ALEXANDRIA, Va., June 5 -- United States Patent no. 12,278,919, issued on April 15, was assigned to BEIJING HONOR DEVICE Co. LTD. (Beijing).

"Voice call method and apparatus, electronic device, and computer-readable storage medium" was invented by Zhao Yang (Beijing), Weibo Xiong (Beijing) and Song Lin (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of this application provide a voice call method and apparatus, and relate to the field of terminal technologies. The method includes: obtaining, by the first terminal device, azimuth information between the first terminal device and the second terminal device based on location information and orientation information of the first terminal devic...