Patents by Inventor Jose M. N. S. Tribolet

Jose M. N. S. Tribolet 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).

  • Transform speech signal coding with pitch controlled adaptive quantizing
    Patent number: 4184049
    Abstract: To improve the speech quality at lower bit rates within a digital communication system in which the coefficients of a frequency transform (e.g. discrete cosine transform) are adaptively encoded with adaptive quantization and adaptive bit-assignment, the adaptation is controlled by a short-term spectral estimate signal formed by combining the formant spectrum and the pitch excitation spectrum of the coefficient signals.
    Type: Grant
    Filed: August 25, 1978
    Date of Patent: January 15, 1980
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: Ronald E. Crochiere, Jose M. N. S. Tribolet