Patents by Inventor Daryl G. Roberts

Daryl G. Roberts 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).

  • Patent number: 6448838
    Abstract: In a switching circuit, a first electrical element (22) is disabled before a second electrical element (30) is enabled. The switching operation is called break before make and ensures that disabling operation of a first electrical element occurs before enabling operation of a second electrical element. The assurance is in the form of a disable signal being detected from a first electrical element at an input of a first detection circuit (28). Correspondingly, the detected disable signal of the first electrical element enables operation of the second electrical element. Alternatively, a detected disable from the second electrical element at the input of the second detection circuit (20) enables operation of the first electrical element.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: September 10, 2002
    Assignee: Semiconductor Components Industries LLC
    Inventors: Barry B. Heim, Daryl G. Roberts