JPS55101199A - Memory refresh unit - Google Patents
Memory refresh unitInfo
- Publication number
- JPS55101199A JPS55101199A JP484279A JP484279A JPS55101199A JP S55101199 A JPS55101199 A JP S55101199A JP 484279 A JP484279 A JP 484279A JP 484279 A JP484279 A JP 484279A JP S55101199 A JPS55101199 A JP S55101199A
- Authority
- JP
- Japan
- Prior art keywords
- memory
- error
- read
- time
- register
- 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
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
- G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
- G06F11/1076—Parity data used in redundant arrays of independent storages, e.g. in RAID systems
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
- G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
- G06F11/1008—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP484279A JPS55101199A (en) | 1979-01-22 | 1979-01-22 | Memory refresh unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP484279A JPS55101199A (en) | 1979-01-22 | 1979-01-22 | Memory refresh unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55101199A true JPS55101199A (en) | 1980-08-01 |
Family
ID=11594929
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP484279A Pending JPS55101199A (en) | 1979-01-22 | 1979-01-22 | Memory refresh unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55101199A (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6029843A (ja) * | 1983-07-28 | 1985-02-15 | Fujitsu Ltd | マイクロプログラム制御装置 |
JPS60231247A (ja) * | 1984-05-01 | 1985-11-16 | Nippon C Ee D Kk | コンピユ−タ装置 |
JPS62212854A (ja) * | 1986-03-14 | 1987-09-18 | Nippon Telegr & Teleph Corp <Ntt> | 自動誤り訂正記憶装置 |
WO2001006511A1 (en) * | 1999-07-16 | 2001-01-25 | Koninklijke Philips Electronics N.V. | Recording medium with write protected defect list |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5128484A (ja) * | 1974-09-04 | 1976-03-10 | Hitachi Ltd | Ichigimekiko |
-
1979
- 1979-01-22 JP JP484279A patent/JPS55101199A/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5128484A (ja) * | 1974-09-04 | 1976-03-10 | Hitachi Ltd | Ichigimekiko |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6029843A (ja) * | 1983-07-28 | 1985-02-15 | Fujitsu Ltd | マイクロプログラム制御装置 |
JPH0529934B2 (ja) * | 1983-07-28 | 1993-05-06 | Fujitsu Ltd | |
JPS60231247A (ja) * | 1984-05-01 | 1985-11-16 | Nippon C Ee D Kk | コンピユ−タ装置 |
JPS62212854A (ja) * | 1986-03-14 | 1987-09-18 | Nippon Telegr & Teleph Corp <Ntt> | 自動誤り訂正記憶装置 |
WO2001006511A1 (en) * | 1999-07-16 | 2001-01-25 | Koninklijke Philips Electronics N.V. | Recording medium with write protected defect list |
CN1319065C (zh) * | 1999-07-16 | 2007-05-30 | 皇家菲利浦电子有限公司 | 信息记录方法与设备 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS53103328A (en) | Memory system having error detecting and correcting device | |
JPS5637896A (en) | Error correction system | |
JPS6470999A (en) | Method and apparatus for memory test | |
DK526784D0 (da) | Fejlretningsanordning ved et databehandlingsanlaegs lagerenhed | |
GB2179183B (en) | Dynamic memory refresh and parity checking circuit | |
JPS5758210A (en) | Error correction range controlling circuit | |
JPS55101199A (en) | Memory refresh unit | |
JPS5555499A (en) | Memory control unit | |
JPS5698781A (en) | Semiconductor memory device | |
JPS5318925A (en) | Memory control unit | |
JPS5532110A (en) | Check circuit for error correcting circuit | |
JPS5744294A (en) | Alternating memory control system | |
JPS5746400A (en) | Memory device | |
JPS57113497A (en) | Error correction system | |
JPS558617A (en) | Storage system | |
JPS5452936A (en) | Memroy processor | |
JPS54157045A (en) | Memory unit | |
JPS5690349A (en) | Error correction code circuit | |
JPS57152598A (en) | Data processing device | |
JPS5766597A (en) | Error correction circuit | |
JPS57161947A (en) | Microprogram controlled information processing device | |
JPS57100694A (en) | Storage device | |
JPS58196694A (ja) | 記憶装置 | |
JPS5736500A (en) | Memory check system | |
JPS5694592A (en) | Data processor |