Registers – Coded record sensors – Particular sensor structure
Patent
1997-08-13
1998-10-13
Pitts, Harold
Registers
Coded record sensors
Particular sensor structure
235413, 235466, G06K 7110
Patent
active
058215204
ABSTRACT:
A system for processing output signals of an electro-optical scanner adapted for reading a bar code indicia having parts of different light reflectivity and non bar code indicia adjacent the bar code on an article being scanned comprises a decoder for decoding content of signals input thereto and signal processing circuitry for receiving the scanner output signals and generating input signals for input to the decoder by deleting signals having non bar code indicia content from the received scanner output signals by examining characteristics of the received scanner output signals. The signal processing circuitry is adapted to generate input signals for input to the decoder for bar code indicia of respective different bar code symbologies. The signal processing circuitry includes deletion circuitry for deleting, from the received scanner output signals, signals having less time duration than a predetermined time duration. The signal processing circuitry also includes one or both of first ratio computation means for computing a ratio of characteristics of adjacent of the received scanner output signals and second ratio computation means for computing a ratio of characteristics of non-adjacent of the received scanner output signals.
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Boehm Thomas
Brown Daniel
Fama Anthony
Mulla Altaf
Sackett William
Pitts Harold
Symbol Technologies Inc.
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