Patents by Inventor Jeff S. Kueng

Jeff S. Kueng 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).

  • Feedback control of clock duty cycle
    Patent number: 6411145
    Abstract: A circuit configured to correct a duty cycle error or vary the duty cycle of a clock signal. The circuit includes a differential amplifier or control circuit that receives differential signal inputs. At least one differential pair of transistors is connected to outputs of the differential amplifier or control circuit. Outputs of the one or more differential pairs of transistors are connected to inputs of a differential circuit. The differential amplifier or control circuit is connected to the outputs of the differential circuit. The one or more differential pairs of transistors is configured to change a DC level of at least one of the inputs of the differential circuit in order to shift a cross over point of the inputs of the differential circuit and thereby effect a duty cycle change (or correction) at the outputs of the differential circuit.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: June 25, 2002
    Assignee: LSI Logic Corporation
    Inventors: Jeff S. Kueng, Justin J. Kraus