JPS5798147A - Information reproducer - Google Patents

Information reproducer

Info

Publication number
JPS5798147A
JPS5798147A JP55176037A JP17603780A JPS5798147A JP S5798147 A JPS5798147 A JP S5798147A JP 55176037 A JP55176037 A JP 55176037A JP 17603780 A JP17603780 A JP 17603780A JP S5798147 A JPS5798147 A JP S5798147A
Authority
JP
Japan
Prior art keywords
output
supplied
level
unrecorded
area
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
JP55176037A
Other languages
Japanese (ja)
Other versions
JPH0219544B2 (en
Inventor
Yasuo Mihashi
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP55176037A priority Critical patent/JPS5798147A/en
Publication of JPS5798147A publication Critical patent/JPS5798147A/en
Publication of JPH0219544B2 publication Critical patent/JPH0219544B2/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
    • 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
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/1808—Driving of both record carrier and head

Abstract

PURPOSE:To make the playback speed of an unrecorded area faster than that of a recorded area on the basis of detection outputs of a detecting means for an area on a magnetic tape where a video signal is not recorded and of another detecting means for an unrecorded area of a control signal track, by permitting the latter means to follow up the former means. CONSTITUTION:The output of an envelope signal detector 13 supplied with an FM video signal from a video head 3 and the output of a control signal detector 17 supplied with the said signal are both inputted to an NAND gate 14, whose output is supplied to the terminal of a forward speed search switch 18f and a sequence control circuit 19. When the video head 3 is in an unrecorded zone of a tape, an envelope level drops and its output rises to a high level; when a tape runs until the unrecorded zone comes to a sound control head 4, the detector 17 detects that to generate a high-level outputs, and the NAND gate 14 generates a low-level output. Then, a forward speed switch turns on to set a speed research mode, thereby increasing a run speed automatically.
JP55176037A 1980-12-10 1980-12-10 Information reproducer Granted JPS5798147A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55176037A JPS5798147A (en) 1980-12-10 1980-12-10 Information reproducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55176037A JPS5798147A (en) 1980-12-10 1980-12-10 Information reproducer

Publications (2)

Publication Number Publication Date
JPS5798147A true JPS5798147A (en) 1982-06-18
JPH0219544B2 JPH0219544B2 (en) 1990-05-02

Family

ID=16006611

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55176037A Granted JPS5798147A (en) 1980-12-10 1980-12-10 Information reproducer

Country Status (1)

Country Link
JP (1) JPS5798147A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4976505A (en) * 1972-11-25 1974-07-24
JPS5572242U (en) * 1978-11-06 1980-05-19

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4976505A (en) * 1972-11-25 1974-07-24
JPS5572242U (en) * 1978-11-06 1980-05-19

Also Published As

Publication number Publication date
JPH0219544B2 (en) 1990-05-02

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