Patents by Inventor Thomas C. Leslie

Thomas C. Leslie 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).

  • Analog to digital converters
    Patent number: 4987416
    Abstract: In order to reduce noise in single or multiloop analog to digital converter circuits employing n-bit quantisers (n>1), only the MSB of the quantiser output is fed back in a feedback loop in reduce problems of overload in a feed-forward (integrator filter). The feedback MSB may be subtracted as an offset from the input analog signal or used to control the sign of inversion of a signal inverter.
    Type: Grant
    Filed: August 8, 1989
    Date of Patent: January 22, 1991
    Assignee: Plessey Overseas Limited
    Inventor: Thomas C. Leslie