Bar code scanner with automatic de-activation of scan upon bar c

Details Bar code scanner with automatic de-activation of scan upon bar c Bar code scanner with automatic de-activation of scan upon bar c

1991-10-24

1993-01-19

Shepperd, John W.

Registers

Coded record sensors

Particular sensor structure

235472, G06K 710

Patent

active

051809044

ABSTRACT:
A bar code scanner employs a light source such as a laser for generating a light beam to be directed along a path toward a bar code symbol to be read. A scanner such as a mirror driven by a motor moves the light beam along a scan line across the bar code symbol. A sensor detects the intensity of reflected light from the bar code symbol, and generates an electrical signal in response to this reflected light. A signal processor receives the electrical signal and produces a digitized signal representing the bar code symbol. Control circuit automatically de-energes the scan by shutting off at least one of the light source and the motor after the signal processor has produced a digitized signal representing a valid bar code symbol.

REFERENCES:
patent: 3474234 (1969-10-01), Rieger et al.
patent: 4387297 (1983-06-01), Swartz et al.
patent: 4758717 (1988-07-01), Shepard et al.

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