The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 14, 1995
Filed:
Jul. 30, 1993
Qin Zheng, Belmont, MA (US);
Mitsubishi Electric Research Laboratories, Inc., Cambridge, MA (US);
Abstract
A system is provided for generating the minimum synchronous bandwidth allocation h.sub.i for token ring networks in which this minimum bandwidth allocation is utilized by the node to request appropriate synchronous bandwidth reservation from the network manager. This permits the synchronous bandwidth allocation h.sub.i to be set dependent upon the minimum message generation period, T, the maximum message transmission time, C, the requested message delivery delay bound, d, and the target token rotation time of the network, TTRT. The system is not limited to d=T as is common in prior systems, but rather accommodates any value of d. As a result, the system is both simpler to implement, and covers many more applications having different message delivery time constraints. The calculation of h.sub.i is done by ensuring that the time that a node is allowed to transmit messages in the worst-case is no smaller than the time that the node needs to satisfy the message delivery time constraints.