JPS5690349A - Error correction code circuit - Google Patents
Error correction code circuitInfo
- Publication number
- JPS5690349A JPS5690349A JP16902779A JP16902779A JPS5690349A JP S5690349 A JPS5690349 A JP S5690349A JP 16902779 A JP16902779 A JP 16902779A JP 16902779 A JP16902779 A JP 16902779A JP S5690349 A JPS5690349 A JP S5690349A
- Authority
- JP
- Japan
- Prior art keywords
- error correction
- correction code
- data
- stored
- memory
- 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 obtain a necessary error correction code in a short time by means of a simple constitution by storing in advance an error correction code corresponding to each data as address information to the error correction code memory.
CONSTITUTION: The error correction code corresponding to each data which becomes an object of the memory systrem is stored as address information in the error correction code memory ECCM. Now, when a data is stored in the data register DR, an eror correction code is read out from the address of the memory ECCM. This error correction code constitutes a Hamming code together with the data which has been already stored in the register DR, and it is stored in the memory device M. In case when the stored data is read out, 1 error correction and 2 error detection are executed with the error correction code. In this way, when a data is stored in the memory device, an error correction code to be added is obtained easily and swiftly.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16902779A JPS5690349A (en) | 1979-12-25 | 1979-12-25 | Error correction code circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16902779A JPS5690349A (en) | 1979-12-25 | 1979-12-25 | Error correction code circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5690349A true JPS5690349A (en) | 1981-07-22 |
Family
ID=15878959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16902779A Pending JPS5690349A (en) | 1979-12-25 | 1979-12-25 | Error correction code circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5690349A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5955548A (en) * | 1982-09-25 | 1984-03-30 | Nippon Telegr & Teleph Corp <Ntt> | Recognition coding and decoding system |
JPH02126500A (en) * | 1988-11-04 | 1990-05-15 | Mitsubishi Electric Corp | Semiconductor memory device equipped with error detecting and correcting function |
JP2001043143A (en) * | 1997-09-30 | 2001-02-16 | Sony Corp | Storage device, data processing system, and writing and reading method for data |
KR100527610B1 (en) * | 1997-09-30 | 2006-03-28 | 소니 가부시끼 가이샤 | Storage devices, data processing systems, and how to record and read data |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49114817A (en) * | 1973-02-28 | 1974-11-01 | ||
JPS53101952A (en) * | 1977-02-17 | 1978-09-05 | Nec Corp | Error correcting detection circuit |
JPS54100631A (en) * | 1977-12-30 | 1979-08-08 | Siemens Ag | Circuit device for coding or decoding binary information |
-
1979
- 1979-12-25 JP JP16902779A patent/JPS5690349A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49114817A (en) * | 1973-02-28 | 1974-11-01 | ||
JPS53101952A (en) * | 1977-02-17 | 1978-09-05 | Nec Corp | Error correcting detection circuit |
JPS54100631A (en) * | 1977-12-30 | 1979-08-08 | Siemens Ag | Circuit device for coding or decoding binary information |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5955548A (en) * | 1982-09-25 | 1984-03-30 | Nippon Telegr & Teleph Corp <Ntt> | Recognition coding and decoding system |
JPH02126500A (en) * | 1988-11-04 | 1990-05-15 | Mitsubishi Electric Corp | Semiconductor memory device equipped with error detecting and correcting function |
JP2001043143A (en) * | 1997-09-30 | 2001-02-16 | Sony Corp | Storage device, data processing system, and writing and reading method for data |
KR100527610B1 (en) * | 1997-09-30 | 2006-03-28 | 소니 가부시끼 가이샤 | Storage devices, data processing systems, and how to record and read data |
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