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JPS5459910A - Controller of tape running motor - Google Patents

Controller of tape running motor

Info

Publication number
JPS5459910A
JPS5459910A JP12619477A JP12619477A JPS5459910A JP S5459910 A JPS5459910 A JP S5459910A JP 12619477 A JP12619477 A JP 12619477A JP 12619477 A JP12619477 A JP 12619477A JP S5459910 A JPS5459910 A JP S5459910A
Authority
JP
Japan
Prior art keywords
output
capstan
pinch roller
inverted
motor
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
JP12619477A
Other languages
Japanese (ja)
Other versions
JPS6052488B2 (en
Inventor
Kenji Nakamura
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP52126194A priority Critical patent/JPS6052488B2/en
Publication of JPS5459910A publication Critical patent/JPS5459910A/en
Publication of JPS6052488B2 publication Critical patent/JPS6052488B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To reduce the inversion time of tape running by detecting the change in the rotating speed of a drive motor at the changing over of tape running directions and controlling the contacting and detaching of a pinch roller to and from a capstan.
CONSTITUTION: When the polarity of the applied voltage of terminal 2 is inverted, the output of a monostable multi 10 is inverted via trigger pulse generator 9, then a pinch roller detaches from a capstan, At the same time, the rotating speed of a drive motor 1 is decreased by reverse torque, and the inverted output of a first speed detector 16 by a frequency generator 3 goes through an AND gate 17 which is opened by the output of the monostable multi 10 via inverter 18, whereby a transistor 15 is turned ON and the number of revolutions of the motor is quickly decreased. This causes the output signals of a second speed detector 11a to invert and reset the multi 10, which in turn causes the pinch roller to make pressure contact to the capstan. At the same time, the reverse running of the motor 1 is started and the Tr 15 is turned OFF by the second inversion of the output of the detector 16, thus the running direction is surely changed over in a short time and the tape is run stably backward
COPYRIGHT: (C)1979,JPO&Japio
JP52126194A 1977-10-20 1977-10-20 Control device for tape running motor Expired JPS6052488B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52126194A JPS6052488B2 (en) 1977-10-20 1977-10-20 Control device for tape running motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52126194A JPS6052488B2 (en) 1977-10-20 1977-10-20 Control device for tape running motor

Publications (2)

Publication Number Publication Date
JPS5459910A true JPS5459910A (en) 1979-05-15
JPS6052488B2 JPS6052488B2 (en) 1985-11-19

Family

ID=14929017

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52126194A Expired JPS6052488B2 (en) 1977-10-20 1977-10-20 Control device for tape running motor

Country Status (1)

Country Link
JP (1) JPS6052488B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS578946A (en) * 1980-06-16 1982-01-18 Matsushita Electric Ind Co Ltd Tape driver
JPH04212746A (en) * 1991-01-18 1992-08-04 Canon Inc Tape driving device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS578946A (en) * 1980-06-16 1982-01-18 Matsushita Electric Ind Co Ltd Tape driver
JPH04212746A (en) * 1991-01-18 1992-08-04 Canon Inc Tape driving device
JPH073716B2 (en) * 1991-01-18 1995-01-18 キヤノン株式会社 Tape drive

Also Published As

Publication number Publication date
JPS6052488B2 (en) 1985-11-19

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