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:
Feb. 24, 2015
Filed:
Oct. 16, 2009
Puay Hoe See, San Diego, CA (US);
Gary J. Ballantyne, Christchurch, NZ;
Gurkanwal Singh Sahota, San Diego, CA (US);
Aristotele Hadjichristos, Cary, NC (US);
Alberto Cicalini, San Diego, CA (US);
Puay Hoe See, San Diego, CA (US);
Gary J. Ballantyne, Christchurch, NZ;
Gurkanwal Singh Sahota, San Diego, CA (US);
Aristotele Hadjichristos, Cary, NC (US);
Alberto Cicalini, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Exemplary embodiments disclosed are directed to power and impedance measurement circuits that may be used to measure power and/or impedance are described. A measurement circuit may include a sensor and a computation unit. The sensor may sense (i) a first voltage signal across a series circuit coupled to a load to obtain a first sensed signal and (ii) a second voltage signal at a designated end of the series circuit to obtain a second sensed signal. The sensor may mix (i) a first version of the first sensed signal with a first version of the second sensed signal to obtain a first sensor output and (ii) a second version of the first sensed signal with a second version of the second sensed signal to obtain a second sensor output. The computation unit may determine the impedance and/or delivered power at the designated end of the series circuit based on the sensor outputs.