GB1547362A - Active amplitude equalizers - Google Patents

Active amplitude equalizers

Info

Publication number
GB1547362A
GB1547362A GB12269/75A GB1226975A GB1547362A GB 1547362 A GB1547362 A GB 1547362A GB 12269/75 A GB12269/75 A GB 12269/75A GB 1226975 A GB1226975 A GB 1226975A GB 1547362 A GB1547362 A GB 1547362A
Authority
GB
United Kingdom
Prior art keywords
active amplitude
amplitude equalizers
equalizers
active
amplitude
Prior art date
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
GB12269/75A
Other languages
English (en)
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.)
Post Office
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
Priority to GB12269/75A priority Critical patent/GB1547362A/en
Priority to US05/668,988 priority patent/US4012704A/en
Priority to NL7603011A priority patent/NL7603011A/xx
Priority to AT213276A priority patent/AT348593B/de
Priority to CA248,873A priority patent/CA1046598A/en
Priority to SE7603607A priority patent/SE405665B/xx
Priority to FR7608500A priority patent/FR2305897A1/fr
Priority to DK130576A priority patent/DK147746C/da
Priority to DE2612555A priority patent/DE2612555C2/de
Publication of GB1547362A publication Critical patent/GB1547362A/en
Expired legal-status Critical Current

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)
GB12269/75A 1975-03-24 1975-03-24 Active amplitude equalizers Expired GB1547362A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
GB12269/75A GB1547362A (en) 1975-03-24 1975-03-24 Active amplitude equalizers
US05/668,988 US4012704A (en) 1975-03-24 1976-03-22 Active amplitude equalizers
NL7603011A NL7603011A (nl) 1975-03-24 1976-03-23 Actief amplitudevereffenaar-netwerk.
AT213276A AT348593B (de) 1975-03-24 1976-03-23 Aktives rc-filter mit biquadratischer uebertragungsfunktion
CA248,873A CA1046598A (en) 1975-03-24 1976-03-23 Active amplitude equalizers
SE7603607A SE405665B (sv) 1975-03-24 1976-03-24 Aktivt amplitudkorrektionsnet
FR7608500A FR2305897A1 (fr) 1975-03-24 1976-03-24 Reseau d'egalisation d'amplitude pour une voie de transmission
DK130576A DK147746C (da) 1975-03-24 1976-03-24 Aktivt rc-filter samt anvendelse heraf
DE2612555A DE2612555C2 (de) 1975-03-24 1976-03-24 Aktives RC-Filter

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB1547362A true GB1547362A (en) 1979-06-13

Family

ID=10001462

Family Applications (1)

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

Country Status (9)

Country Link
US (1) US4012704A (US20100223739A1-20100909-C00025.png)
AT (1) AT348593B (US20100223739A1-20100909-C00025.png)
CA (1) CA1046598A (US20100223739A1-20100909-C00025.png)
DE (1) DE2612555C2 (US20100223739A1-20100909-C00025.png)
DK (1) DK147746C (US20100223739A1-20100909-C00025.png)
FR (1) FR2305897A1 (US20100223739A1-20100909-C00025.png)
GB (1) GB1547362A (US20100223739A1-20100909-C00025.png)
NL (1) NL7603011A (US20100223739A1-20100909-C00025.png)
SE (1) SE405665B (US20100223739A1-20100909-C00025.png)

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 (en) * 2009-12-23 2013-04-24 STMicroelectronics Design and Application S.R.O. Capacitive load driving amplifier

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
DK147746C (da) 1985-07-15
SE7603607L (sv) 1976-09-25
SE405665B (sv) 1978-12-18
ATA213276A (de) 1978-07-15
FR2305897B1 (US20100223739A1-20100909-C00025.png) 1982-01-29
AT348593B (de) 1979-02-26
DK130576A (da) 1976-09-25
FR2305897A1 (fr) 1976-10-22
DK147746B (da) 1984-11-26
DE2612555C2 (de) 1985-08-08
DE2612555A1 (de) 1976-10-07
NL7603011A (nl) 1976-09-28
CA1046598A (en) 1979-01-16
US4012704A (en) 1977-03-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950324