JPS54113307A - Rotating condition detector - Google Patents

Rotating condition detector

Info

Publication number
JPS54113307A
JPS54113307A JP2061978A JP2061978A JPS54113307A JP S54113307 A JPS54113307 A JP S54113307A JP 2061978 A JP2061978 A JP 2061978A JP 2061978 A JP2061978 A JP 2061978A JP S54113307 A JPS54113307 A JP S54113307A
Authority
JP
Japan
Prior art keywords
values
accordance
stored
counted
rotating condition
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
JP2061978A
Other languages
Japanese (ja)
Other versions
JPS6028063B2 (en
Inventor
Eiichi Takeuchi
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.)
Casio Computer Co Ltd
Original Assignee
Casio Computer 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 Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Priority to JP53020619A priority Critical patent/JPS6028063B2/en
Publication of JPS54113307A publication Critical patent/JPS54113307A/en
Publication of JPS6028063B2 publication Critical patent/JPS6028063B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)

Abstract

PURPOSE: To detect the malfunction and the operational stop without fail, while facilitating the circuit integration, by comparing the previous and present counted values of the intervals of pulses which are generated in accordance with the rotations.
CONSTITUTION: The inrervals of the pulses, which are generated by means 12 in accordance with the rotations of a rotor 13 driven by a motor 3, are counted at 24, and the counted values are stored in a memory 29. The stored values are compared at 34 with the present counted values after the detecting data are added to the stored values. In case the present counted values are equal to or higher than the stored values, control signals are fed from a control unit 38 to a display circuit 42 and a drive circuit 43 in accordance with the output of an FF 35. Thus, the display concerning the rotating condition is made in a display device 44, and the drive control of the motor 3 is performed.
COPYRIGHT: (C)1979,JPO&Japio
JP53020619A 1978-02-24 1978-02-24 Rotation state detection device Expired JPS6028063B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53020619A JPS6028063B2 (en) 1978-02-24 1978-02-24 Rotation state detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53020619A JPS6028063B2 (en) 1978-02-24 1978-02-24 Rotation state detection device

Publications (2)

Publication Number Publication Date
JPS54113307A true JPS54113307A (en) 1979-09-04
JPS6028063B2 JPS6028063B2 (en) 1985-07-02

Family

ID=12032253

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53020619A Expired JPS6028063B2 (en) 1978-02-24 1978-02-24 Rotation state detection device

Country Status (1)

Country Link
JP (1) JPS6028063B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61269071A (en) * 1986-05-30 1986-11-28 Koko Res Kk Period detection circuit
JPH07210936A (en) * 1993-12-28 1995-08-11 Samsung Electron Co Ltd Detection method of tape termination of videotape recorder and apparatus adapted to it

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61269071A (en) * 1986-05-30 1986-11-28 Koko Res Kk Period detection circuit
JPH07210936A (en) * 1993-12-28 1995-08-11 Samsung Electron Co Ltd Detection method of tape termination of videotape recorder and apparatus adapted to it
JP2869010B2 (en) * 1993-12-28 1999-03-10 三星電子株式会社 Video tape recorder tape end detecting method and apparatus adapted thereto

Also Published As

Publication number Publication date
JPS6028063B2 (en) 1985-07-02

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