JPS5557972A - Detection circuit for skip read - Google Patents
Detection circuit for skip readInfo
- Publication number
- JPS5557972A JPS5557972A JP13103778A JP13103778A JPS5557972A JP S5557972 A JPS5557972 A JP S5557972A JP 13103778 A JP13103778 A JP 13103778A JP 13103778 A JP13103778 A JP 13103778A JP S5557972 A JPS5557972 A JP S5557972A
- Authority
- JP
- Japan
- Prior art keywords
- read
- skip
- becomes
- information
- signal
- 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
- Signal Processing For Digital Recording And Reproducing (AREA)
- Manipulation Of Pulses (AREA)
Abstract
PURPOSE: To make it possible to detect a skip read of information definitely by supervising that when information is detected, the logical product of an information signal and sampling signal becomes "1".
CONSTITUTION: Flip-flop FF5 functions to make sure of the existence of information detected by a reading element, FF6 functions to detect the existence of an information skip read, and FF7 functions to store a state detected by FF6. When the reading element detects data signal A1 in a read section and corresponding sampling signal B1 is generated, the logical product of signals A1 and B1 becomes "1" because a normal read and while FF7 is not set, skip-read detection signal (l) becomes "0". If a skip read is done, FF7 is set because the logical produce of the both does not becomes "1", and skip-read detection signal (l) becomes "1".
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13103778A JPS5557972A (en) | 1978-10-26 | 1978-10-26 | Detection circuit for skip read |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13103778A JPS5557972A (en) | 1978-10-26 | 1978-10-26 | Detection circuit for skip read |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5557972A true JPS5557972A (en) | 1980-04-30 |
JPS6329305B2 JPS6329305B2 (en) | 1988-06-13 |
Family
ID=15048539
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13103778A Granted JPS5557972A (en) | 1978-10-26 | 1978-10-26 | Detection circuit for skip read |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5557972A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57169875A (en) * | 1981-04-10 | 1982-10-19 | Tokyo Juki Ind Co Ltd | Card reader |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4965809A (en) * | 1972-10-24 | 1974-06-26 |
-
1978
- 1978-10-26 JP JP13103778A patent/JPS5557972A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4965809A (en) * | 1972-10-24 | 1974-06-26 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57169875A (en) * | 1981-04-10 | 1982-10-19 | Tokyo Juki Ind Co Ltd | Card reader |
JPS6227432B2 (en) * | 1981-04-10 | 1987-06-15 | Tokyo Juki Industrial Co Ltd |
Also Published As
Publication number | Publication date |
---|---|
JPS6329305B2 (en) | 1988-06-13 |
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