Assignee
TOPCON GPS LLC
US26 patents
Top patents by PatentIndex Score
US6493378B1Dec 10, 2002
Methods and apparatuses for reducing multipath errors in the demodulation of pseudo-random coded signals
TOPCON GPS LLC88 citations96
US6633256B2Oct 14, 2003
Methods and systems for improvement of measurement efficiency in surveying
TOPCON GPS LLC50 citations92
US7522099B2Apr 21, 2009
Position determination using carrier phase measurements of satellite signals
TOPCON GPS LLC33 citations90
US7439908B1Oct 21, 2008
Method and apparatus for determining smoothed code coordinates of a mobile rover
TOPCON GPS LLC28 citations90
US7382313B1Jun 3, 2008
Method for absolute calibration of global navigation satellite system antennas
TOPCON GPS LLC48 citations90
US6456233B1Sep 24, 2002
Methods and apparatuses of positioning a mobile user in a system of satellite differential navigation
TOPCON GPS LLC18 citations90
US7221314B2May 22, 2007
Estimation and resolution of carrier wave ambiguities in a position navigation system
TOPCON GPS LLC37 citations89
US7002513B2Feb 21, 2006
Estimation and resolution of carrier wave ambiguities in a position navigation system
TOPCON GPS LLC30 citations89
US6861979B1Mar 1, 2005
Method and apparatus for detecting anomalous measurements in a satellite navigation receiver
TOPCON GPS LLC50 citations88
US6731701B2May 4, 2004
Navigation data prediction for GPS and GLONASS weak signal tracking
TOPCON GPS LLC42 citations87
US6950059B2Sep 27, 2005
Position estimation using a network of a global-positioning receivers
TOPCON GPS LLC50 citations86
US6836247B2Dec 28, 2004
Antenna structures for reducing the effects of multipath radio signals
TOPCON GPS LLC52 citations86
US7764226B1Jul 27, 2010
Universal digital channel for receiving signals of global navigation satellite systems
TOPCON GPS LLC36 citations85
US6882312B1Apr 19, 2005
Method and apparatus for multipath mitigation using antenna array
TOPCON GPS LLC31 citations85
US7710316B1May 4, 2010
Method and apparatus for determining smoothed code coordinates of a mobile rover
TOPCON GPS LLC8 citations82
US7222035B1May 22, 2007
Method and apparatus for determining changing signal frequency
TOPCON GPS LLC13 citations82
US7495607B1Feb 24, 2009
Method and apparatus for adaptive processing of signals received from satellite navigation systems
TOPCON GPS LLC14 citations79
US7102563B2Sep 5, 2006
Methods and apparatuses of estimating the position of a mobile user in a system of satellite differential navigation
TOPCON GPS LLC14 citations76
US6659409B2Dec 9, 2003
Positioning poles for surveying equipment, global positioning antennas, and the like
TOPCON GPS LLC12 citations74
US7710324B2May 4, 2010
Patch antenna with comb substrate
TOPCON GPS LLC11 citations73
US6674399B2Jan 6, 2004
Methods and apparatuses of positioning a mobile user in a system of satellite differential navigation
TOPCON GPS LLC5 citations71
US7737889B1Jun 15, 2010
Method and apparatus for processing global navigation satellite system signals
TOPCON GPS LLC4 citations60
US8368593B2Feb 5, 2013
Measurement of energy potential (signal-to-noise ratio) in digital global navigation satellite systems receivers
TOPCON GPS LLC2 citations57
US7123186B2Oct 17, 2006
Controlling solution latency in a global navigation satellite receiver
TOPCON GPS LLC4 citations56
US8373593B2Feb 12, 2013
Navigation receiver for processing signals from a set of antenna units
TOPCON GPS LLC4 citations51
US9172144B2Oct 27, 2015
Patch antenna with capacitive elements
TOPCON GPS LLC1 citations48