Patent Expert in Petition for Inter Partes Review

Client was a major consumer electronics provider. Client petitioned for Inter Partes Review of patent asserted against client products and services. I wrote six expert reports and gave two depositions on the reports. The two patents in review concerned a method for content delivery, e.g. audio, from a network server to a portable electronic device via a wireless link. The portable electronic device can be located in an automobile and associated with the automobile sound system. Patent Review Board found all challenged claims of the patents invalid

Patent Expert in Petition for Inter Partes Review

Client was a major consumer electronics provider. Client petitioned for Inter Partes Review of patent asserted against client products and services. I wrote five expert reports supporting client petition and gave two depositions on the reports. Patent involved a method for content delivery from a network server to a portable electronic device via a wireless link and from the portable electronic device to a second device via a second wireless link. The second device may be an automobile sound system. The Patent Review Board found all challenged claims of patent invalid.

Subjective Audio Quality Test — MPEG USAC

In the first part of 2011 I designed and supervised a subjective audio quality test of the Baseline Profile of MPEG-D Unified Speech and Audio Coding. The tests included speech, music and speech mixed with music, and covered a large range of bit rates from 8 to 96 kbps as well as both mono and stereo operating points. Depending on the listening test, 6 to 13 test sites participated with a commitment to use at least 8 listeners per test. This resulted in a large data set of more than 38000 individual scores. The report, N12232 Unified Speech and Audio Coding Verification Test Report, is available at http://mpeg.chiariglione.org/standards/mpeg-d/unified-speech-and-audio-coding.

Subjective Audio Quality Test — MPEG SAOC

In mid 2010 I designed and supervised a subjective audio quality test of the MPEG-D Spatial Audio Object Coding technology. This technology permits multiple audio “objects” which are each in a separate audio input channel to be mixed together into one or two channels, compressed using MPEG AAC, and then decoded to recover the separate audio object channels.

The report, N11657 Report on Spatial Audio Object Coding Verification Tests, is available at http://mpeg.chiariglione.org/standards/mpeg-d/spatial-audio-object-coding.

Subjective Audio Quality Test — MPEG AAC-ELD

In 2008 I designed and supervised a subjective audio quality test of the MPEG-4 Advanced Audio Coding, Low Delay (AAC-LD) technology. This technology has performance similar to MPEG-4 AAC, but with one-way latency as low as 10 ms. The report, N10032 Report on MPEG-4 AAC-ELD Verification Tests, is available at http://mpeg.chiariglione.org/standards/mpeg-4/audio.

Patent Expert in asserted Patent Infringement

Client was a provider of call center voice and data logging software. I wrote two expert reports, gave two depositions on reports and testified at jury trial in Atlanta, GA. The patent in suit concerned call-center technology that can be used to identify characteristics of a caller’s signal that might be associated with caller emotional state. In the trial, the jury found for Witness Systems.

Subjective Audio Quality Test — MPEG Surround

Late in 2006 I designed and supervised a subjective audio quality test of the MPEG-D MPEG Surround technology. The technology is able to represent a 5.1 channel audio signal as a stereo signal with a bitrate of 128 kb/s to as slow as 64 kb/s, such that it can be a “drop-in” replacement to give current stereo services a 5.1 channel capability. The report, N8851 Report on MPEG Surround Verification Tests, is available at http://mpeg.chiariglione.org/standards/mpeg-d/mpeg-surround.