Route entry location apparatus
First Claim
1. A central navigation control system for determining an entry point from an unmatched location to a known route, the central navigation control system comprising:
- a network of navigation route segments;
an absolute position reverse differential corrector for determining a corrected position of a remote mobile device based on uncorrected absolute position data received from the mobile device; and
a route entry determiner operably coupled to the network and the reverse differential corrector for determining an accurate entry point of the mobile device onto the network of route segments.
4 Assignments
0 Petitions
Accused Products
Abstract
A navigation system (10) for determining an entry point from an unmatched location to a known route, including a network of navigation route segments (48), an absolute position reverse differential corrector (27) for determining a corrected position of a remote mobile device (12) based on uncorrected absolute position data received from the mobile device (12), and a route entry determiner (32) operably coupled to the network (48) and the reverse differential corrector (27) for determining an accurate entry point of the mobile device (12) onto the network of route segments (48).
45 Citations
11 Claims
-
1. A central navigation control system for determining an entry point from an unmatched location to a known route, the central navigation control system comprising:
-
a network of navigation route segments; an absolute position reverse differential corrector for determining a corrected position of a remote mobile device based on uncorrected absolute position data received from the mobile device; and a route entry determiner operably coupled to the network and the reverse differential corrector for determining an accurate entry point of the mobile device onto the network of route segments. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A navigation system for determining a route entry point of a remotely located mobile device from an unmatched location to a known route, the navigation system comprising:
-
a central navigation control system including, a database of navigation route segments; an absolute position reverse differential corrector for determining a corrected position of the mobile device at an unmatched location based on uncorrected absolute position data received from the mobile device; a route entry determiner operably coupled to a network and the reverse differential corrector for determining an accurate entry point of the mobile device onto the navigation route segments; a first two-way communications apparatus operably coupled to the central navigation control system for communicating data between the central navigation control system and the mobile device; wherein the mobile device includes, a user data input device for entering data to be sent to the central navigation control system; a user interface for receiving data from the central navigation control system; a GPS receiver for receiving absolute position data; and a second two-way communications apparatus operably couple to the input device, the user interface, and the GPS receiver for transmitting and receiving data between the mobile device and the central navigation control system. - View Dependent Claims (8, 9, 10)
-
-
11. A route entry location apparatus for determining a route entry point of a remotely located mobile device from an unmatched location to a known route, the route entry location apparatus comprising:
-
a database of navigation route segments; a differential global positioning system (DGPS) determiner for determining a corrected position of the remote mobile device at an unmatched location based on uncorrected absolute position data received from the mobile device; and a route entry locator operably coupled to the database and the DGPS determiner for locating an accurate entry point of the mobile device onto the navigation route segments.
-
Specification