Registers – Coded record sensors – Particular sensor structure
Patent
1990-11-07
1992-08-25
Trafton, David
Registers
Coded record sensors
Particular sensor structure
235436, 235463, G06K 710
Patent
active
051421305
ABSTRACT:
A bar code reading system produces a binary signal from an analog signal containing a bar code signal, and demodulates the binary signal into numerals. The bar code reading system includes an amplitude increase detector for detecting when the amplitude of the analog signal steeply changes, and a sequence controller for controlling an output of a demodulator that demodulates the binary signal into numerals. When the amplitude increase detector provides a detected signal, the sequence controller carries out its controlling task as if the bar code has a normal white margin, even if the white margin produces noise. This system correctly recognizes the start of the bar code irrespective of noise and enables a lower limit level thereof to be lowered.
REFERENCES:
patent: 3986000 (1976-10-01), McJohnson
patent: 4667089 (1987-05-01), Shirakabe et al.
patent: 5036183 (1991-07-01), Ouchi et al.
Patent Abstracts of Japan, vol. 10, No. 237 (P-487)(2293), Aug. 15, 1986 & JP-A-61 68675 (Tokyo Electric Co., Ltd.) Apr. 9, 1986.
Patent Abstracts of Japan, vol. 6, No. 237 (P-157)(1115), Nov. 25, 1982; & JP-A-57 136280 (Fujitsu K.K.), Aug. 23, 1982.
Fujitsu Limited
Trafton David
LandOfFree
Bar code reading system and bar code reading apparatus with star does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bar code reading system and bar code reading apparatus with star, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bar code reading system and bar code reading apparatus with star will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-386772