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Browse by Category: Main > Communications
Class Information
Number: 342/357.05
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Directive > Including a satellite > With position indicating > Using doppler frequency shift
Description: Subject matter wherein position is determined using the magnitude of the change in the observed wave cycles per time when the satellite and object are moving with respect to each other.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
7746220 Moving object detection apparatus Jun. 29, 2010
7696925 Memory reduction in GNSS receiver Apr. 13, 2010
7679551 Methods and systems for doppler frequency shift removal and correlation for software-based receivers Mar. 16, 2010
7667640 Determining a geolocation solution of an emitter on earth using satellite signals Feb. 23, 2010
7589671 GPS node locator using an intermediate node location for determining location of a remote node Sep. 15, 2009
7574301 Global positioning system receiver and correlating circuit thereof Aug. 11, 2009
7564403 Always-on satellite positioning receiver Jul. 21, 2009
7545894 Method and apparatus for detecting and processing global positioning system (GPS) signals Jun. 9, 2009
7535414 Navigational positioning without timing information May. 19, 2009
7528771 Method and system for GPS position measuring and frequency error detecting method May. 5, 2009
7492810 Method and apparatus for segmented code correlation Feb. 17, 2009
7486749 Determination of a code phase Feb. 3, 2009
7466263 GNSS receiver using stored navigation data bits Dec. 16, 2008
7395155 Global positioning system receiver and correlating circuit thereof Jul. 1, 2008
7375682 Always-on satellite positioning receiver May. 20, 2008
7336223 System and method for establishing the instantaneous speed of an object Feb. 26, 2008
7302267 Apparatus and method for estimating a velocity of a mobile terminal in a mobile communication system Nov. 27, 2007
7269512 Information processing apparatus and GPS positioning method Sep. 11, 2007
7236883 Aiding in a satellite positioning system Jun. 26, 2007
7200414 Client-aiding with cellphones in a 150-KM radius area Apr. 3, 2007
7133772 Method and apparatus for navigation using instantaneous Doppler measurements from satellites Nov. 7, 2006
7129839 Device for monitoring an area Oct. 31, 2006
7109920 Moving platform position determination system and method Sep. 19, 2006
7082155 Reception level measuring system Jul. 25, 2006
7035315 Doppler corrected communications receiver and method of removing doppler frequency shift Apr. 25, 2006
7012563 Method and system for frequency drift prediction Mar. 14, 2006
6965754 Satellite positioning system receiver with reference oscillator circuit and methods therefor Nov. 15, 2005
6952180 Method and apparatus for determination of position Oct. 4, 2005
6937865 Position detection system integrated into mobile terminal Aug. 30, 2005
6933886 Signal acquisition using data bit information Aug. 23, 2005
6839547 Enhanced GPS receiver utilizing wireless infrastructure Jan. 4, 2005
6839021 Method and apparatus for determining time in a satellite positioning system Jan. 4, 2005
6829558 Method for reducing position uncertainty of a portable inertial navigation device Dec. 7, 2004
6806828 Passive range and angle measurement system and method Oct. 19, 2004
6774841 Method and system for processing positioning signals in a geometric mode Aug. 10, 2004
6775615 Method of obtaining a position fix in a GPS receiver and a GPS receiver for the same Aug. 10, 2004
6771211 Method, system and devices for positioning a receiver Aug. 3, 2004
6720916 Apparatus and method for performing open loop tracking of a signal Apr. 13, 2004
6720915 Methods and apparatuses for using assistance data relating to satellite position systems Apr. 13, 2004
6718174 Method and apparatus for estimating velocity of a terminal in a wireless communication system Apr. 6, 2004
6697629 Method and apparatus for measuring timing of signals received from multiple base stations in a CDMA communication system Feb. 24, 2004
6680696 Positioning satellite system for measuring position of signal source Jan. 20, 2004
6671622 Vehicle self-carried positioning method and system thereof Dec. 30, 2003
6661371 Oscillator frequency correction in GPS signal acquisition Dec. 9, 2003
6650285 Method and apparatus for rapidly estimating the doppler-error and other receiver frequency errors of global positioning system satellite signals weakened by obstructions in the signal path Nov. 18, 2003
6650282 Positioning equipment Nov. 18, 2003
6636574 Doppler spread/velocity estimation in mobile wireless communication devices and methods therefor Oct. 21, 2003
6628231 Location of radio frequency emitting targets Sep. 30, 2003
6611757 Global positioning system tag system Aug. 26, 2003
6593879 Using the global positioning satellite system to determine attitude rates using doppler effects Jul. 15, 2003

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