FI86922C - Foerfarande och anordning foer kontrollering av inskrivning i ett minne - Google Patents
Foerfarande och anordning foer kontrollering av inskrivning i ett minne Download PDFInfo
- Publication number
- FI86922C FI86922C FI900063A FI900063A FI86922C FI 86922 C FI86922 C FI 86922C FI 900063 A FI900063 A FI 900063A FI 900063 A FI900063 A FI 900063A FI 86922 C FI86922 C FI 86922C
- Authority
- FI
- Finland
- Prior art keywords
- memory
- key code
- writing
- write operation
- time limit
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C8/00—Arrangements for selecting an address in a digital store
- G11C8/20—Address safety or protection circuits, i.e. arrangements for preventing unauthorized or accidental access
-
- 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
- G06F12/1433—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 module or a part of a module
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/24—Memory cell safety or protection circuits, e.g. arrangements for preventing inadvertent reading or writing; Status cells; Test cells
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C8/00—Arrangements for selecting an address in a digital store
- G11C8/18—Address timing or clocking circuits; Address control signal generation or management, e.g. for row address strobe [RAS] or column address strobe [CAS] signals
-
- 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
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0751—Error or fault detection not based on redundancy
- G06F11/0754—Error or fault detection not based on redundancy by exceeding limits
- G06F11/0757—Error or fault detection not based on redundancy by exceeding limits by exceeding a time limit, i.e. time-out, e.g. watchdogs
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
- Storage Device Security (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI900063A FI86922C (fi) | 1990-01-05 | 1990-01-05 | Foerfarande och anordning foer kontrollering av inskrivning i ett minne |
PL29201391A PL292013A1 (en) | 1990-01-05 | 1991-01-02 | Method and device for controlling memory entry |
HU9202106A HU207593B (en) | 1990-01-05 | 1991-01-02 | Method and device for controlling storage |
PCT/FI1991/000005 WO1991010192A1 (en) | 1990-01-05 | 1991-01-02 | Method and apparatus for controlling writing to memory |
CA002070986A CA2070986A1 (en) | 1990-01-05 | 1991-01-02 | Method and apparatus for controlling writing to memory |
EP91901421A EP0507811A1 (de) | 1990-01-05 | 1991-01-02 | Verfahren und vorrichtung zur speichereinschreibsteuerung |
JP3501832A JPH05502957A (ja) | 1990-01-05 | 1991-01-02 | メモリ書き込み制御方法及び装置 |
AU69738/91A AU640442B2 (en) | 1990-01-05 | 1991-01-02 | Method and apparatus for controlling writing to memory |
NO922652A NO922652D0 (no) | 1990-01-05 | 1992-07-03 | Fremgangsmaate og apparat til kontroll av skriving til et dataminne |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI900063A FI86922C (fi) | 1990-01-05 | 1990-01-05 | Foerfarande och anordning foer kontrollering av inskrivning i ett minne |
FI900063 | 1990-01-05 |
Publications (4)
Publication Number | Publication Date |
---|---|
FI900063A0 FI900063A0 (fi) | 1990-01-05 |
FI900063A FI900063A (fi) | 1991-07-06 |
FI86922B FI86922B (fi) | 1992-07-15 |
FI86922C true FI86922C (fi) | 1992-10-26 |
Family
ID=8529649
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI900063A FI86922C (fi) | 1990-01-05 | 1990-01-05 | Foerfarande och anordning foer kontrollering av inskrivning i ett minne |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0507811A1 (de) |
JP (1) | JPH05502957A (de) |
AU (1) | AU640442B2 (de) |
CA (1) | CA2070986A1 (de) |
FI (1) | FI86922C (de) |
HU (1) | HU207593B (de) |
NO (1) | NO922652D0 (de) |
PL (1) | PL292013A1 (de) |
WO (1) | WO1991010192A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993007565A1 (en) * | 1991-10-01 | 1993-04-15 | Motorola, Inc. | Memory write protection method and apparatus |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4493031A (en) * | 1982-08-25 | 1985-01-08 | At&T Bell Laboratories | Memory write protection using timers |
DE3325887A1 (de) * | 1983-07-19 | 1985-01-31 | Bosch Gmbh Robert | Verfahren und vorrichtung zum schutz der mittels einer tastatur in einen ram-speicher eingegebenen informationen |
US4796235A (en) * | 1987-07-22 | 1989-01-03 | Motorola, Inc. | Write protect mechanism for non-volatile memory |
-
1990
- 1990-01-05 FI FI900063A patent/FI86922C/fi active IP Right Grant
-
1991
- 1991-01-02 WO PCT/FI1991/000005 patent/WO1991010192A1/en not_active Application Discontinuation
- 1991-01-02 AU AU69738/91A patent/AU640442B2/en not_active Ceased
- 1991-01-02 JP JP3501832A patent/JPH05502957A/ja active Pending
- 1991-01-02 CA CA002070986A patent/CA2070986A1/en not_active Abandoned
- 1991-01-02 HU HU9202106A patent/HU207593B/hu not_active IP Right Cessation
- 1991-01-02 PL PL29201391A patent/PL292013A1/xx unknown
- 1991-01-02 EP EP91901421A patent/EP0507811A1/de not_active Ceased
-
1992
- 1992-07-03 NO NO922652A patent/NO922652D0/no unknown
Also Published As
Publication number | Publication date |
---|---|
FI86922B (fi) | 1992-07-15 |
WO1991010192A1 (en) | 1991-07-11 |
JPH05502957A (ja) | 1993-05-20 |
FI900063A0 (fi) | 1990-01-05 |
AU640442B2 (en) | 1993-08-26 |
EP0507811A1 (de) | 1992-10-14 |
AU6973891A (en) | 1991-07-24 |
FI900063A (fi) | 1991-07-06 |
HU9202106D0 (en) | 1992-10-28 |
PL292013A1 (en) | 1992-03-23 |
HUT61109A (en) | 1992-11-30 |
NO922652L (no) | 1992-07-03 |
NO922652D0 (no) | 1992-07-03 |
CA2070986A1 (en) | 1991-07-06 |
HU207593B (en) | 1993-04-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Patent granted |
Owner name: RAHA-AUTOMAATTIYHDISTYS |