JPS5611570A - Phase adjustment system of synchronizing signal in card reader - Google Patents
Phase adjustment system of synchronizing signal in card readerInfo
- Publication number
- JPS5611570A JPS5611570A JP8682279A JP8682279A JPS5611570A JP S5611570 A JPS5611570 A JP S5611570A JP 8682279 A JP8682279 A JP 8682279A JP 8682279 A JP8682279 A JP 8682279A JP S5611570 A JPS5611570 A JP S5611570A
- Authority
- JP
- Japan
- Prior art keywords
- synchronizing signal
- signal
- phase difference
- card
- counter
- 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
Abstract
PURPOSE: To decrease the shift in the read-in timing to the card by using the synchronizing signal obtained from delay, by detecting the phase difference between the time point of card insertion start and the synchronizing signal, and performing phase adjustment through the delay in the synchronizing signal by this phase difference.
CONSTITUTION: The synchronizing signal (c) is produced from the synchronizing signal generator 15 corresponding to the rotating speed of the feed roller 13 and the card detection signal (b) is detected with the card detector 12. Further, based on the clock signal (a) from the basic oscillator 1, the phase difference of the leading between the detection signal (b) and the synchronizing signal (c) is counted and stored by the counter 2. The synchronizing signal phase adjustment unit is constituted with the counter 2, electronic selector switch 3 operated with the detection signal (b), counter 4 counting the clock signal (a) through the input of the synchronizing signal (c), and the comparator 5 comparing the count value of the counters 2 and 4. This phase adjusting unit detects the phase difference between the detection signal (b) of the card 11 and the synchronizing signal (c), the synchronizing signal (c) is delayed by the phase difference, and the read-in timing signal (d) is output from the comparator 5.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8682279A JPS5611570A (en) | 1979-07-11 | 1979-07-11 | Phase adjustment system of synchronizing signal in card reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8682279A JPS5611570A (en) | 1979-07-11 | 1979-07-11 | Phase adjustment system of synchronizing signal in card reader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5611570A true JPS5611570A (en) | 1981-02-04 |
Family
ID=13897491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8682279A Pending JPS5611570A (en) | 1979-07-11 | 1979-07-11 | Phase adjustment system of synchronizing signal in card reader |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5611570A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104140008A (en) * | 2014-07-30 | 2014-11-12 | 龙岩烟草工业有限责任公司 | Opposite-pressing roller synchronization detecting device, system and method |
-
1979
- 1979-07-11 JP JP8682279A patent/JPS5611570A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104140008A (en) * | 2014-07-30 | 2014-11-12 | 龙岩烟草工业有限责任公司 | Opposite-pressing roller synchronization detecting device, system and method |
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