Optical data reader with control mechanism implemented...

Details Optical data reader with control mechanism implemented... Optical data reader with control mechanism implemented...

2005-07-12

2005-07-12

Do, Anh Hong (Department: 2624)

Image analysis

Image sensing

Sensor control

C382S321000

Reexamination Certificate

active

06917723

ABSTRACT:
In an optical data reader, light is aimed out through a window at objects located in front of the window, and reflections from the objects and/or the window itself are detected. The amount of detected light is compared to one or more expected levels to determine when an object is present in front of the window and/or whether the window is properly installed. The optical reader is controlled based on this determination. Control functions that may be implemented in this manner include, for example, waking up the data reader when an object is detected in front of the glass, and disabling the data reader if the window is removed.

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