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:
Jul. 11, 1995
Filed:
Feb. 28, 1994
Kimmy F Nimon, Arlington, TX (US);
DSC Communications Corporation, Plano, TX (US);
Abstract
A synchronized node control system, which provides an interface between user processors, which originate and receive messages, and a packet switching network that uses a multi-level communications protocol. Clusters of user processors are each associated with a node controller that communicates with a gateway of the switching network. Each node controller is programmed to handle level two protocols for communicating messages between node controllers, and level three protocols for communicating messages between said user processors. Each node controller is further programmed to perform processes associated with these protocols such that all node controllers perform the same schedule of processes during a node control frame period. Each node controller is further programmed to synchronize its internal level two and level three operations within the node controller frame period, and to synchronize its level two processes, such that an originating and a destination node controller transfer a particular packet during a packet frame period.