Patents by Inventor Michael Stamps

Michael Stamps 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).

  • Multiplexing a ground signal on a high speed cable interface to provide access to cable vital product data
    Patent number: 7624203
    Abstract: Because cable length affects signal quality, amplifying signals differently to account for cable length (“tuning”) becomes especially important when high speed signals are used. Cable length information may be stored in a non-volatile memory which may be integrated into a cable assembly or may be a discrete component between the cable and an interface. Rather than using a dedicated data line to the memory component a ground line may be connected to the memory component and multiplexed. During normal operation the selected line is grounded through a switching device. When a cable is detected, a management controller changes the state of the switching device to decouple the selected line from ground to allow the management controller access to the data stored in the memory component, including cable length information. The selected line is then re-coupled to ground and interface circuits may be tuned for the cable length.
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: November 24, 2009
    Assignee: International Business Machines Corporation
    Inventors: Katherine T Blinick, Yutaka Kawai, Gregg S Lucas, Robert E Medlin, Kenneth R Schneebeli, Michael Stamps
  • Multiplexing a Ground Signal on a High Speed Cable Interface to Provide Access to Cable Vital Product Data
    Publication number: 20070260788
    Abstract: Because cable length affects signal quality, amplifying signals differently to account for cable length (“tuning”) becomes especially important when high speed signals are used. Cable length information may be stored in a non-volatile memory which may be integrated into a cable assembly or may be a discrete component between the cable and an interface. Rather than using a dedicated data line to the memory component a ground line may be connected to the memory component and multiplexed. During normal operation the selected line is grounded through a switching device. When a cable is detected, a management controller changes the state of the switching device to decouple the selected line from ground to allow the management controller access to the data stored in the memory component, including cable length information. The selected line is then re-coupled to ground and interface circuits may be tuned for the cable length.
    Type: Application
    Filed: May 4, 2006
    Publication date: November 8, 2007
    Applicant: International Business Machines Corporation
    Inventors: Katherine Blinick, Yutaka Kawai, Gregg Lucas, Robert Medlin, Kenneth Schneebeli, Michael Stamps