JPS5654631A - Magnetic reading device - Google Patents

Magnetic reading device

Info

Publication number
JPS5654631A
JPS5654631A JP12854079A JP12854079A JPS5654631A JP S5654631 A JPS5654631 A JP S5654631A JP 12854079 A JP12854079 A JP 12854079A JP 12854079 A JP12854079 A JP 12854079A JP S5654631 A JPS5654631 A JP S5654631A
Authority
JP
Japan
Prior art keywords
head
signal
delivered
tape
track
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
JP12854079A
Other languages
Japanese (ja)
Inventor
Nobuo Shimoma
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Seiko Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP12854079A priority Critical patent/JPS5654631A/en
Publication of JPS5654631A publication Critical patent/JPS5654631A/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
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/488—Disposition of heads
    • G11B5/4893—Disposition of heads relative to moving tape
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/49—Fixed mounting or arrangements, e.g. one head per track
    • 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
    • G11B15/12—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams

Landscapes

  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

PURPOSE:To obtain a low-cost track variation correcting device, by disposing several magentic heads in the travelling direction of the magnetic tape with some distance secured each and then compensating the spaces electrically by the synchornous compensating circuit. CONSTITUTION:When the magnetic tape 3 has a normal travelling, the signal of the head 6U is delivered with a delay equivalent to the travelled distance (d) of the head 7U. For this purpose, the signal of the head 6U is delivered through the delay circuit 9. In the same way, the signal of the head 5U is delivered through the delay circuit 8 as the signal which cannot be detected since the head 5U is out of the magnetic track of the tape 3. The output is small also for the signal of the head 7U. Then in case the tape 3 has a track variation to be turned into the state 4, the signal of the head 5U becomes maximum. And the signal outputs of the heads 6U and 7U are made small or turned to 0. In this instant, the signal is the 5U signal with a switching carried out from head 6U to the head 5U. In such way, a compensation can be given to the track variation.
JP12854079A 1979-10-05 1979-10-05 Magnetic reading device Pending JPS5654631A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12854079A JPS5654631A (en) 1979-10-05 1979-10-05 Magnetic reading device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12854079A JPS5654631A (en) 1979-10-05 1979-10-05 Magnetic reading device

Publications (1)

Publication Number Publication Date
JPS5654631A true JPS5654631A (en) 1981-05-14

Family

ID=14987275

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12854079A Pending JPS5654631A (en) 1979-10-05 1979-10-05 Magnetic reading device

Country Status (1)

Country Link
JP (1) JPS5654631A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58171702A (en) * 1982-04-02 1983-10-08 Nippon Kogaku Kk <Nikon> Reproducing device of magnetic recorded information
US4823235A (en) * 1986-02-06 1989-04-18 Fujitsu Limited Earth connection device in metal core printed circuit board
EP0590226A1 (en) * 1992-09-22 1994-04-06 Tandberg Data A/S Magnetic tape storage unit with improved ability to read data by using a set of multiple read elements

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58171702A (en) * 1982-04-02 1983-10-08 Nippon Kogaku Kk <Nikon> Reproducing device of magnetic recorded information
JPH0326442B2 (en) * 1982-04-02 1991-04-10 Nippon Kogaku Kk
US4823235A (en) * 1986-02-06 1989-04-18 Fujitsu Limited Earth connection device in metal core printed circuit board
EP0590226A1 (en) * 1992-09-22 1994-04-06 Tandberg Data A/S Magnetic tape storage unit with improved ability to read data by using a set of multiple read elements

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