| US 7,577,514 B2 | ||
| Running time estimation apparatus, running data relay apparatus, and running time estimation system | ||
| Ken Nakaoka, Ichinomiya (Japan) | ||
| Assigned to Sanyo Electric Co., Ltd., Osaka (Japan) | ||
| Filed on Mar. 30, 2006, as Appl. No. 11/392,631. | ||
| Claims priority of application No. P2005-097391 (JP), filed on Mar. 30, 2005. | ||
| Prior Publication US 2006/0220906 A1, Oct. 05, 2006 | ||
| Int. Cl. G08G 1/133 (2006.01); G01C 21/00 (2006.01) | ||
| U.S. Cl. 701—119 [701/207; 340/992] | 9 Claims |
| 1. A running time estimation apparatus installed in a vehicle to estimate a running time between designated positions, comprising:
a running data receiver configured to receive running data including a plurality of time and position data having a predetermined
time and a vehicle position of different vehicles at the predetermined time by use of a wireless communication system;
a running time estimation data generator configured to generate running time estimation data in which the running data received
by the running data receiver is associated with road information from which a position and length of a road can be determined;
and
a running time calculator configured to calculate a running time between the designated positions by using the running time
estimation data generated by the running time estimation data generator, wherein, if the designated positions include a gap
section which is a section of the road having no association with the running data in the running time estimation data, the
running time calculator estimates a running time of the gap section by using the running data placed before and after the
gap section.
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