Optical code reader including circuitry for processing the read

Details Optical code reader including circuitry for processing the read Optical code reader including circuitry for processing the read

1998-06-17

2000-10-03

Hajec, Donald

Registers

Coded record sensors

Particular sensor structure

23546216, 23546218, 23546245, 23547201, G06K 710

Patent

active

061260754

ABSTRACT:
An amplifier has an input responsive to an optical detector. An analog-to-digital converter is responsive to an output of the amplifier. A processor activates an optical emitter, and reads a first sample from the analog-to-digital converter. Upon determining that the first sample is less than a first threshold, the processor applies a first signal to a control input of the amplifier for a first duration. The processor reads a second sample from the analog-to-digital converter. Upon determining that the second sample is greater than a second threshold, the processor applies a second signal to the control input for a second duration less than the first duration.

REFERENCES:
patent: 4387297 (1983-06-01), Swartz et al.
patent: 4575625 (1986-03-01), Knowles
patent: 4933538 (1990-06-01), Heiman et al.
patent: 5142550 (1992-08-01), Tymes
patent: 5591953 (1997-01-01), Rockstein et al.
patent: 5602379 (1997-02-01), Uchimura et al.
patent: 5629733 (1997-05-01), Youman et al.
patent: 5640193 (1997-06-01), Wellner
patent: 5664110 (1997-09-01), Green et al.
patent: 5819241 (1998-10-01), Reiter
patent: 5869819 (1999-02-01), Knowles et al.
patent: 5905248 (1999-05-01), Russell et al.
patent: 5905251 (1999-05-01), Knowles
patent: 5918214 (1999-06-01), Perkowski
Zuckerman, "It's a Brand New E-Mail, Companies Want to Turn Computers into Postage Meters", The New York Times, Monday, Apr. 28, 1997.

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