Encoding device
US6351224B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Sep 7, 2000 |
| Grant date | Feb 26, 2002 |
| Priority date | — |
| Expiry date | Sep 7, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/03543
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An encoding device in which signals generated thereof can be efficiently propagated comprises a housing and a tracing ball rotatably arranged on said housing. An encoding assembly including a pair of encoding wheels is mechanically arranged adjacent to said tracing ball and driven by said tracing ball. Pairs of light emitters and receivers are arranged respectively to each encoding wheel. A gearing including first and second gears is arranged between the tracing ball and the encoding assembly. The teeth number of the first gear is smaller than the second gear, such that the rotations of the encoding wheel can be considerably increased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.