US Patent Issued to Shenzhen Cangoon Technology on April 1 for "Method and system for acoustic indoor positioning based on CDMA" (Chinese Inventors)

ALEXANDRIA, Va., April 2 -- United States Patent no. 12,265,166, issued on April 1, was assigned to Shenzhen Cangoon Technology Co. Ltd (Shenzhen, China).

"Method and system for acoustic indoor positioning based on CDMA" was invented by Feng Ye (Shenzhen, China) and Jian Dai (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention discloses a method for acoustic indoor positioning based on CDMA, which comprises: generating a BPSK signal; The BPSK signal was detected, the collected signal was de-carrierized and low-pass filtered, and then the data was down-sampled to the design code rate, and then the coarse position of the identification code was determined by the prefix code. Finally, t...