KR880700402A - 비디오레코더에서 헤드스위칭신호 및 수직동기신호를 발생시키기 위한 처리방법 - Google Patents

비디오레코더에서 헤드스위칭신호 및 수직동기신호를 발생시키기 위한 처리방법

Info

Publication number
KR880700402A
KR880700402A KR870700485A KR870700485A KR880700402A KR 880700402 A KR880700402 A KR 880700402A KR 870700485 A KR870700485 A KR 870700485A KR 870700485 A KR870700485 A KR 870700485A KR 880700402 A KR880700402 A KR 880700402A
Authority
KR
South Korea
Prior art keywords
signal
processing method
video recorder
rotation
vertical synchronization
Prior art date
Application number
KR870700485A
Other languages
English (en)
Other versions
KR940007581B1 (ko
Inventor
그라임 귄터
Original Assignee
롤프-디이터 베르거
도이체 톰손-브란트 게엠베하
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 롤프-디이터 베르거, 도이체 톰손-브란트 게엠베하 filed Critical 롤프-디이터 베르거
Publication of KR880700402A publication Critical patent/KR880700402A/ko
Application granted granted Critical
Publication of KR940007581B1 publication Critical patent/KR940007581B1/ko

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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/12—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams
    • G11B15/14—Masking or switching periodically, e.g. of rotating heads

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

내용 없음

Description

비디오레코더에서 헤드스위칭신호 및 수직동기신호를 발생시키기 위한 처리방법.
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제 1 도는 2개의 주사헤드쌍을 가진 헤드드럼이다.

Claims (1)

  1. 헤드드럼의 회전마다 발생되는 신호를 사용해서 n개의 주사헤드를 가진 헤드드럼을 가진 비디오레코더에서 헤드스위칭 신호 및 수직동기신호를 발생시키기 위한 처리방법에 있어서, 회전마다 발생되는 신호(I)가 시점 to에서 헤드드럼이 한번 회전하는 시간에 대해 시간측정을 시작하고, 시간측정의 시작에서부터 실제로 얻어지는, 헤드드럼의 회전각에 상응하는 측정값이 미리 주어진 각각의 측정값과 비교되고, 일치되면 신호(I') 가 나오게 되는데, 이때 비교전에 미리주어진 측정치는 한번의 회전의 일부에 해당하는 인자(360°/α)로 나누어지며, 이때(a)는 유도된신호(I)에 의해 형성된 기준각과 관련된 주사헤드가 이루는 각을 표시하는 것을 특징으로 하는 비디오레코더에서 헤드 스위칭신호 및 수직동기신호를 발생시키기 위한 처리방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019870700485A 1984-10-05 1985-10-09 비디오 레코더에서 헤드스위칭신호 및 수직동기신호를 발생시키기 위한 방법 KR940007581B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3436457A DE3436457A1 (de) 1984-10-05 1984-10-05 Verfahren zur erzeugung des kopfschaltsignals und des vertikalsynchronsignals bei videorecordern
PCT/EP1985/000523 WO1987002500A1 (en) 1984-10-05 1985-10-09 Process for generating the head switching signal and the vertical synchronization signal in video recorders

Publications (2)

Publication Number Publication Date
KR880700402A true KR880700402A (ko) 1988-03-15
KR940007581B1 KR940007581B1 (ko) 1994-08-20

Family

ID=6247110

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870700485A KR940007581B1 (ko) 1984-10-05 1985-10-09 비디오 레코더에서 헤드스위칭신호 및 수직동기신호를 발생시키기 위한 방법

Country Status (4)

Country Link
EP (1) EP0239572B1 (ko)
KR (1) KR940007581B1 (ko)
DE (1) DE3436457A1 (ko)
WO (1) WO1987002500A1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100472803B1 (ko) * 1995-08-28 2005-05-17 소니 가부시끼 가이샤 헤드스위칭신호의조정장치및방법

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19540752A1 (de) * 1995-11-02 1997-05-07 Thomson Brandt Gmbh Verfahren und Schaltung zur Erzeugung von synchronen Steuersignalen in Videorekordern
KR100225910B1 (ko) 1996-04-04 1999-10-15 구자홍 액정표시장치(liquid crystal display device)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1208511B (de) * 1961-06-19 1966-01-05 Continental Elektro Ind Ag Aus einer Grob- und einer Feinmessvorrichtung bestehende digitale Winkelmesseinrichtung
JPS52109815U (ko) * 1976-02-18 1977-08-20
FR2450014B1 (fr) * 1979-02-26 1985-12-27 Sony Corp Circuit d'asservissement pour magnetoscope
JPS56124105A (en) * 1980-03-06 1981-09-29 Toshiba Corp Rotary head switching circuit
JPS56127905A (en) * 1980-03-13 1981-10-07 Toshiba Corp Switching device for rotary magnetic head of magnetic recording and reproducing device
US4600953A (en) * 1983-02-14 1986-07-15 Hitachi, Ltd. Head switching signal producing circuit for a magnetic recording and reproducing apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100472803B1 (ko) * 1995-08-28 2005-05-17 소니 가부시끼 가이샤 헤드스위칭신호의조정장치및방법

Also Published As

Publication number Publication date
DE3436457A1 (de) 1986-04-10
DE3436457C2 (ko) 1992-07-09
EP0239572B1 (de) 1990-07-25
KR940007581B1 (ko) 1994-08-20
WO1987002500A1 (en) 1987-04-23
EP0239572A1 (de) 1987-10-07

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