JPS5612184A - Skew preventive unit of vtr - Google Patents

Skew preventive unit of vtr

Info

Publication number
JPS5612184A
JPS5612184A JP8685579A JP8685579A JPS5612184A JP S5612184 A JPS5612184 A JP S5612184A JP 8685579 A JP8685579 A JP 8685579A JP 8685579 A JP8685579 A JP 8685579A JP S5612184 A JPS5612184 A JP S5612184A
Authority
JP
Japan
Prior art keywords
time
2alphah
signal
dropout
reproduced
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
JP8685579A
Other languages
Japanese (ja)
Inventor
Nobuo Azuma
Noboru Kojima
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
Original Assignee
Hitachi 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 filed Critical Hitachi Ltd
Priority to JP8685579A priority Critical patent/JPS5612184A/en
Publication of JPS5612184A publication Critical patent/JPS5612184A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

PURPOSE:To prevent the skew from occurring even when the variable-speed magnifying rate of VTR whose H matching between adjacent tracks in recording is not done, by delaying a reproduced signal by a fixed time every time when its dropout appears. CONSTITUTION:As two rotary heads differing in azimuth perform variable-speed reproduction, dropout (d) appears at reproduced envelope (c). At the point in time when dropout (d) appears, and excessive horizontal period of 2alphaH (alphaH; the number of shifts between adjacent tracks) is added to reproduced signal (b). For the purpose, every time when dropout signal (d) rises, reproduced video signal (b) and video signal (f) delayed by ¦2alphaH-H¦ time (H; horizontal synchronizing signal period) are changed alternately to obtain a video signal, so that the video signal has an excessive horizontal period of 2alphaH+¦2alphaH-H¦. Here, ¦2alphaETA-H¦ corresponds to a skew value, holding the continuation of H.
JP8685579A 1979-07-11 1979-07-11 Skew preventive unit of vtr Pending JPS5612184A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8685579A JPS5612184A (en) 1979-07-11 1979-07-11 Skew preventive unit of vtr

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8685579A JPS5612184A (en) 1979-07-11 1979-07-11 Skew preventive unit of vtr

Publications (1)

Publication Number Publication Date
JPS5612184A true JPS5612184A (en) 1981-02-06

Family

ID=13898421

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8685579A Pending JPS5612184A (en) 1979-07-11 1979-07-11 Skew preventive unit of vtr

Country Status (1)

Country Link
JP (1) JPS5612184A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5430718A (en) * 1977-08-12 1979-03-07 Victor Co Of Japan Ltd Magnetic recording-regeneration system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5430718A (en) * 1977-08-12 1979-03-07 Victor Co Of Japan Ltd Magnetic recording-regeneration system

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