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. 20, 2012
Filed:
May. 25, 2010
Applicant:
Chuan Lin, Beijing, CN;
Inventor:
Chuan Lin, Beijing, CN;
Assignee:
Vimicro Corporation, Beijing, CN;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Techniques pertaining the designs of memory controller are disclosed. According to one aspect of the present invention, a memory controller reduces delays in a data strobe signal of a DDR memory relative to a clock signal of a memory controller thereof. In one embodiment, the memory controller employs four IO ports, two inverters, six edge triggers and a multiplexer. By feeding back an inverted clock signal and utilizing the rising and filing edges of the clock signal, the delays in a data strobe signal of a DDR memory relative to a clock signal of a memory controller are considerably reduced or minimized.