Patents by Inventor Christopher Keith White

Christopher Keith White 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).

  • Detection of data transmission rates using passing frequency-selective filtering
    Patent number: 7062164
    Abstract: A data receiver, which could be an optical transceiver, a modem, a router hub, is capable of detecting the transmission rate of incoming data. The data is converted to electrical waves appropriate for passive or active bandpass filtering. The frequencies at which the waves are filtered are determined from a plurality of known possible transmission rates and are chosen as having the most detectable difference in the power spectra. By implementing a filter at the corresponding frequency(ies), data having that (those) frequency(ies) will be transmitted. A signal detector then can receive a signal transmitted through the filter and determine the corresponding data rate. It is further contemplated that the multiple frequencies can be filtered by using stages of filters and signal detectors for different frequencies or by filters and detectors capable of multiple frequency operation.
    Type: Grant
    Filed: June 27, 2001
    Date of Patent: June 13, 2006
    Assignee: International Business Machines Corporation
    Inventors: Stephen John Ames, Roy Kearns Ball, Clint Lee Schow, Christopher Keith White
  • Detection of data transmission rates using passing frequency-selective filtering
    Publication number: 20030002108
    Abstract: A data receiver, which could be an optical transceiver, a modem, a router hub, is capable of detecting the transmission rate of incoming data. The data is converted to electrical waves appropriate for passive or active bandpass filtering. The frequencies at which the waves are filtered are determined from a plurality of known possible transmission rates and are chosen as having the most detectable difference in the power spectra. By implementing a filter at the corresponding frequency(ies), data having that (those) frequency(ies) will be transmitted. A signal detector then can receive a signal transmitted through the filter and determine the corresponding data rate. It is further contemplated that the multiple frequencies can be filtered by using stages of filters and signal detectors for different frequencies or by filters and detectors capable of multiple frequency operation.
    Type: Application
    Filed: June 27, 2001
    Publication date: January 2, 2003
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Stephen John Ames, Roy Kearns Ball, Clint Lee Schow, Christopher Keith White