JPS55163650A - Magnetic picture recorder/reproducer - Google Patents

Magnetic picture recorder/reproducer

Info

Publication number
JPS55163650A
JPS55163650A JP7293579A JP7293579A JPS55163650A JP S55163650 A JPS55163650 A JP S55163650A JP 7293579 A JP7293579 A JP 7293579A JP 7293579 A JP7293579 A JP 7293579A JP S55163650 A JPS55163650 A JP S55163650A
Authority
JP
Japan
Prior art keywords
stoppage
motor
take
rotation
detected
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
JP7293579A
Other languages
Japanese (ja)
Inventor
Yoshio Koga
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 JP7293579A priority Critical patent/JPS55163650A/en
Publication of JPS55163650A publication Critical patent/JPS55163650A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Electric Motors In General (AREA)

Abstract

PURPOSE: To ensure the steady low-speed reproduction by detecting the rotation stoppage of the capstan motor receiving the velocity control by the frequency servo loop with the stoppage of the take-up reel's rotation and then giving the forced driving to the same motor.
CONSTITUTION: Capstan motor 1 stops easily owing to its large dynamic friction. With stoppage of the motor, no rotary signal is delivered. As a result, the frequency servo has no operation and the stoppage of motor 1 is continued. Then the fact that no output of take-up sensor 7 to be detected is delivered to the rotation of take- up reel 6 to take up the video tape is detected by sensor output stoppage detecting circuit 8. Thus the stoppage of motor 1 is detected, and forced rotation command circuit 9 is operated by the detection output. And then motor 1 is driven forcedly via amplifier 5. In this way, the steady low-speed reproduction can be continued.
COPYRIGHT: (C)1980,JPO&Japio
JP7293579A 1979-06-07 1979-06-07 Magnetic picture recorder/reproducer Pending JPS55163650A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7293579A JPS55163650A (en) 1979-06-07 1979-06-07 Magnetic picture recorder/reproducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7293579A JPS55163650A (en) 1979-06-07 1979-06-07 Magnetic picture recorder/reproducer

Publications (1)

Publication Number Publication Date
JPS55163650A true JPS55163650A (en) 1980-12-19

Family

ID=13503713

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7293579A Pending JPS55163650A (en) 1979-06-07 1979-06-07 Magnetic picture recorder/reproducer

Country Status (1)

Country Link
JP (1) JPS55163650A (en)

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