ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,532,395, issued on Jan. 20.

"Resistor mapping for device profiles" was invented by Karl S. Jonsson (Rancho Santa Margarita, Calif.) and Miles A Hill (Boulder, Colo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A power sourcing device measures a resistance between the "A" pairs of an Ethernet cable to determine a first signature resistance value and uses the first signature resistance value to determine whether the device is able to receive power over the Ethernet cable in a manner compliant with the IEEE Power over Ethernet standard. In response to determining that the device can receive power over the Ethernet cable compliant with the standard, the p...