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:
Nov. 19, 1991
Filed:
Sep. 28, 1989
Ulrich Killat, Hamburg, DE;
Johann Kruger, Quickborn, DE;
U.S. Philips Corporation, New York, NY (US);
Abstract
The invention relates to a switching network for a communication system, comprising m/1 stages and in which cells are transmitted in accordance with a time-division multiple access method and the switching is effected on the basis of the routing information contained in the header. The arriving cells are temporarily stored in a buffer until a free frame is available. The queues built up in the buffers of the m/1 stages are to be processed in the most fair manner. For this purpose it is proposed to assign a memory to each m/1 stage of each auxiliary line (Zl . . . Zm), to which memory are applied the results of the comparisons between routing information and address of the trunk line (A) and to determine for the decision circuits the order in which the cells stored in the buffers (B) are read out.