Running guide system
US4496996A · kind A · utility
3Cited by
4References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 1982 |
| Grant date | Jan 29, 1985 |
| Priority date | — |
| Expiry date | Apr 15, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B29/106
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Maps from a starting point to a destination are automatically, successively renewed and indicated on CRT each time a predetermined distance is covered. The map to be indicated are divided into a plurality of map contents and stored in a memory medium, and further, checkpoints for correcting accumulated errors of the running distance each predetermined distance are stored in the memory medium. Additionally, a notice by voice is given everytime map is renewed, immediately before the renewal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.