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. 07, 2006
Filed:
Apr. 14, 2003
Timothy Tseng, Taipei Hsien, TW;
Murphy Chen, Taipei Hsien, TW;
Timothy Tseng, Taipei Hsien, TW;
Murphy Chen, Taipei Hsien, TW;
VIA Technologies Inc., Hsin-Tien, TW;
Abstract
A controller embeds a volatile memory, a plurality of application circuits and an arbiter. Each of the application circuits is capable of sending a request signal to request access the volatile memory and has a unique priority. When some of the application circuits send requests in a same period, the arbiter selects application circuits with higher priority among those application circuits such that the selected application circuits are allowed to access the volatile memory. The arbiter includes a plurality of arbiter modules and a main arbiter module. Each of the arbiter modules is assigned to a unique set of application circuits in the controller such that the arbiter modules can select higher priority application circuits in the corresponding sets at the same time. The main arbiter module further selects application circuits for accessing the volatile memory according to application circuits selected by the arbiter modules.