Light ball electronic mouse
US4951034A · kind A · utility
20Cited by
6References
7Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Feb 12, 1987 |
| Grant date | Aug 21, 1990 |
| Priority date | — |
| Expiry date | Feb 12, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20201
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A light ball electronic mouse using a ball with a specific gravity between one and four, X and Y shaft encoders of substantially reduced diameter, and a pressure roller of substantially reduced force for controlling the position of a cursor in a video display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.