JPS6473839A - Method and device for access control - Google Patents
Method and device for access controlInfo
- Publication number
- JPS6473839A JPS6473839A JP23148487A JP23148487A JPS6473839A JP S6473839 A JPS6473839 A JP S6473839A JP 23148487 A JP23148487 A JP 23148487A JP 23148487 A JP23148487 A JP 23148487A JP S6473839 A JPS6473839 A JP S6473839A
- Authority
- JP
- Japan
- Prior art keywords
- address
- access
- value
- bias
- bias value
- 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.)
- Granted
Links
Landscapes
- Small-Scale Networks (AREA)
Abstract
PURPOSE:To enable each terminal to make access to a communication network fairly and at high speed, by performing access control based on an access address value generated from a common address bias value and its own fixed address value, and changing the above stated address bias value. CONSTITUTION:An access control circuit 11 generates the access address from the address value 14 of the terminal and the bias value supplied in common from an address control circuit 54 by a control bus 52, and sends it to an address bus 53. A bus 51 informs the release of an access right to other terminals and an address bias circuit 54. The terminal acquiring the access right sends a signal representing the transfer of the access right, and the termi nal from which an access request is issued starts the contention control of the access right, and also, the address bias circuit 54 updates the bias value. Thus, it is possible to realize fair access by changing the common bias value.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62231484A JPH0624374B2 (en) | 1987-09-14 | 1987-09-14 | Access control method and apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62231484A JPH0624374B2 (en) | 1987-09-14 | 1987-09-14 | Access control method and apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6473839A true JPS6473839A (en) | 1989-03-20 |
JPH0624374B2 JPH0624374B2 (en) | 1994-03-30 |
Family
ID=16924215
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62231484A Expired - Lifetime JPH0624374B2 (en) | 1987-09-14 | 1987-09-14 | Access control method and apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0624374B2 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57152026A (en) * | 1981-03-13 | 1982-09-20 | Hitachi Ltd | Method and apparatus for self-control of decentralized priority competition |
JPS5979366A (en) * | 1982-10-28 | 1984-05-08 | Nec Corp | Cpu board |
JPS61147360A (en) * | 1984-12-21 | 1986-07-05 | Canon Inc | Resource common use system |
JPS6299842A (en) * | 1985-10-25 | 1987-05-09 | Casio Comput Co Ltd | Access system for memory address |
-
1987
- 1987-09-14 JP JP62231484A patent/JPH0624374B2/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57152026A (en) * | 1981-03-13 | 1982-09-20 | Hitachi Ltd | Method and apparatus for self-control of decentralized priority competition |
JPS5979366A (en) * | 1982-10-28 | 1984-05-08 | Nec Corp | Cpu board |
JPS61147360A (en) * | 1984-12-21 | 1986-07-05 | Canon Inc | Resource common use system |
JPS6299842A (en) * | 1985-10-25 | 1987-05-09 | Casio Comput Co Ltd | Access system for memory address |
Also Published As
Publication number | Publication date |
---|---|
JPH0624374B2 (en) | 1994-03-30 |
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