Patents by Inventor Ivor Francis Feast

Ivor Francis Feast 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).

  • Current direction detection
    Patent number: 7085114
    Abstract: An electrical circuit is provided for detecting direction of a current flowing on a line, in particular of a bus of a test equipment. The circuit comprises a sense resistor coupled within the line. A first comparator is connected with its positive input to the line on one of the two sides of the sense resistor and with its negative input connected to the line on the other one of the two sides of the sense resistor. A second comparator with one of its inputs is connected to the line on one of the two sides of the sense resistor and with the other one of its inputs is provided with a voltage divider. Said first comparator provides an output signal depending on the direction of the current flowing on the line, and said second comparator provides a second output signal defining whether the first output signal is valid or not.
    Type: Grant
    Filed: May 27, 2003
    Date of Patent: August 1, 2006
    Assignee: Agilent Technologies, Inc.
    Inventor: Ivor Francis Feast
  • Current direction detection
    Publication number: 20040080887
    Abstract: An electrical circuit is provided for detecting direction of a current flowing on a line, in particular of a bus of a test equipment. The circuit comprises a sense resistor coupled within the line. A first comparator is connected with its positive input to the line on one of the two sides of the sense resistor and with its negative input connected to the line on the other one of the two sides of the sense resistor. A second comparator with one of its inputs is connected to the line on one of the two sides of the sense resistor and with the other one of its inputs is provided with a voltage divider. Said first comparator provides an output signal depending on the direction of the current flowing on the line, and said second comparator provides a second output signal defining whether the first output signal is valid or not.
    Type: Application
    Filed: May 27, 2003
    Publication date: April 29, 2004
    Applicant: Agilent Technologies, Inc.
    Inventor: Ivor Francis Feast