Patent ID: 11897446
Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
Field: Measurement (Instruments)
Classification: CPC B  G | IPC B  G

Claim 14:
15. A method for segmenting a route in a mapping system for an unknown area, the method comprising:
receiving a signal at a navigation system from a GPS satellite;
processing the signal into a current geographical location of the navigation system;
accessing a segment list stored within a memory of the navigation system, wherein the segment list comprises a plurality of known segments that includes geographical location data;
determining whether at least one known segment from the segment list includes geographical location data that is identical to the current geographical location of the navigation system;
recording a new segment for storage in the memory of the navigation when at least one known segment does not include geographical location data that is identical to the current geographical location of the navigation system;
monitoring physical turns of the navigation system;
terminating the new segment only in response to detecting a physical turn by the navigation system; and
linking the new segment to at least one known segment from the segment list only in response to detecting the physical turn.