Electronic navigator for automotive vehicles
US4504913A · kind A · utility
55Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1982 |
| Grant date | Mar 12, 1985 |
| Priority date | — |
| Expiry date | Jun 7, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/367
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An automotive navigator using a microcomputer displays a car position by a cursor on a road map displayed on a CRT screen. The navigator uses a cassette tape which stores a plurality of road map data and several kinds of reduced map data and expanded map data. It also uses a group of manual switches including a switch for changing the displayed area, a switch for selecting an expanded map or reduced map and a switch for moving the cursor position. Necessary data are displayed on the screen by the state of each switch. A region corresponding to the cursor position is displayed by the expanded map.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.