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. 21, 2006
Filed:
Apr. 25, 2002
Khurram Muhammad, Dallas, TX (US);
Dirk Leipold, Plano, TX (US);
Kenneth J. Maggio, Dallas, TX (US);
Khurram Muhammad, Dallas, TX (US);
Dirk Leipold, Plano, TX (US);
Kenneth J. Maggio, Dallas, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A first periodic voltage waveform () is downconverted into a second periodic voltage waveform (). A plurality of temporally distinct samples (SA, SA, . . . ) respectively indicative of areas under corresponding fractional-cycles of the first voltage waveform are obtained. The samples are combined to produce the second voltage waveform. The samples can be manipulated to provide gain adjustment to the second voltage waveform. The samples are obtained by charging a sampling capacitance in response to a current waveform that corresponds to the first voltage waveform. The use of different sampling capacitances during respective predetermined time intervals permits the signal strength of the first waveform to be determined from observation of the second waveform.