JPS5572225A - Improper timing detection circuit - Google Patents
Improper timing detection circuitInfo
- Publication number
- JPS5572225A JPS5572225A JP14619778A JP14619778A JPS5572225A JP S5572225 A JPS5572225 A JP S5572225A JP 14619778 A JP14619778 A JP 14619778A JP 14619778 A JP14619778 A JP 14619778A JP S5572225 A JPS5572225 A JP S5572225A
- Authority
- JP
- Japan
- Prior art keywords
- flip
- flops
- delay element
- circuit
- improper timing
- 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
- Manipulation Of Pulses (AREA)
Abstract
PURPOSE: To prevent a falut from spreading by immediately detecting the occurrence of improper timing of shorter intervals than preset proper timing, by coupling a delay element with synchronous flip-flops.
CONSTITUTION: This detection circuit consists of synchronous flip-flops 10 and 12, delay element 11 and exclusive OR circuit 13; input data to terminal D of each flip- flop are sampled by timing signal 100 to generate positive and negative outputs at output terminals T and C respectively, delay element 11 generates information on reference time for improper timing detection. Before time (t0), flip-flops are reset and at (t0), and (t1), flip-flops 10 and 12 change with the same polarity, so that circuit 13 will generate no output. At (tE), however, flip-flops 10 and 12 generate outputs of the opposite polarities by the delay element due to a noise and circuit 13 sends out an improper timing detection signal.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14619778A JPS5572225A (en) | 1978-11-27 | 1978-11-27 | Improper timing detection circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14619778A JPS5572225A (en) | 1978-11-27 | 1978-11-27 | Improper timing detection circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5572225A true JPS5572225A (en) | 1980-05-30 |
JPS6141407B2 JPS6141407B2 (en) | 1986-09-16 |
Family
ID=15402315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14619778A Granted JPS5572225A (en) | 1978-11-27 | 1978-11-27 | Improper timing detection circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5572225A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5286029A (en) * | 1976-01-08 | 1977-07-16 | Sperry Rand Corp | Variable frequency clock signal generator |
-
1978
- 1978-11-27 JP JP14619778A patent/JPS5572225A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5286029A (en) * | 1976-01-08 | 1977-07-16 | Sperry Rand Corp | Variable frequency clock signal generator |
Also Published As
Publication number | Publication date |
---|---|
JPS6141407B2 (en) | 1986-09-16 |
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