ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,784,766, issued on Nov. 3, was assigned to Amazon Technologies Inc. (Seattle).
"Presence detection calibration" was invented by Mohammed Rana Basheer (Costa Mesa, Calif.), Krishna Kamath Koteshwara (San Jose, Calif.), Feng Zhang (Sunnyvale, Calif.), Zhen Xie (San Jose, Calif.), Trausti Thor Kristjansson (San Jose, Calif.) and Avinash Joshi (San Jose, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A system may use Wi-Fi channel state information (CSI) to configure ultrasonic presence detection (USPD) in a user device. Minor motion events in the vicinity of the user device may occur close to the noise floor of USPD such that noise transients can tri...