ALEXANDRIA, Va., July 30 -- United States Patent no. 12,373,381, issued on July 29, was assigned to Nanjing Qinheng Microelectronics Co. Ltd. (Nanjing, China).

"USB hub internal data transmission method and USB hub chip" was invented by Chun Han (Nanjing, China), Xiang Ouyang (Nanjing, China) and Chunhua Wang (Nanjing, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The USB HUB chip comprises at least a first USB transceiver, a second USB transceiver, a data bit insertion unit, a high-speed routing module and a re-synchronization unit before transmitting. Before a serial data valid signal is asserted, inserted data is inserted into serial data and then transmitted to the high-speed routing module, and t...