JPS55150129A - Magnetic recording and reproducing device - Google Patents

Magnetic recording and reproducing device

Info

Publication number
JPS55150129A
JPS55150129A JP5728779A JP5728779A JPS55150129A JP S55150129 A JPS55150129 A JP S55150129A JP 5728779 A JP5728779 A JP 5728779A JP 5728779 A JP5728779 A JP 5728779A JP S55150129 A JPS55150129 A JP S55150129A
Authority
JP
Japan
Prior art keywords
heads
phase difference
reproduced
difference
securely
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
JP5728779A
Other languages
Japanese (ja)
Inventor
Takehiko Yano
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP5728779A priority Critical patent/JPS55150129A/en
Publication of JPS55150129A publication Critical patent/JPS55150129A/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
    • G11B5/58—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

Landscapes

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

Abstract

PURPOSE:To make tracking control of high precision possible easily and securely by exercising position control corresponding to a phase difference between two kinds of reproduced video information corresponding to the recording of two heads differing in cap direction and having a difference is level. CONSTITUTION:A rotary head of VTR, etc., is formed of a couple of heads 45 and 46 differing in cap direction and having a level difference and the horizontal synchronizing signal, luminance burst signal, etc., of video information are recorded on corresponding tracks 51 and 52. When those recorded signals are reproduced by heads 45 and 46, fixed phase difference (t) between reproduced horizontal synchronizing signal 80 and burst signal 81 changes according to the direction and value of a tracking shift between heads 45 and 46. For the purpose, exercising servocontrol over the positions of heads 45 and 46 to obtain a fixed phase difference attains high- precision tracking control in reproduction easily and securely.
JP5728779A 1979-05-10 1979-05-10 Magnetic recording and reproducing device Pending JPS55150129A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5728779A JPS55150129A (en) 1979-05-10 1979-05-10 Magnetic recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5728779A JPS55150129A (en) 1979-05-10 1979-05-10 Magnetic recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS55150129A true JPS55150129A (en) 1980-11-21

Family

ID=13051322

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5728779A Pending JPS55150129A (en) 1979-05-10 1979-05-10 Magnetic recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS55150129A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4868692A (en) * 1987-03-31 1989-09-19 Matsushita Electric Industrial Co., Ltd. Tracking error signal forming circuit
US5210663A (en) * 1989-04-10 1993-05-11 Matsushita Electric Industrial Co., Ltd. Tracking control device and magnetic recording and reproducing apparatus using the device
US7130147B2 (en) 2001-06-12 2006-10-31 Matsushita Electric Industrial Co., Ltd. Magnetic recording/reproducing apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5257807A (en) * 1975-11-06 1977-05-12 Matsushita Electric Ind Co Ltd Tracking controller of magnetic recorder and reproducing device
JPS5268402A (en) * 1975-12-03 1977-06-07 Sony Corp Magnetic reproduction device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5257807A (en) * 1975-11-06 1977-05-12 Matsushita Electric Ind Co Ltd Tracking controller of magnetic recorder and reproducing device
JPS5268402A (en) * 1975-12-03 1977-06-07 Sony Corp Magnetic reproduction device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4868692A (en) * 1987-03-31 1989-09-19 Matsushita Electric Industrial Co., Ltd. Tracking error signal forming circuit
US5210663A (en) * 1989-04-10 1993-05-11 Matsushita Electric Industrial Co., Ltd. Tracking control device and magnetic recording and reproducing apparatus using the device
US7130147B2 (en) 2001-06-12 2006-10-31 Matsushita Electric Industrial Co., Ltd. Magnetic recording/reproducing apparatus

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