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:
Feb. 24, 2009
Filed:
Mar. 11, 2005
Hideyo Fukunaga, Yokohama, JP;
Katsumi Imamura, Yokohama, JP;
Yasushi Kurokawa, Yokohama, JP;
Hideyuki Kudou, Yokohama, JP;
Yoko Watanabe, Yokohama, JP;
Hideyo Fukunaga, Yokohama, JP;
Katsumi Imamura, Yokohama, JP;
Yasushi Kurokawa, Yokohama, JP;
Hideyuki Kudou, Yokohama, JP;
Yoko Watanabe, Yokohama, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A packet transmission device improved in packet transmission efficiency. Each packet input processor generates a pointer and identifies a packet type with respect to a received packet, and generates identification data including the pointer and the packet type identification result. A memory access controller detects a header readout amount of the packet based on the packet type identification result, generates first readout data including the header readout amount and a readout pointer indicative of a storage location of the packet in a shared memory, and adaptively reads out header data of the packet from the shared memory in accordance with the first readout data. A protocol processor analyzes the destination of the read header data, and a packet updater updates the old destination address of the packet to a new one to generate a packet with the updated destination address, and outputs the generated packet.