Patents by Inventor Charles H. Haubrich

Charles H. Haubrich 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: 5054070
    Abstract: A system which enables transmission of a standard composite stereo sound signal, made up of baseband, subcarrier band and pilot signals, from a first location to a second location while requiring only a relatively low bit rate for the transmission link. The standard composite stereo signal is synchronously sampled at a first location at rate F.sub.s twice the subcarrier frequency F.sub.c (four times the pilot frequency F.sub.p), and the sampled signal transmitted over the link along with appropriate synchronizing signals. At the second location, a signal processor separates the received signal into a first signal related to one stereo channel signal (e.g. R) and a second signal representative of the other stereo channel (e.g. L), determines the proper scale for the pilot signal, and regenerates the original standard composite stereo sound signal by combining the L-related and R-related signals with the pilot scale signals in appropriate proportions and with appropriate filtering.
    Type: Grant
    Filed: March 5, 1990
    Date of Patent: October 1, 1991
    Assignee: QEI Corporation
    Inventors: Eric A. Eckstein, Charles H. Haubrich