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).
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Patent number: 8816905Abstract: 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: GrantFiled: February 24, 2012Date of Patent: August 26, 2014Assignee: u-blox AGInventors: Roderick C. Bryant, Andrew G. Dempster, Stanley L. Dougan, Trevor Hobbs, Eamonn P. Glennon
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Patent number: 8542714Abstract: 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: GrantFiled: November 5, 2007Date of Patent: September 24, 2013Assignee: u-blox AGInventors: Roderick Bryant, Eamonn P. Glennon, Ian Anthony Sainsbery, John Kenmure Gordon
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Publication number: 20120249367Abstract: 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: ApplicationFiled: February 24, 2012Publication date: October 4, 2012Inventors: Roderick C. BRYANT, Andrew G. DEMPSTER, Stanley L. DOUGAN, Trevor HOBBS, Eamonn P. GLENNON
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Patent number: 8125381Abstract: 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: GrantFiled: March 8, 2008Date of Patent: February 28, 2012Assignee: U-Blox AGInventors: Roderick C. Bryant, Andrew G. Dempster, Stanley L. Dougan, Trevor Hobbs, Eamonn P. Glennon
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Publication number: 20110103337Abstract: 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: ApplicationFiled: May 1, 2009Publication date: May 5, 2011Inventors: Roderick Bryant, Eamonn P. Glennon
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Publication number: 20090128403Abstract: 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: ApplicationFiled: March 8, 2008Publication date: May 21, 2009Inventors: Roderick C. Bryant, Andrew G. Dempster, Stanley L. Dougan, Trevor Hobbs, Eamonn P. Glennon
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Publication number: 20090109088Abstract: 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: ApplicationFiled: March 7, 2008Publication date: April 30, 2009Inventors: Roderick C. Bryant, Andrew G. Dempster, Stanley L. Dougan, Trevor Hobbs, Eamonn P. Glennon
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Publication number: 20090102709Abstract: 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: ApplicationFiled: March 8, 2008Publication date: April 23, 2009Inventors: Roderick C. BRYANT, Andrew G. Dempster, Stanley L. Dougan, Trevor Hobbs, Eamonn P. Glennon
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Patent number: 7463189Abstract: 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: GrantFiled: October 4, 2003Date of Patent: December 9, 2008Assignee: SigNav Pty Ltd.Inventors: Roderick C. Bryant, Andrew G. Dempster, Stanley L. Dougan, Trevor Hobbs, Eamonn P. Glennon
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Publication number: 20080180318Abstract: 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: ApplicationFiled: June 27, 2007Publication date: July 31, 2008Inventors: Eamonn P. GLENNON, Roderick Bryant, Ian Anthony Sainsbery, John Kenmure Gordon
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Publication number: 20080174481Abstract: 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: ApplicationFiled: March 7, 2008Publication date: July 24, 2008Inventors: Roderick C. Bryant, Andrew G. Dempster, Stanley L. Dougan, Trevor Hobbs, Eamonn P. Glennon
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Publication number: 20080174483Abstract: 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: ApplicationFiled: March 8, 2008Publication date: July 24, 2008Inventors: Roderick C. Bryant, Andrew G. Dempster, Stanley L. Dougan, Trevor Hobbs, Eamonn P. Glennon
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Patent number: 6642884Abstract: 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: GrantFiled: May 8, 2001Date of Patent: November 4, 2003Assignee: SIGTEC Navigation Pty Ltd.Inventors: Roderick C. Bryant, Eamonn P. Glennon, Andrew G. Dempster, Stanley L. Dougan
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Publication number: 20020005802Abstract: 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: ApplicationFiled: May 8, 2001Publication date: January 17, 2002Inventors: Roderick C. Bryant, Eamonn P. Glennon, Andrew G. Dempster, Stanley L. Dougan