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. 06, 1996
Filed:
May. 24, 1994
Takumi Tanabe, Osaka, JP;
Hiroaki Asano, Katano, JP;
Shinako Nishioka, Kyoto, JP;
Osamu Tanaka, Neyagawa, JP;
Shiro Iwasaki, Iizuka, JP;
Matsushita Electric Industrial Company, Ltd., Osaka, JP;
Abstract
The invention provides a communication network system which permits parallel access of a plurality of nodes to a transmission line and which has a high throughput and low delay, with fairness among the nodes maintained. In the communication network system, a plurality of tokens correspondingly associated with the nodes, respectively, are allowed to circulate on the transmission line. Each node is allowed to transmit data only when the frame insertion buffer is empty. The node, when having data to be transmitted, awaits the arrival of a token. If a token that has arrived corresponds to the self node, or if a node corresponding to the arrived token is downstream of the destination node as viewed from the own self node, the node forms a packet from its holding data and transmits it onto the transmission line.