JPS54152917A - Automatic eaveform equalizer - Google Patents

Automatic eaveform equalizer

Info

Publication number
JPS54152917A
JPS54152917A JP6265478A JP6265478A JPS54152917A JP S54152917 A JPS54152917 A JP S54152917A JP 6265478 A JP6265478 A JP 6265478A JP 6265478 A JP6265478 A JP 6265478A JP S54152917 A JPS54152917 A JP S54152917A
Authority
JP
Japan
Prior art keywords
circuit
signal
pulses
phase
output
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
JP6265478A
Other languages
Japanese (ja)
Other versions
JPS6138675B2 (en
Inventor
Yoshiji Furuya
Yuzo Fukushi
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 JP6265478A priority Critical patent/JPS54152917A/en
Publication of JPS54152917A publication Critical patent/JPS54152917A/en
Publication of JPS6138675B2 publication Critical patent/JPS6138675B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Processing Of Color Television Signals (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE: To prevent the generation of the phase jitters by making a timing circuit count and output the output signal pulses by making a horizontal synchronizing signal of 17H into trigger pulses.
CONSTITUTION: A color TV signal branched from center tap 18 is applied to color- burst-signal extraction circuit 21 and control-signal extraction circuit 25, and circuit 21 outputs a continuous sine wave synchronizing with the color burst signal; the output wave is multiplied 22 and phase-controlled by phase-shifting circuit 23 before being applied to timing circuit 13. On the other hand, a horizontal synchronizing signal of 17H is extracted by circuit 25 and applied to circuit 13 as trigger pulses. In this circuit 13, output signal pulses of circuit 23 are counted by those trigger pulses and then outputted so as to synchronize equalization timing pulses constantly with the horizontal synchronizing pulse signal of 17H, thereby preventing the generation of the phase jitters.
COPYRIGHT: (C)1979,JPO&Japio
JP6265478A 1978-05-24 1978-05-24 Automatic eaveform equalizer Granted JPS54152917A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6265478A JPS54152917A (en) 1978-05-24 1978-05-24 Automatic eaveform equalizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6265478A JPS54152917A (en) 1978-05-24 1978-05-24 Automatic eaveform equalizer

Publications (2)

Publication Number Publication Date
JPS54152917A true JPS54152917A (en) 1979-12-01
JPS6138675B2 JPS6138675B2 (en) 1986-08-30

Family

ID=13206518

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6265478A Granted JPS54152917A (en) 1978-05-24 1978-05-24 Automatic eaveform equalizer

Country Status (1)

Country Link
JP (1) JPS54152917A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6267989A (en) * 1985-09-19 1987-03-27 Matsushita Electric Ind Co Ltd Comb-line filter control device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6267989A (en) * 1985-09-19 1987-03-27 Matsushita Electric Ind Co Ltd Comb-line filter control device

Also Published As

Publication number Publication date
JPS6138675B2 (en) 1986-08-30

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