Recent Patents in Signal Processing - February 2011

US 7,873,427, "Audio feedback test", by P. Rhea, filed 21 September 2009, issued 18 January 2011, assigned to American Megatrends, Inc. (Norcross, GA).

US 7,873,425, "System and method of processing compressed audio data", by J. Alderson and W. Hong, filed 7 August 2006, issued 18 January 2011, assigned to SigmaTel, Inc. (Austin, TX).

US 7,869,892, "Audio file editing system and method", by M. Foust and F. Olcott, filed 21 August 2006, issued 11 January 2011, assigned to Audiofile Engineering. (Minneapolis, MN).

US 7,869,609, "Bounded signal mixer and method of operation", by L. Pessoa and K-C Gan, filed 22 August 2005, issued 11 January 2011, assigned to Freescale Semiconductor, Inc. (Austin, TX).

US 7,876,996, "Method and system for time-shifting video", by W. Herz, filed 15 December 2005, issued 25 January 2011, assigned to NVIDIA Corp. (Santa Clara, CA).

US 7,876,978, "Regions of interest in video frames", by A. Berger, G. Schohn and M. Wener, filed 13 October 2005, issued 25 January 2011, assigned to Penthera Technologies, Inc. (Pittsburgh, PA).

US 7,876,969, "Video decoding with reduced IDCT calculations", by S. Sun, S. Lei, filed 15 May 2008, issued 25 January 2011, assigned to Sharp Laboratories of America, Inc. (Camas, WA).

US 7,876,327, "Power savings in a computing device during video playback", by K. Sreenivas, K. Bennebroek, S. Lum, K. Bhat, S. Pescador, D. Reed, B. Simeral, E. Veeser, filed 21 December 2006, issued 25 January 2011, assigned to NVIDIA Corp. (Santa Clara, CA).

Interested in sharing a recent patent you know? Please contact Associate Editor Dr. Shantanu Rane at with the patent information related to signal processing. We are particularly interested in patents by SPS members issued within the past six months.