DK147746C - Aktivt rc-filter samt anvendelse heraf - Google Patents

Aktivt rc-filter samt anvendelse heraf

Info

Publication number: DK147746C
Authority: DK; Denmark
Prior art keywords: filter; active
Prior art date: 1975-03-24

Application number

DK130576A

Other languages

English (en)

Other versions

DK147746B (da

DK130576A (da

Inventor

John Mortimer Rollett

Original Assignee

Post Office

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.)

1975-03-24

Filing date

1976-03-24

Publication date

1985-07-15

1976-03-24 Application filed by Post Office filed Critical Post Office

1976-09-25 Publication of DK130576A publication Critical patent/DK130576A/da

1984-11-26 Publication of DK147746B publication Critical patent/DK147746B/da

1985-07-15 Application granted granted Critical

1985-07-15 Publication of DK147746C publication Critical patent/DK147746C/da

Links

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/04—Control of transmission; Equalising
- H04B3/14—Control of transmission; Equalising characterised by the equalising network used
- H04B3/143—Control of transmission; Equalising characterised by the equalising network used using amplitude-frequency equalisers
- H04B3/145—Control of transmission; Equalising characterised by the equalising network used using amplitude-frequency equalisers variable equalisers

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Networks Using Active Elements (AREA)
Filters And Equalizers (AREA)

DK130576A 1975-03-24 1976-03-24 Aktivt rc-filter samt anvendelse heraf DK147746C (da)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GB1226975		1975-03-24
GB12269/75A GB1547362A (en)	1975-03-24	1975-03-24	Active amplitude equalizers

Publications (3)

Publication Number	Publication Date
DK130576A DK130576A (da)	1976-09-25
DK147746B DK147746B (da)	1984-11-26
DK147746C true DK147746C (da)	1985-07-15

Family

ID=10001462

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK130576A DK147746C (da)	1975-03-24	1976-03-24	Aktivt rc-filter samt anvendelse heraf

Country Status (9)

Country	Link
US (1)	US4012704A (da)
AT (1)	AT348593B (da)
CA (1)	CA1046598A (da)
DE (1)	DE2612555C2 (da)
DK (1)	DK147746C (da)
FR (1)	FR2305897A1 (da)
GB (1)	GB1547362A (da)
NL (1)	NL7603011A (da)
SE (1)	SE405665B (da)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4217562A (en) *	1977-09-07	1980-08-12	The Post Office	Equalizer networks providing a bump shaped response
DE3227239A1 (de) *	1982-07-21	1984-01-26	Siemens AG, 1000 Berlin und 8000 München	Regelbarer entzerrer
JPS59194124A (ja) *	1983-04-15	1984-11-02	Hitachi Ltd	スラスト軸受
US5197102A (en) *	1991-01-14	1993-03-23	Peavey Electronics Corporation	Audio power amplifier system with frequency selective damping factor controls
US5754668A (en) *	1994-11-08	1998-05-19	Rohm Co., Ltd.	Equalizer and audio device using the same
US5977865A (en) *	1997-06-12	1999-11-02	Microsoft Corporation	Bit encoding in home control systems
US6400221B2 (en)	2000-06-29	2002-06-04	Peavey Electronics Corporation	Audio amplifier system with discrete digital frequency selective damping factor controls
EP2341616B1 (en) *	2009-12-23	2013-04-24	STMicroelectronics Design and Application S.R.O.	Capacitive load driving amplifier
FR3149731B1 (fr)	2023-06-12	2025-04-25	Psa Automobiles Sa	Dispositif robotisé de charge par induction des batteries d’un véhicule automobile à motorisation électrique ou hybride

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3715680A (en) *	1971-07-29	1973-02-06	Bell Telephone Labor Inc	Active rc loss equalizer
US3818359A (en) *	1972-11-29	1974-06-18	Hekimian Laboratories Inc	Line equalizer circuit employing active gyrator
GB1442163A (en) *	1973-10-01	1976-07-07	Post Office	Arrangement for simulating inductance and filter networks incorpo rating such improvements
US3940709A (en) *	1974-12-19	1976-02-24	Ampex Corporation	Equalization circuit

1975
- 1975-03-24 GB GB12269/75A patent/GB1547362A/en not_active Expired
1976
- 1976-03-22 US US05/668,988 patent/US4012704A/en not_active Expired - Lifetime
- 1976-03-23 NL NL7603011A patent/NL7603011A/xx not_active Application Discontinuation
- 1976-03-23 CA CA248,873A patent/CA1046598A/en not_active Expired
- 1976-03-23 AT AT213276A patent/AT348593B/de not_active IP Right Cessation
- 1976-03-24 DK DK130576A patent/DK147746C/da not_active IP Right Cessation
- 1976-03-24 FR FR7608500A patent/FR2305897A1/fr active Granted
- 1976-03-24 SE SE7603607A patent/SE405665B/xx unknown
- 1976-03-24 DE DE2612555A patent/DE2612555C2/de not_active Expired

Also Published As

Publication number	Publication date
SE405665B (sv)	1978-12-18
SE7603607L (sv)	1976-09-25
AT348593B (de)	1979-02-26
DE2612555A1 (de)	1976-10-07
GB1547362A (en)	1979-06-13
CA1046598A (en)	1979-01-16
FR2305897A1 (fr)	1976-10-22
US4012704A (en)	1977-03-15
FR2305897B1 (da)	1982-01-29
DK147746B (da)	1984-11-26
DK130576A (da)	1976-09-25
NL7603011A (nl)	1976-09-28
ATA213276A (de)	1978-07-15
DE2612555C2 (de)	1985-08-08

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Legal Events

Date	Code	Title	Description
1986-12-08	PBP	Patent lapsed