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:
Apr. 04, 2006
Filed:
Aug. 07, 2001
Applicants:
Norihiko Moriwaki, Kokubunji, JP;
Takahiko Kozaki, Tokyo, JP;
Masami Takahashi, Fujisawa, JP;
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04J 3/26 (2006.01); H04L 12/56 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a packet switching apparatus capable of multicast, the length of a bitmap added to a multicast packet is made variable, depending on the number of line interface cards housed in the packet switching apparatus.