JPS576403A - Recording and reproducing device - Google Patents

Recording and reproducing device

Info

Publication number
JPS576403A
JPS576403A JP7940880A JP7940880A JPS576403A JP S576403 A JPS576403 A JP S576403A JP 7940880 A JP7940880 A JP 7940880A JP 7940880 A JP7940880 A JP 7940880A JP S576403 A JPS576403 A JP S576403A
Authority
JP
Japan
Prior art keywords
tape
heads
recording
head
moved
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
JP7940880A
Other languages
Japanese (ja)
Inventor
Hidenori Marumoto
Seiichi Yanagida
Masakazu Yokoyama
Motohiko Takeuchi
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 JP7940880A priority Critical patent/JPS576403A/en
Publication of JPS576403A publication Critical patent/JPS576403A/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
    • G11B5/54—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 with provision for moving the head into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5504—Track change, selection or acquisition by displacement of the head across tape tracks
    • G11B5/5508—Control circuits therefor

Landscapes

  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

PURPOSE:To make a moving stroke of a head small, by providing a pair of recording and reproducing heads which have been set to a half space of occupied width of a recording track of a tape, and controlling their movement in the width direction of a tape. CONSTITUTION:This device is equipped with a pair of recording and reporducing heads 21a, 21b which have been set to an almost half space of occupied width of a recording track of a running endless tape 11, and they are moved in the width direction of the tape 11 through a screw shaft 20 by a step-motor 32. And, when the heads 21a, 21b have been moved by a head space portion by a controlling circuit containing a mark detector 37, a counter 40 which step forwards at every running of one rotation of the tape 11, a comparator 42, and flip-flops 43, 47, their moving direction is reversed, and also one of the heads is changed over to a working state. Accordingly, a moving stroke of the head is made small, and an access time is greatly shortened.
JP7940880A 1980-06-12 1980-06-12 Recording and reproducing device Pending JPS576403A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7940880A JPS576403A (en) 1980-06-12 1980-06-12 Recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7940880A JPS576403A (en) 1980-06-12 1980-06-12 Recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS576403A true JPS576403A (en) 1982-01-13

Family

ID=13689025

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7940880A Pending JPS576403A (en) 1980-06-12 1980-06-12 Recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS576403A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2582511A1 (en) * 1985-06-04 1986-12-05 Sandoz Sa ENDONASAL APPLICATION SYSTEM
JPS63149411U (en) * 1987-03-18 1988-10-03
US6608117B1 (en) 2001-05-11 2003-08-19 Nanosystems Research Inc. Methods for the preparation of cellular hydrogels

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2582511A1 (en) * 1985-06-04 1986-12-05 Sandoz Sa ENDONASAL APPLICATION SYSTEM
JPS63149411U (en) * 1987-03-18 1988-10-03
JPH0433537Y2 (en) * 1987-03-18 1992-08-11
US6608117B1 (en) 2001-05-11 2003-08-19 Nanosystems Research Inc. Methods for the preparation of cellular hydrogels

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