Registers – Records – Particular code pattern
Patent
1993-12-22
1995-09-12
Hajec, Donald
Registers
Records
Particular code pattern
235456, G06K 710, G06K 1906
Patent
active
054498961
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 two dimensional code field on the recording medium on centers that are spatially distributed in nominal accordance with a predetermined spatial formatting rule, where the glyphs are defined by respective symbols that are selected from a finite set of optically discriminable symbols to encode the information, and (3) at least one additional glyph pattern that is written on said recording medium in nominal accordance with the spatial formatting rule, the additional code pattern providing physical addressing information for random access from any given location within the glyph pattern to any other given location within the same glyph pattern or another glyph pattern on the same or a differnt recording medium.
REFERENCES:
patent: 5091966 (1992-02-01), Bloomberg et al.
patent: 5128525 (1992-07-01), Stearns et al.
patent: 5221833 (1993-06-01), Hecht
patent: 5245165 (1993-09-01), Zhang
Flores L. Noah
Hecht David L.
Petrie Glen W.
Webster Thomas M.
Hajec Donald
Le Thien Minh
Xerox Corporation
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