JPS5613882A - Synchronous stabilizing device for video tape recorder - Google Patents

Synchronous stabilizing device for video tape recorder

Info

Publication number
JPS5613882A
JPS5613882A JP8875979A JP8875979A JPS5613882A JP S5613882 A JPS5613882 A JP S5613882A JP 8875979 A JP8875979 A JP 8875979A JP 8875979 A JP8875979 A JP 8875979A JP S5613882 A JPS5613882 A JP S5613882A
Authority
JP
Japan
Prior art keywords
period
output
monomulti
switch device
voltage
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.)
Pending
Application number
JP8875979A
Other languages
Japanese (ja)
Inventor
Shigeo Tanaka
Masahiko Motai
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP8875979A priority Critical patent/JPS5613882A/en
Publication of JPS5613882A publication Critical patent/JPS5613882A/en
Pending 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
    • H04N5/93—Regeneration of the television signal or of selected parts thereof
    • H04N5/932—Regeneration of analogue synchronisation signals

Landscapes

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

Abstract

PURPOSE:To secure the accurate stabilization of the vertical synchronous signal, by providing the switch device to the recorder, forming the specified DC level signal of the composite video signal with inclusion of the horizontal synchronous pulse and by the voltage of the first period obtained by switching the switch device and then producing the pseudo vertical synchronous signal by the voltage of the second period. CONSTITUTION:Monomulti-vibrator parts 12 and 13 deliver the pulses during periods T1 and T2 and at the rise and the fall of the switching pulse applied to terminal 11. Thus switch device 17 selects the side of compounding circuit 16 during periods T1 and T2 and then input side 18 of the reproduced composite video signal during other period. Output level E1 in period T1 is set by the output logic pulse of the first monomulti-vibrator part 12 as well as the output voltage of gate circuit 15 and compounding circuit part 16 each. In period T2 the output of the second monomulti-vibrator part 13 affects circuit 16 to set output level E2. Output level E2 is set so as to be turned into the pseudo vertical synchronous signal.
JP8875979A 1979-07-13 1979-07-13 Synchronous stabilizing device for video tape recorder Pending JPS5613882A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8875979A JPS5613882A (en) 1979-07-13 1979-07-13 Synchronous stabilizing device for video tape recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8875979A JPS5613882A (en) 1979-07-13 1979-07-13 Synchronous stabilizing device for video tape recorder

Publications (1)

Publication Number Publication Date
JPS5613882A true JPS5613882A (en) 1981-02-10

Family

ID=13951801

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8875979A Pending JPS5613882A (en) 1979-07-13 1979-07-13 Synchronous stabilizing device for video tape recorder

Country Status (1)

Country Link
JP (1) JPS5613882A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0119199A1 (en) * 1982-09-17 1984-09-26 Ampex Method and apparatus for producing an artificial vertical synchronizing signal for video tape recording.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0119199A1 (en) * 1982-09-17 1984-09-26 Ampex Method and apparatus for producing an artificial vertical synchronizing signal for video tape recording.
EP0311143A2 (en) * 1982-09-17 1989-04-12 Ampex Corporation Method and apparatus for producing an artificial synchronising signal

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