JPS5597025A - Positioning device using microcomputer - Google Patents

Positioning device using microcomputer

Info

Publication number
JPS5597025A
JPS5597025A JP301879A JP301879A JPS5597025A JP S5597025 A JPS5597025 A JP S5597025A JP 301879 A JP301879 A JP 301879A JP 301879 A JP301879 A JP 301879A JP S5597025 A JPS5597025 A JP S5597025A
Authority
JP
Japan
Prior art keywords
head
microcomputer
shift
error
amount
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
JP301879A
Other languages
Japanese (ja)
Inventor
Hideaki Koiwai
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 JP301879A priority Critical patent/JPS5597025A/en
Publication of JPS5597025A publication Critical patent/JPS5597025A/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

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)

Abstract

PURPOSE:To secure the high-accuracy head shift and then increase the record density of the VTR by installing the microcomputer which memorizes the error of the shift amount with every step of the fixed-head VTR and then giving correction to the error amount via the operation amount of positioning. CONSTITUTION:Prior to incorporation of the head tracking device, the error is measured via high-accuracy displacement measuring unit 21 for the shift amount of shifter 22 with every track to be supplied to the memory of the microcomputer. With designation of the track No. for the head, microcomputer 23 gives rotation to pulse motor 24 to generate the pulse number up to the designated address. The result of measurement is applied to the microcomputer and then supplied to memory 25 after calculation of the error amount. When the tracking device is incorporated into the VTR to designate the track, the fine adjustment is given through shift of the head and correction of the error amount via the pulse motor. In such way, the high-accuracy shift is ensured for the head.
JP301879A 1979-01-17 1979-01-17 Positioning device using microcomputer Pending JPS5597025A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP301879A JPS5597025A (en) 1979-01-17 1979-01-17 Positioning device using microcomputer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP301879A JPS5597025A (en) 1979-01-17 1979-01-17 Positioning device using microcomputer

Publications (1)

Publication Number Publication Date
JPS5597025A true JPS5597025A (en) 1980-07-23

Family

ID=11545588

Family Applications (1)

Application Number Title Priority Date Filing Date
JP301879A Pending JPS5597025A (en) 1979-01-17 1979-01-17 Positioning device using microcomputer

Country Status (1)

Country Link
JP (1) JPS5597025A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0051428A1 (en) * 1980-11-12 1982-05-12 Sony Corporation Video signal recording and reproducing apparatus
US4679104A (en) * 1985-02-08 1987-07-07 Tandberg Data A/S Method and arrangement for positioning a magnetic head to various tracks of a magnetic tape

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5187690A (en) * 1975-01-29 1976-07-31 Inoue Japax Res SUCHISEIGYO SOCHI

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5187690A (en) * 1975-01-29 1976-07-31 Inoue Japax Res SUCHISEIGYO SOCHI

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0051428A1 (en) * 1980-11-12 1982-05-12 Sony Corporation Video signal recording and reproducing apparatus
US4679104A (en) * 1985-02-08 1987-07-07 Tandberg Data A/S Method and arrangement for positioning a magnetic head to various tracks of a magnetic tape

Similar Documents

Publication Publication Date Title
DE3069857D1 (en) Method of measuring shooting errors and shooting error measurement device for carrying out the method
JPS5753830A (en) Tracking servo device for optical information signal reproducer
JPS5597025A (en) Positioning device using microcomputer
SE7600323L (en) METADEMY FOR DETERMINING THE QUANTITY PER UNIT OF TIME IN A FLOWING MEDIUM
JPS5337077A (en) Probe for tester
GB2054239B (en) Tonearm tracking error measurement
JPS57101701A (en) Self-recording type shape measuring method
JPS5458070A (en) Rotational irregularity meter
JPS57113785A (en) Servo circuit
JPH063369B2 (en) Measuring method of golf club head
SCHAUERTE Modern hygrometer. Is it an alternative to psychrometric humidity measurement?
SU756470A1 (en) Device for magnetic recording and reproducing of information
JPS5629833A (en) Measuring unit of magnetic head characteristics
JPS55149886A (en) Automatic testing device
SU996963A2 (en) Checking calibrating device for neutron probe pickups
STRUZER Atmospheric precipitation: Measuring and computing methods(Russian book)
JPS6449153A (en) Recording and reproducing device
JPS51126883A (en) Car density measuring method
JPS56107101A (en) Circular-arc type automatic recording measuring apparatus for rut depth
JPS51117611A (en) Tape thickness detecting unit
JPS5319819A (en) Control error detection system in magnetic recording
MULLER Method and apparatus for measuring web material wound on a reel[Patent]
PROTOPOPOV Design of wind measuring instruments(Russian book)
JPS5594142A (en) Method of measuring velocity factor of corrosion reaction
JPS5613566A (en) Generating circuit for track-crossing pulse