Eugene Leitl wrote: > Using biofeedback techiques, you can extract few bit/s from OPAMPd > scalp/brow myopotentials (AgCl electrodes in a headband, or geodetic > electrode array in a HMD mount helmet -- bald gentlemen are obviously > preferable), or patternmatch FFTeed EEG. The latter is really tricky, but > amateurs have purported it to work. If you train it real good you > should be able to intuitively steer a pointer (nudging by increments), > trigger some devices, and generally mess up your EEG pattern ;) Do you have more information on that? I'm thinking of an input system by the use of some normally unused or not so important body functions (e.g. EEG or small movements of eyebrow or little finger). The speed might be less good with many solutions, but I have no idea of bandwidth reachable using e.g. the EEG method. The output might be easier, a little current on the skin, just feelable, but not hurting, for serial output to the human. Most of these solutions need a code like morse (but with some additional control sequences for i18n (composition of latin codes, perhaps even a very tricky system for kanji), terminal emulation (perhaps an emacs-mode for complete emacs-functionality via body functions?), process control (e.g. SIGINTs). I would like to develop such a code, but i'd have to get the frequencies of the different keystrokes. Does anybody have informations? I could create those tables by myself, be i'd need a key sniffer for X-Windows (I often heard of xkeys, but archiing and altavistaing was not successfull). Does anybody know such a key sniffer? DniQ.
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