JPS54113307A - Rotating condition detector - Google Patents
Rotating condition detectorInfo
- 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
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
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)
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 |
-
1978
- 1978-02-24 JP JP53020619A patent/JPS6028063B2/en not_active Expired
Cited By (3)
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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