Patents by Inventor Eamonn P. Glennon

Eamonn P. Glennon 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).

  • Patent number: 8816905
    Abstract: A method, device and system for determining a receiver location using weak signal satellite transmissions. The invention involves a sequence of exchanges between an aiding source and a receiver that serve to provide aiding information to the receiver so that the receiver's location may be determined in the presence of weak satellite transmissions. With the aiding information, the novel receiver detects, acquires and tracks weak satellite signals and computes position solutions from calculated pseudo ranges despite the inability to extract time synchronization date from the weak satellite signals. The invention includes as features, methods and apparatus for the calibration of a local oscillator, the cancellation of cross correlations, a Doppler location scheme, an ensemble averaging scheme, the calculation of almanac aiding from a table of orbit coefficients, absolute time determination, and a modified search engine.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: August 26, 2014
    Assignee: u-blox AG
    Inventors: Roderick C. Bryant, Andrew G. Dempster, Stanley L. Dougan, Trevor Hobbs, Eamonn P. Glennon
  • Patent number: 8542714
    Abstract: This invention provides methods for a GPS device to resolve timing errors as applicable to a AGPS navigation solution, and, in particular, to solutions involving GNSS positioning and timing with limited assistance such as indoors or in a heavily obscured location, where the time of transmit of satellite signals is not directly extractable from the navigation message data. In particular the invention concerns the reconstruction of time-of-transmit from the course acquisition code of weak signals or where assisted-GNSS are employed.
    Type: Grant
    Filed: November 5, 2007
    Date of Patent: September 24, 2013
    Assignee: u-blox AG
    Inventors: Roderick Bryant, Eamonn P. Glennon, Ian Anthony Sainsbery, John Kenmure Gordon
  • Publication number: 20120249367
    Abstract: A method, device and system for determining a receiver location using weak signal satellite transmissions. The invention involves a sequence of exchanges between an aiding source and a receiver that serve to provide aiding information to the receiver so that the receiver's location may be determined in the presence of weak satellite transmissions. With the aiding information, the novel receiver detects, acquires and tracks weak satellite signals and computes position solutions from calculated pseudo ranges despite the inability to extract time synchronization date from the weak satellite signals. The invention includes as features, methods and apparatus for the calibration of a local oscillator, the cancellation of cross correlations, a Doppler location scheme, an ensemble averaging scheme, the calculation of almanac aiding from a table of orbit coefficients, absolute time determination, and a modified search engine.
    Type: Application
    Filed: February 24, 2012
    Publication date: October 4, 2012
    Inventors: Roderick C. BRYANT, Andrew G. DEMPSTER, Stanley L. DOUGAN, Trevor HOBBS, Eamonn P. GLENNON
  • Patent number: 8125381
    Abstract: A method, device and system for determining a receiver location using weak signal satellite transmissions. The invention involves a sequence of exchanges between an aiding source and a receiver that serve to provide aiding information to the receiver so that the receiver's location may be determined in the presence of weak satellite transmissions. With the aiding information, the novel receiver detects, acquires and tracks weak satellite signals and computes position solutions from calculated pseudo ranges despite the inability to extract time synchronization date f, 'n the weak satellite signals. The invention includes as features, methods and apparatus for the calibration of a local oscillator, the cancellation of cross correlations, a Doppler location scheme, an ensemble averaging scheme, the calculation of almanac aiding from a table of orbit coefficients, absolute time determination, and a modified search engine.
    Type: Grant
    Filed: March 8, 2008
    Date of Patent: February 28, 2012
    Assignee: U-Blox AG
    Inventors: Roderick C. Bryant, Andrew G. Dempster, Stanley L. Dougan, Trevor Hobbs, Eamonn P. Glennon
  • Publication number: 20110103337
    Abstract: A method is disclosed for providing syntonisation, synchronization, position or some combination to a wireless base station, micro-cell, pico-cell, femto-cell or access point, by providing holdover backup in a GPS clock module via at least one interface between the GPS clock module and an external time or frequency reference. Switching between synchronization modes is designed to occur on the control side of the oscillator portion of the module rather than at the output of two oscillators. A corresponding GPS clock module apparatus is disclosed for providing holdover backup via at least one interface between the GPS clock module and external time or frequency references.
    Type: Application
    Filed: May 1, 2009
    Publication date: May 5, 2011
    Inventors: Roderick Bryant, Eamonn P. Glennon
  • Publication number: 20090128403
    Abstract: A method, device and system for determining a receiver location using weak signal satellite transmissions. The invention involves a sequence of exchanges between an aiding source and a receiver that serve to provide aiding information to the receiver so that the receiver's location may be determined in the presence of weak satellite transmissions. With the aiding information, the novel receiver detects, acquires and tracks weak satellite signals and computes position solutions from calculated pseudo ranges despite the inability to extract time synchronization date f, 'n the weak satellite signals. The invention includes as features, methods and apparatus for the calibration of a local oscillator, the cancellation of cross correlations, a Doppler location scheme, an ensemble averaging scheme, the calculation of almanac aiding from a table of orbit coefficients, absolute time determination, and a modified search engine.
    Type: Application
    Filed: March 8, 2008
    Publication date: May 21, 2009
    Inventors: Roderick C. Bryant, Andrew G. Dempster, Stanley L. Dougan, Trevor Hobbs, Eamonn P. Glennon
  • Publication number: 20090109088
    Abstract: A method, device and system for determining a receiver location using weak signal satellite transmissions. The invention involves a sequence of exchanges between an aiding source and a receiver that serve to provide aiding information to the receiver so that the receiver's location may be determined in the presence of weak satellite transmissions. With the aiding information, the novel receiver detects, acquires and tracks weak satellite signals and computes position solutions from calculated pseudo ranges despite the inability to extract time synchronization date f, 'n the weak satellite signals. The invention includes as features, methods and apparatus for the calibration of a local oscillator, the cancellation of cross correlations, a Doppler location scheme, an ensemble averaging scheme, the calculation of almanac aiding from a table of orbit coefficients, absolute time determination, and a modified search engine.
    Type: Application
    Filed: March 7, 2008
    Publication date: April 30, 2009
    Inventors: Roderick C. Bryant, Andrew G. Dempster, Stanley L. Dougan, Trevor Hobbs, Eamonn P. Glennon
  • Publication number: 20090102709
    Abstract: A method, device and system for determining a receiver location using weak signal satellite transmissions. The invention involves a sequence of exchanges between an aiding source and a receiver that serve to provide aiding information to the receiver so that the receiver's location may be determined in the presence of weak satellite transmissions. With the aiding information, the novel receiver detects, acquires and tracks weak satellite signals and computes position solutions from calculated pseudo ranges despite the inability to extract time synchronization date f, 'n the weak satellite signals. The invention includes as features, methods and apparatus for the calibration of a local oscillator, the cancellation of cross correlations, a Doppler location scheme, an ensemble averaging scheme, the calculation of almanac aiding from a table of orbit coefficients, absolute time determination, and a modified search engine.
    Type: Application
    Filed: March 8, 2008
    Publication date: April 23, 2009
    Inventors: Roderick C. BRYANT, Andrew G. Dempster, Stanley L. Dougan, Trevor Hobbs, Eamonn P. Glennon
  • Patent number: 7463189
    Abstract: A method, device and system for determining a receiver location using weak signal satellite transmissions. The invention involves a sequence of exchanges between an aiding source and a receiver that serve to provide aiding information to the receiver so that the receiver's location may be determined in the presence of weak satellite transmissions. With the aiding information, the novel receiver detects, acquires and tracks weak satellite signals and computes position solutions from calculated pseudo ranges despite the inability to extract time synchronization date f, 'n the weak satellite signals. The invention includes as features, methods and apparatus for the calibration of a local oscillator, the cancellation of cross correlations, a Doppler location scheme, an ensemble averaging scheme, the calculation of almanac aiding from a table of orbit coefficients, absolute time determination, and a modified search engine.
    Type: Grant
    Filed: October 4, 2003
    Date of Patent: December 9, 2008
    Assignee: SigNav Pty Ltd.
    Inventors: Roderick C. Bryant, Andrew G. Dempster, Stanley L. Dougan, Trevor Hobbs, Eamonn P. Glennon
  • Publication number: 20080180318
    Abstract: The invention provides a GPS device that resolves timing errors as applicable to an AGPS navigation solution. A single state algorithm provides rapid convergence, typical with standard Newton-Raphson performance. Problems due to ill-conditioning of the input matrix are identified by an augmented DOP calculation procedure, which may be used to identify unreliable results or to estimate the errors for those results.
    Type: Application
    Filed: June 27, 2007
    Publication date: July 31, 2008
    Inventors: Eamonn P. GLENNON, Roderick Bryant, Ian Anthony Sainsbery, John Kenmure Gordon
  • Publication number: 20080174481
    Abstract: A method, device and system for determining a receiver location using weak signal satellite transmissions. The invention involves a sequence of exchanges between an aiding source and a receiver that serve to provide aiding information to the receiver so that the receiver's location may be determined in the presence of weak satellite transmissions. With the aiding information, the novel receiver detects, acquires and tracks weak satellite signals and computes position solutions from calculated pseudo ranges despite the inability to extract time synchronization date f, 'n the weak satellite signals. The invention includes as features, methods and apparatus for the calibration of a local oscillator, the cancellation of cross correlations, a Doppler location scheme, an ensemble averaging scheme, the calculation of almanac aiding from a table of orbit coefficients, absolute time determination, and a modified search engine.
    Type: Application
    Filed: March 7, 2008
    Publication date: July 24, 2008
    Inventors: Roderick C. Bryant, Andrew G. Dempster, Stanley L. Dougan, Trevor Hobbs, Eamonn P. Glennon
  • Publication number: 20080174483
    Abstract: A method, device and system for determining a receiver location using weak signal satellite transmissions. The invention involves a sequence of exchanges between an aiding source and a receiver that serve to provide aiding information to the receiver so that the receiver's location may be determined in the presence of weak satellite transmissions. With the aiding information, the novel receiver detects, acquires and tracks weak satellite signals and computes position solutions from calculated pseudo ranges despite the inability to extract time synchronization date f, ?n the weak satellite signals. The invention includes as features, methods and apparatus for the calibration of a local oscillator, the cancellation of cross correlations, a Doppler location scheme, an ensemble averaging scheme, the calculation of almanac aiding from a table of orbit coefficients, absolute time determination, and a modified search engine.
    Type: Application
    Filed: March 8, 2008
    Publication date: July 24, 2008
    Inventors: Roderick C. Bryant, Andrew G. Dempster, Stanley L. Dougan, Trevor Hobbs, Eamonn P. Glennon
  • Patent number: 6642884
    Abstract: A method, device and system for determining a receiver location using weak signal satellite transmissions. The invention involves a sequence of exchanges between an aiding source and a receiver that serve to provide aiding information to the receiver so that the receiver's location may be determined in the presence of weak satellite transmissions. With the aiding information, the novel receiver detects, acquires and tracks weak satellite signals and computes position solutions from calculated pseudo ranges despite the inability to extract time synchronization date from the weak satellite signals.
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: November 4, 2003
    Assignee: SIGTEC Navigation Pty Ltd.
    Inventors: Roderick C. Bryant, Eamonn P. Glennon, Andrew G. Dempster, Stanley L. Dougan
  • Publication number: 20020005802
    Abstract: A method, device and system for determining a receiver location using weak signal satellite transmissions. The invention involves a sequence of exchanges between an aiding source and a receiver that serve to provide aiding information to the receiver so that the receiver's location may be determined in the presence of weak satellite transmissions. With the aiding information, the novel receiver detects, acquires and tracks weak satellite signals and computes position solutions from calculated pseudo ranges despite the inability to extract time synchronization date from the weak satellite signals.
    Type: Application
    Filed: May 8, 2001
    Publication date: January 17, 2002
    Inventors: Roderick C. Bryant, Eamonn P. Glennon, Andrew G. Dempster, Stanley L. Dougan