ALEXANDRIA, Va., June 6 -- United States Patent no. 12,284,048, issued on April 22, was assigned to Amazon Technologies Inc. (Seattle).

"Automatic signal composition for media conferences" was invented by Siddhartha Shankara Rao (Seattle), Michael Klingbeil (North Haven, Conn.), Arvindh Krishnaswamy (Palo Alto, Calif.) and John Joseph Dunne (Bremertom, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Implementations for compositing two input signals to form a higher quality signal are described. A first input signal is received from a first input device and a second input signal is received from a second input device. The first input signal and the second input signal are combined into a composite input ...