JPS54153529A - Automatic waveform equalizer - Google Patents

Automatic waveform equalizer

Info

Publication number
JPS54153529A
JPS54153529A JP6267978A JP6267978A JPS54153529A JP S54153529 A JPS54153529 A JP S54153529A JP 6267978 A JP6267978 A JP 6267978A JP 6267978 A JP6267978 A JP 6267978A JP S54153529 A JPS54153529 A JP S54153529A
Authority
JP
Japan
Prior art keywords
waveform distortion
pulse
error code
test signal
waveform
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
JP6267978A
Other languages
Japanese (ja)
Other versions
JPS6123716B2 (en
Inventor
Tadao Endo
Uimaru Kuribayashi
Kazuaki Hirakawa
Senji Furuya
Yuzo Fukushi
Yujiro Nakahata
Keisuke Ikeuchi
Tadao Nagatsuma
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
Japan Broadcasting Corp
Original Assignee
NEC Corp
Nippon Hoso Kyokai NHK
Nippon 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 NEC Corp, Nippon Hoso Kyokai NHK, Nippon Electric Co Ltd, Japan Broadcasting Corp filed Critical NEC Corp
Priority to JP6267978A priority Critical patent/JPS54153529A/en
Publication of JPS54153529A publication Critical patent/JPS54153529A/en
Publication of JPS6123716B2 publication Critical patent/JPS6123716B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To automatically equalize the waveform distortion of the video signal caused in the transmission system, by controlling the transversal filters through the monitor of a part of the waveform distortion of the second power sinusoidal wave pulse of the test signal superimposed during the vertical balnking period.
CONSTITUTION: In synchronizing with the second power sinusoidal waveform of the test signal superimposed during the vertical blanking period of color television signal, the sampling pulse corresponding to the time before the 2T bar rising and after the trailing is generated. Further, the reception 2T pulse of the output of the reference voltage generating means 9 and that of the transversal filter output are compared 16 at the sampling time, to produce the error code. This error code produces 18 the control information, which sequentially changes little by little the coefficient of the adjusted taps 4 to 7 of the transversal filters toward the correction of the waveform distortion.
COPYRIGHT: (C)1979,JPO&Japio
JP6267978A 1978-05-24 1978-05-24 Automatic waveform equalizer Granted JPS54153529A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6267978A JPS54153529A (en) 1978-05-24 1978-05-24 Automatic waveform equalizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6267978A JPS54153529A (en) 1978-05-24 1978-05-24 Automatic waveform equalizer

Publications (2)

Publication Number Publication Date
JPS54153529A true JPS54153529A (en) 1979-12-03
JPS6123716B2 JPS6123716B2 (en) 1986-06-06

Family

ID=13207202

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6267978A Granted JPS54153529A (en) 1978-05-24 1978-05-24 Automatic waveform equalizer

Country Status (1)

Country Link
JP (1) JPS54153529A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006279585A (en) * 2005-03-29 2006-10-12 Toshiba Corp Linear distortion detector and linear distortion compensator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006279585A (en) * 2005-03-29 2006-10-12 Toshiba Corp Linear distortion detector and linear distortion compensator
JP4550639B2 (en) * 2005-03-29 2010-09-22 株式会社東芝 Linear distortion detector and linear distortion compensator

Also Published As

Publication number Publication date
JPS6123716B2 (en) 1986-06-06

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