JPS57208655A - Skew compensating device - Google Patents

Skew compensating device

Info

Publication number
JPS57208655A
JPS57208655A JP56095024A JP9502481A JPS57208655A JP S57208655 A JPS57208655 A JP S57208655A JP 56095024 A JP56095024 A JP 56095024A JP 9502481 A JP9502481 A JP 9502481A JP S57208655 A JPS57208655 A JP S57208655A
Authority
JP
Japan
Prior art keywords
skew
output
comparator
low
comparators
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
JP56095024A
Other languages
Japanese (ja)
Inventor
Hiroshi Horikane
Masaru Nakahama
Masaru Hashirano
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 JP56095024A priority Critical patent/JPS57208655A/en
Publication of JPS57208655A publication Critical patent/JPS57208655A/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
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/60—Guiding record carrier
    • G11B15/602—Guiding record carrier for track selection, acquisition or following

Abstract

PURPOSE:To realize the stable compensation of the skew with a simple constitution and although the S/N of the reproduced video signal is low, by providing a blind sector for the detection of the skew error voltage by means of two sets of comparators having different levers of reference voltage. CONSTITUTION:The phase of the reproduced horizontal synchronizing signal and the reference horizontal synchronizing signal are compared through a phase comparator 12. Then the circuit 12 produces an output of a level corresponding to the degree of the skew. This output is compared between the 1st and 2nd comparators 14 and 15 to which the high and low level reference signals are set. When the output of the circuit 12 is set lower than the reference level of the comparator 14 and higher than the reference signal of the comparator 15 respectively, an up-down counter 16 counts down or up the clocks. Thus the tension of a tape receives the feedback control in accordance with the skew. A blind sector is provided for the detection of the skew error voltage. As a result, the stable compensation is possible for the skew although the S/N of the reproduced video signal is low to produce the noise, etc.
JP56095024A 1981-06-18 1981-06-18 Skew compensating device Pending JPS57208655A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56095024A JPS57208655A (en) 1981-06-18 1981-06-18 Skew compensating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56095024A JPS57208655A (en) 1981-06-18 1981-06-18 Skew compensating device

Publications (1)

Publication Number Publication Date
JPS57208655A true JPS57208655A (en) 1982-12-21

Family

ID=14126498

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56095024A Pending JPS57208655A (en) 1981-06-18 1981-06-18 Skew compensating device

Country Status (1)

Country Link
JP (1) JPS57208655A (en)

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