Global addressability for self-clocking glyph codes
First Claim
1. An optically readable record for storing encoded information;
- said record comprisinga recording medium;
a self-clocking data code for encoding said information;
said data code being composed of glyphs that are written in a bounded two dimensional code field on said recording medium on centers that are spatially distributed in nominal accordance with a predetermined spatial formatting rule;
said glyphs being defined by respective symbols that are selected from a finite set of optically discriminable symbols to encode said information; and
a self-clocking address pattern written on said recording medium to extend accross said code field along at least one axis;
said address pattern being composed of a glyph pattern that disambiguates logical position within said address pattern to a subpattern precision.
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Abstract
An optically readable record for storing encoded information comprises (1) a recording medium, (2) a self-clocking data code for encoding the information, with this data code being composed of glyphs that are written in a bounded two dimensional code field on the recording medium on centers that are spatially distributed in nominal accordance with a predetermined spatial formatting rule, and the glyphs being defined by respective symbols that are selected from a finite set of optically discriminable symbols to encode the information, and (3) a self-clocking address pattern written on the recording medium to extend across the code field along at least one axis, with this address pattern being composed of a unique glyph pattern that disambiguates spatial position within the address pattern to a subpattern precision.
146 Citations
10 Claims
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1. An optically readable record for storing encoded information;
- said record comprising
a recording medium; a self-clocking data code for encoding said information;
said data code being composed of glyphs that are written in a bounded two dimensional code field on said recording medium on centers that are spatially distributed in nominal accordance with a predetermined spatial formatting rule;
said glyphs being defined by respective symbols that are selected from a finite set of optically discriminable symbols to encode said information; anda self-clocking address pattern written on said recording medium to extend accross said code field along at least one axis;
said address pattern being composed of a glyph pattern that disambiguates logical position within said address pattern to a subpattern precision. - View Dependent Claims (2, 3, 7, 8, 9, 10)
- said record comprising
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4. An optically readable record for storing encoded information;
- said record comprising
a recording medium; a self-clocking data code for encoding said information;
said data code being composed of glyphs that are written in a two dimensional code field on said recording medium on centers that are spatially distributed in nominal accordance with a predetermined spatial formatting rule;
said glyphs being defined by respective symbols that are selected from a finite set of optically discriminable symbols to encode said information; anda self-clocking address pattern written on said recording medium to extend across said code field longitudinally and transversely;
said address pattern being composed of a recognizeable glyph pattern that disambiguates logical position within said address pattern to a subpattern precision. - View Dependent Claims (5, 6)
- said record comprising
Specification