Patents by Inventor Philip J. E. Campbell

Philip J. E. Campbell has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Real-time monitoring system for codec-effect sampling during digital processing of a sound source
    Patent number: 6839675
    Abstract: A digital processing system for monitoring sound effects produced by codecs during a signal processing session is provided. The digital processing system comprises, a sound source for producing signals for processing, a sound monitor having at least two channels for monitoring sound quality of the sound source, a sound recorder for recording the sound source, a playback device for playing a recorded file of sound produced by the sound source, a codec simulator for simulating sound effects produced by codecs, a plurality of codecs for compressing and decompressing sound files and a control interface for sampling, adjusting, and implementing an optimum codec based on monitoring of sound effects produced by codec simulation. A user controlling the system may monitor sound variances produced by any one of the plurality of codecs affecting the quality of sound from the sound source during signal processing of the source sound without interruption of the signal-processing session.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: January 4, 2005
    Assignee: Euphonix, Inc.
    Inventors: Robert Denton Silfvast, Philip J. E. Campbell, Scott Silfvast, Andor Izsak, Paul deBenedictis, Steven H. Milne