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US 7,677,457 B2Granted
System and method for decoding a barcode
AssigneeSymbol Technologies, Inc.
InventorDariusz Madej
Life of this patent
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Abstract
Described is a method and system for barcode decoding. The method comprises receiving an input signal corresponding to a reflection of light from a bar code. The input signal is divided into a predetermined number of segments. Each segment includes a plurality of samples. Each of the segments is represented using at least one of the samples therefrom. At least one sample from each segment is analyzed to determine a location the bar code within the input signal.
Claims22
A method, comprising:
- receiving an input signal corresponding to a reflection of light from a bar code;
- dividing the input signal into a predetermined number of segments, each segment including a plurality of samples;
- selecting particular samples from the plurality of samples to generate an average sample for each segment;
- comparing the average samples to a threshold value;
- identifying a sequence of consecutive average samples greater than the threshold value;
- and
- determining a location of the bar code within the input signal based on the identified sequence.
4 more elements
A system, comprising:
- a bar code scanner acquiring information from a bar code and outputting a signal corresponding to a reflection of light from the bar code;
- and
- a central processing unit (CPU) receiving the signal and dividing the signal into a predetermined number of segments, each segment including a plurality of samples, the CPU selecting particular samples from the plurality of samples to generate an average sample for each segment and comparing the average samples greater than the threshold value and determining a location of the bar code within the input signal based on the identified sequence.
Dependencies are inferred from the claim text.