Method for initiating navigation guidance in a distributed communications system
US7418339B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2005 |
| Grant date | Aug 26, 2008 |
| Priority date | — |
| Expiry date | Jun 24, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/09685
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method is provided for improved navigation guidance in a portable navigation device (104) having a first navigation operating mode (302) for requesting (318, 324) and receiving (326, 334) routelet data and navigation route data and operating in accordance with the routelet data (332) and a second operation navigation mode (304) for operating in accordance with the navigation route data (338). The method includes in the first navigation operating mode (302), the steps of transmitting a routelet request (318) comprising location data, speed data and direction data, the location, speed and direction data determined (312, 314 316) in response to a present location, a present speed and a present direction of travel, respectively, of the portable navigation device (104), receiving routelet data (326) and operating in accordance with the received routelet data (332).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.