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
Header rail for a shower screen or the like
Uplink interference mitigation method and apparatus
Ultrathin fluid-absorbent cores
Arrays of optical confinements and uses thereof
Method and mobile device for awareness of language ability
Power management implementation in an optical link
Monitoring heap in real-time by a mobile agent to assess performance of virtual machine
  Randomly Featured Patents
Level sensor with alarm
Application of fluidized material to a substrate using displacement transfer
Multi band chip antenna with dual feeding ports, and mobile communication apparatus using the same
Method of and apparatus for measuring retardation of composite layer
System and method for generating a transporting instruction using an environmental sensor
Limit stops for a router depth of cut adjustment mechanism
Data communication systems and methods
Computer hinge
Grandiflora rose plant named `JAColpur`
Methods of using hydrofluoroethers as heat transfer fluids