Patents by Inventor Motomichi Tanaka

Motomichi Tanaka 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).

  • Pre-detection maximal ratio combining system for diversity reception of radio frequency signals
    Patent number: 4334316
    Abstract: A pre-detection maximal ratio combining system for a plurality of received signals is provided in which a plurality of control devices are arranged for controlling the phase and amplitude of each of a number of pre-detection signals corresponding to the received signals. The control devices operate by correlating the mutually orthogonal components of the pre-detection signals with a reference comparison signal, which is derived by combining the outputs of the several control devices into a combined signal, and normalizing the amplitude thereof.
    Type: Grant
    Filed: October 28, 1980
    Date of Patent: June 8, 1982
    Assignee: Nippon Electric Co., Ltd.
    Inventor: Motomichi Tanaka