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.

Date of Patent:
Mar. 21, 2006

Filed:

Aug. 29, 2001
Applicants:

Koji Wakayama, Cannes, FR;

Ken'ichi Sakamoto, Kokubunji, JP;

Hiroaki Miyata, Yokohama, JP;

Shiro Tanabe, Hidaka, JP;

Inventors:

Koji Wakayama, Cannes, FR;

Ken'ichi Sakamoto, Kokubunji, JP;

Hiroaki Miyata, Yokohama, JP;

Shiro Tanabe, Hidaka, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/66 (2006.01);
U.S. Cl.
CPC ...
Abstract

A packet switching apparatus is constructed by a basic module disposed in the apparatus casing and an additional module disposed on the outside of the apparatus casing. The basic module has a common processing function irrespective of an access method and a service type, an interface accommodating lines to be connected to the Internet, and a plurality of interface boards conformed to a specific access method by which a hardware scale may be small. Only the basic module functions as a packet switching apparatus, and a processing function peculiar to each access method and service type is executed by the additional module.


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