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. 26, 2011
Filed:
Oct. 29, 2009
Applicants:
Sang-hyun Cho, Daejeon, KR;
Seung-tak Ryu, Daejeon, KR;
Barosaim Sung, Daejeon, KR;
Inventors:
Assignee:
Korea Advanced Institute of Science and Technology, Daejeon, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
An apparatus for digital error correction in a successive approximation (SAR) analog to digital converter (ADC) includes a binary weighted digital to analog converter (DAC) which can be virtually divided into multiple sub-DACs for redundancy insertion; and a comparator configured to compare the analog input with a DAC level corresponding to digital. The apparatus further includes a register and control logic unit configured to control a switching operation for DAC and to add output codes obtained from sub-DACs to output the added code as a final A/D converted code.