Label find method and circuit
Method for controlling the operation of an optical scanner
Method of inhibiting processing of duplicative coded label signals
Method and apparatus for bar code data autodiscrimination Patent #: 4782220
AbstractApparatus for reading bar code symbols including a laser light source, an optical component for scanning a reference plane, and a sensor for detecting the light of variable intensity reflected from the target. A processor determines whether the reflected light represents a spatial variation that could represent a bar code and generates an enabling signal and a controller is provided for modifying the light beam in response to the enabling signal.