Patents by Inventor Michael Perelshteyn

Michael Perelshteyn 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).

  • Apparatus and methods for including codes in audio signals
    Publication number: 20060222179
    Abstract: Apparatus and methods for including a code having at least one code frequency component in an audio signal are provided. The abilities of various frequency components in the audio signal to mask the code frequency component to human hearing are evaluated and based on these evaluations an amplitude is assigned to the code frequency component. Methods and apparatus for detecting a code in an encoded audio signal are also provided. A code frequency component in the encoded audio signal is detected based on an expected code amplitude or on a noise amplitude within a range of audio frequencies including the frequency of the code component.
    Type: Application
    Filed: November 4, 2005
    Publication date: October 5, 2006
    Inventors: James Jensen, Wendell Lynch, Michael Perelshteyn, Robert Graybill, Sayed Hassan, Wayne Sabin