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Application filed by Alfred PollakfiledCriticalAlfred Pollak
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Publication of AT36791BpublicationCriticalpatent/AT36791B/de
Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De
Eliminating influence of external light on opto-electronic keyboard - determining whether keying surface receives outside light or reflection of emitted light is increased as surface is activated
Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De
Eliminating influence of external light on opto-electronic keyboard - determining whether keying surface receives outside light or reflection of emitted light is increased as surface is activated