ALEXANDRIA, Va., July 7 -- United States Patent no. 12,676,648, issued on July 7, was assigned to SAMSUNG ELECTRONICS Co. Ltd. (Suwon-si, South Korea).

"Apparatus and method for channel sounding" was invented by Eunsung Jeon (Suwon-si, South Korea) and Hunmin Shin (Suwon-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is an operating method of a first device communicating with a second device in a wireless local area network (WLAN) system, the WLAN system including the first device and the second device, and the method including estimating channels corresponding to a plurality of subcarriers using a null data packet (NDP) received from the second device to obtain estimated channels, g...