Travel time obtaining system, local map data server, travel time obtaining server, control methods thereof, and recording medium
US6401031B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Feb 20, 2001 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Feb 20, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q10/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A map server 151 transmits information representing travel time between a nearby point and a via point as a response. An ISP 171 transmits information representing travel time between destination and the via point as a response. A travel time obtaining server 161 accepts an enquiry indicating a nearby point and destination from a terminal 111, and selects a ISP 171 on which the destination is registered from a plurality of the ISP 171. The travel time obtaining server 161 obtains information representing a via point and travel time A between the travel-time and the destination from the selected ISP 171, and obtains information representing travel time B between the nearby point and the via point from the map server 151. The travel time obtaining server 161 calculates A+B, and transmits information representing the calculation result to the terminal 111 as a response.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.