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
Storage system, control method therefor, and program
Eyeglasses
Mobile electronic device
Portable communication terminal, communication method and control program
Method for generating optical codes for a print-context
Vehicle detection apparatus and method using magnetic sensor
Caprazene as a novel compound and derivatives thereof, and caprazol as a novel compound and derivatives thereof
  Randomly Featured Patents
Method and apparatus for forming heat exchanger assemblies with bendable tube sheet flanges
TRANSMISSION APPARATUS, TRANSMITTING METHOD, RECEPTION APPARATUS, RECEPTION METHOD, PICTURE PROCESSING SYSTEM, PICTURE PROCESSING METHOD, PICTURE DATA PROCESSING APPARATUS, PICTURE DATA PROCES
Superoxide dismutase variants and methods of use thereof
Battery electrode sheet
Dual cure coating compositions, multi-component composite coatings, and related coated substrates
Modified block copolymers functionalized in the monoalkenyl aromatic or vinylarene block
Connection assembly for ultra high pressure liquid chromatography
Vacuum-breaking valve for a refrigerated compartment
Encapsulating material for solar cell
Release and carry-out apparatus