US Patent Issued to Hand Held Products on Aug. 12 for "Methods, apparatuses, and systems for detecting printing defects and contaminated components of a printer" (Singaporean, American Inventors)

ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,388,937, issued on Aug. 12, was assigned to Hand Held Products Inc. (Charlotte, N.C.).

"Methods, apparatuses, and systems for detecting printing defects and contaminated components of a printer" was invented by Sebastien D'Armancourt (Singapore), Thomas Axel Jonas Celinder (Singapore), H Sprague Ackley (Seattle) and Glenn David Aspenns (Cincinnati).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for printing defect detection includes processing and analyzing a difference image obtained by comparing an image scanned with a verifier to a reference image. The detected defects are grouped, and the grouping is refined. Confidence level values are then...