Data with perimeter identification tag

Details Data with perimeter identification tag Data with perimeter identification tag

1991-04-22

1993-04-13

Shepperd, John

Registers

Records

Particular code pattern

235454, 382 10, G06K 1906, G06K 900

Patent

active

052025527

ABSTRACT:
An identification or data tag composed of a central set of data cells surrounded by border cells which cooperate with their adjacent data cells by contrasting therewith to form a reference perimeter defined by the inter-sections of the boundaries of the border cells with their respective adjoining data cells.

REFERENCES:
patent: 3409760 (1968-11-01), Hamisch
patent: 3808405 (1974-04-01), Johnson et al.
patent: 4004131 (1977-01-01), Oneil, Jr. et al.
patent: 4667089 (1987-05-01), Shirakabe et al.
patent: 4924078 (1990-05-01), Sant'Anselmo et al.
patent: 4939354 (1990-07-01), Priddy et al.
patent: 5053609 (1991-10-01), Priddy et al.
patent: 5101096 (1992-03-01), Ohyama et al.

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