Inventors:
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
International Classification:
G06K007/10
Abstract:
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.