Optical code reader having a controllable amplifier and methods therefor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Sep 19, 2000
Grant Date -
N/A
app pub date -
Jun 17, 1998
filing date -
Jun 17, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An amplifier has an input responsive to an optical detector. A comparator is responsive to an output of the amplifier. A data communication circuit is responsive to the comparator. An optical emitter is responsive to the data communication circuit. A multi-bit analog-to-digital converter is responsive to the output of the amplifier. A processor reads a sample from the multi-bit analog-to-digital converter while the optical emitter is cooperating with the data communication circuit to transmit a message. The processor applies a signal to a control input of the amplifier in response to determining that the sample is beyond a threshold.
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