Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Zero-force key activation keyboard with dynamic individual key illumination










Image Number 9 for United States Patent #7417624.

Described is a zero-force key activation keyboard with individual key illumination. The keyboard includes a non-moving key for causing generation of an input signal when activated. The key has a depressed surface defining an approximately concave well with sides forming an open region sized to receive a tip of a finger. A light emitter positioned on one side of the well emits a beam of light across the open region to an opposite side of the well. A light detector is positioned on the opposite side of the well to receive the light beam and to signal activation of the key when the light beam is obstructed from being received by the light detector. Each key is illuminated from within the well. When the key is activated, its illumination color can change. Upon release, the illumination color returns immediately or gradually back to a previous color or unlighted state.








 
 
  Recently Added Patents
Light source lighting device including a constant-current supply that is connected to a light source and supplies a constant current of a substantially constant magnitude to the light source,
Administrable compositions
Mass spectrometry device and method using ion-molecule reaction ionization
Switchable memory diodes based on ferroelectric/conjugated polymer heterostructures and/or their composites
Fused thiazole derivatives as kinase inhibitors
Etching apparatus and methods
Interferer region identification using image processing
  Randomly Featured Patents
Image forming apparatus
Device and process for excavating and backfilling of soil
Textile treatment processes and compositions therefor
Centralized service control for a telecommunication system
Sound bite augmentation
Sheet stripping apparatus
Programmable resistance network
Social network site recommender system and method
Method of enhancing the quality of high-moisture materials using system heat sources
Device and method for measuring blood flow in an organ