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. 25, 2014
Filed:
Jan. 29, 2009
Keiji Miyazaki, Kawasaki, JP;
Keiji Miyazaki, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An apparatus for calculating a plurality of end-to-end paths communicably connecting two terminal nodes in a communication network divided into a plurality of areas. The apparatus selects, among the plurality of areas, a first sequence of passage areas to be traversed by a first end-to-end path, and selects, among the first sequence of passage areas, multi-path passing areas each defined as an area to be traversed by two or more end-to-end paths. The apparatus further calculates two or more intra-area paths for each of the multi-path passage areas, and determines the first end-to-end path by selecting a first intra-area path among the calculated intra-area paths for each of the multi-path passing areas so that the first end-to-end path includes the selected first intra-area paths as a segment thereof and traverses the first sequence of passage areas.