Navigation system
US6853904B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 19, 2003 |
| Grant date | Feb 8, 2005 |
| Priority date | — |
| Expiry date | Mar 13, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/0969
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a navigation system, display screen handling PG 2032 prepares hierarchically a plurality of operation screens to receive the setting from the operator, and changes the operation screen displayed on display 208 according to the content of the operation to operation button group 207 by the operator, the operation screen under the display, and said layered structure. Further, communication control PG 2032 controls cellular phone 30 through cellular phone IF 204 when it is necessary to receive the information from the information service center 10 in order to process according to the setting given by the operator through each of a series of operation screens displayed on display 208, and establishes the communication line between information service center 10 and this system. And, after information is received, the communication line is cut off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.