ALEXANDRIA, Va., June 12 -- United States Patent no. 12,299,661, issued on May 13, was assigned to Block Inc. (Oakland, Calif.).
"Controlling processor's access to interface device" was invented by Cory Douthat (San Francisco), Jason Binder (San Francisco), Matthew Maibach (San Francisco) and Thomas Byrne (Oakland, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A point of sale (POS) device includes an output device such as a speaker, a display screen, or a network interface. The POS device also includes a secure enclosure housing a secure processor and tamper detection circuitry for detecting attempts to tamper with the secure enclosure. Use of the output device is shared between the secure processor ...