초록 ▼

Apparatus 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 cou

Apparatus 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.

대표청구항 ▼

[ We claim:] [1.] A system for reading barcode symbols or the like, comprising scanning means for generating a laser beam directed toward a target producing a narrow-angled or spot laser beam that enables the user to manually aim and direct the beam to the location desired by the user and a wide-ang

[ We claim:] [1.] A system for reading barcode symbols or the like, comprising scanning means for generating a laser beam directed toward a target producing a narrow-angled or spot laser beam that enables the user to manually aim and direct the beam to the location desired by the user and a wide-angled laser beam that sweeps an entire symbol to be read, scanning means moves said laser beam on a first scan path to produce the narrow-angled or spot beam, and on a second scan path with a wide-angled beam when reading the symbol, and detection means for receiving reflected light from such symbol to produce electrical signals corresponding to data represented by such symbol.