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. 22, 2010
Lutz Naumann, Haan, DE;
Adrian Helwig, Duesseldorf, DE;
Wendyam Traore, Sachse, TX (US);
Karl-heinz Steinmetz, Durmersheim, DE;
Andreas Fees, Pliezhausen, DE;
Lutz Naumann, Haan, DE;
Adrian Helwig, Duesseldorf, DE;
Wendyam Traore, Sachse, TX (US);
Karl-Heinz Steinmetz, Durmersheim, DE;
Andreas Fees, Pliezhausen, DE;
Texas Instruments Incorporated, Dallas, TX (US);
Texas Instruments Deutschland, Freising, DE;
Abstract
A system is provided which includes a signal generator for generating a periodic excitation signal and an analog to digital converter, wherein the system is configured to apply the periodic excitation signal to a network including a known first impedance and a second impedance and to take a first set of M digital samples of a first signal relating to the first impedance and a second set of M digital samples of a second signal relating to the second impedance with a sampling frequency that is an integer multiple of the frequency of the periodic signal. The system is further configured to determine the impedance value of the second impedance by calculating a relative phase difference between the first signal and the second signal using the first set of digital samples and the second set of digital samples.