Guiding spot display apparatus
US4761742A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 1986 |
| Grant date | Aug 2, 1988 |
| Priority date | — |
| Expiry date | Apr 25, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/3679
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A guiding spot display apparatus displays a number of guiding spots for providing various guiding information on a road map. The apparatus includes a storage medium for storing a plurality of guiding spot data each being assigned a plurality of priorities and corresponding to one of a plurality of guiding classifications, a display selecting device for generating a display signal indicative of the classification of the guiding spots to be displayed, a control unit responsive to the selection signal to successively input from the storage medium the corresponding guiding spot data starting from the one having the highest priority and generate a display signal for displaying the data, and a display responsive to the display signal to display the selected guiding spots on the road map. Thus, the degree of the freedom in the display of guiding spots is improved and the apparatus is well suited for use in a wide range of guiding information application.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.