JPS5718024A - Head height position controller of magnetic recording and reproducing device - Google Patents

Head height position controller of magnetic recording and reproducing device

Info

Publication number
JPS5718024A
JPS5718024A JP9256580A JP9256580A JPS5718024A JP S5718024 A JPS5718024 A JP S5718024A JP 9256580 A JP9256580 A JP 9256580A JP 9256580 A JP9256580 A JP 9256580A JP S5718024 A JPS5718024 A JP S5718024A
Authority
JP
Japan
Prior art keywords
head
rotary
moving mechanism
control
head moving
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
JP9256580A
Other languages
Japanese (ja)
Other versions
JPS6321253B2 (en
Inventor
Akira Hirota
Seisuke Hirakuri
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP9256580A priority Critical patent/JPS5718024A/en
Publication of JPS5718024A publication Critical patent/JPS5718024A/en
Publication of JPS6321253B2 publication Critical patent/JPS6321253B2/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
    • 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
    • G11B5/58—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 for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/584—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 for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes
    • G11B5/588—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 for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads

Abstract

PURPOSE:To realize an automatic control of the height of a head to the optimum position, by making a memory store the value of the control signal which is applied to a head moving mechanism substantially capable of eliminating the shift of the relative height positions of plural rotary heads. CONSTITUTION:Two rotary heads (not shown in the diagram) having different azimuth angles are attached opposed to each other at a rotary drum 12, and receive a displacement in the direction orthogonal to the rotating face of the rotary head by a head moving mechanism (not shown in the diagram). The signal reproduced by the rotary head is supplied to a control circuit 28 after an A/D conversion 27 via a preamplifier 23, a high pass filter 25 and a level detector 26. The circuit 28 delivers the control digital signal to the head moving mechanism for calculation of the relative height positions by the input digital signal based on the reproduction output level of each rotary head. Thus a memory 30 stores the control voltage value of the optimum height position. The signal sent from the circuit 28 is applied to the head moving mechanism after a D/A conversion 31.
JP9256580A 1980-07-07 1980-07-07 Head height position controller of magnetic recording and reproducing device Granted JPS5718024A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9256580A JPS5718024A (en) 1980-07-07 1980-07-07 Head height position controller of magnetic recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9256580A JPS5718024A (en) 1980-07-07 1980-07-07 Head height position controller of magnetic recording and reproducing device

Publications (2)

Publication Number Publication Date
JPS5718024A true JPS5718024A (en) 1982-01-29
JPS6321253B2 JPS6321253B2 (en) 1988-05-06

Family

ID=14057939

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9256580A Granted JPS5718024A (en) 1980-07-07 1980-07-07 Head height position controller of magnetic recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS5718024A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2512247A1 (en) * 1981-08-28 1983-03-04 Ampex SYSTEM AND METHOD FOR POSITIONING A STRUCTURE OF RECORDING / REPRODUCTION HEADS
JPS58179392U (en) * 1982-05-24 1983-11-30 株式会社日本アルミ retractable skylight
JPS6353435U (en) * 1986-09-25 1988-04-11
JPS6353436U (en) * 1986-09-25 1988-04-11

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2512247A1 (en) * 1981-08-28 1983-03-04 Ampex SYSTEM AND METHOD FOR POSITIONING A STRUCTURE OF RECORDING / REPRODUCTION HEADS
JPS58179392U (en) * 1982-05-24 1983-11-30 株式会社日本アルミ retractable skylight
JPS6343305Y2 (en) * 1982-05-24 1988-11-11
JPS6353435U (en) * 1986-09-25 1988-04-11
JPS6353436U (en) * 1986-09-25 1988-04-11

Also Published As

Publication number Publication date
JPS6321253B2 (en) 1988-05-06

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