Patents by Inventor Andrew Havery Barr

Andrew Havery Barr 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).

  • Apparatus for controlling transmissions to reduce electromagnetic interference in an electronic system
    Publication number: 20040066095
    Abstract: An apparatus for reducing electromagnetic interference in an electronic system, comprises a switch coupled to a conductive line, and a system management device that can be coupled to the electronic system. The system management device detects whether a device is connected in a particular location in the system, and opens the switch to disable data transmission a long the conductive line to the particular location when the device is not connected. Noise signals are thus prevented from being propagated on transmission lines that are not terminated, and EMI that can be generated by signal reflections on the unterminated conductive line is substantially reduced, if not eliminated.
    Type: Application
    Filed: October 2, 2002
    Publication date: April 8, 2004
    Applicant: Hewlett-Packard Company
    Inventors: Andrew Michael Cherniski, Ricardo Espinoza-Ibarra, Andrew Havery Barr