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:
May. 24, 2005
Filed:
Sep. 29, 2003
Applicants:
Lixin Zhao, Fremont, CA (US);
Zhongxuan Zhang, Fremont, CA (US);
Inventors:
Lixin Zhao, Fremont, CA (US);
Zhongxuan Zhang, Fremont, CA (US);
Assignee:
UTStarcom, Inc., Alameda, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03M001/66 ;
U.S. Cl.
CPC ...
Abstract
A digital to analog converter (DAC) for a communications system with reduced intersymbol interference incorporates dynamic element matching (DEM) with a matching element array having 2M bits for an input corresponding to M+1 levels thereby employing only one half the range of the DEM and array to produce the DAC output.