Patents by Inventor Geoffrey P. Watts

Geoffrey P. Watts 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).

  • Bargraph display
    Patent number: 4385260
    Abstract: Bargraph displays wherein the illuminable bar segments are formed by winding filamentary conductors upon a mandrel.
    Type: Grant
    Filed: September 9, 1975
    Date of Patent: May 24, 1983
    Assignee: Beckman Instruments, Inc.
    Inventor: Geoffrey P. Watts
  • Precision self-adjusting slope circuit
    Patent number: 4225825
    Abstract: An improved ramp generating circuit which is self-compensating for changes in component performance is disclosed. The circuit is designed to attain a reference voltage in a fixed number of counts as provided by a precision clock source. A single direction compensation feedback network is employed to increase the slope in increments until the desired peak level and clock count are attained simultaneously. Embodiments are shown wherein the circuit is employed in a gas discharge bar graph display driving circuit and as an analog-to-digital converter.
    Type: Grant
    Filed: September 25, 1978
    Date of Patent: September 30, 1980
    Assignee: Beckman Instruments, Inc.
    Inventor: Geoffrey P. Watts