JPH0245362B2 - - Google Patents

Info

Publication number
JPH0245362B2
JPH0245362B2 JP61120933A JP12093386A JPH0245362B2 JP H0245362 B2 JPH0245362 B2 JP H0245362B2 JP 61120933 A JP61120933 A JP 61120933A JP 12093386 A JP12093386 A JP 12093386A JP H0245362 B2 JPH0245362 B2 JP H0245362B2
Authority
JP
Japan
Prior art keywords
filter
amplifier
output
bandwidth
circuit
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 - Lifetime
Application number
JP61120933A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61278203A (ja
Inventor
Deii Ingurishu Jeemuzu
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.)
Tektronix Japan Ltd
Original Assignee
Sony Tektronix Corp
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 Sony Tektronix Corp filed Critical Sony Tektronix Corp
Publication of JPS61278203A publication Critical patent/JPS61278203A/ja
Publication of JPH0245362B2 publication Critical patent/JPH0245362B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/02—Manually-operated control
    • H03G5/04—Manually-operated control in untuned amplifiers
    • H03G5/10—Manually-operated control in untuned amplifiers having semiconductor devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1213—Frequency selective two-port networks using amplifiers with feedback using transistor amplifiers

Landscapes

  • Filters And Equalizers (AREA)
  • Networks Using Active Elements (AREA)
JP61120933A 1985-06-03 1986-05-26 可変帯域幅フイルタ Granted JPS61278203A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/740,380 US4568886A (en) 1985-06-03 1985-06-03 Amplitude compensated variable bandwidth filter
US740380 1985-06-03

Publications (2)

Publication Number Publication Date
JPS61278203A JPS61278203A (ja) 1986-12-09
JPH0245362B2 true JPH0245362B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1990-10-09

Family

ID=24976272

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61120933A Granted JPS61278203A (ja) 1985-06-03 1986-05-26 可変帯域幅フイルタ

Country Status (2)

Country Link
US (1) US4568886A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS61278203A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5103084A (en) * 1989-06-15 1992-04-07 Unisys Corp. Adjustable radiation-controlled filter with voltage controlled bandwidth
US5162646A (en) * 1989-06-15 1992-11-10 Unisys Corp. Radiation-controlled filter with photoconductor means and feedback thereto
US5543756A (en) * 1995-05-12 1996-08-06 Hewlett-Packard Company Combined crystal and LC filter
EP1145430B1 (en) * 1998-11-12 2004-09-15 Broadcom Corporation Integrated tuner architecture

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4275453A (en) * 1980-01-25 1981-06-23 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Smoothing filter for digital to analog conversion

Also Published As

Publication number Publication date
JPS61278203A (ja) 1986-12-09
US4568886A (en) 1986-02-04

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