Electronic board system and coordinates-inputting pen
US6700129B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 2002 |
| Grant date | Mar 2, 2004 |
| Priority date | — |
| Expiry date | Jul 24, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0383
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention transmits, to an electronic board controller 14, click signals generated upon manipulating multiple switches provided on a coordinates-inputting pen 13, timing signals upon detecting infrared scanning beams 18a and 18b, and the like without using a connecting wire.Specifically, light-emitting elements are provided which can emit visible or infrared light to the coordinates-inputting pen 13. A timing signal upon detecting the infrared scanning beam with the pen and a click signal generated upon manipulating the switch on the pen are sent out on a modulated light 19 to be received by a light receiver 20 arranged at a fixed position and transmitted to the electronic board controller 14.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.