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Class Information
Number: 235/494
Name: Registers > Records > Particular code pattern
Description: Subject matter wherein different items of information are represented by particular shaped patterns or arrangements of such patterns.










Patents under this class:

Patent Number Title Of Patent Date Issued
5777309 Method and apparatus for locating and decoding machine-readable symbols Jul. 7, 1998
5767498 Bar code error scanner Jun. 16, 1998
5760384 Information storage medium and method for detecting forgeries Jun. 2, 1998
5761301 Mark forming apparatus, method of forming laser mark on optical disk, reproducing apparatus, optical disk and method of producing optical disk Jun. 2, 1998
5747823 Two-dimensional code mark detecting method and apparatus therefor May. 5, 1998
5740276 Holographic method for encrypting and decrypting information using a fingerprint Apr. 14, 1998
5734752 Digital watermarking using stochastic screen patterns Mar. 31, 1998
5731574 Digital postage indicia verification for inserting system Mar. 24, 1998
5726435 Optically readable two-dimensional code and method and apparatus using the same Mar. 10, 1998
5719384 Oblique access to image data for reading dataforms Feb. 17, 1998
5717197 Tiled embedded data block-types for generic embedded data block systems Feb. 10, 1998
5714748 Magnetic cards employing optical recording material Feb. 3, 1998
5712473 Prepaid card Jan. 27, 1998
5710420 Method for embedding and recovering machine-readable information Jan. 20, 1998
5710636 Method and apparatus for generating halftone images having human readable patterns formed therein Jan. 20, 1998
5706099 Method and apparatus for generating serpentine halftone images Jan. 6, 1998
5700998 Drug coding and delivery system Dec. 23, 1997
5694102 Vector reconstruction of asynchronously captured tiled embedded data blocks Dec. 2, 1997
5691527 Two dimensional code reading apparatus Nov. 25, 1997
5691773 Anti-hand-jittering dataform readers and methods Nov. 25, 1997
5686715 Add-on bar-code reading apparatus in a bar-code reader Nov. 11, 1997
5686718 Recording method, decoding method, and decoding apparatus for digital information Nov. 11, 1997
5677522 Method and apparatus for non-contact reading of a relief pattern Oct. 14, 1997
5675136 Optoelectric device for the recognition of contrast marks Oct. 7, 1997
5671202 Apparatus and method for data security in an optical disk storage system Sep. 23, 1997
5668608 Motion vector estimation method and apparatus for use in an image signal encoding system Sep. 16, 1997
5655395 Card for a pledge lock Aug. 12, 1997
5637849 Maxicode data extraction using spatial domain features Jun. 10, 1997
5636292 Steganography methods employing embedded calibration data Jun. 3, 1997
5635694 System and method for embedding machine coded destination information into a postal mark Jun. 3, 1997
5627900 Optical data cards for operating sound synthesizer system May. 6, 1997
5621515 Identification system using regions of predetermined properties interspersed among regions of other properties Apr. 15, 1997
5612524 Identification symbol system and method with orientation mechanism Mar. 18, 1997
5602382 Mail piece bar code having a data content identifier Feb. 11, 1997
5591956 Two dimensional data encoding structure and symbology for use with optical readers Jan. 7, 1997
5591957 Apparatus for reading mesh pattern image data having bars along upper and lower sides of mesh pattern and a boundary line between horizontally adjacent dark and light area of mesh pattern Jan. 7, 1997
5576528 Color processing for bar code symbol compaction Nov. 19, 1996
5576532 Interleaved and interlaced sync codes and address codes for self-clocking glyph codes Nov. 19, 1996
5572009 Method for encoding a machine-readable measurement scale Nov. 5, 1996
5572010 Distributed type labeling for embedded data blocks Nov. 5, 1996
5568555 Multi-color information encoding system Oct. 22, 1996
5563401 Bar codes and methods Oct. 8, 1996
5563955 Apparatus and/or method for recognizing printed data in an image Oct. 8, 1996
5554841 Article marker and decoding method Sep. 10, 1996
5554842 Luminescent facing marks for enhanced postal indicia discrimination Sep. 10, 1996
5552591 Presence/absence bar code Sep. 3, 1996
5552593 Template or reticule for quality control of a hexagonal code having an acquisition target and an alignment target Sep. 3, 1996
5550363 Optical information reading apparatus Aug. 27, 1996
5548110 Optical error-detecting, error-correcting and other coding and processing, particularly for bar codes, and applications therefor such as counterfeit detection Aug. 20, 1996
5545890 Apparatus and method for storing and reading data Aug. 13, 1996











 
 
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