JPS57205820A - Automatic tracking correcting device - Google Patents

Automatic tracking correcting device

Info

Publication number
JPS57205820A
JPS57205820A JP56091181A JP9118181A JPS57205820A JP S57205820 A JPS57205820 A JP S57205820A JP 56091181 A JP56091181 A JP 56091181A JP 9118181 A JP9118181 A JP 9118181A JP S57205820 A JPS57205820 A JP S57205820A
Authority
JP
Japan
Prior art keywords
automatic tracking
circuit
signal
signal level
level detecting
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
JP56091181A
Other languages
Japanese (ja)
Other versions
JPS6363967B2 (en
Inventor
Masahiro Honjo
Masao Tomita
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 JP56091181A priority Critical patent/JPS57205820A/en
Priority to US06/309,497 priority patent/US4451860A/en
Priority to EP81304712A priority patent/EP0050024B1/en
Priority to DE8181304712T priority patent/DE3173644D1/en
Publication of JPS57205820A publication Critical patent/JPS57205820A/en
Publication of JPS6363967B2 publication Critical patent/JPS6363967B2/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

Landscapes

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

Abstract

PURPOSE:To prevent a malfunctiom, and to prevent generation of ''drop'' or ''jump'', by stopping an automatic tracking operation, and forcibly driving a reproducing head, when a reproducing RF signal has become a prescribed level or below, in a VTR. CONSTITUTION:An RF signal from a VTR1 is inputted to an automatic tracking circuit 2 as information of tracking, and is processed. Also, the RF signal is inputted to an RF signal level detecting circuit 3, its RF signal level is detected, and as a result, it is outputted to a controlling circuit 4. In accordance with a signal from the RF signal level detecting circuit 3, the controlling circuit 4 stops a regular operation of the automatic tracking circuit 2, and controls it forcibly so as to execute a prescribed operation. The automatic tracking circuit 2 is connected to a head driving element 5 of the VTR1, usually executes an automatic tracking operation, and executes an operation controlled by the controlling circuit 4, in a section detected by the RF signal level detecting circuit 3.
JP56091181A 1980-10-09 1981-06-12 Automatic tracking correcting device Granted JPS57205820A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP56091181A JPS57205820A (en) 1981-06-12 1981-06-12 Automatic tracking correcting device
US06/309,497 US4451860A (en) 1980-10-09 1981-10-06 Tracking-error correcting system in a video reproducing apparatus
EP81304712A EP0050024B1 (en) 1980-10-09 1981-10-09 Tracking-error correcting system in video reproducing apparatus
DE8181304712T DE3173644D1 (en) 1980-10-09 1981-10-09 Tracking-error correcting system in video reproducing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56091181A JPS57205820A (en) 1981-06-12 1981-06-12 Automatic tracking correcting device

Publications (2)

Publication Number Publication Date
JPS57205820A true JPS57205820A (en) 1982-12-17
JPS6363967B2 JPS6363967B2 (en) 1988-12-09

Family

ID=14019278

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56091181A Granted JPS57205820A (en) 1980-10-09 1981-06-12 Automatic tracking correcting device

Country Status (1)

Country Link
JP (1) JPS57205820A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6028062A (en) * 1983-07-25 1985-02-13 Nec Home Electronics Ltd Tracking error correcting circuit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5425655A (en) * 1993-10-20 1995-06-20 The West Bend Company Appliance enclosure and related terminal block

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6028062A (en) * 1983-07-25 1985-02-13 Nec Home Electronics Ltd Tracking error correcting circuit
JPH0123863B2 (en) * 1983-07-25 1989-05-09 Nippon Denki Hoomu Erekutoronikusu Kk

Also Published As

Publication number Publication date
JPS6363967B2 (en) 1988-12-09

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