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:
Jan. 17, 2012
Filed:
Feb. 27, 2006
Mami Sekido, Yokohama, JP;
Akihiro Hata, Kawasaki, JP;
Satoshi Nishimura, Yokohama, JP;
Yuuji Kubo, Yokohama, JP;
Mami Sekido, Yokohama, JP;
Akihiro Hata, Kawasaki, JP;
Satoshi Nishimura, Yokohama, JP;
Yuuji Kubo, Yokohama, JP;
Fujitsu Semiconductor Limited, Yokohama, JP;
Abstract
A queue selection method for controlling selection of many queues without increasing the circuit scale is provided. Queues are organized into groups, and each group is created as a tree structure with a plurality of steps, and a queue is selected by selecting a group of each step. By this, even if the number of queues is enormous, it is sufficient to provide registers for managing the presence of packets only for the number of groups selected in each step, and it becomes unnecessary to provide registers for all of the queues, so an increase of registers can be suppressed even if the number of queues increases. It is preferable that group selection in each step is performed in parallel independently from pipeline processing so as to maintain high-speed operation.