Title:
SIGNAL PROCESSING DEVICE FOR READER TARGETED TO CODES, SIGNAL PROCESSING METHOD, AND SIGNAL PROCESSING PROGRAM
Document Type and Number:
WIPO Patent Application WO/2014/002972
Kind Code:
A1
Abstract:
Provided is a signal processing device intended to improve failure to read a barcode due to a defect of the barcode, to the manner of swiping the barcode by the sensor, or the like. The device is provided with: a variable amp for outputting an output signal that is a signal corresponding to an input signal, it being possible to adjust the offset and gain of the variable amp; a comparison means for comparing the level of the output signal to a plurality of threshold values; a detection means for detecting, on the basis of the result of comparison by the comparison means, deviation of the offset of the variable amp, excess or deficient gain of the variable amp, or both; and adjustment means for adjusting the offset, the gain, or both, of the variable amp, on the basis of the result detected by the detection means.
Inventors:
TSURUKI HIROSHI (JP)
GOTOH MASAO (JP)
SHIGEMITSU HIROSHI (JP)
TERAOKA MASATO (JP)
GOTOH MASAO (JP)
SHIGEMITSU HIROSHI (JP)
TERAOKA MASATO (JP)
Application Number:
PCT/JP2013/067305
Publication Date:
January 03, 2014
Filing Date:
June 25, 2013
Export Citation:
Assignee:
NEC INFRONTIA CORP (JP)
International Classes:
G06K7/00; G06K7/10
Foreign References:
| JPH1063768A | 1998-03-06 | |||
| JPS6459574A | 1989-03-07 |
Attorney, Agent or Firm:
NAGAI Michio et al. (JP)
Michio Nagai (JP)
Michio Nagai (JP)
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