Patents by Inventor Geoff Nightingale

Geoff Nightingale 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).

  • Downhole telemetry system having discrete multi-tone modulation and dynamic bandwidth allocation
    Patent number: 6657551
    Abstract: A downhole telemetry system having discrete multi-tone modulation and dynamic bandwidth allocation is disclosed herein. In one embodiment, the downhole telemetry system comprises a surface transceiver, a cable, and a downhole transceiver coupled to the surface transceiver via the cable. The downhole transceiver communicates to the surface transceiver using discrete multi-tone (DMT) modulation to transmit telemetry information over a set of frequency subchannels allocated for uplink communications. The surface transceiver may likewise communicate to the downhole transceiver using DMT modulation to transmit information over a set of frequency subchannels allocated for downlink communications. The number of uplink and downlink communications subchannels is preferably variable and preferably can be changed depending on the operating mode of the system.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: December 2, 2003
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Bruce S. Huckaba, Geoff Nightingale, Carl Dodge, Wallace R. Gardner, Myrick Monroe
  • Downhole telemetry system having discrete multi-tone modulation and dynamic bandwidth allocation
    Publication number: 20020101359
    Abstract: A downhole telemetry system having discrete multi-tone modulation and dynamic bandwidth allocation is disclosed herein. In one embodiment, the downhole telemetry system comprises a surface transceiver, a cable, and a downhole transceiver coupled to the surface transceiver via the cable. The downhole transceiver communicates to the surface transceiver using discrete multi-tone (DMT) modulation to transmit telemetry information over a set of frequency subchannels allocated for uplink communications. The surface transceiver may likewise communicate to the downhole transceiver using DMT modulation to transmit information over a set of frequency subchannels allocated for downlink communications. The number of uplink and downlink communications subchannels is preferably variable and preferably can be changed depending on the operating mode of the system.
    Type: Application
    Filed: February 1, 2001
    Publication date: August 1, 2002
    Inventors: Bruce S. Huckaba, Geoff Nightingale, Carl Dodge, Wallace R. Gardner, Myrick Monroe