JPS5555485A - Tape running position detection system - Google Patents
Tape running position detection systemInfo
- Publication number
- JPS5555485A JPS5555485A JP12761378A JP12761378A JPS5555485A JP S5555485 A JPS5555485 A JP S5555485A JP 12761378 A JP12761378 A JP 12761378A JP 12761378 A JP12761378 A JP 12761378A JP S5555485 A JPS5555485 A JP S5555485A
- Authority
- JP
- Japan
- Prior art keywords
- rotation
- reel
- tape running
- pulses
- constitution
- 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 detect the tape running position in a simple constitution by counting detection pulses of a winding reel, which generates M-number pulses in one rotation, during the one-rotation time of a supply reel and calculating the tape running quantity on a basis of a prescribed expression.
CONSTITUTION: M-number transmission holes 8a... are provided to detect M- number pulses in rotation detector 2 each time reel 1 is rotated once through disc 8 which is rotated together with winding reel 1 in one body. Meanwhile, detection pulses are generated from rotation detector 4 each time supply reel 3 is rotated once, and number N of detection pulses of detector 2 for one rotation of reel 3 is counted by counter circuit 5 constituted by FF 13 and counter 14. Counted number N and known number M are subjected to operation processing on a basis of expression I by operation circuit 15 provided with squaring equipment 17, adder 18, multiplier 21, divider 22, constant equipments 20 and 23, subtractor 24, etc., thereby detecting tape running quantity t in the constitution where calculation of rotation speed ratio of reels 1 and 3 is not required. (A and B are constants corresponding to the tape thickness and the tape length).
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12761378A JPS5555485A (en) | 1978-10-14 | 1978-10-14 | Tape running position detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12761378A JPS5555485A (en) | 1978-10-14 | 1978-10-14 | Tape running position detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5555485A true JPS5555485A (en) | 1980-04-23 |
Family
ID=14964412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12761378A Pending JPS5555485A (en) | 1978-10-14 | 1978-10-14 | Tape running position detection system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5555485A (en) |
-
1978
- 1978-10-14 JP JP12761378A patent/JPS5555485A/en active Pending
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