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. 11, 2011
Filed:
Oct. 12, 2006
Koji Shima, Kanagawa, JP;
Kazushige Machiyama, Tokyo, JP;
Koji Shima, Kanagawa, JP;
Kazushige Machiyama, Tokyo, JP;
Sony Computer Entertainment Inc., Tokyo, JP;
Abstract
Two logical partitions within a single computer communicate with each other internally. The protocol stack of a first logical partition generates a frame in a memory space provided in a driver and referred to by the first logical partition. The driver transfers the frame generated in the memory space of the first logical partition to a communication port of a Layerswitch using DMA. The communication port of the Layerswitch loops back the frame input from the driver. An interrupt is signaled to the driver and the frame is transferred from communication port of the Layerswitch to the driver using DMA. The frame is received in a memory space referred to by a second logical partition.