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Class Information
Number: 341/31
Name: Coded data generation or conversion > Bodily actuated code generator > Including keyboard or keypad > Photoelectric actuation
Description: Subject matter in which the operation of a control element is sensed by an electrical light sensor.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7601948 |
Encoder device and alignment device for an encoder device |
Oct. 13, 2009 |
| 7554077 |
Encoder |
Jun. 30, 2009 |
| 7544924 |
Directional input device with a light directing shaft |
Jun. 9, 2009 |
| 7525113 |
Optical scanning unit and method for mounting the same |
Apr. 28, 2009 |
| 7525454 |
Keypad assembly for a portable terminal |
Apr. 28, 2009 |
| 7501570 |
Electric wind instrument and key detection structure thereof |
Mar. 10, 2009 |
| 7446677 |
Method and apparatus for optically detecting selections made on an input device |
Nov. 4, 2008 |
| 7432911 |
Keyboard for mobile devices |
Oct. 7, 2008 |
| 7414238 |
Optical encoder device for small-sized motor and method of producing the same |
Aug. 19, 2008 |
| 7391012 |
Apparatus for detecting rotational angle of rotational element and detecting method thereof |
Jun. 24, 2008 |
| 7378990 |
Laser locus ball apparatus for a wireless keyboard |
May. 27, 2008 |
| 7271743 |
Switch arrangement and a switch matrix structure for a keypad |
Sep. 18, 2007 |
| 7271797 |
Optical window for generating a waveforms |
Sep. 18, 2007 |
| 7268705 |
Input detection based on speckle-modulated laser self-mixing |
Sep. 11, 2007 |
| 7265338 |
Photoelectric encoder using an incoherent semiconductor light source |
Sep. 4, 2007 |
| 7193535 |
Illuminated keyboard |
Mar. 20, 2007 |
| 7193536 |
Illuminated keyboard |
Mar. 20, 2007 |
| 7064744 |
Optical induction/trackball dual-mode mouse |
Jun. 20, 2006 |
| 7060968 |
Method and apparatus for optical encoding with compressible imaging |
Jun. 13, 2006 |
| 7053799 |
Keypad with illumination structure |
May. 30, 2006 |
| 7042371 |
Optical keyboard with geodesic optical elements |
May. 9, 2006 |
| 7026959 |
Optical joystick module |
Apr. 11, 2006 |
| 6965327 |
Device and method for evaluating a useful signal originating from a proximity sensor |
Nov. 15, 2005 |
| 6958469 |
Diffraction grating interference system encoder for detecting displacement information |
Oct. 25, 2005 |
| 6946980 |
Input device |
Sep. 20, 2005 |
| 6927388 |
Optical encoder |
Aug. 9, 2005 |
| 6875977 |
Optoelectronic keypad and method for controlling an optoelectronic keypad |
Apr. 5, 2005 |
| 6833825 |
Apparatus for remotely controlling a digital processing system |
Dec. 21, 2004 |
| 6809661 |
Keypad device |
Oct. 26, 2004 |
| 6806815 |
Keypad structure with inverted domes |
Oct. 19, 2004 |
| 6741189 |
Keypad having optical waveguides |
May. 25, 2004 |
| 6705783 |
Ruggedized keyboard with cursor positioning device |
Mar. 16, 2004 |
| 6696987 |
Electronic device with illuminated operator button, the activation of said operator buttons being determined by detection of the change in the luminous reflectance |
Feb. 24, 2004 |
| 6603115 |
Measurement scale and system incorporating a measurement scale for determining absolute position |
Aug. 5, 2003 |
| 6552717 |
OHAI technology user interface |
Apr. 22, 2003 |
| 6535145 |
Ideographic keyboard and method |
Mar. 18, 2003 |
| 6529150 |
Photonic analog to digital conversion based on temporal and spatial oversampling techniques |
Mar. 4, 2003 |
| 6525677 |
Method and apparatus for an optical laser keypad |
Feb. 25, 2003 |
| 6501012 |
Musical apparatus using multiple light beams to control musical tone signals |
Dec. 31, 2002 |
| 6466200 |
Computer input device |
Oct. 15, 2002 |
| 6392224 |
Scanning unit for an optical position measuring device |
May. 21, 2002 |
| 6369800 |
Method and apparatus for use with a keypad of an electronic device |
Apr. 9, 2002 |
| 6313460 |
Optical encoder for detecting rotary and linear movements |
Nov. 6, 2001 |
| 6232593 |
Optical encoder |
May. 15, 2001 |
| 6222527 |
Compact key structure |
Apr. 24, 2001 |
| 6218967 |
Arrangement for the optical remote control of apparatus |
Apr. 17, 2001 |
| 6130425 |
Rotating detecting device of multi-rotation body |
Oct. 10, 2000 |
| 6107621 |
Modular encoder and method of manufacturing the same |
Aug. 22, 2000 |
| 5998727 |
Musical apparatus using multiple light beams to control musical tone signals |
Dec. 7, 1999 |
| 5909210 |
Keyboard-compatible optical determination of object's position |
Jun. 1, 1999 |
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