JPS5632886A - Still reproducing device of vtr - Google Patents

Still reproducing device of vtr

Info

Publication number
JPS5632886A
JPS5632886A JP10822479A JP10822479A JPS5632886A JP S5632886 A JPS5632886 A JP S5632886A JP 10822479 A JP10822479 A JP 10822479A JP 10822479 A JP10822479 A JP 10822479A JP S5632886 A JPS5632886 A JP S5632886A
Authority
JP
Japan
Prior art keywords
motor
width
driven
vertical blanking
blanking interval
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
JP10822479A
Other languages
Japanese (ja)
Inventor
Nobuo Azuma
Hideo Nishijima
Isao Fukushima
Katsuo Mori
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 JP10822479A priority Critical patent/JPS5632886A/en
Publication of JPS5632886A publication Critical patent/JPS5632886A/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
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/782—Television signal recording using magnetic recording on tape
    • H04N5/783—Adaptations for reproducing at a rate different from the recording rate

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To improve the noise driving-in precision by sweeping a pulse, applied to a capstan motor for intermittent drive, slowly from a small enough width for the motor not to turn up to a width large enough for the motor to turn sufficiently. CONSTITUTION:On arrival of still command (f), delay is provided until a run in the previous mode stops and then the 1st intermittent driving pulse is outputted. Next, a delay time is set to a timer built in microcompouter 9. In this state, whether a noise band has been driven into a vertical blanking interval or not is judged, and when not, the next driving pulse of wide width is generated to drive capstant motor 6, carrying on dropout detection. This operation is repeated several times and when the noise band is driven into the vertical blanking interval, motor 6 is stopped.
JP10822479A 1979-08-27 1979-08-27 Still reproducing device of vtr Pending JPS5632886A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10822479A JPS5632886A (en) 1979-08-27 1979-08-27 Still reproducing device of vtr

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10822479A JPS5632886A (en) 1979-08-27 1979-08-27 Still reproducing device of vtr

Publications (1)

Publication Number Publication Date
JPS5632886A true JPS5632886A (en) 1981-04-02

Family

ID=14479186

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10822479A Pending JPS5632886A (en) 1979-08-27 1979-08-27 Still reproducing device of vtr

Country Status (1)

Country Link
JP (1) JPS5632886A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57210783A (en) * 1981-06-19 1982-12-24 Victor Co Of Japan Ltd Magnetic reproducing device
WO1983004360A1 (en) * 1982-05-25 1983-12-08 Matsushita Electric Industrial Co., Ltd. Rotary head magnetic recorder/reproducer
KR100451772B1 (en) * 2002-02-05 2004-10-08 엘지산전 주식회사 Control Apparatus and Control Method of the Motor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57210783A (en) * 1981-06-19 1982-12-24 Victor Co Of Japan Ltd Magnetic reproducing device
WO1983004360A1 (en) * 1982-05-25 1983-12-08 Matsushita Electric Industrial Co., Ltd. Rotary head magnetic recorder/reproducer
US4617598A (en) * 1982-05-25 1986-10-14 Matsushita Electric Industrial Co., Ltd. Rotary head magnetic recorder/reproducer
KR100451772B1 (en) * 2002-02-05 2004-10-08 엘지산전 주식회사 Control Apparatus and Control Method of the Motor

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