JPS5466716A - Gate circuit for picking up of vertical blanking period interleave signal of television signal - Google Patents

Gate circuit for picking up of vertical blanking period interleave signal of television signal

Info

Publication number
JPS5466716A
JPS5466716A JP13311877A JP13311877A JPS5466716A JP S5466716 A JPS5466716 A JP S5466716A JP 13311877 A JP13311877 A JP 13311877A JP 13311877 A JP13311877 A JP 13311877A JP S5466716 A JPS5466716 A JP S5466716A
Authority
JP
Japan
Prior art keywords
signal
pulse
blanking period
vertical blanking
picking
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
JP13311877A
Other languages
Japanese (ja)
Other versions
JPS5832554B2 (en
Inventor
Yuji Inoue
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 Home Electronics Ltd
NEC Corp
Original Assignee
NEC Home Electronics Ltd
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 Home Electronics Ltd, Nippon Electric Co Ltd filed Critical NEC Home Electronics Ltd
Priority to JP13311877A priority Critical patent/JPS5832554B2/en
Publication of JPS5466716A publication Critical patent/JPS5466716A/en
Publication of JPS5832554B2 publication Critical patent/JPS5832554B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Processing Of Color Television Signals (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Television Systems (AREA)

Abstract

PURPOSE: To enable to achieve no adjustment, by forming the gate pulse of the vertical blanking period interleave signal through the formation of the reference signal counting the horizontal pulse and the detection of the vertical synchronizing signal.
CONSTITUTION: In synchronizing with the horizontal pulse of the television signal, pulse inverted G3 every about 0.5 horizontal scanning period is formed, and by gating G5 the synchronizing pulse with this pulse, in either field, at the fourth horizontal scanning period counting from the end of preceding field, the first vertical synchronous pulse can be present, allowing to detect the vertical synchronizing signal and to form the reference signal counting C8 the horizontal pulse and also to form the gate G9 pulse for the vertical blanking period interleave signal, and non- adjustment can be possible.
COPYRIGHT: (C)1979,JPO&Japio
JP13311877A 1977-11-08 1977-11-08 Gate pulse forming circuit for extracting vertical blanking period input signal of television signal Expired JPS5832554B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13311877A JPS5832554B2 (en) 1977-11-08 1977-11-08 Gate pulse forming circuit for extracting vertical blanking period input signal of television signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13311877A JPS5832554B2 (en) 1977-11-08 1977-11-08 Gate pulse forming circuit for extracting vertical blanking period input signal of television signal

Publications (2)

Publication Number Publication Date
JPS5466716A true JPS5466716A (en) 1979-05-29
JPS5832554B2 JPS5832554B2 (en) 1983-07-13

Family

ID=15097204

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13311877A Expired JPS5832554B2 (en) 1977-11-08 1977-11-08 Gate pulse forming circuit for extracting vertical blanking period input signal of television signal

Country Status (1)

Country Link
JP (1) JPS5832554B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5866480A (en) * 1981-10-16 1983-04-20 Sharp Corp Automatic detecting circuit for position of multiplex signal of character broadcast

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5866480A (en) * 1981-10-16 1983-04-20 Sharp Corp Automatic detecting circuit for position of multiplex signal of character broadcast

Also Published As

Publication number Publication date
JPS5832554B2 (en) 1983-07-13

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