GB2192739B - Selective input/output port protection - Google Patents
Selective input/output port protectionInfo
- Publication number
- GB2192739B GB2192739B GB8703091A GB8703091A GB2192739B GB 2192739 B GB2192739 B GB 2192739B GB 8703091 A GB8703091 A GB 8703091A GB 8703091 A GB8703091 A GB 8703091A GB 2192739 B GB2192739 B GB 2192739B
- Authority
- GB
- United Kingdom
- Prior art keywords
- output port
- port protection
- selective input
- selective
- input
- 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.)
- Expired - Lifetime
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
- G06F12/1458—Protection against unauthorised use of memory or access to memory by checking the subject access rights
- G06F12/1483—Protection against unauthorised use of memory or access to memory by checking the subject access rights using an access-table, e.g. matrix or list
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/06—Addressing a physical block of locations, e.g. base addressing, module addressing, memory dedication
- G06F12/0646—Configuration or reconfiguration
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/10—Program control for peripheral devices
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Computer Security & Cryptography (AREA)
- Storage Device Security (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US88691886A | 1986-07-18 | 1986-07-18 |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8703091D0 GB8703091D0 (en) | 1987-03-18 |
GB2192739A GB2192739A (en) | 1988-01-20 |
GB2192739B true GB2192739B (en) | 1991-02-13 |
Family
ID=25390078
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8703091A Expired - Lifetime GB2192739B (en) | 1986-07-18 | 1987-02-11 | Selective input/output port protection |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS6329849A (en) |
FR (1) | FR2601793B1 (en) |
GB (1) | GB2192739B (en) |
HK (1) | HK26896A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4656347B2 (en) | 2009-04-14 | 2011-03-23 | 日本電気株式会社 | Computer system |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3668651A (en) * | 1970-12-30 | 1972-06-06 | Ibm | Working device code method of i/o control |
GB1497600A (en) * | 1974-12-29 | 1978-01-12 | Fujitsu Ltd | Data processing apparatus |
US4135240A (en) * | 1973-07-09 | 1979-01-16 | Bell Telephone Laboratories, Incorporated | Protection of data file contents |
GB2070302A (en) * | 1980-02-19 | 1981-09-03 | Omron Tateisi Electronics Co | Data communication system |
GB2123189A (en) * | 1982-06-05 | 1984-01-25 | British Aerospace | Communication between computers |
EP0166984A2 (en) * | 1984-06-29 | 1986-01-08 | International Business Machines Corporation | A multiprocessor resource locking system and its method of operation |
EP0172342A2 (en) * | 1984-08-22 | 1986-02-26 | Data General Corporation | Bus control gate array |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS595361A (en) * | 1982-06-29 | 1984-01-12 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | Operation of calculator |
DE3373848D1 (en) * | 1983-02-23 | 1987-10-29 | Ibm | Interactive work station with auxiliary microprocessor for storage protection |
JPS60254335A (en) * | 1984-05-31 | 1985-12-16 | Fujitsu Ltd | Multiplex processing system in software test |
-
1987
- 1987-02-11 GB GB8703091A patent/GB2192739B/en not_active Expired - Lifetime
- 1987-03-31 FR FR8704499A patent/FR2601793B1/en not_active Expired - Lifetime
- 1987-07-17 JP JP17737487A patent/JPS6329849A/en active Pending
-
1996
- 1996-02-15 HK HK26896A patent/HK26896A/en not_active IP Right Cessation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3668651A (en) * | 1970-12-30 | 1972-06-06 | Ibm | Working device code method of i/o control |
US4135240A (en) * | 1973-07-09 | 1979-01-16 | Bell Telephone Laboratories, Incorporated | Protection of data file contents |
GB1497600A (en) * | 1974-12-29 | 1978-01-12 | Fujitsu Ltd | Data processing apparatus |
GB2070302A (en) * | 1980-02-19 | 1981-09-03 | Omron Tateisi Electronics Co | Data communication system |
GB2123189A (en) * | 1982-06-05 | 1984-01-25 | British Aerospace | Communication between computers |
EP0166984A2 (en) * | 1984-06-29 | 1986-01-08 | International Business Machines Corporation | A multiprocessor resource locking system and its method of operation |
EP0172342A2 (en) * | 1984-08-22 | 1986-02-26 | Data General Corporation | Bus control gate array |
Also Published As
Publication number | Publication date |
---|---|
FR2601793B1 (en) | 1993-05-07 |
JPS6329849A (en) | 1988-02-08 |
HK26896A (en) | 1996-02-23 |
GB2192739A (en) | 1988-01-20 |
FR2601793A1 (en) | 1988-01-22 |
GB8703091D0 (en) | 1987-03-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
PE20 | Patent expired after termination of 20 years |
Effective date: 20070210 |