ALEXANDRIA, Va., May 19 -- United States Patent no. 12,634,624, issued on May 19, was assigned to AAC Microtech (Changzhou) Co. Ltd. (Changzhou City, China).
"Speaker and rollable electronic device" was invented by Huhu Yang (Shenzhen, China), Wei Wei (Shenzhen, China) and Zhaoyu Yin (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A speaker and a rollable electronic device include a housing defining an accommodating cavity, a speaker structure arranged in the accommodating cavity, and an inverter tube arranged on the housing. A first sound outlet hole and a communicating hole are respectively in a first side wall and a second side wall of the accommodating cavity. The first side wall is conne...