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

Aktivt rc-filter samt anvendelse heraf

Info

Publication number
DK147746C
DK147746C DK130576A DK130576A DK147746C DK 147746 C DK147746 C DK 147746C DK 130576 A DK130576 A DK 130576A DK 130576 A DK130576 A DK 130576A DK 147746 C DK147746 C DK 147746C
Authority
DK
Denmark
Prior art keywords
filter
active
Prior art date
Application number
DK130576A
Other languages
Danish (da)
English (en)
Other versions
DK130576A (da
DK147746B (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.)
Filing date
Publication date
Application filed by Post Office filed Critical Post Office
Publication of DK130576A publication Critical patent/DK130576A/da
Publication of DK147746B publication Critical patent/DK147746B/da
Application granted granted Critical
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 (fr)
AT (1) AT348593B (fr)
CA (1) CA1046598A (fr)
DE (1) DE2612555C2 (fr)
DK (1) DK147746C (fr)
FR (1) FR2305897A1 (fr)
GB (1) GB1547362A (fr)
NL (1) NL7603011A (fr)
SE (1) SE405665B (fr)

Families Citing this family (8)

* 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 (fr) * 2009-12-23 2013-04-24 STMicroelectronics Design and Application S.R.O. Amplificateur de commande de charge capacitive

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

Also Published As

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

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Legal Events

Date Code Title Description
PBP Patent lapsed