JPS5510691A - Data supervisory system - Google Patents
Data supervisory systemInfo
- Publication number
- JPS5510691A JPS5510691A JP8430478A JP8430478A JPS5510691A JP S5510691 A JPS5510691 A JP S5510691A JP 8430478 A JP8430478 A JP 8430478A JP 8430478 A JP8430478 A JP 8430478A JP S5510691 A JPS5510691 A JP S5510691A
- Authority
- JP
- Japan
- Prior art keywords
- data
- error
- circuit
- parity check
- 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
- Detection And Correction Of Errors (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Maintenance And Management Of Digital Transmission (AREA)
Abstract
PURPOSE: To improve reliability by detecting an error in a data transmitter by carrying on a parity check from the generation of a data effective strobe signal until the arrival of a data reception confirmation signal in a data superviosry system.
CONSTITUTION: A parity check circuit is indicated by 6, and NAND circuits are by 7, 8, 12 and 13. Circuit 6 outputs "0" when the check result is normal and "1" when an error occurs. Once the output of circuit 12 becomes "1" making an error display signal "1", the error display state is held even after the output of circuit 7 returns to "1". Then, the error display is reset by error reset signal 5 generated at an adequate point in time. In this case, since the data supervisory circuit is free from the clock timing conditions, the period when an error check is made is T and the parity check is carried on until transmitted data are received by a party unit.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53084304A JPS584364B2 (en) | 1978-07-11 | 1978-07-11 | Data monitoring method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53084304A JPS584364B2 (en) | 1978-07-11 | 1978-07-11 | Data monitoring method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5510691A true JPS5510691A (en) | 1980-01-25 |
JPS584364B2 JPS584364B2 (en) | 1983-01-26 |
Family
ID=13826736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53084304A Expired JPS584364B2 (en) | 1978-07-11 | 1978-07-11 | Data monitoring method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS584364B2 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51112215A (en) * | 1975-03-28 | 1976-10-04 | Hitachi Ltd | Error control system |
-
1978
- 1978-07-11 JP JP53084304A patent/JPS584364B2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51112215A (en) * | 1975-03-28 | 1976-10-04 | Hitachi Ltd | Error control system |
Also Published As
Publication number | Publication date |
---|---|
JPS584364B2 (en) | 1983-01-26 |
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