1
Leonid Sheynblat, Norman F Krasner: Method and apparatus for providing location-based information via a computer network. Snaptrack, Philip Wadsworth, Charles Brown, Bruce W Greenhaus, January 13, 2004: US06677894 (550 worldwide citation)


Methods and apparatuses for distributing location-based information (i.e., information specific to a client's location or a location of interest to the client) to a client, which may be a mobile SPS receiver, via the Internet and in particular, the World-Wide Web. The client provides informatio ...


2
Leonid Sheynblat: Satellite positioning system augmentation with wireless communication signals. SnapTrack, Blakely Sokoloff Taylor & Zafman, December 7, 1999: US05999124 (474 worldwide citation)


A method and apparatus for processing position information from satellite positioning system satellites and from cellular based communication signals. In one example of a method according to the invention, a SPS receiver receives SPS signals from at least one SPS satellite. This SPS receiver is coup ...


3
K Tysen Mueller, Peter V W Loomis, Rudolph M Kalafus, Leonid Sheynblat: Networked differential GPS system. Trimble Navigation, Thomas E Schatzel, June 21, 1994: US05323322 (306 worldwide citation)


An embodiment of the present invention relates to a worldwide network of differential GPS reference stations (NDGPS) that continually track the entire GPS satellite constellation and provide interpolations of reference station corrections tailored for particular user locations between the reference ...


4
Leonid Sheynblat: Method and system for using altitude information in a satellite positioning system. SnapTrack, Blakely Sokoloff Taylor & Zafman, May 9, 2000: US06061018 (278 worldwide citation)


A method and apparatus for determining a position of a mobile satellite positioning system (SPS) receiver. In one example of a method, a cell object information is determined; this cell object information comprises at least one of a cell object location or a cell object identification. An altitude i ...


5
Leonid Sheynblat, Norman F Krasner: Method and apparatus for measurement processing of satellite positioning system (SPS) signals. SnapTrack, Blakely Sokoloff Taylor & Zafman, November 6, 2001: US06313786 (266 worldwide citation)


A method and apparatus is disclosed for measurement processing of Satellite Positioning System (SPS) signals. A plurality of SPS signals from a corresponding plurality of SPS satellites are received in an SPS receiver. The signal environment corresponding to the location in which the SPS receiver is ...


6
Mark Moeglein, Leonid Sheynblat, Norman F Krasner: Satellite positioning reference system and method. SnapTrack, Blakely Sokoloff Taylor & Zafman, April 10, 2001: US06215441 (230 worldwide citation)


Methods and apparatuses which use satellite position system (SPS) reference receivers. In one example of the invention, a plurality of SPS reference receivers, such as Global Positioning System (GPS) reference receivers, each having a known position, are dispersed over a geographical region. Each of ...


7
Mark Moeglein, Leonid Sheynblat, Norman F Krasner: Satellite positioning reference system and method. SnapTrack, Blakely Sokoloff Taylor & Zafman, June 25, 2002: US06411254 (172 worldwide citation)


Methods and apparatuses which use satellite position system (SPS) reference receivers. In one example of the invention, a plurality of SPS reference receivers, such as Global Positioning System (GPS) reference receivers, each having a known position, are dispersed over a geographical region. Each of ...


8
Leonid Sheynblat: Method and system for using altitude information in a satellite positioning system. SnapTrack, Blakely Sokoloff Taylor & Zafman, October 23, 2001: US06307504 (162 worldwide citation)


A method and apparatus for determining a position of a mobile satellite positioning system (SPS) receiver. In one example of a method, a cell object information is determined; this cell object information comprises at least one of a cell object location or a cell object identification. An altitude i ...


9
Leonid Sheynblat, Norman F Krasner: Method and apparatus for determining time in a satellite positioning system. SnapTrack, Blakely Sokoloff Taylor & Zafman, July 22, 2003: US06597311 (162 worldwide citation)


A method and apparatus for determining a reference time associated with a satellite positioning system. In turn, the reference time, in one embodiment, may be used to determine other navigational information. Such navigational information may include, for example, the location/position of a satellit ...


10
Leonid Sheynblat, Thomas George Wolf: Method and apparatus for providing reserve power in a cellular telephone. SnapTrack, Blakely Sokoloff Taylor & Zafman, November 6, 2001: US06314308 (132 worldwide citation)


Reserve power is provided in a portable cellular transceiver comprising a Global Positioning System (GPS) receiver by monitoring a power level of a battery of the portable cellular transceiver using a power detection circuit. A comparator circuit determines whether the power level of the battery is ...



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