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:
Aug. 02, 2011
Filed:
Sep. 29, 2005
Michael Mills, Austin, TX (US);
Marius Goldenberg, Austin, TX (US);
Yan Zhou, Austin, TX (US);
Jeffrey Whaley, Dripping Springs, TX (US);
Michael Mills, Austin, TX (US);
Marius Goldenberg, Austin, TX (US);
Yan Zhou, Austin, TX (US);
Jeffrey Whaley, Dripping Springs, TX (US);
Silicon Laboratories Inc., Austin, TX (US);
Abstract
In one embodiment, a subscriber line interface circuit includes circuitry to generate metering pulses for insertion onto a subscriber line. The circuitry includes an audio path and a pulse metering path, where the pulse metering path includes a metering generator to generate a digital sine wave from a plurality of stored values, a first interpolator to interpolate the digital sine wave, a filter to filter the interpolated digital sine wave, and a second interpolator to interpolate the filtered interpolated digital sine wave.