Patents by Inventor Peter S Poon

Peter S Poon 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).

  • Patent number: 6615171
    Abstract: A portable speech signal preprocessing (SSP) device having a microphone for receiving spoken speech and background noise, a digital signal processor (DSP) for processing the received noise into feature vectors, a coupler for coupling to a communication device and for transmission over a communication channel. An automatic speech/speaker recognition (ASSR) server receives over the communication channel the preprocessed speech data and recognizes the spoken speech/speaker. A system having the portable SSP device and the ASSR server can be used to remotely activate, reset, or change PIN codes in smartcards, magnetic cards, or electronic money cards.
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: September 2, 2003
    Assignee: International Business Machines Corporation
    Inventors: Dimitri Kanevsky, Stephane Herman Maes, Peter S Poon, Carl Prochilo