Back to Search
Start Over
An application of infrared technique to control a computer keyboard for handicap
- Source :
- ISCE '97. Proceedings of 1997 IEEE International Symposium on Consumer Electronics (Cat. No.97TH8348).
- Publication Year :
- 2002
- Publisher :
- IEEE, 2002.
-
Abstract
- A new infrared-controlled keyboard instead of the conventional computer keyboard was developed for those with hand dysfunction. The infrared transmitter with laser director was placed on the eyeglasses, and the keys of the conventional computer keyboard were all replaced by infrared receivers. In the infrared receivers we designed a modulized circuit to receive, demodulate and process the infrared signals. The modulized circuit used signal processing technique to convert the astable signal of the infrared receiver to a standard pulse train which could be used as control signal easily.
- Subjects :
- Signal processing
InformationSystems_INFORMATIONINTERFACESANDPRESENTATION(e.g.,HCI)
Infrared
Computer science
business.industry
Transmitter
ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION
Electrical engineering
Process (computing)
Laser
Signal
GeneralLiterature_MISCELLANEOUS
law.invention
law
Pulse wave
Demodulation
business
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- ISCE '97. Proceedings of 1997 IEEE International Symposium on Consumer Electronics (Cat. No.97TH8348)
- Accession number :
- edsair.doi...........0419f527693e9e21e03ec8037dcdaf08