The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 2026
Filed:
Nov. 29, 2022
Amazon Technologies, Inc., Seattle, WA (US);
Krishna Kamath Koteshwara, San Jose, CA (US);
Berkant Tacer, Bellevue, WA (US);
Karthik Kumar, Seattle, WA (US);
Carlos Renato Nakagawa, San Jose, CA (US);
Sai Ravi Teja Pulugurtha, Milpitas, CA (US);
Ke Sun, San Diego, CA (US);
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
Technologies directed to ambient temperature and relative humidity sensing using ultrasound signals are described. One device can emit an ultrasound signal using a speaker and measure the ultrasound signal using a microphone. The device can determine, using the ultrasound signal, a signal component corresponding to a direct propagation path (DPP) between the speaker and the microphone. The device determines, using the signal component, a first sound propagation property representing a speed of the ultrasound signal along the DPP. The device determines, using the signal component across different frequency bands, second sound propagation properties, each representing a sound attenuation of the ultrasound signal along the DPP in the respective frequency band. The device determines an ambient temperature value and a relative humidity value using a regression model based on the first sound propagation property and the second sound propagation properties.