Patents by Inventor Donovan S. White

Donovan S. White 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).

  • Cable television radio frequency subscriber data transmission apparatus and RF return method
    Patent number: 5235619
    Abstract: A method of transferring a data message from a remote unit to a central location is provided. A plurality of data channels is selected for transmitting the data message from the remote unit to the central location. At least one random transmit time is generated for transmitting the data message for each of the plurality of data channels. The data message is transmitted over the plurality of data channels at the transmit times. An apparatus for transferring a data message from a remote unit to a central location is also provided.
    Type: Grant
    Filed: March 20, 1990
    Date of Patent: August 10, 1993
    Assignee: Scientific-Atlanta, Inc.
    Inventors: Robert J. Beyers, II, Charles R. Bramhall, Gregory S. Durden, Robert J. Edwards, Ray T. Haman, Jr., Douglas J. Hoder, Donald R. Huntley, John A. Kennedy, Emory L. McGinty, Jr., Jay C. McMullan, Jr., David J. Naddor, Randolph J. Schaubs, Jesse M. Still, Anthony J. Wasilewski, Lamar E. West, Jr., Donovan S. White
  • System for data channel level control
    Patent number: 5155590
    Abstract: Automatic level calibration apparatus for transmitting data from a cable television terminal to the headend of a cable television system comprises programmable transmitter apparatus of the terminal, programmable receiving apparatus at the headend and a calibration controller. Responsive to an addressed command from the headend, the programmable transmitter apparatus returns a sequence of levels at a particular calibration frequency. The programmable receiver apparatus determines an indication of the received signal strength of each of the levels of the sequence of levels. The controller determines an optimum level for transmissions from the terminal.
    Type: Grant
    Filed: March 20, 1990
    Date of Patent: October 13, 1992
    Assignee: Scientific-Atlanta, Inc.
    Inventors: Robert J. Beyers, II, Charles R. Bramhall, Gregory S. Durden, Robert J. Edwards, Ray T. Haman, Jr., Douglas J. Hoder, Donald R. Huntley, John A. Kennedy, Emory L. McGinty, Jr., Jay C. McMullan, Jr., David J. Naddor, Randolph J. Schaubs, Jesse M. Still, Anthony J. Wasilewski, Lamar E. West, Jr., Donovan S. White