Patents by Inventor Elaine C. Grosso

Elaine C. Grosso 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).

  • Compression and expansion of digitized voice signals
    Patent number: 4631746
    Abstract: Speech signal data compression is improved by a first compression using Time Domain Harmonic Scaling (TDHS), wherein two periods of voiced data are averaged together, followed by a second compression using Continuously Variable Slope Delta Modulation (CVSD). Pitch period detection and sampling-rate conversion are also features of the invention.
    Type: Grant
    Filed: February 14, 1983
    Date of Patent: December 23, 1986
    Assignee: Wang Laboratories, Inc.
    Inventors: Lawrence E. Bergeron, Daniel F. Daly, Elaine C. Grosso