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
Robot control device
Validating the configuration of distributed systems
Methods, devices and computer program products providing for establishing a model for emulating a physical quantity which depends on at least one input parameter, and use thereof
Method, apparatus or computer program for changing from scheduled to unscheduled communication modes
Apparatus and method for information display of portable device
Virtual physician acute myocardial infarction detection system and method
Wafer level packaging structure with large contact area and preparation method thereof
  Randomly Featured Patents
Variable cam follower for an internal combustion engine
Dual-band circularly polarized antenna
Method and apparatus for selecting a password
Process for polymerizing olefins
Belt-type abrader with means to compensate for tool wear
Plant and method for the stunning and killing of animals for slaughter through asphyxiation
High performance fin configuration for air cooled heat sinks