ALEXANDRIA, Va., March 24 -- United States Patent no. 12,585,903, issued on March 24, was assigned to Apple Inc. (Cupertino, Calif.).
"Proof of presence using machine-readable codes" was invented by Bennet Daniel Gnanarajan (Singapore) and Sachin Kapoor (San Jose, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Techniques are disclosed for confirming proof-of-presence of a user device using machine-readable codes. A server device can initiate a data exchange session with a terminal device. While in the data exchange session, the server device can send first information usable to generate a machine-readable code at the terminal device. The server device can then receive an indication that the user devic...