Appeal No. 1998-1341
Application 08/358,792
transmitter which transmits a signal in response to a tracking initiating event. The target is
tracked by a mobile receive station and a mobile transmit and receive station. Each of the
mobile tracking stations contains a means for determining the position of the tracking
station. The means for determining the position uses a Global Positioning System (GPS)
or a Global Orbiting Navigation Satellite System (GLONASS). On page 10 of the
specification, Appellant identifies that the mobile stations also include a means for
receiving the signal transmitted by the target and means for determining the direction
(bearing) of the target relative to the mobile stations. The mobile transmit and receive
station transmits it’s position and the bearing to the target. On page 11 of the
specification, Appellant identifies that the mobile receive station receives the position and
bearing data from the mobile transmit and receive station. On pages 11 and 12 of the
specification, Appellant identifies that the mobile receive station also has a computer
which uses the position of both the mobile stations and the bearing to the target from both
of the stations to determine the position of the target.
Independent claim 28 is illustrative of the invention and is reproduced as follows:
28. A tracking system for locating or tracking a mobile target by triangulation
in a region that lacks a fixed participating navigation reference in the vicinity
of said target, said system comprising:
first and second mobile tracking stations adapted for transgressing
said region in the vicinity of said target and for cooperatively providing
instantaneous position references for locating a target by triangulation;
2
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Next
Last modified: November 3, 2007