Patents by Inventor Riccardo Bernardini

Riccardo Bernardini 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).

  • Methods for implementing non-uniform filters
    Patent number: 5950151
    Abstract: Non-uniform filters are designed with a method which utilizes an orthogonal subbanding technique. A tiling representation of a signal is established. The signal is localized for both time and frequency using a mixed tiling representation of the signal. A prototype is then established using the joint time frequency representation of the signal. Lastly, non-uniform filters are developed utilizing the prototype.
    Type: Grant
    Filed: February 12, 1996
    Date of Patent: September 7, 1999
    Assignee: Lucent Technologies Inc.
    Inventors: Riccardo Bernardini, Jelena Kovacevic
  • Subband coding using local bases in multiple dimensions
    Patent number: 5754794
    Abstract: A method and apparatus for encoding and decoding multi-dimensional signals is disclosed. Non-separable multi-dimensional filters are utilized. Analysis filters encode the signal by applying a windowing function and a reduction function to the multi-dimensional signal. This produces a prototype. The prototype is then replicated as many times as required by utilizing a modulation function. Synthesis filters then decode the encoded signal by utilizing the inverse of the encoding process.
    Type: Grant
    Filed: October 19, 1995
    Date of Patent: May 19, 1998
    Assignee: Lucent Technologies Inc.
    Inventors: Riccardo Bernardini, Jelena Kovacevic