Patents by Inventor Gregory David Olson

Gregory David Olson 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).

  • Device and method for suppressing DSL signal echo induced by bridgetap
    Patent number: 8041011
    Abstract: A digital signal line echo reduction adaptor is configured to connect adjacent to a first end of a bridgetap line. The bridgetap line has a second end connected to a carrier communication line. The digital signal line echo reduction adaptor reduces an effect of echo from the bridgetap line on a rate of data transmission over the carrier communication line.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: October 18, 2011
    Assignee: AT&T Labs, Inc.
    Inventor: Gregory David Olson
  • Device and method for suppressing DSL signal echo induced by bridgetap
    Patent number: 7139392
    Abstract: A digital signal line transmission system with reduced echo is provided. A communication line is between a carrier and a user terminal. A bridgetap line has a first end connected to the communication line. An adaptor having a capacitance is connected to the bridgetap line. The adaptor reduces the effect of echo from the bridgetap line on a rate of data transmission to the user terminal over the communication line.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: November 21, 2006
    Assignee: SBC Technology Resources, Inc.
    Inventor: Gregory David Olson
  • Device for inducing a wink in a telephone system
    Patent number: 5953390
    Abstract: The present invention is directed to an adaptor for simulating the presence of a PBX device in a telephone network. The adaptor connects to an external line from the central office, and a test set. When the central office seizes the line, the adaptor responds by inducing a wink. The central office, believing that it has received an authentic PBX response, sends data to the PBX site responsive to the wink. The adaptor relays these signals to the external test set for analysis.
    Type: Grant
    Filed: March 31, 1997
    Date of Patent: September 14, 1999
    Assignee: Southwestern Bell Telephone Company
    Inventor: Gregory David Olson
  • Device for measuring echo return loss in a two-two wire line system
    Patent number: 5943392
    Abstract: The present invention is directed to an adaptor for measuring an echo return loss in a communication system. The adaptor includes two transformers, each having a primary winding and two secondary windings. The secondary windings are cross-connected to form first and second out of phase circuits. The first circuit includes impedance elements which match an impedance of an external device. When the external device is attached to the second circuit, the first and second circuits are schematically equivalent, albeit out of phase. When an oscillation signal is input to one transformer, the matched impedance and out-of-phase connection of the secondary windings cancel the signal such that only an echo signal is output by the other transformer.
    Type: Grant
    Filed: January 24, 1997
    Date of Patent: August 24, 1999
    Assignee: Southwestern Bell Telephone Company
    Inventor: Gregory David Olson