Patents by Inventor Manfred Robert Schroeder

Manfred Robert Schroeder 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).

  • Processing of two noise contaminated, substantially identical signals to improve signal-to-noise ratio
    Patent number: 4008439
    Abstract: When two substantially identical signals contaminated by uncorrelated noise are received over two channels, combining of the contaminated signals in a linear manner results in a maximum signal-to-noise ratio improvement of 3 dB. The present disclosure relates to combining such contaminated signals through a process whose parameters vary as short time functions of the signal and noise powers in each channel. This processing produces a signal-to-noise ratio improvement which is greater than that achievable through linear processing.
    Type: Grant
    Filed: February 20, 1976
    Date of Patent: February 15, 1977
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventor: Manfred Robert Schroeder