ALEXANDRIA, Va., June 5 -- United States Patent no. 12,278,698, issued on April 15, was assigned to Nanjing Silergy Micro Technology Co. Ltd. (Nanjing, China).

"Bluetooth adaptive rate selection method and Bluetooth communication module" was invented by Zhongjie Sun (Nanjing, China) and Jiajie Fu (Nanjing, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A Bluetooth adaptive rate selection method can include: enabling the first Bluetooth module in the local device and the second Bluetooth module in a peer device to be in a connection state; in a first time period, obtaining RSSI of the radio frequency signal sent by the second Bluetooth module and received by the first Bluetooth module, and PER of the da...