Bar code scanner with laser power down feature

Details Bar code scanner with laser power down feature Bar code scanner with laser power down feature

1996-10-04

1999-04-20

Gross, Anita Pellmann

Registers

Coded record sensors

Particular sensor structure

235455, G06K 1900

Patent

active

058959084

ABSTRACT:
A proximity sensor receives light beams reflected from a goods. A proximity sensor control unit determines that the goods exists when a light quantity of the reflected light received by the proximity sensor exceeds a determination threshold value. The determination threshold value increases as elapsed time since the bar code was read last time becomes longer, and, as a result, a detection sensitivity decreases. A CPU restores a duty of irradiation of the laser beam back to 100% and resumes rotations of a motor for driving an operation optical system when the proximity sensor control unit determines that the goods exists.

REFERENCES:
patent: 5309962 (1994-05-01), Havens et al.
patent: 5426288 (1995-06-01), Obata et al.
patent: 5481096 (1996-01-01), Hippenmeyer et al.
patent: 5528022 (1996-06-01), Nakazawa
patent: 5581094 (1996-12-01), Hara et al.
patent: 5602891 (1997-02-01), Kawai et al.
patent: 5616908 (1997-04-01), Witz et al.
patent: 5648650 (1997-07-01), Sugifune et al.
patent: 5677523 (1997-10-01), Coleman
patent: 5724458 (1998-03-01), Katoh et al.

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