JPS561679A - Detecting system for inversion phenomenon - Google Patents

Detecting system for inversion phenomenon

Info

Publication number
JPS561679A
JPS561679A JP7778179A JP7778179A JPS561679A JP S561679 A JPS561679 A JP S561679A JP 7778179 A JP7778179 A JP 7778179A JP 7778179 A JP7778179 A JP 7778179A JP S561679 A JPS561679 A JP S561679A
Authority
JP
Japan
Prior art keywords
circuit
pulse
inversion phenomenon
detection
gate
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
JP7778179A
Other languages
Japanese (ja)
Other versions
JPS6252992B2 (en
Inventor
Akihisa Sugita
Noboru Okuno
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP7778179A priority Critical patent/JPS561679A/en
Publication of JPS561679A publication Critical patent/JPS561679A/en
Publication of JPS6252992B2 publication Critical patent/JPS6252992B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

PURPOSE:To facilitate the detection for the inversion phenomenon, by inserting the pulse shaped detection pulse which occurs the inversion phenomenon most easily into the vertical blanking period and then detecting whether the inversion phenomenon occurs to the detection pulse or not. CONSTITUTION:The video signal supplied from input terminal 1 is applied to synchronous isolating circuit 2 and pre-emphasis circuit 3, and the horizontal synchronous signal isolated through circuit 2 is applied to detection pulse generating circuit 4. Thus the rectangular wave type detection pulse, which changes suddenly into the white level from the black level, is generated. On the other hand, the vertical synchronous signal isolated through circuit 2 is applied to gate pulse generating circuit 5 to produce the gate pulse of the horizontal scanning period within the vertical blanking period. This gate pulse is applied to gate circuit 6 to give gating just for the two horizontal scanning periods, and then applied to adder circuit 8 via pre-emphasis circuit 7 to be then applied to the memory system via FM modulator 9. Thus the detection can be facilitated for the inversion phenomenon of the memory system.
JP7778179A 1979-06-20 1979-06-20 Detecting system for inversion phenomenon Granted JPS561679A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7778179A JPS561679A (en) 1979-06-20 1979-06-20 Detecting system for inversion phenomenon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7778179A JPS561679A (en) 1979-06-20 1979-06-20 Detecting system for inversion phenomenon

Publications (2)

Publication Number Publication Date
JPS561679A true JPS561679A (en) 1981-01-09
JPS6252992B2 JPS6252992B2 (en) 1987-11-09

Family

ID=13643502

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7778179A Granted JPS561679A (en) 1979-06-20 1979-06-20 Detecting system for inversion phenomenon

Country Status (1)

Country Link
JP (1) JPS561679A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01151682U (en) * 1988-04-12 1989-10-19

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6477153A (en) * 1987-09-18 1989-03-23 Mitsubishi Electric Corp Power module
JPH02122592U (en) * 1989-03-17 1990-10-08

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01151682U (en) * 1988-04-12 1989-10-19

Also Published As

Publication number Publication date
JPS6252992B2 (en) 1987-11-09

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