ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,389,069, issued on Aug. 12, was assigned to The Nielsen Co. (US) LLC (New York).

"Detecting an operational state of a media device" was invented by Bostjan Valencic (Koper, Slovenia) and Igor Sotosek (Portoroz, Slovenia).

According to the abstract* released by the U.S. Patent & Trademark Office: "Example methods, apparatus, systems and articles of manufacture (e.g., physical storage media) to detect an operational state (such as an on/off state) of a media device are disclosed herein. Disclosed example apparatus are to monitor for activity on a first bus of an (HDMI) port of the media device. Disclosed example apparatus are also to inject a message with a first address on the first b...