Cursor controlling apparatus and its direction detection method
US5748181A · kind A · utility
9Cited by
9References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1994 |
| Grant date | May 5, 1998 |
| Priority date | — |
| Expiry date | Jul 1, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0312
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention is related to a method used in a cursor controlling apparatus for detecting a direction a cursor should move on a monitor which comprises steps of: intermittently receiving a light to obtain a series of different optical quantities; generating a series of voltage signals respectively responsive to the series of optical quantities; and determining a direction by detecting a sequence of the voltage signals. The present invention can reduce manufacturing cost, economize assembling time, and obtain a more accurate direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.