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:
Mar. 20, 2001
Filed:
Sep. 08, 1997
Eiichiro Takahashi, Yokohama, JP;
Makoto Inami, Tokyo, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An apparatus and a method for selecting an access router's protocol from a plurality of protocols in a communication system including first and second access routers for transferring a packet between the access routers according to the selected protocol. The packet is originated/terminated by users having a user address assigned and accommodated in the respective access routers. Storage is provided in the apparatus for storing a protocol type of the access router corresponding to the user address. The first access router issues a protocol request signal including the user address. The apparatus receives the protocol request signal and referring to the storage, responds to the signal with the protocol type of the second access router accommodating the user having the user address included in the request signal. The first access router, selects a protocol common to the first and second access routers to transfer the packet based on the response.