Portable precision clock with additonal functions
US5790477A · kind A · utility
106Cited by
3References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 9, 1997 |
| Grant date | Aug 4, 1998 |
| Priority date | — |
| Expiry date | Jun 9, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04R60/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The portable precision watch, additionally to time-keeping functions, also comprises a GPS receiver with antenna, evaluation electronics, a compass, a destination coordinate memory, an input element and a display element. With the evaluation electronics the coordinates of the location and the direction to the destination are computed and are made directly viewable as a vector display in the display element. Thus a very compact precision watch is provided which may be personally carried everywhere and worldwide, and directly displays the direction to any destination, in particular as a pocket watch or wrist watch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.