FR2282676B1 - - Google Patents
Info
- Publication number
- FR2282676B1 FR2282676B1 FR7525490A FR7525490A FR2282676B1 FR 2282676 B1 FR2282676 B1 FR 2282676B1 FR 7525490 A FR7525490 A FR 7525490A FR 7525490 A FR7525490 A FR 7525490A FR 2282676 B1 FR2282676 B1 FR 2282676B1
- Authority
- FR
- France
- 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.)
- Expired
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
- G06F11/1008—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
- G06F11/1012—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 using codes or arrangements adapted for a specific type of error
- G06F11/1016—Error in accessing a memory location, i.e. addressing error
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/14—Protection against unauthorised use of memory or access to memory
- G06F12/1458—Protection against unauthorised use of memory or access to memory by checking the subject access rights
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Security & Cryptography (AREA)
- Quality & Reliability (AREA)
- Detection And Correction Of Errors (AREA)
- Storage Device Security (AREA)
- Error Detection And Correction (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US498824A US3920976A (en) | 1974-08-19 | 1974-08-19 | Information storage security system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2282676A1 FR2282676A1 (fr) | 1976-03-19 |
| FR2282676B1 true FR2282676B1 (US08124630-20120228-C00102.png) | 1979-05-18 |
Family
ID=23982653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7525490A Granted FR2282676A1 (fr) | 1974-08-19 | 1975-08-18 | Systeme de securite pour memoire informatique |
Country Status (5)
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4839117A (US08124630-20120228-C00102.png) * | 1971-09-21 | 1973-06-08 | ||
| GB1536853A (en) * | 1975-05-01 | 1978-12-20 | Plessey Co Ltd | Data processing read and hold facility |
| US4087856A (en) * | 1976-06-30 | 1978-05-02 | International Business Machines Corporation | Location dependence for assuring the security of system-control operations |
| DE2655653C2 (de) * | 1976-12-08 | 1982-12-16 | Siemens AG, 1000 Berlin und 8000 München | Anordnung zur Feststellung der richtigen Zuordnung von Adresse und Speicherwort in einem wortorganisierten Datenspeicher |
| US4241396A (en) * | 1978-10-23 | 1980-12-23 | International Business Machines Corporation | Tagged pointer handling apparatus |
| US4244049A (en) * | 1979-02-02 | 1981-01-06 | Burroughs Corporation | Method and apparatus for enhancing I/O transfers in a named data processing system |
| JPS58139399A (ja) * | 1982-02-15 | 1983-08-18 | Hitachi Ltd | 半導体記憶装置 |
| US5177743A (en) * | 1982-02-15 | 1993-01-05 | Hitachi, Ltd. | Semiconductor memory |
| US4943967A (en) * | 1982-02-15 | 1990-07-24 | Hitachi, Ltd. | Semiconductor memory with an improved dummy cell arrangement and with a built-in error correction code circuit |
| US4521852A (en) * | 1982-06-30 | 1985-06-04 | Texas Instruments Incorporated | Data processing device formed on a single semiconductor substrate having secure memory |
| US4521853A (en) * | 1982-06-30 | 1985-06-04 | Texas Instruments Incorporated | Secure microprocessor/microcomputer with secured memory |
| FR2661532A1 (fr) * | 1990-04-26 | 1991-10-31 | Sgs Thomson Microelectronics | Memoire a acces protege mot par mot. |
| EP0506234B1 (en) * | 1991-02-27 | 1998-06-10 | Canon Kabushiki Kaisha | Method for detecting improper rewriting of stored data |
| DE69227051T2 (de) * | 1991-02-27 | 1999-03-11 | Canon K.K., Tokio/Tokyo | Verfahren zur Entdeckung inkorrekter Überschreibung gespeicherter Daten |
| US5440731A (en) * | 1991-03-15 | 1995-08-08 | Canon Kabushiki Kaisha | Method of detecting unjustifiable reloading of stored data |
| US5652837A (en) * | 1993-03-22 | 1997-07-29 | Digital Equipment Corporation | Mechanism for screening commands issued over a communications bus for selective execution by a processor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL285817A (US08124630-20120228-C00102.png) * | 1961-11-22 |
-
1974
- 1974-08-19 US US498824A patent/US3920976A/en not_active Expired - Lifetime
-
1975
- 1975-06-25 IT IT24777/75A patent/IT1039491B/it active
- 1975-08-14 JP JP50099428A patent/JPS5145934A/ja active Pending
- 1975-08-16 DE DE19752536498 patent/DE2536498A1/de active Pending
- 1975-08-18 FR FR7525490A patent/FR2282676A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5145934A (US08124630-20120228-C00102.png) | 1976-04-19 |
| IT1039491B (it) | 1979-12-10 |
| US3920976A (en) | 1975-11-18 |
| FR2282676A1 (fr) | 1976-03-19 |
| DE2536498A1 (de) | 1976-03-04 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |