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:
May. 11, 1993
Filed:
Jun. 22, 1990
Applicant:
Inventors:
Hideaki Yamanaka, Kanagawa, JP;
Kazuyoshi Oshima, Kanagawa, JP;
Toshihiro Shikama, Kanagawa, JP;
Shigeru Aoyama, Kanagawa, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04Q / ; H04J / ;
U.S. Cl.
CPC ...
370 60 ; 370 941 ;
Abstract
A cell exchange apparatus wherein cell input ports and cell output ports are divided into a plurality of groups and input cells are multiplexed for each group. Multiplexed cells are selected in accordance with their addresses with respect to output port groups and buffered by use of a plurality of buffers. Writing and reading of cells with respect to the buffers are controlled by a memory controller in accordance with the load on each buffer.