JPS5651069A - Magnetic tape device - Google Patents

Magnetic tape device

Info

Publication number
JPS5651069A
JPS5651069A JP12547479A JP12547479A JPS5651069A JP S5651069 A JPS5651069 A JP S5651069A JP 12547479 A JP12547479 A JP 12547479A JP 12547479 A JP12547479 A JP 12547479A JP S5651069 A JPS5651069 A JP S5651069A
Authority
JP
Japan
Prior art keywords
recording
information
recorded
index
index information
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.)
Granted
Application number
JP12547479A
Other languages
Japanese (ja)
Other versions
JPS635830B2 (en
Inventor
Junichi Daiko
Mitsuo Yamashita
Tomohisa Yoshimaru
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP12547479A priority Critical patent/JPS5651069A/en
Publication of JPS5651069A publication Critical patent/JPS5651069A/en
Publication of JPS635830B2 publication Critical patent/JPS635830B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)

Abstract

PURPOSE: To reduce the retrieval time delay of index information and to decrease the retrieval time of video information, by recording a plurality of sets of the same index information on index recording tracks.
CONSTITUTION: Since the amount of recording for index information is very less for an index recording track 71 to the amount of recording of video information, the index information with equal contents is recorded for a plurality of number of times. That is, the same information of each item block 26 is, for example, recorded sequentially six times. Thus, the 1st item block is recorded at the location of the block numbers 2, 44..., and the 14th item block is recorded at the location of 41,...,251. Thus, the retrieval time delay of index information accompanied with the code error due to the effect such as dropout can remarkably be reduced, allowing to decrease the video retrieval time.
COPYRIGHT: (C)1981,JPO&Japio
JP12547479A 1979-09-29 1979-09-29 Magnetic tape device Granted JPS5651069A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12547479A JPS5651069A (en) 1979-09-29 1979-09-29 Magnetic tape device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12547479A JPS5651069A (en) 1979-09-29 1979-09-29 Magnetic tape device

Publications (2)

Publication Number Publication Date
JPS5651069A true JPS5651069A (en) 1981-05-08
JPS635830B2 JPS635830B2 (en) 1988-02-05

Family

ID=14910976

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12547479A Granted JPS5651069A (en) 1979-09-29 1979-09-29 Magnetic tape device

Country Status (1)

Country Link
JP (1) JPS5651069A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56148776A (en) * 1980-03-27 1981-11-18 Licentia Gmbh Method of detecting storage location on recording carrier
JPH0550202A (en) * 1991-08-22 1993-03-02 Nippon Steel Corp Method for grinding billet
US5791968A (en) * 1992-10-21 1998-08-11 Kawasaki Jukogyo Kabushiki Kaisha Grinding method and grinding system for steels

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01131336U (en) * 1988-03-01 1989-09-06

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5492146A (en) * 1977-12-29 1979-07-21 Matsushita Electric Ind Co Ltd Information retrieval unit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5492146A (en) * 1977-12-29 1979-07-21 Matsushita Electric Ind Co Ltd Information retrieval unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56148776A (en) * 1980-03-27 1981-11-18 Licentia Gmbh Method of detecting storage location on recording carrier
JPH0550202A (en) * 1991-08-22 1993-03-02 Nippon Steel Corp Method for grinding billet
US5791968A (en) * 1992-10-21 1998-08-11 Kawasaki Jukogyo Kabushiki Kaisha Grinding method and grinding system for steels

Also Published As

Publication number Publication date
JPS635830B2 (en) 1988-02-05

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