JPS5494847A - Read-in system for result of parity check to reproducing data with magnetic card reader/writer - Google Patents
Read-in system for result of parity check to reproducing data with magnetic card reader/writerInfo
- Publication number
- JPS5494847A JPS5494847A JP229378A JP229378A JPS5494847A JP S5494847 A JPS5494847 A JP S5494847A JP 229378 A JP229378 A JP 229378A JP 229378 A JP229378 A JP 229378A JP S5494847 A JPS5494847 A JP S5494847A
- Authority
- JP
- Japan
- Prior art keywords
- parity check
- bit
- result
- data
- read
- 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
Abstract
PURPOSE: To simplify the software for parity check, by reading in the result of parity check as to the reproduced data at recording operation at the most significant bit of the accumulator register in CPU.
CONSTITUTION: The result of parity check at the recording operation of the magnetic card reader/writer MCR/W performing the recording and reproducting to the magnetic card taking the parity bit added to the data and the data having less bit number n than that for one word as the unit data, is read in the most significant bit of a given register in the central processing unit CPU. Further, the data bit in the reproducing data at reproducing operation is read in the least significant n bit and the result of parity check is in the n+1-th bit from the least significant bit.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53002293A JPS6027414B2 (en) | 1978-01-11 | 1978-01-11 | Processing method of reproduced data by magnetic card reader/writer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53002293A JPS6027414B2 (en) | 1978-01-11 | 1978-01-11 | Processing method of reproduced data by magnetic card reader/writer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5494847A true JPS5494847A (en) | 1979-07-26 |
JPS6027414B2 JPS6027414B2 (en) | 1985-06-28 |
Family
ID=11525314
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53002293A Expired JPS6027414B2 (en) | 1978-01-11 | 1978-01-11 | Processing method of reproduced data by magnetic card reader/writer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6027414B2 (en) |
-
1978
- 1978-01-11 JP JP53002293A patent/JPS6027414B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6027414B2 (en) | 1985-06-28 |
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