| Patent Number |
Title Of Patent |
Date Issued |
| 7555032 |
Signal receiver using alternating time segments |
June 30, 2009 |
| A GPS receiver and method using alternating "A" and "B" integration time segments. The polarities of certain GPS data bits are known beforehand and their expected reception times are known. The GPS signal in 10 millisecond "A" time segments and "B" time segments is depolarized accord |
| 7551126 |
GNSS sample processor for determining the location of an event |
June 23, 2009 |
| An apparatus and method for determining a GNSS position of an event where an event capture device writes a short burst of GNSS signal samples with an approximate time into an event data file and a GNSS sample processor reads the event data file some time later for determining the geo |
| 7480325 |
Signal receiver for integrating and combining integrations in alternating time segments for sign |
January 20, 2009 |
| A GPS receiver for integrating a GPS signal separately in a series of "A" type and "B" type time segments, the "A" segments alternating with the "B" time segments; combining the squares of the magnitudes of "A" time segment integrations corresponding to code phases for forming "A" type |
| 7283091 |
Radio positioning system for providing position and time for assisting GPS signal acquisition in |
October 16, 2007 |
| A mobile location system. The GPS location system includes a radio positioning system (RPS) for determining times-of-arrival at several locations for a radio positioning signal transmitted from a mobile unit and then using the times-of-arrival for determining an RPS-based position an |
| 7197064 |
Signal receiver having signal acquisition at low signal strength using interleaved time segments |
March 27, 2007 |
| A GPS receiver and method using alternating "A" and "B" integration time segments. The polarities of certain GPS data bits are known beforehand and their expected reception times are known. The GPS signal in 10 millisecond "A" time segments and "B" time segments is depolarized accord |
| 6990140 |
Signal receiver using coherent integration in interleaved time periods for signal acquisition at |
January 24, 2006 |
| A GPS receiver and method using alternating "A" and "B" integration time segments. The polarities of certain GPS data bits are known beforehand and their expected reception times are known. The GPS signal in 10 millisecond "A" time segments and "B" time segments is depolarized accord |
| 6898234 |
Signal receiver for integrating and combining integrations in alternating time segments for sign |
May 24, 2005 |
| A GPS receiver for integrating a GPS signal separately in a series of "A" type and "B" type time segments, the "A" segments alternating with the "B" time segments; combining the squares of the magnitudes of "A" time segment integrations corresponding to code phases for forming "A" type c |
| 6430416 |
Hybrid radio location system using a combination of satellite pseudoranges and radio pseudorange |
August 6, 2002 |
| A hybrid positioning system for locating an object using a combination of a GPS pseudoranges and local radio pseudoranges. The system includes one or more receptors coupled to a base station, and one or more location markers. The location markers are located with an object whose location |
| 6275185 |
GPS receiver using coarse orbital parameters for achieving a fast time to first fix |
August 14, 2001 |
| A GPS receiver having a fast time to first fix by comparing measured range rates for GPS satellites to GPS satellite velocities that are calculated from coarse GPS satellite orbital parameters. The coarse GPS satellite parameters are GPS almanac parameters or GPS ephemeris parameters tha |
| 6225945 |
GPS receiver using coarse orbital parameters for achieving a fast time to first fix |
May 1, 2001 |
| A GPS receiver having a fast time to first fix by comparing measured range rates for GPS satellites to GPS satellite velocities that are calculated from coarse GPS satellite orbital parameters. The coarse GPS satellite parameters are GPS almanac parameters or GPS ephemeris parameters tha |
| 5936572 |
Portable hybrid location determination system |
August 10, 1999 |
| Apparatus and method for determining the present location of a mobile user that carries the apparatus inside or outside buildings and structures within a region R. The apparatus includes a radio location determination (LD) signal module that receives radiowaves from at least three radio |
| 5899957 |
Carrier phase differential GPS corrections network |
May 4, 1999 |
| Method and apparatus for providing GPS pseudorange correction information over a selected geographic region S with a diameter of up to 300 km with an associated inaccuracy no greater than 5 cm. N spaced apart GPS reference stations (N>4), whose location coordinates (u.sub.n,v.sub. |
| 5838277 |
GPS-based controller module |
November 17, 1998 |
| A GPS-based integrated controller module combines in a single integrated package or module a GPS receiver, a map, and a logic or decision module which provides an output control signal or control code. The map of the integrated module provides various representations. Continuous function |
| 5731786 |
Compaction of SATPS information for subsequent signal processing |
March 24, 1998 |
| A method for characterization of data measurements made on signals received from a plurality of SATPS satellites that facilitates post-processing of these data to determine pseudoranges, code phases, carrier phases, pseudorange rate corrections, carrier phase corrections, spatial locatio |
| 5646629 |
Memory cartridge for a handheld electronic video game |
July 8, 1997 |
| An apparatus combining a handheld, electronic video game device, a location determination receiver, an electronic map and/or electronic yellow pages, and geocoding. The apparatus provides a user with his location and locations of map features and/or yellow page addresses proximate to his |
| 5563607 |
Time and/or location tagging of an event |
October 8, 1996 |
| A differential GPS system for precise time and/or location tagging of an event. Reference and rover units cooperate to compensate for delayed availability at the rover unit of error-correction data transmitted via a two-way, high-latency communication link. A reference unit calculates an |
