Patents by Inventor Jari Ranta

Jari Ranta 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).

  • Distributed database for one search key
    Publication number: 20050097105
    Abstract: Method and arrangement for storing information in data network into a network element in accordance with a hash value of the search key; and a method adding a new element using overlapping hash values for the primary and secondary element to keep the service available during the element adding process and in case of hardware failure.
    Type: Application
    Filed: February 6, 2002
    Publication date: May 5, 2005
    Inventor: Jari Ranta
  • Speech recognition based on HMMs
    Patent number: 5943647
    Abstract: A speech recognition method that combines HMMs and vector quantization to model the speech signal and adds spectral derivative information in the speech parameters. Each state of a HMM is modeled by two different VQ-codebooks. One is trained by using the spectral parameters and the second is trained by using the spectral derivative parameters.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: August 24, 1999
    Assignee: Tecnomen Oy
    Inventor: Jari Ranta