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JPS56149819A - Analog automatic equalizer and its driving method - Google Patents

Analog automatic equalizer and its driving method

Info

Publication number
JPS56149819A
JPS56149819A JP5389980A JP5389980A JPS56149819A JP S56149819 A JPS56149819 A JP S56149819A JP 5389980 A JP5389980 A JP 5389980A JP 5389980 A JP5389980 A JP 5389980A JP S56149819 A JPS56149819 A JP S56149819A
Authority
JP
Japan
Prior art keywords
analog
circuit
signal
weighting coefficient
multiplied
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.)
Granted
Application number
JP5389980A
Other languages
Japanese (ja)
Other versions
JPS6327894B2 (en
Inventor
Masaaki Yasumoto
Tadayoshi Enomoto
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP5389980A priority Critical patent/JPS56149819A/en
Publication of JPS56149819A publication Critical patent/JPS56149819A/en
Publication of JPS6327894B2 publication Critical patent/JPS6327894B2/ja
Granted 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
    • H04B3/142—Control of transmission; Equalising characterised by the equalising network used using echo-equalisers, e.g. transversal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE:To make a system small and to realize its low cost and high reliability and also wide band, by executing all the signal processing by use of an analog value. CONSTITUTION:An analog signal which has been inputted to the terminal 2 is inputted to the analog delay line, and the nondestructive detection is made from the taps 4-1, 4-2.... An analog delay signal X (n-k) which has been detected is multiplied by a weighting coefficient in the multiplier 5-k. A signal which has been weighting-multiplied is all added and becomes an output signal Y (n). The weighting coefficient circuit 7-k is constituted of a circuit 21-k for storing the weighting coefficient once and a circuit 20-k for calculating a new weighting coefficient. The storage circuit 21-k is sample holding circuit consisting of a capacitance which is capable of analog storage, and an amplifier.
JP5389980A 1980-04-23 1980-04-23 Analog automatic equalizer and its driving method Granted JPS56149819A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5389980A JPS56149819A (en) 1980-04-23 1980-04-23 Analog automatic equalizer and its driving method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5389980A JPS56149819A (en) 1980-04-23 1980-04-23 Analog automatic equalizer and its driving method

Publications (2)

Publication Number Publication Date
JPS56149819A true JPS56149819A (en) 1981-11-19
JPS6327894B2 JPS6327894B2 (en) 1988-06-06

Family

ID=12955561

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5389980A Granted JPS56149819A (en) 1980-04-23 1980-04-23 Analog automatic equalizer and its driving method

Country Status (1)

Country Link
JP (1) JPS56149819A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60206215A (en) * 1984-03-30 1985-10-17 Oki Electric Ind Co Ltd Adaptive control filter
JPH0548373A (en) * 1991-08-12 1993-02-26 Mitsubishi Electric Corp Surface acoustic wave circuit
US6834709B2 (en) 1994-09-22 2004-12-28 Denso Corporation Automotive air conditioner

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5215212A (en) * 1975-07-23 1977-02-04 Codex Corp Receiver

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5215212A (en) * 1975-07-23 1977-02-04 Codex Corp Receiver

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60206215A (en) * 1984-03-30 1985-10-17 Oki Electric Ind Co Ltd Adaptive control filter
JPH0548373A (en) * 1991-08-12 1993-02-26 Mitsubishi Electric Corp Surface acoustic wave circuit
US6834709B2 (en) 1994-09-22 2004-12-28 Denso Corporation Automotive air conditioner

Also Published As

Publication number Publication date
JPS6327894B2 (en) 1988-06-06

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