Patents by Inventor Jack L. Dicks

Jack L. Dicks 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).

  • Equalizer for reducing crosstalk between two FDM/FM carriers in a satellite communications system
    Patent number: 4500984
    Abstract: A transmitting earth station for a satellite communications system in which the channel capacity of a two-carrier-per-transponder transmitter is greatly enhanced. The transmitting station is provided with an equalizer at the input to the high power amplifier (HPA). The transfer function of this equalizer assists in the reduction (in the first order approximation) of the intelligible crosstalk due to the non-linearities of the HPA, the travelling wave tube amplifier (TWTA) and the input transponder multiplexer. With the intelligible crosstalk reduced, the input backoff of the transponder TWTA may be reduced from -12dB to -6dB, which increases the channel capacity in the order of 500 channels.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: February 19, 1985
    Assignee: International Telecommunications Satellite Organization
    Inventors: Osamu Shimbo, Lan N. Nguyen, Jack L. Dicks