High density matrix code
First Claim
1. A machine-readable code comprising a plurality of dots arranged in rows and columns in x and y directions to form a pattern representing characters in the Y direction and conveying information by presence or absence of a dot at a specific location, said pattern of dots being repeated in the Y direction for reading in a manner wherein the field of view of reading the pattern in the Y direction is less than the repeated pattern for a character.
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Abstract
A machine-readable matrix-type code has either repeated or non-repeated dot patterns in one direction representing digital characters which are read by a sensor moved in a direction which is generally normal to the patterns. The patterns of the code may be formed in a manner wherein the sensor views a portion of repeated patterns, or the code may be of lesser magnitude wherein the entire non-repeated pattern area is covered by the field of view of the sensor.
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Citations
8 Claims
- 1. A machine-readable code comprising a plurality of dots arranged in rows and columns in x and y directions to form a pattern representing characters in the Y direction and conveying information by presence or absence of a dot at a specific location, said pattern of dots being repeated in the Y direction for reading in a manner wherein the field of view of reading the pattern in the Y direction is less than the repeated pattern for a character.
- 4. A machine-readable high-density information printed code comprising a plurality of blocks of dots arranged in rows and columns in X and Y directions to form a pattern by means of parallel columns of dots representing characters in the Y direction and conveying information by presence or absence of a dot at a specific location, said blocks of dots being repeated in the Y direction for reading in a manner wherein the field of view of reading the blocks in the Y direction is less than the repeated blocks of dots for the characters.
Specification