Bar code scanner with RF coupling to base terminal and automatic

Details Bar code scanner with RF coupling to base terminal and automatic Bar code scanner with RF coupling to base terminal and automatic

1993-03-24

1994-06-14

Shepperd, John

Registers

Coded record sensors

Particular sensor structure

235462, G06K 710

Patent

active

053212460

ABSTRACT:
A scanning head for reading bar code symbols includes a laser source producing a beam which is scanned across a symbol to be read by a moving mirror arrangement, and a photodetector responsive to a light reflected from the symbol. The signal from the photodetector is digitized and decoded to recover bar code data. A transmitter and receiver are located in the scanning head for communication with a central computer, and a battery is included in the head as a power supply, so that the scanning head need not be connected by a cable to a terminal. A controller immediately and automatically turns off the light source and scan when an evaluation of the signal indicates that a bar code is detected.

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