ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,217,338, issued on Feb. 4.
"Duplex card scanner lighting" was invented by Hin Leong Tan (Sunnyvale, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A card scanner includes a card support mechanism for receiving a card and a first camera. A first light source is mounted so that a first image of a first side of the card captured by the first camera reflects to the first camera so that a first bright region created by light reflected by the first side of the card from the first light source is within a first location on the first side of the card. A second light source is mounted so that a second image of the first side of the card captured by the fir...