WO1995017749A3 - Schrägspurmagnetbandaufzeichnungsgerät für digitale signale mit verschiedenen betriebsarten - Google Patents

Schrägspurmagnetbandaufzeichnungsgerät für digitale signale mit verschiedenen betriebsarten Download PDF

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Publication number
WO1995017749A3
WO1995017749A3 PCT/EP1994/004123 EP9404123W WO9517749A3 WO 1995017749 A3 WO1995017749 A3 WO 1995017749A3 EP 9404123 W EP9404123 W EP 9404123W WO 9517749 A3 WO9517749 A3 WO 9517749A3
Authority
WO
WIPO (PCT)
Prior art keywords
data
read
helical track
magnetic tape
recording
Prior art date
Application number
PCT/EP1994/004123
Other languages
English (en)
French (fr)
Other versions
WO1995017749A2 (de
Inventor
Juergen Kaaden
Peter Mahr
Original Assignee
Thomson Brandt Gmbh
Juergen Kaaden
Peter Mahr
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, Juergen Kaaden, Peter Mahr filed Critical Thomson Brandt Gmbh
Priority to JP7517144A priority Critical patent/JPH09506992A/ja
Priority to KR1019960702700A priority patent/KR960706164A/ko
Priority to EP95904456A priority patent/EP0737355A1/de
Publication of WO1995017749A2 publication Critical patent/WO1995017749A2/de
Publication of WO1995017749A3 publication Critical patent/WO1995017749A3/de

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
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • 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
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/1808—Driving of both record carrier and head
    • G11B15/1875—Driving of both record carrier and head adaptations for special effects or editing
    • 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
    • G11B15/4671—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling simultaneously the speed of the tape and the speed of the rotating head
    • 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
    • G11B27/30—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 the same track as the main recording
    • G11B27/3027—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 the same track as the main recording used signal is digitally coded
    • 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
    • H04N5/7824—Television signal recording using magnetic recording on tape with rotating magnetic heads
    • H04N5/7826—Television signal recording using magnetic recording on tape with rotating magnetic heads involving helical scanning of the magnetic tape
    • H04N5/78263—Television signal recording using magnetic recording on tape with rotating magnetic heads involving helical scanning of the magnetic tape for recording on tracks inclined relative to the direction of movement of the tape
    • H04N5/78266—Television signal recording using magnetic recording on tape with rotating magnetic heads involving helical scanning of the magnetic tape for recording on tracks inclined relative to the direction of movement of the tape using more than one track for the recording of one television field or frame, i.e. segmented recording
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N5/926—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback by pulse code modulation
    • H04N5/9261—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback by pulse code modulation involving data reduction
    • H04N5/9264—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback by pulse code modulation involving data reduction using transform coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

Beim Suchlauf eines Schrägspuraufzeichnungsgerätes weichen Auslese- und Aufzeichnungsspurwinkel voneinander ab. Dies hat zur Folge, daß wegen der Azimutenkopplung nur Spursegmente gelesen werden können. Bei digitalen Aufzeichnungssystemen tritt der Effekt auf, daß bei Videoaufzeichnungsgeräten mit starker Segmentierung (z.B. 12 Aufzeichnungsspuren pro Vollbild) und Datenreduktion (DCT), die bildweise Zusammengehörigkeit der Daten zweier benachbarter Spuren nicht mehr gegeben ist. Der Erfindung liegt die Aufgabe zugrunde, die beim Suchlauf auftretenden Störungen zu verringern. Das aufgezeichnete Nutzdatensignal ist normalerweise eingebettet in Synchronisierworte, Fehlerschutzdaten und Pointer, die anzeigen, wohin das nachfolgende Datenpaket samt der Fehlerschutzdaten im Bild gehört. Erfindungsgemäß wird die Abhängigkeit der Kopftrommel/Band-vorschubphase über den Bandvorschub so gesteuert, daß alle Pointer in einem Intervall mehrerer aufeinanderfolgender Spuren = Vollbilder gleichoft eingelesen werden. Auf diese Weise werden die beim Suchlauf auftretenden Störungen verringert. Insbesondere bei digitalen Schrägspurmagnetbandaufzeichnungsgeräten.
PCT/EP1994/004123 1993-12-22 1994-12-13 Schrägspurmagnetbandaufzeichnungsgerät für digitale signale mit verschiedenen betriebsarten WO1995017749A2 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP7517144A JPH09506992A (ja) 1993-12-22 1994-12-13 種々の動作モードを備えたディジタル信号用の傾斜トラック磁気テープの記録装置
KR1019960702700A KR960706164A (ko) 1993-12-22 1994-12-13 다른 동작 모드의 디지탈 신호를 위한 경사진 트랙의 자기 테이프 기록 장치(Helical track magnetic tape recorder for digital signals with various operating modes)
EP95904456A EP0737355A1 (de) 1993-12-22 1994-12-13 Schrägspurmagnetbandaufzeichnungsgerät für digitale signale mit verschiedenen betriebsarten

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4343809A DE4343809C2 (de) 1993-12-22 1993-12-22 Schrägspurmagnetbandaufzeichnungsgerät für digitale Signale mit verschiedenen Betriebsarten
DEP4343809.1 1993-12-22

Publications (2)

Publication Number Publication Date
WO1995017749A2 WO1995017749A2 (de) 1995-06-29
WO1995017749A3 true WO1995017749A3 (de) 1995-07-13

Family

ID=6505750

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1994/004123 WO1995017749A2 (de) 1993-12-22 1994-12-13 Schrägspurmagnetbandaufzeichnungsgerät für digitale signale mit verschiedenen betriebsarten

Country Status (5)

Country Link
EP (1) EP0737355A1 (de)
JP (1) JPH09506992A (de)
KR (1) KR960706164A (de)
DE (1) DE4343809C2 (de)
WO (1) WO1995017749A2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6389219B1 (en) * 1996-07-30 2002-05-14 Deutsche Thomson-Brandt Gmbh Method and device for controlling the phase relation between a head drum and tape feed system of a magnetic tape recording device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4774605A (en) * 1985-12-13 1988-09-27 Pioneer Electronic Corporation Rotary head type digital signal playback
US4872073A (en) * 1988-09-02 1989-10-03 Ampex Corporation Apparatus for playback of magnetically recorded data having a variable input rate
EP0538069A2 (de) * 1991-10-17 1993-04-21 Matsushita Electric Industrial Co., Ltd. Vorrichtung zum Aufnehmen/Wiedergeben von digitalen Daten auf/von einem Aufzeichnungsträger
EP0544279A2 (de) * 1991-11-27 1993-06-02 Canon Kabushiki Kaisha Wiedergabegerät
EP0564234A2 (de) * 1992-04-03 1993-10-06 Matsushita Electric Industrial Co., Ltd. Wiedergabegerät

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4930024A (en) * 1986-03-26 1990-05-29 Kabushiki Kaisha Toshiba Variable speed magnetic medium recording and playback apparatus
JPH07114040B2 (ja) * 1988-02-22 1995-12-06 アイワ株式会社 記録再生装置
JP2916162B2 (ja) * 1989-03-31 1999-07-05 株式会社東芝 記録再生装置
JPH04181884A (ja) * 1990-11-16 1992-06-29 Sony Corp 映像信号記録装置
EP0509594B1 (de) * 1991-04-18 1997-10-22 Koninklijke Philips Electronics N.V. System und Verfahren zur Verbesserung der Suchbetriebsart bei einem Video Recorder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4774605A (en) * 1985-12-13 1988-09-27 Pioneer Electronic Corporation Rotary head type digital signal playback
US4872073A (en) * 1988-09-02 1989-10-03 Ampex Corporation Apparatus for playback of magnetically recorded data having a variable input rate
EP0538069A2 (de) * 1991-10-17 1993-04-21 Matsushita Electric Industrial Co., Ltd. Vorrichtung zum Aufnehmen/Wiedergeben von digitalen Daten auf/von einem Aufzeichnungsträger
EP0544279A2 (de) * 1991-11-27 1993-06-02 Canon Kabushiki Kaisha Wiedergabegerät
EP0564234A2 (de) * 1992-04-03 1993-10-06 Matsushita Electric Industrial Co., Ltd. Wiedergabegerät

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DE WITH ET AL.: "AN EXPERIMENTAL DIGITAL CONSUMER HDTV RECORDER USING MC-DCT VIDEO COMPRESSION", IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, vol. 39, no. 4, NEW YORK US, pages 711 - 721, XP000423056 *

Also Published As

Publication number Publication date
WO1995017749A2 (de) 1995-06-29
EP0737355A1 (de) 1996-10-16
JPH09506992A (ja) 1997-07-08
DE4343809A1 (de) 1995-06-29
DE4343809C2 (de) 2002-10-31
KR960706164A (ko) 1996-11-08

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