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JPS556916A - Automatic equalizer - Google Patents

Automatic equalizer

Info

Publication number
JPS556916A
JPS556916A JP7869378A JP7869378A JPS556916A JP S556916 A JPS556916 A JP S556916A JP 7869378 A JP7869378 A JP 7869378A JP 7869378 A JP7869378 A JP 7869378A JP S556916 A JPS556916 A JP S556916A
Authority
JP
Japan
Prior art keywords
current
voltage
control
output
processor
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
JP7869378A
Other languages
Japanese (ja)
Inventor
Shunichi Onishi
Masaru Sakurai
Masayuki Katakura
Shinichi Makino
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.)
Toshiba Corp
Japan Broadcasting Corp
Original Assignee
Toshiba Corp
Nippon Hoso Kyokai NHK
Tokyo Shibaura Electric Co Ltd
Japan Broadcasting 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 Toshiba Corp, Nippon Hoso Kyokai NHK, Tokyo Shibaura Electric Co Ltd, Japan Broadcasting Corp filed Critical Toshiba Corp
Priority to JP7869378A priority Critical patent/JPS556916A/en
Publication of JPS556916A publication Critical patent/JPS556916A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques

Landscapes

  • Picture Signal Circuits (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE:To obtain an automatic equalizer which can facilitate and easier formation of the IC. CONSTITUTION:Transversal filter 10 can control the tap coefficient with the DC voltage and is constituted by installing plural units of weighting circuits of MOSFET on the transfer line of the CCD register. Part of the output of filter 10 is supplied to error signal processor 29, and the output of processor 29 converts the signal voltage into the signal current through voltage-current converter 12. Converter 12 can be formed with the current source of the voltage control, and thus the current volume is controlled by the output voltage value of processor 29 for transistor 17 of differential amplifier 19 consisting of transistors 17 and 18 to then control the current of transistor 18. As a result, the current cource proportional to the input voltage value is obtained when viewed from output terminal 20. Then constant current sources 21 and 22 are connected to the emitter of amplifier 19, and current mirror 23 is connected to the load. On the other hand, the sampling pulse is teansmitted in correspondence to the input data by distributor 13 for the switch control of analog switch group 14.
JP7869378A 1978-06-30 1978-06-30 Automatic equalizer Pending JPS556916A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7869378A JPS556916A (en) 1978-06-30 1978-06-30 Automatic equalizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7869378A JPS556916A (en) 1978-06-30 1978-06-30 Automatic equalizer

Publications (1)

Publication Number Publication Date
JPS556916A true JPS556916A (en) 1980-01-18

Family

ID=13668936

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7869378A Pending JPS556916A (en) 1978-06-30 1978-06-30 Automatic equalizer

Country Status (1)

Country Link
JP (1) JPS556916A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02189800A (en) * 1988-12-08 1990-07-25 Philips Gloeilampenfab:Nv Sample-converted analog electrical signal processing circuit array
US6344842B1 (en) 1995-11-30 2002-02-05 Lg. Phillips Lcd Co., Ltd. Liquid crystal display device and a driving method therefor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5019421A (en) * 1973-03-02 1975-02-28

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5019421A (en) * 1973-03-02 1975-02-28

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02189800A (en) * 1988-12-08 1990-07-25 Philips Gloeilampenfab:Nv Sample-converted analog electrical signal processing circuit array
US6344842B1 (en) 1995-11-30 2002-02-05 Lg. Phillips Lcd Co., Ltd. Liquid crystal display device and a driving method therefor

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