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US5563399A
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Bar code decoding with dynamically loadable data character sets
Assignee: Symbol Technologies LLC
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Filing: 1995-10-02
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Granted: 1996-10-08
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Expires: 2015-10-02
Abstract
Abstract The reading and decoding of two-dimensional bar codes and other dataforms are simplified and field loading of different data character sets is enabled. Dynamic loading of new data character sets fully or partially superseding a factory installed default character set correlation listing is enabled by use of loadable correlation listings keyed to foreign language characters, symbols, words or phrases relevant to particular applications. The loadable correlation listings can be encoded into a two-dimensional bar code and loaded via a reading of the bar code by the bar code reader. Two or more correlation listings may be loaded into a bar code reader, with one of the correlation listings selected for decoding a particular bar code.
Inventors
- 👤 Ynjiun P. Wang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:11
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/10; G06K7/14; G06K7/1404; G06K7/1408; G06K7/1417
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
116 words
A method of decoding a 2-D bar code in a bar code reader, comprising the steps of: (a) loading into said bar code reader, prior to step (e), a loadable correlation listing correlating decoded values of bar/space patterns to corresponding data characters; (b) reading a plurality of bar/space patterns of said 2-D bar code; (c) utilizing the results of step (b) to provide a decoded value for one said bar/space pattern; (d) repeating step (c) for other bar/space patterns of said bar code to provide decoded values thereof; and (e) utilizing said correlation listing to correlate each of a plurality of said decoded values as provided in steps (c) and (d) to a corresponding data character.
Claim 2
Independent Claim
116 words
A method of decoding a 2-D bar code in a bar code reader, comprising the steps of: (a) loading into said bar code reader, prior to step (e), a loadable correlation listing correlating decoded values of bar/space patterns to corresponding data characters; (b) reading a plurality of bar/space patterns of said 2-D bar code; (c) utilizing the results of step (b) to provide a decoded value for one said bar/space pattern; (d) repeating step (c) for other bar/space patterns of said bar code to provide decoded values thereof; and (e) utilizing said correlation listing to correlate each of a plurality of said decoded values as provided in steps (c) and (d) to a corresponding data character.
Claim 3
Dependent Claim
52 words
A method as in claim 1, wherein step (e) comprises: (e) selectively utilizing one of said loadable correlation listing and a default correlation listing available in said bar code reader, to correlate each of a plurality of said decoded values as provided in steps (c) and (d) to a corresponding data character.
Claim 4
Dependent Claim
29 words
A method as in claim 1, wherein step (a) comprises loading said loadable correlation listing by reading a 2-D bar code containing said loadable correlation listing in encoded form.
Claim 5
Dependent Claim
53 words
A method as in claim 1, wherein step (a) comprises loading a plurality of said loadable correlation listings and step (e) comprises: (e) selectively utilizing one of said loadable correlation listings to correlate each of a plurality of said decoded values as provided in steps (c) and (d) to a corresponding data character.
Claim 6
Dependent Claim
29 words
A method as in claim 4, wherein step (a) comprises loading said loadable correlation listings by reading a 2-D bar code containing said loadable correlation listings in encoded form.
Claim 7
Dependent Claim
51 words
A method as in claim 1, wherein said bar code comprises data bar/space patterns representative of data characters and instruction bar/space patterns representative of information relating to said data bar/space patterns, and step (e) is performed only with respect to a plurality of decoded values provided from said data bar/space patterns.
Claim 8
Dependent Claim
43 words
A method as in claim 6, additionally including the following step between steps (d) and (e): (x) utilizing decoded values of said instruction bar/space patterns to provide information used to control the processing of said data bar/space patterns in said bar code reader.
Claim 9
Independent Claim
84 words
A method of decoding a 2-D dataform in a dataform reader, comprising the steps of: (a) reading a 2-D dataform containing a loadable correlation listing to load into said dataform reader, prior to step (c), a loadable correlation listing correlating bar/space patterns to corresponding data characters; (b) reading a plurality of bar/space patterns of said 2-D dataform; and (c) utilizing the results of step (b) and said correlation listing to correlate each of a plurality of said bar/space patterns to a corresponding data character.
Claim 10
Independent Claim
84 words
A method of decoding a 2-D dataform in a dataform reader, comprising the steps of: (a) reading a 2-D dataform containing a loadable correlation listing to load into said dataform reader, prior to step (c), a loadable correlation listing correlating bar/space patterns to corresponding data characters; (b) reading a plurality of bar/space patterns of said 2-D dataform; and (c) utilizing the results of step (b) and said correlation listing to correlate each of a plurality of said bar/space patterns to a corresponding data character.
Claim 11
Dependent Claim
51 words
A method as in claim 8, wherein step (c) comprises: (c) utilizing the results of step (b) and a selected one of said loadable correlation listing and a default correlation listing available in said dataform reader, to correlate each of a plurality of said bar/space patterns to a corresponding data character.
Claim 12
Dependent Claim
50 words
A method as in claim 8, wherein said dataform comprises data bar/space patterns representative of data characters and instruction bar/space patterns representative of information relating to said data bar/space patterns, and step (c) is performed only with respect to a plurality of decoded values provided from said data bar/space patterns.
Claim 13
Independent Claim
80 words
A method of decoding a 2-D dataform in a dataform reader, comprising the steps of: (a) loading into said dataform reader, prior to step (c), a plurality of correlation listings, each correlating bar/space patterns to corresponding data characters; (b) reading a plurality of bar/space patterns of said 2-D dataform; and (c) utilizing the results of step (b) and a selected one of said correlation listings to correlate each of a plurality of said bar/space patterns to a corresponding data character.
Claim 14
Independent Claim
80 words
A method of decoding a 2-D dataform in a dataform reader, comprising the steps of: (a) loading into said dataform reader, prior to step (c), a plurality of correlation listings, each correlating bar/space patterns to corresponding data characters; (b) reading a plurality of bar/space patterns of said 2-D dataform; and (c) utilizing the results of step (b) and a selected one of said correlation listings to correlate each of a plurality of said bar/space patterns to a corresponding data character.
Claim 15
Dependent Claim
36 words
A method as in claim 11, wherein step (a) comprises loading at least one of said correlation listings as a loadable correlation listing by reading a 2-D dataform containing said loadable correlation listing in encoded form.
Claim 16
Dependent Claim
37 words
A method as in claim 11, wherein step (a) comprises providing one of said correlation listings as a loadable correlation listing and one of said correlation listings as a default correlation listing stored in said dataform reader.
Claim 17
Dependent Claim
28 words
A method as in claim 13, wherein step (a) comprises loading said loadable correlation listing by reading a 2-D dataform containing said loadable correlation listing in encoded form.
Claim 18
Dependent Claim
51 words
A method as in claim 11, wherein said 2-D dataform comprises data bar/space patterns representative of data characters and instruction bar/space patterns representative of information relating to said data bar/space patterns, and step (c) is performed only with respect to a plurality of decoded values provided from said data bar/space patterns.
References Cited (Backward Citations)
US5455414A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-10-08 | 2000-04-08 | 2000-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-10-08 | 2004-04-08 | 2004-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-10-08 | 2008-04-08 | 2008-10-08 | $7700.00 | Window Closed / Lapsed |