Bar code decoding with dynamically loadable data character sets
First Claim
1. 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.
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Accused Products
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.
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Citations
15 Claims
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1. A method of decoding a 2-D bar code in a bar code reader, comprising the steps of:
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(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. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of decoding a 2-D dataform in a dataform reader, comprising the steps of:
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(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. - View Dependent Claims (9, 10)
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11. A method of decoding a 2-D dataform in a dataform reader, comprising the steps of:
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(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. - View Dependent Claims (12, 13, 14, 15)
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Specification