Patents by Inventor James E. Holbrook

James E. Holbrook 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).

  • Termination for a line card in a telecommunication system
    Patent number: 8238544
    Abstract: A system of terminating signals in a telecommunication system is disclosed. In one embodiment a line card comprises functional circuitry, line card connector contacts and a termination resistor. The functional circuitry is used to interface first type ports with second type ports. The line card connector contacts are adapted to be selectively coupled to a backplane of a chassis. The termination resistor is adapted to terminate signal lines when a jumper is coupled across select line card contacts.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: August 7, 2012
    Assignee: ADC DSL Systems, Inc.
    Inventors: Carl E. Gabrielson, Jr., James E. Holbrook, Dale M. Terrien, Gary Gottlieb
  • Termination for a line card in a telecommunication system
    Patent number: 7330543
    Abstract: A system of terminating signals in a telecommunication system is disclosed. In one embodiment a line card comprises functional circuitry, line card connector contacts and a termination resistor. The functional circuitry is used to interface first type ports with second type ports. The line card connector contacts are adapted to be selectively coupled to a backplane of a chassis. The termination resistor is adapted to terminate signal lines when a jumper is coupled across select line card contacts.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: February 12, 2008
    Assignee: ADC DSL Systems, Inc.
    Inventors: Carl E. Gabrielson, Jr., James E. Holbrook, Dale M. Terrien, Gary Gottlieb
  • Termination for a line card in a telecommunication system
    Publication number: 20040145847
    Abstract: A system of terminating signals in a telecommunication system is disclosed. In one embodiment a line card comprises functional circuitry, line card connector contacts and a termination resistor. The functional circuitry is used to interface first type ports with second type ports. The line card connector contacts are adapted to be selectively coupled to a backplane of a chassis. The termination resistor is adapted to terminate signal lines when a jumper is coupled across select line card contacts.
    Type: Application
    Filed: January 24, 2003
    Publication date: July 29, 2004
    Applicant: ADC DSL Systems, Inc.
    Inventors: Carl E. Gabrielson, James E. Holbrook, Dale M. Terrien, Gary Gottlieb