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. 28, 2013
Filed:
Oct. 04, 2011
Applicant:
Yi-lung Chen, Keelung, TW;
Inventor:
Yi-Lung Chen, Keelung, TW;
Assignee:
ISSC Technologies Corp., Hsinchu, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/00 (2006.01); H03M 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a dual mode sigma delta analog to digital converter (ADC), which only in one hardware implementation, used for low IF and near zero IF receiver. The dual mode sigma delta ADC comprises a first switched-capacitor integrator; a second switched-capacitor integrator; a quantizer; a feedback circuit and a mode device. By switching the mode device on or off, one could easily change the configuration of the disclosed ADC to decide the receiving signal falling in low-IF or near zero IF.