-05-04 FR FR727215913A patent/FR2135631B1/fr not_active Expired

Also Published As

Publication number	Publication date
GB1393152A (en)	1975-05-07
AU465461B2 (en)	1975-09-25
NL7106040A (nl)	1972-11-07
FR2135631B1 (nl)	1973-07-13
DE2219794B2 (nl)	1974-05-02
AU4171572A (en)	1973-11-08
IT953872B (it)	1973-08-10
CA946485A (en)	1974-04-30
NL163388B (nl)	1980-03-17
AT334107B (de)	1976-12-27
DE2219794A1 (de)	1972-11-30
JPS5238691B1 (nl)	1977-09-30
DE2219794C3 (de)	1974-12-05
FR2135631A1 (nl)	1972-12-22
ATA383572A (de)	1976-04-15
US3818362A (en)	1974-06-18

Publication	Publication Date	Title
DK138198B (da)	1978-07-24	Integreret kredsløb.
CH558663A (de)	1975-02-14	Ballschlaeger.
BE783967A (nl)	1972-11-27	Galvaniseerinrichting.
CH555461A (de)	1974-10-31	Echafaudage.
NL188777C (nl)	1992-09-16	Ruiseliminatieschakeling.
CH554480A (de)	1974-09-30	Harmonikatuere.
NL163388C (nl)	1980-08-15	Ruisonderdrukkingsschakeling.
CH547567A (de)	1974-03-29	Turbogenerater.
CH556593A (de)	1974-11-29	Reacteur nucleaire.
CH553706A (de)	1974-09-13	Foerderer.
BE772520A (fr)	1972-01-17	Stroomonderbrekingselement.
NL171217C (nl)	1983-02-16	Telefoon - conferentie-versterkerschakeling.
NL7503901A (nl)	1975-10-07	Versterkerschakeling.
CH547101A (de)	1974-03-29	Trocart.
NL175570C (nl)	1984-11-16	Ruisonderdrukkingsinrichting.
CH547215A (fr)	1974-03-29	Aerosol-ventil.
DK122989B (da)	1972-05-01	Radiostøjfilter.
DK130556B (da)	1975-03-03	Vaterpas.
CH546033A (de)	1974-02-28	Melkbecher.
BE772932A (fr)	1972-01-17	Zitmeubel.
CH557650A (de)	1975-01-15	Surchaussure aseptique.
BE772416A (fr)	1972-01-17	Brilmontuur.
BE766327A (fr)	1971-09-16	Roeimecanisme.
CH550357A (de)	1974-06-14	Bauelement.
CH558615A (de)	1975-01-31	Flipflop-schaltung.

Legal Events

Date	Code	Title	Description
1986-01-16	V1	Lapsed because of non-payment of the annual fee