ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,537,985, issued on Jan. 27, was assigned to Huawei Technologies Co. Ltd. (Shenzhen, China).
"Data transmission method and apparatus" was invented by Zhijian Liang (Beijing), Zhigui Wei (Shenzhen, China) and Mengfu Wang (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to data transmission methods and apparatuses. In one example method, a source device performs identity authentication on and negotiate a key with a transmission device that needs to output audio-video data or perform transformation processing on a transmission path to a sink device, and generates a key distribution packet used to encrypt or decrypt an ...