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:
Jul. 05, 2005
Filed:
Apr. 11, 2003
Applicant:
Yuji Kawase, Matsumoto, JP;
Inventor:
Yuji Kawase, Matsumoto, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F013/28 ;
U.S. Cl.
CPC ...
Abstract
Complex control procedures employ direct memory access by a first DMA processing unitto send control data to a first controller by means of DMA channelsto, and by a second DMA processing unitto send control data to a second controllerby means of DMA channelsto. The first DMA processing unitalso has a branching controlleras a DMA channel for transferring timing data to a second timer. When a time specified by the received timing data passes, the second timersends an activation signal to DMA channelof the second DMA processing unit, and the DMA channelstoare thereafter sequentially activated.