SG47093G - Video tape recorder - Google Patents

Video tape recorder

Info

Publication number
SG47093G
SG47093G SG47093A SG47093A SG47093G SG 47093 G SG47093 G SG 47093G SG 47093 A SG47093 A SG 47093A SG 47093 A SG47093 A SG 47093A SG 47093 G SG47093 G SG 47093G
Authority
SG
Singapore
Prior art keywords
signals
correction
pulse transmitter
control head
supplied
Prior art date
Application number
SG47093A
Original Assignee
Thomson Brandt Gmbh
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 Thomson Brandt Gmbh filed Critical Thomson Brandt Gmbh
Publication of SG47093G publication Critical patent/SG47093G/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/52—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with simultaneous movement of head and record carrier, e.g. rotation of head
    • G11B5/53—Disposition or mounting of heads on rotating support
    • 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
    • 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
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/46—Controlling, regulating, or indicating speed
    • G11B15/467—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven
    • G11B15/4673—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the tape while the head is rotating
    • G11B15/4675—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the tape while the head is rotating with provision for information tracking
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/90—Tape-like record carriers

Abstract

The invention relates to a correction of misadjustments, particularly of positioning tolerances of a pulse transmitter (1) generating signals by means of the rotation of the head drum and of a control head (2) recording and reproducing signals. Signal timing deviations both of the pulse transmitter (1) and of the control head (2) are evaluated in a comparison circuit (5,6) with respect to the nominal values prescribed by a respective system in a service adjustment and stored as correction signals (3,4) in a non-volatile memory (7,8). After completion of the adjustment, the correction signals (3,4) are added to the signals supplied or to be supplied by the pulse transmitter (1) and/or control head (2) during recording and during replay for a timing correction. <IMAGE>
SG47093A 1985-08-08 1993-04-16 Video tape recorder SG47093G (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853528452 DE3528452A1 (en) 1985-08-08 1985-08-08 VIDEO RECORDER

Publications (1)

Publication Number Publication Date
SG47093G true SG47093G (en) 1993-07-09

Family

ID=6278013

Family Applications (1)

Application Number Title Priority Date Filing Date
SG47093A SG47093G (en) 1985-08-08 1993-04-16 Video tape recorder

Country Status (7)

Country Link
EP (1) EP0212390B1 (en)
JP (1) JP2607242B2 (en)
KR (1) KR950015003B1 (en)
AT (1) ATE83113T1 (en)
DE (2) DE3528452A1 (en)
HK (1) HK79494A (en)
SG (1) SG47093G (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3810988C1 (en) * 1988-03-31 1989-05-24 Nokia Graetz Gmbh, 7000 Stuttgart, De
KR0185910B1 (en) * 1994-09-29 1999-04-15 김광호 Method and apparatus for head switching auto adjusting of multi formula vtr

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3648141A (en) * 1971-03-11 1972-03-07 Honeywell Inc Tape drive error-cancelling system
AT317314B (en) * 1972-08-23 1974-08-26 Philips Nv Recording and reproducing device
NL7711634A (en) * 1977-10-24 1979-04-26 Philips Nv TACHOMETER SYSTEM.
US4531166A (en) * 1981-03-16 1985-07-23 Storage Technology Corporation Magnetic tape drive with adaptive servo
US4490755A (en) * 1981-07-09 1984-12-25 Victor Company Of Japan, Ltd. Recording and reproducing video signals at selectable different tape traveling speeds from plural video head pairs
JPS5945772A (en) * 1982-09-08 1984-03-14 Hitachi Ltd Automatic adjusting device of magnetic video recorder and reproducer
JPS60111363A (en) * 1983-11-21 1985-06-17 Victor Co Of Japan Ltd Servo circuit of image signal processor
JPS60150259A (en) * 1984-01-18 1985-08-07 Victor Co Of Japan Ltd Servo circuit of magnetic recording and reproducing device

Also Published As

Publication number Publication date
DE3528452A1 (en) 1987-02-19
JP2607242B2 (en) 1997-05-07
JPS6234321A (en) 1987-02-14
EP0212390A2 (en) 1987-03-04
EP0212390B1 (en) 1992-12-02
KR870002552A (en) 1987-03-31
ATE83113T1 (en) 1992-12-15
DE3687192D1 (en) 1993-01-14
EP0212390A3 (en) 1989-01-18
HK79494A (en) 1994-08-19
DE3528452C2 (en) 1993-04-22
KR950015003B1 (en) 1995-12-21

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