• US 7,742,832, "Method and apparatus for wireless digital audio playback for player piano applications", by T. Feldman and D. Rice, filed 5 January 2005, issued 22 June 2010, assigned to Neosonik (San Francisco, CA).
• US 7,742,609,"Live performance audio mixing system with simplified user interface", by N. Yeakel and J. Vallier, filed 3 April 2003, issued 22 June 2010, assigned to Gibson Guitar Corp. (Nashville, TN).
• US 7,734,364, "Mixing media files", by D. Wesemann and J. Hays, filed 29 June 2006, issued 8 June 2010, assigned to LOLO, LLC (Salt Lake City, UT).
• US 7,734,363, "Technique for independent ground fault detection of multiple twisted pair telephone lines connected to a common electrical power source", by S. Smith and S. Robinson, filed 22 February 2006, issued 8 June 2006, assigned to Adtran, Inc. (Huntsville, AL).
• US 7,729,791, "Portable media playback device including user interface event passthrough to non-media-playback processing", by J. Boettcher, filed 11 September 2006, issued 1 June 2010, assigned to Apple Inc. (Cupertino, CA).
• US 7,729,790, "Phase alignment of audio output data in a multi-channel configuration", by L. Hand, J. Andersen, D. Chieng, M. Cost and W. Taylor, filed 19 March 2004, issued 1 June 2010, assigned to D2Audio Corporation (Milpitas, CA) .
• US 7,725,298,"Event tracing with time stamp compression", by F. Levine, M. Milenkovic and R. Urquhart, filed 13 December 2007, issued 25 May 2010, assigned to International Business Machines Corporation (Armonk, NY).
• US 7,725,202, "Audio splice process for digital Ad insertion", by J. Chen and R. Nemiroff, filed 23 December 2003, issued 25 May 2010, assigned to General Instrument Corporation (Horsham, PA).

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