JPS5712413A - Recording and reproducing system of pilot signal - Google Patents

Recording and reproducing system of pilot signal

Info

Publication number
JPS5712413A
JPS5712413A JP8576580A JP8576580A JPS5712413A JP S5712413 A JPS5712413 A JP S5712413A JP 8576580 A JP8576580 A JP 8576580A JP 8576580 A JP8576580 A JP 8576580A JP S5712413 A JPS5712413 A JP S5712413A
Authority
JP
Japan
Prior art keywords
pilot signals
shift
tracks
frequencies
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.)
Granted
Application number
JP8576580A
Other languages
Japanese (ja)
Other versions
JPS6321248B2 (en
Inventor
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 JP8576580A priority Critical patent/JPS5712413A/en
Publication of JPS5712413A publication Critical patent/JPS5712413A/en
Publication of JPS6321248B2 publication Critical patent/JPS6321248B2/ja
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00Head arrangements not specific to the method of recording or reproducing
    • G11B21/02Driving or moving of heads
    • G11B21/10Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following

Landscapes

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

Abstract

PURPOSE:To preform a tracking in a simple and accurate way, by recording also the pilot signals of prescribed frequencies which are different with every prescribed period and then reproducing those pilot signals as the crosstalk from the adjacent tracks to detect a shift of tracks. CONSTITUTION:The pulse signals that are formed through a horizontal synchronous signal dividing circuit 3 plus dividers 5-8 with the repetitive frequencies equivalent to 1/2, 1/3, 1/5, 1/7, and the like of the horizontal scan frequency give a control to a gate circuit 10 via a switch 9 which is switched with every track forming period. The horizontal blanking period signals produced through a voltage control oscillator 15, a 1/16 divider 12, an LPF18, an FF13, a gate circuit 19 and others are applied to the circuit 10. Then the low frequency pilot signals of frequencies different with every track are also recorded in the horizontal blanking period via a mixer 20 and others. The pilot signals of the adjacent tracks are reproduced as the crosstalk to detect the shift of tracks in accordance with the difference of levels. Accordingly even a large track shift can be detected accurately without impairing the picture quality. Thus a simple and accurate tracking is possible.
JP8576580A 1980-06-24 1980-06-24 Recording and reproducing system of pilot signal Granted JPS5712413A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8576580A JPS5712413A (en) 1980-06-24 1980-06-24 Recording and reproducing system of pilot signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8576580A JPS5712413A (en) 1980-06-24 1980-06-24 Recording and reproducing system of pilot signal

Publications (2)

Publication Number Publication Date
JPS5712413A true JPS5712413A (en) 1982-01-22
JPS6321248B2 JPS6321248B2 (en) 1988-05-06

Family

ID=13867958

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8576580A Granted JPS5712413A (en) 1980-06-24 1980-06-24 Recording and reproducing system of pilot signal

Country Status (1)

Country Link
JP (1) JPS5712413A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0089816A2 (en) * 1982-03-18 1983-09-28 Sony Corporation Apparatus for controlling the tracking position of a head in an apparatus for recording or reproducing information
EP0492889A2 (en) * 1990-12-18 1992-07-01 Pioneer Electronic Corporation Crosstalk quantity detector
JPH09501519A (en) * 1993-06-17 1997-02-10 ルールコーレ アクチエンゲゼルシヤフト Process control method especially for large industrial plants

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0089816A2 (en) * 1982-03-18 1983-09-28 Sony Corporation Apparatus for controlling the tracking position of a head in an apparatus for recording or reproducing information
EP0492889A2 (en) * 1990-12-18 1992-07-01 Pioneer Electronic Corporation Crosstalk quantity detector
JPH09501519A (en) * 1993-06-17 1997-02-10 ルールコーレ アクチエンゲゼルシヤフト Process control method especially for large industrial plants

Also Published As

Publication number Publication date
JPS6321248B2 (en) 1988-05-06

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