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. 17, 2004
Filed:
Apr. 03, 2000
Isamu Ishimura, Kyoto, JP;
Hiroshi Yoshida, Osaka, JP;
Yoshihiro Tabira, Osaka, JP;
Hirotaka Ito, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A reception buffer, a transmission buffer, a transmission-reception buffer, a reception filter, a transmission filter and a packet processor are provided. If a response packet paired with a request packet has been received during a data exchange operation, then the reception filter stores the response packet received on the transmission-reception buffer and informs the packet processor of response detected. Alternatively, if a packet that has nothing to do with the current data exchange operation has been received, then the reception filter stores the received packet on the reception buffer and issues a suspension instruction to the packet processor. And when a transaction being carried out at the time of reception is completed, the packet processor suspends the data exchange. In this manner, the overheads involved with firmware processing by a central processing unit can be reduced and data can be exchanged at higher speeds.