Patents by Inventor Stephen M. Blust

Stephen M. Blust 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).

  • System and method for reducing data quality degradation due to encoding/decoding
    Patent number: 6718183
    Abstract: Transliteration architectures reduce the number of encoding/decoding steps required to transmit telephony data. The reduction of encoding/decoding steps improves the quality of the transmitted data due to the avoidance of the significant adverse effects on the data from encoding and decoding. The reduction is accomplished using a transliterator device or through bypassing the transliterator device. A universal vocoder is proposed that allows the vocoding element to encode or decode data according to any desired vocoder format. Network routing considerations allow optimal decisions on which vocoder formats to use. Network routing decisions can be made based on vocoder formats used.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: April 6, 2004
    Assignee: BellSouth Intellectual Property Corporation
    Inventors: Stephen M. Blust, Melvin D. Frerking
  • Radiotelephone communications system with direct access to interoffice telephone trunk circuits and interface therefor
    Patent number: 5544227
    Abstract: An interface circuit for use with a radiotelephone communications system in which the interface circuit is adapted to interface a trunk circuit serving a telephone switching system with a radiotelephone of the system using the trunk circuit supervision and signaling so that the switching system and trunk circuit have direct access to the radiotelephone system.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: August 6, 1996
    Assignee: BellSouth Corporation
    Inventors: Stephen M. Blust, Edward I. Comer, Jere T. Sandidge