JPS5684554A - Detecting circuit for index - Google Patents
Detecting circuit for indexInfo
- Publication number
- JPS5684554A JPS5684554A JP16106079A JP16106079A JPS5684554A JP S5684554 A JPS5684554 A JP S5684554A JP 16106079 A JP16106079 A JP 16106079A JP 16106079 A JP16106079 A JP 16106079A JP S5684554 A JPS5684554 A JP S5684554A
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- index
- notch
- rotation
- monostable multivibrator
- 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
Links
Landscapes
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
Abstract
PURPOSE: To obtain a stable index pulse for the change of rotation in a wide range by counting periodically the pulse obtained by the rotation of a notched disc.
CONSTITUTION: The notch pulse (a) obtained from the notched disc 1 is counted 6 through AND 5 with a count gate signal (d). The content of a counter 6 is stored in a register 7 by a register set signal (e), subjected to D/A conversion 8, and led to the time-constant circuit of a monostable multivibrator 11. The monostable multivibrator 11 is triggered by the fall of the abovementioned notch pulse (a) and the output thereof is inputted, together with the notch pulse (a), to an AND gate 12, whereby the index pulse (c) is obtained.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16106079A JPS5684554A (en) | 1979-12-12 | 1979-12-12 | Detecting circuit for index |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16106079A JPS5684554A (en) | 1979-12-12 | 1979-12-12 | Detecting circuit for index |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5684554A true JPS5684554A (en) | 1981-07-09 |
Family
ID=15727842
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16106079A Pending JPS5684554A (en) | 1979-12-12 | 1979-12-12 | Detecting circuit for index |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5684554A (en) |
-
1979
- 1979-12-12 JP JP16106079A patent/JPS5684554A/en active Pending
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