JPS5737789A - Readout system for index of magnetic recording medium - Google Patents

Readout system for index of magnetic recording medium

Info

Publication number
JPS5737789A
JPS5737789A JP11175880A JP11175880A JPS5737789A JP S5737789 A JPS5737789 A JP S5737789A JP 11175880 A JP11175880 A JP 11175880A JP 11175880 A JP11175880 A JP 11175880A JP S5737789 A JPS5737789 A JP S5737789A
Authority
JP
Japan
Prior art keywords
index
read
signal
position indication
circuit
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
JP11175880A
Other languages
Japanese (ja)
Inventor
Keitarou Imaizumi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11175880A priority Critical patent/JPS5737789A/en
Publication of JPS5737789A publication Critical patent/JPS5737789A/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
    • 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

Landscapes

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

Abstract

PURPOSE:To enable the reproduction of striped index parts when the index parts can not be reproduced by a magnetic tape device which uses a rotary head, by performing logical operation between a read head position indication signal and an index read output signal. CONSTITUTION:A read head position indication signal 12 which indicates that a read head 1 is at an index N part showing a track number (n) and a read output signal 14 outputted by reading an index N by the read head 1 are operated logically to detect the reproduction of the index N being disabled owing to a dropout. For example, the position indication signal 12 obtained through a head position detector 3 and a monostable multivibrator 4 and the read output signal 14 obtained through an amplifier 5 and a level comparing circuit 6 are inputted to an AND circuit 7 and an exclusive OR circuit 8 to output a detection signal 15 indicating that the index N can not be reproduced when so.
JP11175880A 1980-08-15 1980-08-15 Readout system for index of magnetic recording medium Pending JPS5737789A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11175880A JPS5737789A (en) 1980-08-15 1980-08-15 Readout system for index of magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11175880A JPS5737789A (en) 1980-08-15 1980-08-15 Readout system for index of magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS5737789A true JPS5737789A (en) 1982-03-02

Family

ID=14569437

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11175880A Pending JPS5737789A (en) 1980-08-15 1980-08-15 Readout system for index of magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS5737789A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62127562A (en) * 1985-11-27 1987-06-09 Honda Motor Co Ltd Transmission device for vehicle
JPS62127561A (en) * 1985-11-27 1987-06-09 Honda Motor Co Ltd Transmission device for vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62127562A (en) * 1985-11-27 1987-06-09 Honda Motor Co Ltd Transmission device for vehicle
JPS62127561A (en) * 1985-11-27 1987-06-09 Honda Motor Co Ltd Transmission device for vehicle

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