JPS4970544A - - Google Patents

Info

Publication number
JPS4970544A
JPS4970544A JP48098955A JP9895573A JPS4970544A JP S4970544 A JPS4970544 A JP S4970544A JP 48098955 A JP48098955 A JP 48098955A JP 9895573 A JP9895573 A JP 9895573A JP S4970544 A JPS4970544 A JP S4970544A
Authority
JP
Japan
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.)
Pending
Application number
JP48098955A
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 filed Critical
Publication of JPS4970544A publication Critical patent/JPS4970544A/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/1666—Error detection or correction of the data by redundancy in hardware where the redundant component is memory or memory area
    • G06F11/167—Error detection by comparing the memory output
    • 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
    • G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Digital Magnetic Recording (AREA)
JP48098955A 1972-09-18 1973-09-04 Pending JPS4970544A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00289779A US3805284A (en) 1972-09-18 1972-09-18 Digital data copy duplication method and apparatus utilizing bit to bit data verification

Publications (1)

Publication Number Publication Date
JPS4970544A true JPS4970544A (ja) 1974-07-08

Family

ID=23113054

Family Applications (2)

Application Number Title Priority Date Filing Date
JP48098955A Pending JPS4970544A (ja) 1972-09-18 1973-09-04
JP1983050296U Expired JPS6017090Y2 (ja) 1972-09-18 1983-04-06 デイジタル・デ−タ複製装置

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP1983050296U Expired JPS6017090Y2 (ja) 1972-09-18 1983-04-06 デイジタル・デ−タ複製装置

Country Status (4)

Country Link
US (1) US3805284A (ja)
JP (2) JPS4970544A (ja)
BE (1) BE804281A (ja)
GB (1) GB1394918A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5217838A (en) * 1975-08-01 1977-02-10 Tetsuro Nishitsuji Manufacturing method of synthetic resin mirror

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6047652B2 (ja) * 1978-02-10 1985-10-23 ソニー株式会社 カ−ド貼着する磁気テ−プの記録方法
US4375655A (en) * 1981-01-02 1983-03-01 Memory Control Technology Corporation Universal digital data copying system
US4410917A (en) * 1981-09-14 1983-10-18 Accurate Sound Corporation Method of and apparatus for recording information from a master medium onto a slave medium employing digital techniques
JPS58118009A (ja) * 1981-12-29 1983-07-13 Victor Co Of Japan Ltd デイジタル信号磁気記録再生装置
US4471390A (en) * 1982-06-25 1984-09-11 Dennison Manufacturing Company Flexible diskette data duplication
US4470084A (en) * 1982-07-28 1984-09-04 Cetec Corporation Stabilized bias system for magnetic tape read and write heads
JPS59107409A (ja) * 1982-12-09 1984-06-21 Victor Co Of Japan Ltd デイジタル信号の記録装置
US4628370A (en) * 1983-06-20 1986-12-09 Olympus Optical Co., Ltd. Apparatus for copying magnetic tape
JPH0823969B2 (ja) * 1984-01-11 1996-03-06 キヤノン株式会社 記録確認装置
US4638378A (en) * 1984-06-12 1987-01-20 Arrigo Zanessi Fidelity control during operation of duplicator machines
US4727509A (en) * 1984-06-28 1988-02-23 Information Exchange Systems, Inc. Master/slave system for replicating/formatting flexible magnetic diskettes
US4618897A (en) * 1985-02-11 1986-10-21 Ixi Laboratories, Inc. System for synchronizing plural data storage devices to a common master
GB8504765D0 (en) * 1985-02-25 1985-03-27 Gardner J P Magnetic recordings
US4899230A (en) * 1987-12-22 1990-02-06 Idb Corporation Taped data copying utilizing multiple addressable memories
EP0350016B1 (de) * 1988-07-08 1994-06-01 Tandberg Data A/S Verfahren und Einrichtung zum Duplizieren des Inhalts von Datenträgern
US5664094A (en) * 1990-04-03 1997-09-02 Canon Kk Method and apparatus for read-write-verification of data stored on an optical disc and stored in a buffer of an optical disk drive
JP3198550B2 (ja) * 1991-09-03 2001-08-13 ソニー株式会社 圧縮データ記録方法及び圧縮データ記録再生装置
JPH0636473A (ja) * 1992-07-16 1994-02-10 Matsushita Electric Ind Co Ltd 光情報記録装置及びその方法
US5706260A (en) * 1993-03-09 1998-01-06 Sony Corporation Apparatus for and method of synchronously recording signals onto a disk medium by a single head
US5819297A (en) * 1995-09-27 1998-10-06 Emc Corporation Method and apparatus for creating reliably duplicatable tape volumes without copying any padding
JP3189660B2 (ja) * 1996-01-30 2001-07-16 ソニー株式会社 信号符号化方法
US6131141A (en) * 1996-11-15 2000-10-10 Intelligent Computer Solutions, Inc. Method of and portable apparatus for determining and utilizing timing parameters for direct duplication of hard disk drives
US7046909B2 (en) 1999-12-03 2006-05-16 Mti Film, Llc System and method for identifying inconsistencies in duplicate digital videos
JP3937878B2 (ja) * 2002-03-06 2007-06-27 日本電気株式会社 磁気テープ装置及びその制御方法並びに磁気テープ装置制御用プログラム
US20080066192A1 (en) * 2006-09-07 2008-03-13 International Business Machines Corporation Keyless copy of encrypted data

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3368211A (en) * 1965-07-26 1968-02-06 Bell Telephone Labor Inc Verification of nrzi recording
US3551608A (en) * 1967-04-07 1970-12-29 Bell & Howell Co Discrepancy indicator for record duplicating apparatus

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL72748C (ja) * 1947-11-05
DE971068C (de) * 1949-12-02 1958-11-20 Standard Telephones and Cables Limited, London Prüfgerät für Nachrichtenaufzeichnungen
US2774056A (en) * 1954-04-12 1956-12-11 Loew S Inc Comparator device
US3012230A (en) * 1957-09-30 1961-12-05 Electronic Eng Co Computer format control buffer
BE633599A (ja) * 1962-06-20
US3268870A (en) * 1962-06-27 1966-08-23 Control Data Corp System and apparatus for automatic data collection
US3359548A (en) * 1964-03-27 1967-12-19 Ampex Magnetic recording and verifying system
US3345614A (en) * 1965-01-12 1967-10-03 Friden Inc Data translation system
DE1499757C3 (de) * 1966-12-16 1974-02-14 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltungsanordnung zur Regelung der Magnetbandgeschwindigkeit eines oder zweier Magnetbandgeräte
US3510857A (en) * 1967-06-16 1970-05-05 J C Kennedy Co Tape recording error check system
US3653011A (en) * 1970-04-15 1972-03-28 Ncr Co Three pole tip read after write transducer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3368211A (en) * 1965-07-26 1968-02-06 Bell Telephone Labor Inc Verification of nrzi recording
US3551608A (en) * 1967-04-07 1970-12-29 Bell & Howell Co Discrepancy indicator for record duplicating apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5217838A (en) * 1975-08-01 1977-02-10 Tetsuro Nishitsuji Manufacturing method of synthetic resin mirror

Also Published As

Publication number Publication date
BE804281A (fr) 1973-12-17
JPS6017090Y2 (ja) 1985-05-27
US3805284A (en) 1974-04-16
GB1394918A (en) 1975-05-21
JPS58179624U (ja) 1983-12-01

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