JPS6448190A - Error data clearing system for memory in electronic time recorder - Google Patents
Error data clearing system for memory in electronic time recorderInfo
- Publication number
- JPS6448190A JPS6448190A JP62203978A JP20397887A JPS6448190A JP S6448190 A JPS6448190 A JP S6448190A JP 62203978 A JP62203978 A JP 62203978A JP 20397887 A JP20397887 A JP 20397887A JP S6448190 A JPS6448190 A JP S6448190A
- Authority
- JP
- Japan
- Prior art keywords
- memory
- block
- error
- error data
- check
- 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
- Time Recorders, Dirve Recorders, Access Control (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
- Debugging And Monitoring (AREA)
Abstract
PURPOSE: To make it possible to clear only a block wherein a memory error occurs by applying a check digit in each memory block storing employee's working data. CONSTITUTION: The storage area of a memory for storing employee's working data is divided into plural blocks a, b, c,... to which respective check bits a', b', c',... are added. Memory error check is executed in each block, a new check bit is prepared only for the block generating an error and data are cleared to zero. Thereby, even when a memory error is generated, a memory area to be cleared is limited and working data stored in other areas can be transferred to a personal computer arranged in a head office or the like.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62203978A JPS6448190A (en) | 1987-08-19 | 1987-08-19 | Error data clearing system for memory in electronic time recorder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62203978A JPS6448190A (en) | 1987-08-19 | 1987-08-19 | Error data clearing system for memory in electronic time recorder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6448190A true JPS6448190A (en) | 1989-02-22 |
Family
ID=16482773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62203978A Pending JPS6448190A (en) | 1987-08-19 | 1987-08-19 | Error data clearing system for memory in electronic time recorder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6448190A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013037574A (en) * | 2011-08-09 | 2013-02-21 | Yazaki Energy System Corp | Operation card initialization method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52140249A (en) * | 1976-05-18 | 1977-11-22 | Nippon Denso Co Ltd | Time recorder |
JPS58128096A (en) * | 1981-12-19 | 1983-07-30 | Fujitsu Ltd | Memory clear system |
-
1987
- 1987-08-19 JP JP62203978A patent/JPS6448190A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52140249A (en) * | 1976-05-18 | 1977-11-22 | Nippon Denso Co Ltd | Time recorder |
JPS58128096A (en) * | 1981-12-19 | 1983-07-30 | Fujitsu Ltd | Memory clear system |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013037574A (en) * | 2011-08-09 | 2013-02-21 | Yazaki Energy System Corp | Operation card initialization method |
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