JPS5776984A - Magnetic recording and reproducing device - Google Patents

Magnetic recording and reproducing device

Info

Publication number
JPS5776984A
JPS5776984A JP55152920A JP15292080A JPS5776984A JP S5776984 A JPS5776984 A JP S5776984A JP 55152920 A JP55152920 A JP 55152920A JP 15292080 A JP15292080 A JP 15292080A JP S5776984 A JPS5776984 A JP S5776984A
Authority
JP
Japan
Prior art keywords
motor
playback
reversing
frequency
operated
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
JP55152920A
Other languages
Japanese (ja)
Other versions
JPS6358430B2 (en
Inventor
Susumu Ikeda
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 JP55152920A priority Critical patent/JPS5776984A/en
Publication of JPS5776984A publication Critical patent/JPS5776984A/en
Publication of JPS6358430B2 publication Critical patent/JPS6358430B2/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 obtain a stable slow motion picture without noise, by repeating playback and stop sections depending on normal playback speed on a magnetic tape, at the playback of slow motion. CONSTITUTION:A capstan motor 15 is switched in the order of start, constant speed and reversing brake and a direction detecting circuit 11 is operated when the motor exceeds slightly toward reversing to stop the drive. In this case, when a frequency of a two-phase frequency generator 14 having about 90 deg. phase difference provided for the capstan motor 15 is increased, the reverse rotation can be negligible. But, it is desirable for the processing with less number of poles of the generator 14, and if a reversing brake is activated, the direction detecting circuit 11 is operated with a slight delay from the point of time of a true revolution frequency ''0'' of the motor 15, to avoid the stopping of essentialy position. Thus, after the detection of direction with the output of a monostable multibrator 17, the motor is driven toward forward for a given time again, allowing to cancel the position shift.
JP55152920A 1980-10-29 1980-10-29 Magnetic recording and reproducing device Granted JPS5776984A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55152920A JPS5776984A (en) 1980-10-29 1980-10-29 Magnetic recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55152920A JPS5776984A (en) 1980-10-29 1980-10-29 Magnetic recording and reproducing device

Publications (2)

Publication Number Publication Date
JPS5776984A true JPS5776984A (en) 1982-05-14
JPS6358430B2 JPS6358430B2 (en) 1988-11-15

Family

ID=15551032

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55152920A Granted JPS5776984A (en) 1980-10-29 1980-10-29 Magnetic recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS5776984A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6267334U (en) * 1985-10-15 1987-04-27
JPH04106752A (en) * 1990-08-28 1992-04-08 Sanyo Electric Co Ltd Brake controller

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54104229A (en) * 1978-02-03 1979-08-16 Victor Co Of Japan Ltd Magnetic reproducer
JPS5552684U (en) * 1978-09-30 1980-04-08

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54104229A (en) * 1978-02-03 1979-08-16 Victor Co Of Japan Ltd Magnetic reproducer
JPS5552684U (en) * 1978-09-30 1980-04-08

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6267334U (en) * 1985-10-15 1987-04-27
JPH0528589Y2 (en) * 1985-10-15 1993-07-22
JPH04106752A (en) * 1990-08-28 1992-04-08 Sanyo Electric Co Ltd Brake controller

Also Published As

Publication number Publication date
JPS6358430B2 (en) 1988-11-15

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