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:
Aug. 14, 2012
Filed:
Feb. 03, 2010
Hideki Endo, Kawasaki, JP;
Akihiko Tanaka, Yokohama, JP;
Takayuki Kanno, Yokohama, JP;
Masayuki Takase, Fujisawa, JP;
Taisuke Ueta, Kokubunji, JP;
Hideki Endo, Kawasaki, JP;
Akihiko Tanaka, Yokohama, JP;
Takayuki Kanno, Yokohama, JP;
Masayuki Takase, Fujisawa, JP;
Taisuke Ueta, Kokubunji, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A packet communication apparatus includes a frame buffer of a linked list method and holds chain information and buffer size information, for structuring a linked list buffer for each user flow, in two areas consisting of an operation area and an update area. While usually in service, the buffer is structured by using the chain information in the operation area and the buffer size information in the same area such that the frame is read/written in the frame buffer. When the chain information in the update area and the buffer size information in the same area have been changed, a queue size is changed by reflecting the updated chain information and the updater buffer size information into the operation area, when both the read pointer and the write pointer respectively have gone around the buffer, or when there is no frame stored in the buffer.