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:
Mar. 06, 2012
Filed:
May. 13, 2008
Russell Fagg, San Diego, CA (US);
Russell Fagg, San Diego, CA (US);
Qualcomm Incorporated, San Diego, CA (US);
Abstract
A switched-capacitor decimator that can attenuate undesired signal components at odd harmonics of an output sample rate is described. In one design, the switched-capacitor decimator includes at least one sampling capacitor and multiple switches. For each sampling capacitor, the top plate is charged with a first input signal when the capacitor is selected for top charging, and the bottom plate is charged with a second input signal when the capacitor is selected for bottom charging. For each sampling capacitor, the top plate provides its stored charges to a first output signal and the bottom plate provides its stored charges to a second output signal when the capacitor is selected for reading. The switches couple the at least one sampling capacitor to the first and second input signals for charging and to the first and second output signals for reading.