Patents by Inventor Jo Smeets

Jo Smeets 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).

  • Audio signal bandwidth extension
    Publication number: 20050004803
    Abstract: Described is a transmission system comprising a transmitter for transmitting a narrowband audio signal to a receiver via a transmission channel. The receiver comprises a bandwidth extender (18) for generating a wideband audio signal from the narrowband audio signal. The bandwidth extender (18) comprises spectral folding means (30) or generating a spectrally folded audio signal (33) by spectrally folding at least part of the narrowband audio signal. The transmission system according to the invention is characterized in that the bandwidth extender (18) comprises a noise shaper (32) for generating a shaped noise signal (35) by shaping a noise signal (31) in accordance with at least part of the spectrally folded audio signal (33), and in that the bandwidth extender (18) further comprises a combiner (34) for combining the shaped noise signal (35) and the spectrally folded audio signal (33) into the wideband audio signal.
    Type: Application
    Filed: October 30, 2002
    Publication date: January 6, 2005
    Inventors: Jo Smeets, Steven Leonardus Josephus Van De Par