Communications: directive radio wave systems and devices (e.g. – Directive – Including a satellite
Reexamination Certificate
2005-09-21
2008-08-05
Tarcza, Thomas H. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a satellite
Reexamination Certificate
active
07408503
ABSTRACT:
A positioning system is provided to set easily initial position information at a low cost without using a database in which positions of base stations are stored. A GPS server200has a server positioning section210athat receives a position related signal transmitted by a GPS satellite to obtain data. A server-orbit-information acquiring program232analyzes the data to generate orbit information262and stores orbit information262in a server third storing unit260(ST30). A satellite-direction-information generating program234generates satellite direction information264a,which includes an elevation angle and an azimuth angle of the GPS satellite viewed from a reference point (ST31). A generation-time-information generating program236acquires the time when the satellite direction information264ais generated from a server clock section218aand stores the time in the server third storing unit260(ST32).
REFERENCES:
patent: 6675011 (2004-01-01), Kita
patent: 6963749 (2005-11-01), Hayashida
patent: 6975266 (2005-12-01), Abraham et al.
patent: 2002311122 (2002-10-01), None
Kurata Tomoyuki
Maruyama Akira
Global IP Counselors, LLP
Nguyen Nga X
Seiko Epson Corporation
Tarcza Thomas H.
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