JPS5782216A - Power failure countermeasure device in magnetic recording - Google Patents

Power failure countermeasure device in magnetic recording

Info

Publication number
JPS5782216A
JPS5782216A JP55156202A JP15620280A JPS5782216A JP S5782216 A JPS5782216 A JP S5782216A JP 55156202 A JP55156202 A JP 55156202A JP 15620280 A JP15620280 A JP 15620280A JP S5782216 A JPS5782216 A JP S5782216A
Authority
JP
Japan
Prior art keywords
data
power failure
memory
circuit
magnetic recording
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
JP55156202A
Other languages
Japanese (ja)
Other versions
JPH022202B2 (en
Inventor
Akira Matsuoka
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.)
Omron Corp
Original Assignee
Tateisi Electronics Co
Omron Tateisi Electronics Co
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 Tateisi Electronics Co, Omron Tateisi Electronics Co filed Critical Tateisi Electronics Co
Priority to JP55156202A priority Critical patent/JPS5782216A/en
Publication of JPS5782216A publication Critical patent/JPS5782216A/en
Publication of JPH022202B2 publication Critical patent/JPH022202B2/ja
Granted legal-status Critical Current

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
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing

Landscapes

  • Digital Magnetic Recording (AREA)

Abstract

PURPOSE:To make recording efficiently, by comparing the data of a memory with the data of a magnetic recording means after the restoration of power failure and recording the memory data to a magnetic recording means which makes recording at the production of power failure newly after the coincidence. CONSTITUTION:If a power failure takes place on the way when a data is written on a cassette tape, a power failure generation detecting signal 14 is inputted to a control circuit 10, and a power failure detection flag of a memory 16 is set. After the restoration of power failure, the circuit 10 performs write-in twice from the part of write-in this time for the cassette tape, for an arbitrary space and tape end mark TM and performs erasing processing of 500mm.. Next, the circuit 10 rewinds tape until the data of the memory 16 coincides with the data recorded on the cassette tape. Further, the circuit 10 gives command to a cassette deck 15 so that the interrecord gap with the specified length is provided succeeding to the previous data and the data is again re-written.
JP55156202A 1980-11-05 1980-11-05 Power failure countermeasure device in magnetic recording Granted JPS5782216A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55156202A JPS5782216A (en) 1980-11-05 1980-11-05 Power failure countermeasure device in magnetic recording

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55156202A JPS5782216A (en) 1980-11-05 1980-11-05 Power failure countermeasure device in magnetic recording

Publications (2)

Publication Number Publication Date
JPS5782216A true JPS5782216A (en) 1982-05-22
JPH022202B2 JPH022202B2 (en) 1990-01-17

Family

ID=15622593

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55156202A Granted JPS5782216A (en) 1980-11-05 1980-11-05 Power failure countermeasure device in magnetic recording

Country Status (1)

Country Link
JP (1) JPS5782216A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5602805A (en) * 1994-01-20 1997-02-11 Ricoh Company, Ltd. Disk drive apparatus and method including power backup

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5288316A (en) * 1976-01-20 1977-07-23 Matsushita Electric Ind Co Ltd Data writing method to cassette tapes

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5288316A (en) * 1976-01-20 1977-07-23 Matsushita Electric Ind Co Ltd Data writing method to cassette tapes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5602805A (en) * 1994-01-20 1997-02-11 Ricoh Company, Ltd. Disk drive apparatus and method including power backup

Also Published As

Publication number Publication date
JPH022202B2 (en) 1990-01-17

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