Resources Contact Us Home
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
Method and apparatus for displaying system status with a wide range of viewing angle
Solid-state imaging apparatus, method of manufacturing solid-state imaging apparatus, and electronic apparatus
Image sensor with improved color crosstalk
Feature management of a communication device
Battery structures and related methods
Process for brominating unsaturated organic compounds with removal of quaternary ammonium or quaternary phosphonium monochlorides
Method for inhibiting thermal run-away
  Randomly Featured Patents
Method and apparatus for removing meat
Stack semiconductor package formed by multiple molding and method of manufacturing the same
Handheld device for handheld vision based absolute pointing system
Data burst randomizer
Non-flammable land and sea marker
Delivering calls using calendar information
Video export of a digital musical score
Suspension apparatus for vehicle
Theatre lighting control system
Gate latch apparatus and methods of use