CA1071757A - Head switching control apparatus for use in a video signal processing system - Google Patents

Head switching control apparatus for use in a video signal processing system

Info

Publication number
CA1071757A
CA1071757A CA271,974A CA271974A CA1071757A CA 1071757 A CA1071757 A CA 1071757A CA 271974 A CA271974 A CA 271974A CA 1071757 A CA1071757 A CA 1071757A
Authority
CA
Canada
Prior art keywords
video signal
pulses
heads
pulse
state
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
CA271,974A
Other languages
English (en)
French (fr)
Inventor
Ichitaro Sato
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of CA1071757A publication Critical patent/CA1071757A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

  • Television Signal Processing For Recording (AREA)
CA271,974A 1976-02-18 1977-02-17 Head switching control apparatus for use in a video signal processing system Expired CA1071757A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1976017104U JPS52109815U (US20020095090A1-20020718-M00002.png) 1976-02-18 1976-02-18

Publications (1)

Publication Number Publication Date
CA1071757A true CA1071757A (en) 1980-02-12

Family

ID=11934707

Family Applications (1)

Application Number Title Priority Date Filing Date
CA271,974A Expired CA1071757A (en) 1976-02-18 1977-02-17 Head switching control apparatus for use in a video signal processing system

Country Status (10)

Country Link
US (1) US4120007A (US20020095090A1-20020718-M00002.png)
JP (1) JPS52109815U (US20020095090A1-20020718-M00002.png)
AT (1) AT352424B (US20020095090A1-20020718-M00002.png)
AU (1) AU508765B2 (US20020095090A1-20020718-M00002.png)
CA (1) CA1071757A (US20020095090A1-20020718-M00002.png)
DE (1) DE2706608A1 (US20020095090A1-20020718-M00002.png)
FR (1) FR2341995A1 (US20020095090A1-20020718-M00002.png)
GB (1) GB1537411A (US20020095090A1-20020718-M00002.png)
IT (1) IT1086628B (US20020095090A1-20020718-M00002.png)
NL (1) NL7701783A (US20020095090A1-20020718-M00002.png)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4287533A (en) * 1977-04-01 1981-09-01 General Signal Corporation Apparatus for recording and playing back radar video with conventional video recorder
US4346397A (en) * 1978-01-23 1982-08-24 Victor Company Of Japan, Ltd. Apparatus for reproducing a video signal of one system with conversion to a video signal of another system
JPS54133817A (en) * 1978-04-08 1979-10-17 Sony Corp Recording regenerator for video signal
US4203138A (en) * 1978-07-14 1980-05-13 Elenbaas William J Video signal recording system with delayed vertical sync
CA1157939A (en) * 1980-07-14 1983-11-29 Yoshizumi Watatani Noise elimination circuit in a magnetic recording and reproducing apparatus
US4388657A (en) * 1980-11-25 1983-06-14 Rca Corporation Search-mode arrangement for VTR
AT369605B (de) * 1981-02-06 1983-01-25 Philips Nv Wiedergabegeraet
US4965825A (en) * 1981-11-03 1990-10-23 The Personalized Mass Media Corporation Signal processing apparatus and methods
EP0114344B1 (de) * 1982-12-27 1988-03-16 TELEFUNKEN Fernseh und Rundfunk GmbH Wiedergabeeinrichtung für ein mit mehreren Köpfen aufgezeichnetes Digitalsignal
EP0116926B1 (en) * 1983-02-14 1987-01-21 Hitachi, Ltd. Magnetic recording and reproducing apparatus
DE3306791A1 (de) * 1983-02-26 1984-08-30 Robert Bosch Gmbh, 7000 Stuttgart Schaltungsanordnung in einem video-magnetbandgeraet
JPS6069975A (ja) * 1983-09-26 1985-04-20 Victor Co Of Japan Ltd 変速再生時における回転ヘツドの再生信号切換回路
KR900001769B1 (ko) * 1984-06-26 1990-03-19 가부시끼가이샤 히다찌세이사꾸쇼 영상신호 재생장치의 스큐왜곡 보정회로
DE3435649A1 (de) * 1984-09-28 1986-04-10 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen Spurnachgesteuertes magnetbandgeraet mit querspuraufzeichnung
DE3436457A1 (de) * 1984-10-05 1986-04-10 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen Verfahren zur erzeugung des kopfschaltsignals und des vertikalsynchronsignals bei videorecordern
JPS61255548A (ja) * 1985-05-07 1986-11-13 Alps Electric Co Ltd 磁気記録再生装置
US4686582A (en) * 1986-01-06 1987-08-11 Eastman Kodak Company Head switching in high resolution video reproduction apparatus
US4739419A (en) * 1986-01-06 1988-04-19 Eastman Kodak Company Apparatus for eliminating midfield skew error by delaying the lower half field of a T M format video signal to be recorded on the second of two tracks
US4752839A (en) * 1986-01-06 1988-06-21 Eastman Kodak Company Head switching in high resolution video reproduction apparatus
US4851935A (en) * 1986-05-14 1989-07-25 Mitsumi Electric Co., Ltd. Drum assembly for a magnetic recording and reproducing apparatus
DE3629481A1 (de) * 1986-08-29 1988-03-03 Thomson Brandt Gmbh Videorecorder
DE3806330A1 (de) * 1988-02-27 1989-09-07 Broadcast Television Syst Verfahren zur umschaltung von wiedergabesignalen in einem videomagnetbandgeraet
US5223941A (en) * 1989-04-28 1993-06-29 Victor Company Of Japan, Ltd. Helical scan type playback apparatus for video data recorded on magnetic tape
GB2234622B (en) * 1989-07-10 1993-10-06 Samsung Electronics Co Ltd An fm signal transfer-recording system for a vtr
JPH03212081A (ja) * 1990-01-17 1991-09-17 Sharp Corp 磁気記録再生装置
GB2250627B (en) * 1990-11-22 1994-09-07 Gold Star Co Head cleaner for VCR and automatic head cleaning apparatus and method
DE4226688B4 (de) * 1992-08-12 2004-07-08 Deutsche Thomson-Brandt Gmbh Schaltung zur Steuerung der Aufnahmeströme der Videoköpfe eines Videorecorders

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1060147A (en) * 1964-08-04 1967-03-01 Rank Bush Murphy Ltd Transducer head switching arrangements
FR1444458A (fr) * 1964-08-04 1966-07-01 Rank Bush Murphy Ltd Système de commutation pour transducteurs de télévision et similaires
US3580992A (en) * 1967-06-19 1971-05-25 Sony Corp Multi-head magnetic recording and reproducing device for video signals featuring head switching in the record mode
US3600508A (en) * 1969-07-07 1971-08-17 Int Video Corp Video tape recorder with editing feature and improved tape speed control
DE2035685A1 (de) * 1969-08-04 1971-04-08 Westel Co Aufzeichnungsgerät fur Videosignale
JPS4986014U (US20020095090A1-20020718-M00002.png) * 1972-11-11 1974-07-25
US3838451A (en) * 1973-06-15 1974-09-24 Matsushita Electric Ind Co Ltd Magnetic tape reproducing system having secondary shorting of a rotary transformer for head switching
JPS5739597B2 (US20020095090A1-20020718-M00002.png) * 1974-04-08 1982-08-21

Also Published As

Publication number Publication date
NL7701783A (nl) 1977-08-22
JPS52109815U (US20020095090A1-20020718-M00002.png) 1977-08-20
FR2341995A1 (fr) 1977-09-16
AU508765B2 (en) 1980-04-03
GB1537411A (en) 1978-12-29
US4120007A (en) 1978-10-10
DE2706608C2 (US20020095090A1-20020718-M00002.png) 1987-01-08
FR2341995B1 (US20020095090A1-20020718-M00002.png) 1982-08-27
ATA112677A (de) 1979-02-15
DE2706608A1 (de) 1977-08-25
AT352424B (de) 1979-09-25
IT1086628B (it) 1985-05-28
AU2220877A (en) 1978-08-17

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Legal Events

Date Code Title Description
MKEX Expiry