JPS55134526A - Waveform equalizer - Google Patents

Waveform equalizer

Info

Publication number
JPS55134526A
JPS55134526A JP4159579A JP4159579A JPS55134526A JP S55134526 A JPS55134526 A JP S55134526A JP 4159579 A JP4159579 A JP 4159579A JP 4159579 A JP4159579 A JP 4159579A JP S55134526 A JPS55134526 A JP S55134526A
Authority
JP
Japan
Prior art keywords
waveform
output
circuit
reference signal
signal
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
JP4159579A
Other languages
Japanese (ja)
Other versions
JPS6247369B2 (en
Inventor
Shunichi Onishi
Masaharu Obara
Masaru Sakurai
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 JP4159579A priority Critical patent/JPS55134526A/en
Publication of JPS55134526A publication Critical patent/JPS55134526A/en
Publication of JPS6247369B2 publication Critical patent/JPS6247369B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • H04L25/03057—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure
    • H04L25/03076—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure not using decision feedback

Abstract

PURPOSE:To give effect to the simplification of circuit constitution and the improvement of stability while improving the waveform equalizing function for the low-frequency range, by correcting a weighting control voltage according to the amplitude variation of a detected reference signal waveform per constant time. CONSTITUTION:Input signal X(t) to be waveform-equalized is subtracted 3 from the output signal of transversal filter 1 and waveform-equalized signal Y(t) is output and also supplied to the input side of filter 1. In control circuit 2, a reference signal, the output of reference signal extracting circuit 21 is applied to reference position detecting circuit 26 and waveform detecting circuit 28, which extracts the amplitude of the reference signal at time t=t0 and t=tN under the control of timing control circuit 27 to detect the amplitude variation during the period; and its output is applied to adders 25(S1-SN) by way of integrator 24(C0) and superposed in parallel on weighting control voltages applied to weighting circuits 12(W1-WN).
JP4159579A 1979-04-06 1979-04-06 Waveform equalizer Granted JPS55134526A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4159579A JPS55134526A (en) 1979-04-06 1979-04-06 Waveform equalizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4159579A JPS55134526A (en) 1979-04-06 1979-04-06 Waveform equalizer

Publications (2)

Publication Number Publication Date
JPS55134526A true JPS55134526A (en) 1980-10-20
JPS6247369B2 JPS6247369B2 (en) 1987-10-07

Family

ID=12612749

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4159579A Granted JPS55134526A (en) 1979-04-06 1979-04-06 Waveform equalizer

Country Status (1)

Country Link
JP (1) JPS55134526A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100427430B1 (en) * 2002-01-28 2004-04-13 학교법인 동서학원 Metal thin film pressure sensor and method for making the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51113550A (en) * 1975-03-31 1976-10-06 Hitachi Ltd Automatic waveform equalizer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51113550A (en) * 1975-03-31 1976-10-06 Hitachi Ltd Automatic waveform equalizer

Also Published As

Publication number Publication date
JPS6247369B2 (en) 1987-10-07

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