Patents by Inventor Joe D. Stoddard

Joe D. Stoddard 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).

  • Single to differential interfacing
    Patent number: 6992541
    Abstract: An efficient solution to transform an output from a single ended source to a pair of differential signals that are provided to a differential receiver. The differential receiver is any number of devices including a differential clock receiver. The differential signals may be referenced to voltages used to receiver power supply voltages. The present invention obviates the need for an additional differential driver and its required additional devices that are needed to perform transformation of a single ended signal to a pair of differential signals. In one embodiment, two independent power and ground planes are communicatively coupled via a transmission line, or transmission line-like traces on a printed circuit board, and are used to provide uniform impedance control for all return paths within a system.
    Type: Grant
    Filed: August 29, 2002
    Date of Patent: January 31, 2006
    Assignee: Hewlett-Packard Development Company
    Inventors: Mitchel E. Wright, Joe D. Stoddard
  • Single to differential interfacing
    Publication number: 20030001687
    Abstract: An efficient solution to transform an output from a single ended source to a pair of differential signals that are provided to a differential receiver. The differential receiver is any number of devices including a differential clock receiver. The differential signals may be referenced to voltages used to receiver power supply voltages. The present invention obviates the need for an additional differential driver and its required additional devices that are needed to perform transformation of a single ended signal to a pair of differential signals. In one embodiment, two independent power and ground planes are communicatively coupled via a transmission line, or transmission line-like traces on a printed circuit board, and are used to provide uniform impedance control for all return paths within a system.
    Type: Application
    Filed: August 29, 2002
    Publication date: January 2, 2003
    Applicant: Compaq Computer Corporation
    Inventors: Mitchel E. Wright, Joe D. Stoddard
  • Single to differential logic level interface for computer systems
    Patent number: 6492881
    Abstract: Single to differential interfacing. The present invention provides for an efficient solution to transform an output from a single ended source to a pair of differential signals that are provided to a differential receiver. The differential receiver is any number of devices including a differential clock receiver. The differential signals may be referenced to voltages used to receiver power supply voltages. The present invention obviates the need for an additional differential driver and its required additional devices that are need to perform transformation of a single ended signal to a pair of differential signals. There can be significant cost savings in using the single to differential interfacing that is performed in accordance with the present invention.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: December 10, 2002
    Assignee: Compaq Information Technologies Group, L.P.
    Inventors: Mitchel E. Wright, Joe D. Stoddard
  • Single to differential logic level interface for computer systems
    Publication number: 20020101294
    Abstract: Single to differential interfacing. The present invention provides for an efficient solution to transform an output from a single ended source to a pair of differential signals that are provided to a differential receiver. The differential receiver is any number of devices including a differential clock receiver. The differential signals may be referenced to voltages used to receiver power supply voltages. The present invention obviates the need for an additional differential driver and its required additional devices that are need to perform transformation of a single ended signal to a pair of differential signals. There can be significant cost savings in using the single to differential interfacing that is performed in accordance with the present invention.
    Type: Application
    Filed: January 31, 2001
    Publication date: August 1, 2002
    Inventors: Mitchel E. Wright, Joe D. Stoddard