US Patent Issued to QUALCOMM on Sept. 2 for "Acoustic-based positioning with dynamic frequency pilot tone" (South Korean, American Inventors)

ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,405,375, issued on Sept. 2, was assigned to QUALCOMM Inc. (San Diego).

"Acoustic-based positioning with dynamic frequency pilot tone" was invented by Kee-Hyun Park (San Diego), Mustafa Keskin (San Diego) and Sungrack Yun (Seongnam, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Aspects presented herein may enable a wireless device to dynamically change the frequencies of its pilot tones based on the distance of one or more objects detected, thereby enabling the wireless device to utilize the advantages of both high frequency pilot tone and low frequency pilot tone. In one aspect, a wireless device transmits a first pilot tone at a first freq...