Registers – Coded record sensors – Particular sensor structure
Patent
1996-01-11
1997-04-01
Shepperd, John
Registers
Coded record sensors
Particular sensor structure
G06K 710
Patent
active
056169086
ABSTRACT:
Disclosed is a fully automatic bar code symbol reading system having an hand-supportable laser bar code reading device The system has a number of operative states including, an object detection state, bar code presence detection state and a bar code symbol decoding state. During bar code symbol presence detection state, the visible laser scanning beam produced from the hand-supportable device flickers at a rate which improves the visual conspicuousness of the laser scanning beam in the scan field. The flicker characteristics of the laser scanning beam makes it substantially easier for the user to visually align the laser scanning beam with the bar code symbol on the detected object. Consequently, reading bar code symbols is made substantially easier using the automatic laser bar code symbol reading device of the present invention.
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Knowles Carl H.
Naylor Charles A.
Rockstein George B.
Wilz David M.
Metrologic Instruments Inc.
Shepperd John
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