ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,445,204, issued on Oct. 14, was assigned to The Boeing Co. (Arlington, Va.).
"Communications without power transmission" was invented by Nathan D. Hiller (Irvine, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A net zero power communications system comprising a laser beam generator, a black body, a cooled cavity, an optical absorber in the cooled cavity, and a controller. The controller is configured to identify information for transmission. The controller is configured to control the laser beam generator to emit laser beam pulses at the optical absorber layer that changes a temperature of the optical absorber layer with a pattern that causes the...