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.

Date of Patent:
Feb. 05, 2013

Filed:

May. 15, 2007
Applicants:

Hideyuki Kamii, Toyama, JP;

Mitsuru Toyoda, Toyama, JP;

Inventors:

Hideyuki Kamii, Toyama, JP;

Mitsuru Toyoda, Toyama, JP;

Assignee:

Media Logic Corp., Toyama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 13/00 (2006.01); G06F 17/30 (2006.01);
U.S. Cl.
CPC ...
Abstract

A device controller that improves transfer speed when the total data amount to be transferred exceeds a predetermined amount, without requiring a special configuration in the device. The device controller includes a cache memory that caches data received from an application software or device driver and data received from a target device, and a control unit that transfers the data cached in the cache memory to the target device and the application software or device driver. The control unit receives a read or write request from upstream and caches the transfer data in the cache memory. During writing, the data received from upstream is cached, and once a certain amount of data has been collected, it is sent downstream. During reading, a certain amount of data is collectively read out from downstream and sent upstream.


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