Patent №
US 4,289,957
Granted
—
Owner
—
Lab
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AI components
1
vision
Assignment
None on record
Dataset
AIPD
2023_r1 edition
Application
06030796
The reading of an identification card with stroke code comprises sweeping of a control area by a laser beam, detection by photo-detectors of light reflected by the card and from the edges thereof, amplification, selection by a chronometer of the useful signal, placing of the signal into a buffer memory, and treatment by a micro-processor and an ordinator for reconstitution of a complete message by means of two successive incomplete sweeps comprising at least one upper or lower security character.