3Hi-DIGITAL Models Provide A New Level of Reading Performance
New Decoding Process Provides Unrivaled Reading Performance
Controls the waveform of the received beam to set its amplitude to
a level suitable for reading.
[Accurately detects the points of alternation between bars and spaces]
Acquires the received beam waveform in 10-bit gradations and applies differentiation (shown in waveform diagram on left).
Removes the noise components—signals not relevant to the code information such as faint printing and background patterns.
Detects the points of alternation between bars and spaces (edges).
[Modifies the narrow/wide ratio to enable accurate decoding]
Identifies bars and spaces from extracted edges. RPM! adjusts the narrow/ wide ratio to eliminate the negative impact of running print ink and reader mounting angle.
Problem: Spaces are extremely narrow
Thick print lines prevented adequate space between bars, forcing the reader to move to the next bar without obtaining the proper amplitude.
3Hi-Digital models use noise reduction and edge detection to recognise the difference between spaces and faint printing, enabling accurate decoding.
Problem: Drop in received beam intensity, bar ratio variations
When reading from an angle, previous models couldn't receive adequate beam intensity, and barcode recognition failed.
3Hi-Digital models reliably detect edges to recognise barcodes, and use RPM! to compensate for bar width ratio variations created by tilted orientations.