GB1470315A - Circuits for producing vertical synchronizing signals - Google Patents

Circuits for producing vertical synchronizing signals

Info

Publication number
GB1470315A
GB1470315A GB2379974A GB2379974A GB1470315A GB 1470315 A GB1470315 A GB 1470315A GB 2379974 A GB2379974 A GB 2379974A GB 2379974 A GB2379974 A GB 2379974A GB 1470315 A GB1470315 A GB 1470315A
Authority
GB
United Kingdom
Prior art keywords
vertical
vertical synchronizing
synchronizing signals
circuits
pulse
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.)
Expired
Application number
GB2379974A
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.)
Hitachi Ltd
NEC Corp
Original Assignee
Hitachi 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 Hitachi Ltd, Nippon Electric Co Ltd filed Critical Hitachi Ltd
Publication of GB1470315A publication Critical patent/GB1470315A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/08—Separation of synchronising signals from picture signals
    • H04N5/10—Separation of line synchronising signal from frame synchronising signal or vice versa

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Synchronizing For Television (AREA)

Abstract

1470315 Vertical synchronizing pulse separator NIPPON ELECTRIC CO Ltd and HITACHI Ltd 29 May 1974 [31 May 1973] 23799/74 Heading H3T A circuit for producing a single vertical synchronizing pulse in response to a composite synchronizing signal comprises an integrator 15 receiving the synchronizing signals and feeding a transistor threshold circuit having an emitter input and biased at its base to be non-conducting at least for the integrated level produced by the vertical and equalizing pulses proceeding the vertical pulse.
GB2379974A 1973-05-31 1974-05-29 Circuits for producing vertical synchronizing signals Expired GB1470315A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6111173A JPS5330454B2 (en) 1973-05-31 1973-05-31

Publications (1)

Publication Number Publication Date
GB1470315A true GB1470315A (en) 1977-04-14

Family

ID=13161629

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2379974A Expired GB1470315A (en) 1973-05-31 1974-05-29 Circuits for producing vertical synchronizing signals

Country Status (4)

Country Link
JP (1) JPS5330454B2 (en)
BR (1) BR7404464D0 (en)
DE (1) DE2425975C3 (en)
GB (1) GB1470315A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5159227A (en) * 1974-11-20 1976-05-24 Matsushita Electric Ind Co Ltd SUICHOKUDOKISHINGOHATSUSEIKAIRO
JPS51101207A (en) * 1975-03-04 1976-09-07 Matsushita Electric Works Ltd Shindohonpuno kudosochi
JPS593064B2 (en) * 1977-05-09 1984-01-21 三洋電機株式会社 Vertical sync pulse extraction circuit
JPS5446963U (en) * 1977-09-08 1979-03-31
JPS5499853A (en) * 1978-01-19 1979-08-07 Sanden Corp Electromagnetic clutch
JPS54142451A (en) * 1978-04-28 1979-11-06 Sanden Corp Magnetic clutch
JPS5610048U (en) * 1979-07-02 1981-01-28
JPS6236760Y2 (en) * 1980-12-27 1987-09-18
JPS58136454U (en) * 1982-03-11 1983-09-13 田辺金属株式会社 Spout for soy sauce bottles, etc.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4874915A (en) * 1971-12-30 1973-10-09

Also Published As

Publication number Publication date
DE2425975B2 (en) 1979-08-23
DE2425975C3 (en) 1980-04-30
BR7404464D0 (en) 1975-01-21
DE2425975A1 (en) 1975-01-02
JPS5330454B2 (en) 1978-08-26
JPS5011530A (en) 1975-02-06

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19940528