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:
Nov. 26, 2013
Filed:
Dec. 05, 2011
Chih-hsin Lin, Taoyuan, TW;
Tsung-huang Chen, New Taipei, TW;
Bing-shiun Wang, Keelung, TW;
Jen-pin Su, Zhubei, TW;
Chih-Hsin Lin, Taoyuan, TW;
Tsung-Huang Chen, New Taipei, TW;
Bing-Shiun Wang, Keelung, TW;
Jen-Pin Su, Zhubei, TW;
Mediatek Inc., Hsin-Chu, TW;
Abstract
A controller for a DDR PSRAM is provided. The controller includes a single rate processing unit, a double rate processing unit and a selector. The signal rate processing unit obtains a single data rate data according to a first data and a first clock. The double rate processing unit obtains a double data rate data according to a second data and a second clock that is two times the frequency of the first clock. The selector selectively provides any of the single data rate data and the double data rate data to the DDR PSRAM via a common bus according to a control signal.