JPS5771561A - Magnetic tape storage device - Google Patents

Magnetic tape storage device

Info

Publication number
JPS5771561A
JPS5771561A JP14656280A JP14656280A JPS5771561A JP S5771561 A JPS5771561 A JP S5771561A JP 14656280 A JP14656280 A JP 14656280A JP 14656280 A JP14656280 A JP 14656280A JP S5771561 A JPS5771561 A JP S5771561A
Authority
JP
Japan
Prior art keywords
data file
tape
magnetic tape
file
labels
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.)
Pending
Application number
JP14656280A
Other languages
Japanese (ja)
Inventor
Sadanobu Takashima
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP14656280A priority Critical patent/JPS5771561A/en
Publication of JPS5771561A publication Critical patent/JPS5771561A/en
Pending legal-status Critical Current

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
    • 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
    • G11B27/327—Table of contents
    • G11B27/328—Table of contents on a tape [TTOC]

Landscapes

  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)

Abstract

PURPOSE:To easily search a data file, by providing the second storage area between a tape rim end of a magnetic tape and a tape rim end marker (BOT), so that information of a data file stored between the BOT and a tape hub end marker (EOT) can be stored in said storage area. CONSTITUTION:Files labels FL1, FL2-FLn stored in an index storage are 56 are read out, it is confirmed that an objective data file exists in (n) pieces of the readout file labels FL1, FL2-FLn, and it is the i-th data file (1<=i<=n), a magnetic tape 50 is made to run until a BOT53 is detected, and after that, the magnetic tape 50 is made to run until a tape mark TM is detected (i-1)X3 times. In this way, a readout head is positioned at the head of the object i-th data file without reading out and confirming file labels HDR extending from the head of the data file storage area 55 to the (i-1)-th file label.
JP14656280A 1980-10-20 1980-10-20 Magnetic tape storage device Pending JPS5771561A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14656280A JPS5771561A (en) 1980-10-20 1980-10-20 Magnetic tape storage device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14656280A JPS5771561A (en) 1980-10-20 1980-10-20 Magnetic tape storage device

Publications (1)

Publication Number Publication Date
JPS5771561A true JPS5771561A (en) 1982-05-04

Family

ID=15410476

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14656280A Pending JPS5771561A (en) 1980-10-20 1980-10-20 Magnetic tape storage device

Country Status (1)

Country Link
JP (1) JPS5771561A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59182684A (en) * 1983-04-01 1984-10-17 Nippon Kogaku Kk <Nikon> Video signal recording device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59182684A (en) * 1983-04-01 1984-10-17 Nippon Kogaku Kk <Nikon> Video signal recording device

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