Ralph A Simon

20020063202, May 30, 2002

Sep 26, 2001

09/965361

Ralph Simon - Cupertino CA, US
Thierry Hernoult - Cupertino CA, US
Livio Lascu - Sunnyvale CA, US

G01D005/34

250/231130

A multiple state opto-electronic switch, having at least three states, includes a moveable member operable to move over a plurality of discrete positions. The moveable member has a plurality of radiation modulating segments from which a plurality of groups are defined. An emitting source is operable to emit radiation. A plurality of detectors, sensitive to the radiation, are each mounted proximate and in fixed position relative to motion of the movable member. Each of the plurality of discrete positions corresponds to a respective mapping between the plurality of detectors and a selected group of the radiation modulating segments. Each group of radiation modulating segments controls the radiation passing from the emitting source to each of the detectors. The plurality of detectors thereby generates a set of output signals responsive to a position of the moveable member.

20020104888, Aug 8, 2002

Mar 22, 2001

09/816741

Ralph Simon - Cupertino CA, US
Thierry Hernoult - Cupertino CA, US
Livio Lascu - Sunnyvale CA, US
Spiro Zefferys - Glendale AZ, US
David Silverglate - Santa Cruz CA, US

G06K007/10

235/472030

A system for reading encoded information includes a housing that has an aperture formed therein, a radiation source mounted within the housing that is used for emitting radiation through the aperture, and a radiation detector mounted within the housing that is used to receive radiation reflected back through the aperture. The radiation source can be an infrared light-emitting diode (LED), and the radiation detector can be a semiconductor sensor. A method for reading encoded information includes emitting infrared light onto the encoded information, receiving the infrared light that has been reflected off the encoded information, and producing an electrical signal that represents the received infrared light.