Patents by Inventor Brian B. English

Brian B. English 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).

  • Control system for positioning a marker on a cathode-ray tube display
    Patent number: 4500876
    Abstract: A control system for positioning a marker on a cathode-ray tube display (18) includes position registers (16) operable to store the position of the marker on the screen. Input means (11) generate signals which represent desired changes in the position of the marker. Comparison means (15) response to these signals to produce an output pulse corresponding to each increment of change in the position of the marker. Control means (14) control the operation of the comparison means. Frequency-sensitive means (17) are provided to control the rate at which pulses are applied to the position registers (16).
    Type: Grant
    Filed: March 18, 1982
    Date of Patent: February 19, 1985
    Assignee: Ferranti plc
    Inventors: Brian B. English, Hamish W. M. Gray