HK8596A - Process and device for copying magnetic tapes - Google Patents

Process and device for copying magnetic tapes

Info

Publication number
HK8596A
HK8596A HK8596A HK8596A HK8596A HK 8596 A HK8596 A HK 8596A HK 8596 A HK8596 A HK 8596A HK 8596 A HK8596 A HK 8596A HK 8596 A HK8596 A HK 8596A
Authority
HK
Hong Kong
Prior art keywords
signals
information
recorded
magnetic tapes
copied
Prior art date
Application number
HK8596A
Inventor
Norbert Eigeldinger
Michael Bildl
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 HK8596A publication Critical patent/HK8596A/en

Links

Classifications

    • 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
    • G11B27/322—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 used signal is digitally coded
    • G11B27/324—Duty cycle modulation of control pulses, e.g. VHS-CTL-coding systems, RAPID-time code, VASS- or VISS-cue signals
    • 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
    • G11B5/86—Re-recording, i.e. transcribing information from one magnetisable record carrier on to one or more similar or dissimilar record carriers
    • 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
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/022—Electronic editing of analogue information signals, e.g. audio or video signals
    • G11B27/024—Electronic editing of analogue information signals, e.g. audio or video signals on tapes
    • 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
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G11B27/032—Electronic editing of digitised analogue information signals, e.g. audio or video signals on tapes
    • 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
    • G11B2220/00—Record carriers by type
    • G11B2220/90—Tape-like record carriers
    • 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
    • G11B2220/91—Helical scan format, wherein tracks are slightly tilted with respect to tape direction, e.g. VHS, DAT, DVC, AIT or exabyte

Abstract

In conventional copying processes, signals recorded in addition to the actual useful information, e.g. control signals for the synchronisation of recording-head switchover impulses, are not copied. Additional information can, however, be encoded in a variation of these signals, and this information is thus also not copied. In the invention, digital information recorded on the control track and detected by a reproduction device is transmitted by a transmission stage to a recording device where it is recorded again in digitally encoded form in an appropriate time gate on the control track. The process and device are of use in the copying of magnetic tapes containing address or index marks.
HK8596A 1989-08-25 1996-01-18 Process and device for copying magnetic tapes HK8596A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3928190 1989-08-25
DE3932059A DE3932059A1 (en) 1989-08-25 1989-08-26 METHOD AND DEVICE FOR COPYING MAGNETIC BANDS

Publications (1)

Publication Number Publication Date
HK8596A true HK8596A (en) 1996-01-26

Family

ID=25884432

Family Applications (1)

Application Number Title Priority Date Filing Date
HK8596A HK8596A (en) 1989-08-25 1996-01-18 Process and device for copying magnetic tapes

Country Status (12)

Country Link
EP (1) EP0489040B1 (en)
JP (1) JPH05500725A (en)
KR (1) KR0158439B1 (en)
CN (1) CN1028573C (en)
AT (1) ATE99075T1 (en)
AU (1) AU6172090A (en)
DE (2) DE3932059A1 (en)
ES (1) ES2048500T3 (en)
HK (1) HK8596A (en)
HU (1) HUT63266A (en)
MY (1) MY106452A (en)
WO (1) WO1991003044A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9219709D0 (en) * 1992-09-17 1992-10-28 D2B Systems Co Ltd Apparatus interconnected for the communication of control messages
MY121551A (en) * 1994-12-22 2006-02-28 Sony Corp Recording and reproducing system for protecting copyrighted data

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5897737U (en) * 1981-12-22 1983-07-02 日本ビクター株式会社 magnetic recording and reproducing device

Also Published As

Publication number Publication date
EP0489040A1 (en) 1992-06-10
WO1991003044A1 (en) 1991-03-07
AU6172090A (en) 1991-04-03
HU9200593D0 (en) 1992-05-28
DE59003978D1 (en) 1994-02-03
JPH05500725A (en) 1993-02-12
MY106452A (en) 1995-05-30
ATE99075T1 (en) 1994-01-15
EP0489040B1 (en) 1993-12-22
HUT63266A (en) 1993-07-28
DE3932059A1 (en) 1991-02-28
ES2048500T3 (en) 1994-03-16
KR920704275A (en) 1992-12-19
CN1028573C (en) 1995-05-24
CN1050455A (en) 1991-04-03
KR0158439B1 (en) 1999-01-15

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)