JPS5547719A - Adjusting circuit for frequency characteristic - Google Patents

Adjusting circuit for frequency characteristic

Info

Publication number
JPS5547719A
JPS5547719A JP12129978A JP12129978A JPS5547719A JP S5547719 A JPS5547719 A JP S5547719A JP 12129978 A JP12129978 A JP 12129978A JP 12129978 A JP12129978 A JP 12129978A JP S5547719 A JPS5547719 A JP S5547719A
Authority
JP
Japan
Prior art keywords
circuit
adder
input terminal
feed
frequency characteristic
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.)
Pending
Application number
JP12129978A
Other languages
Japanese (ja)
Other versions
JPS6056012B2 (en
Inventor
Kazumasa Ishikawa
Shinichi Takahashi
Masahide Yoneyama
Original Assignee
Nippon Columbia Co Ltd
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 Nippon Columbia Co Ltd filed Critical Nippon Columbia Co Ltd
Priority to JP12129978A priority Critical patent/JPS6056012B2/ja
Priority claimed from US06/076,765 external-priority patent/US4336501A/en
Publication of JPS5547719A publication Critical patent/JPS5547719A/en
Publication of JPS6056012B2 publication Critical patent/JPS6056012B2/ja
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H04B3/144—Control of transmission; Equalising characterised by the equalising network used using amplitude-frequency equalisers fixed equalizers
    • H—ELECTRICITY
    • H03—BASIC 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
    • H03H11/1217—Frequency selective two-port networks using amplifiers with feedback using a plurality of operational amplifiers

Abstract

PURPOSE:To establish the frequency characteristic adjusting circuit with a given performance without using filters of complicated constitution, by combining addition circuit, feed forward circuit and feed back circuit. CONSTITUTION:The input terminal 17 is connected to one input terminal of the first adder 11. The output 21 of the adder 11 is branched into two, and one is grounded via the series circuit of the series circuit consisting of the variable resistor 12 and capacitor 13 and the parallel circuit consisting of the variable resistor 14 and capacitor 15. The junction 20 of the series circuit is branched into two, one is fed to one input terminal of the second adder 19 via the feed forward circuit 22 and another is fed to another input terminal of the adder 11 via the feed back circuit 16. The output 21 is fed to one input terminal of the adder 19 and it is led out at the output terminal 18 of the adder 19.
JP12129978A 1978-10-02 1978-10-02 Expired JPS6056012B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12129978A JPS6056012B2 (en) 1978-10-02 1978-10-02

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP12129978A JPS6056012B2 (en) 1978-10-02 1978-10-02
US06/076,765 US4336501A (en) 1978-09-26 1979-09-18 Frequency characteristic adjusting circuit

Publications (2)

Publication Number Publication Date
JPS5547719A true JPS5547719A (en) 1980-04-04
JPS6056012B2 JPS6056012B2 (en) 1985-12-07

Family

ID=14807810

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12129978A Expired JPS6056012B2 (en) 1978-10-02 1978-10-02

Country Status (1)

Country Link
JP (1) JPS6056012B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4694171A (en) * 1984-11-29 1987-09-15 Fuji Photo Film Co., Ltd. Electron microscope image focusing using instantaneous emission of stimulable phosphor sheet
US4695725A (en) * 1984-12-10 1987-09-22 Fuji Photo Film Co., Ltd. Method of detecting a focus defect of an electron microscope image
US4700071A (en) * 1985-01-16 1987-10-13 Fuji Photo Film Co., Ltd. Method of recording and reproducing an electron microscope image
US4847497A (en) * 1985-04-11 1989-07-11 Fuji Photo Film Co., Ltd. Apparatus for recording images produced by an electron microscope
US4873440A (en) * 1986-12-26 1989-10-10 Fuji Photo Film Co., Ltd. Electron microscope image output method and apparatus
US4889990A (en) * 1984-07-19 1989-12-26 Fuji Photo Film Co., Ltd. Method and apparatus for recording and reproducing electron microscope image

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4889990A (en) * 1984-07-19 1989-12-26 Fuji Photo Film Co., Ltd. Method and apparatus for recording and reproducing electron microscope image
US4694171A (en) * 1984-11-29 1987-09-15 Fuji Photo Film Co., Ltd. Electron microscope image focusing using instantaneous emission of stimulable phosphor sheet
US4695725A (en) * 1984-12-10 1987-09-22 Fuji Photo Film Co., Ltd. Method of detecting a focus defect of an electron microscope image
US4700071A (en) * 1985-01-16 1987-10-13 Fuji Photo Film Co., Ltd. Method of recording and reproducing an electron microscope image
US4847497A (en) * 1985-04-11 1989-07-11 Fuji Photo Film Co., Ltd. Apparatus for recording images produced by an electron microscope
US4873440A (en) * 1986-12-26 1989-10-10 Fuji Photo Film Co., Ltd. Electron microscope image output method and apparatus

Also Published As

Publication number Publication date
JPS6056012B2 (en) 1985-12-07

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