Registers – Coded record sensors – Particular sensor structure
Patent
1980-06-26
1981-12-29
Robinson, Thomas A.
Registers
Coded record sensors
Particular sensor structure
3401463Z, G06K 714, G08C 906
Patent
active
043084559
ABSTRACT:
A method for reading bar-coded labels by taking ratios of successive bars and spaces, then discriminating and categorizing the ratios of one of four possibilities. This output is combined and decoded into characters using a read-only-memory. The characters along with information on spacing between the characters is then passed to a microprocessor. The microprocessor decides which of the characters are valid and assembles a complete scans worth of information by making use of the data relating to the separation between characters. Handling the data in this fashion provides a means to assemble data from partial scans of the label into one complete scan.
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Bullis David C.
Montross Alan G.
E. I. Du Pont de Nemours and Company
Robinson Thomas A.
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