JPS5482142A - Information error detecting system - Google Patents
Information error detecting systemInfo
- Publication number
- JPS5482142A JPS5482142A JP15012777A JP15012777A JPS5482142A JP S5482142 A JPS5482142 A JP S5482142A JP 15012777 A JP15012777 A JP 15012777A JP 15012777 A JP15012777 A JP 15012777A JP S5482142 A JPS5482142 A JP S5482142A
- Authority
- JP
- Japan
- Prior art keywords
- information
- circuit
- parallel
- series
- checked
- 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
- Detection And Correction Of Errors (AREA)
Abstract
PURPOSE: To increase the reliability for the transfer information with the control mechanism requiring the series-parallel conversion function by comparing the contents per word between the decision circuit of the parallel information and the FF which supplies the series-parallel conversion information and then detecting the information error.
CONSTITUTION: The parallel information transfeered from the higherdevice is stored once in data buffer 1 to be checked through parity circuit 2 concurrently. The checked parallel information is converted to series information through control circuit 3. In case the lower device is the floppy disc, the clock bit is inserted and then transmitted to the lower device in the form of series data C. At the same time, signal C is supplied to FF9 via OR gate 8, and the contents of FF9 is compared with the parity bit of the parallel information at comparator circuit 10 per word. And if no coincidence is obtained, it means that the transfer error of the information takes place at circuit 3. And output signal f of circuit 10 features logic "1".
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15012777A JPS5482142A (en) | 1977-12-14 | 1977-12-14 | Information error detecting system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15012777A JPS5482142A (en) | 1977-12-14 | 1977-12-14 | Information error detecting system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5482142A true JPS5482142A (en) | 1979-06-30 |
Family
ID=15490064
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15012777A Pending JPS5482142A (en) | 1977-12-14 | 1977-12-14 | Information error detecting system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5482142A (en) |
-
1977
- 1977-12-14 JP JP15012777A patent/JPS5482142A/en active Pending
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