Position sensing of a remote target
US5926264A · kind A · utility
20Cited by
9References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1997 |
| Grant date | Jul 20, 1999 |
| Priority date | — |
| Expiry date | Apr 10, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0304
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Apparatus for the position sensing of a remote target. A preferred embodiment is used to control the position of a graphical pointer on a computer screen. A light emitting diode illuminates the head of the computer operator and an array of detectors detect radiation returned by a retroreflector attached to the head of the operator. Signal processing means is included to derive information about the position of the operator's head from the detector outputs and convert it to a form suitable for input to computer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.