BE753386A - Procede et circuit de protection pour unite de memoires - Google Patents
Procede et circuit de protection pour unite de memoiresInfo
- Publication number
- BE753386A BE753386A BE753386A BE753386A BE753386A BE 753386 A BE753386 A BE 753386A BE 753386 A BE753386 A BE 753386A BE 753386 A BE753386 A BE 753386A BE 753386 A BE753386 A BE 753386A
- Authority
- BE
- Belgium
- Prior art keywords
- circuit
- memory unit
- protection process
- protection
- memory
- Prior art date
Links
Classifications
-
- 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
- G06F12/1416—Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights
- G06F12/1425—Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights the protection being physical, e.g. cell, word, block
- G06F12/1441—Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights the protection being physical, e.g. cell, word, block for a range
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Storage Device Security (AREA)
- Information Transfer Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US85739869A | 1969-09-12 | 1969-09-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE753386A true BE753386A (fr) | 1970-12-16 |
Family
ID=25325911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE753386A BE753386A (fr) | 1969-09-12 | 1970-07-13 | Procede et circuit de protection pour unite de memoires |
Country Status (5)
Country | Link |
---|---|
US (1) | US3585606A (fr) |
BE (1) | BE753386A (fr) |
CA (1) | CA918812A (fr) |
FR (1) | FR2065689B1 (fr) |
GB (1) | GB1255300A (fr) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3827029A (en) * | 1972-09-25 | 1974-07-30 | Westinghouse Electric Corp | Memory and program protection system for a digital computer system |
JPS532296B2 (fr) * | 1973-03-19 | 1978-01-26 | ||
US3931611A (en) * | 1973-12-10 | 1976-01-06 | Amdahl Corporation | Program event recorder and data processing system |
US3890601A (en) * | 1974-03-11 | 1975-06-17 | Philco Ford Corp | Password operated system for preventing unauthorized or accidental computer memory alteration |
GB1561482A (en) * | 1976-11-18 | 1980-02-20 | Ibm | Protection of data processing system against unauthorised programmes |
DE3320378A1 (de) * | 1982-06-07 | 1983-12-15 | Fortune Systems Corp | Programmschutzvorrichtung fuer computerprogramme |
US4588991A (en) * | 1983-03-07 | 1986-05-13 | Atalla Corporation | File access security method and means |
JPS6095769A (ja) * | 1983-10-31 | 1985-05-29 | Toshiba Corp | デイスク記録再生装置 |
GB8524455D0 (en) * | 1985-10-03 | 1985-11-06 | Isolation Systems Ltd | Monitoring activity of peripheral devices |
US4993030A (en) * | 1988-04-22 | 1991-02-12 | Amdahl Corporation | File system for a plurality of storage classes |
US5452432A (en) * | 1990-08-14 | 1995-09-19 | Chips And Technologies, Inc. | Partially resettable, segmented DMA counter |
US6172538B1 (en) | 1999-01-06 | 2001-01-09 | Chips & Technologies, L.L.C. | Universal pulse synchronizer |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB839246A (en) * | 1956-02-14 | 1960-06-29 | Internat Computers And Tafulat | Improvements in or relating to electronic computing apparatus |
US3297994A (en) * | 1963-06-10 | 1967-01-10 | Beckman Instruments Inc | Data processing system having programmable, multiple buffers and signalling and data selection capabilities |
-
1969
- 1969-09-12 US US857398A patent/US3585606A/en not_active Expired - Lifetime
-
1970
- 1970-07-07 FR FR7026329A patent/FR2065689B1/fr not_active Expired
- 1970-07-13 BE BE753386A patent/BE753386A/fr unknown
- 1970-08-12 GB GB38801/70A patent/GB1255300A/en not_active Expired
- 1970-08-21 CA CA091285A patent/CA918812A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1255300A (en) | 1971-12-01 |
DE2044049A1 (de) | 1971-04-01 |
CA918812A (en) | 1973-01-09 |
FR2065689A1 (fr) | 1971-08-06 |
FR2065689B1 (fr) | 1973-11-16 |
US3585606A (en) | 1971-06-15 |
DE2044049B2 (de) | 1971-12-16 |
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