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:
Feb. 24, 2026
Filed:
May. 10, 2023
Google Llc, Mountain View, CA (US);
Sachin Prakash Nadig, San Francisco, CA (US);
Isaac Chase Novet, Escondido, CA (US);
GOOGLE LLC, Mountain View, CA (US);
Abstract
A wearable computing device includes a PPG sensor that includes an emitter configured to output a light signal that is modulated with a carrier signal to generate a modulated light signal. The PPG sensor further includes one or more detectors configured to receive a first reflected light signal that is a reference signal of the modulated light signal without PPG data in the carrier signal and a second reflected light signal that is a reference signal of the modulated light signal with PPG data in the carrier signal. The wearable computing device further includes a control circuit configured to synchronously demodulate the first and second instances of the modulated light signal to obtain a first demodulated signal and a second demodulated signal, respectively. The control circuit is further configured to generate data indicative of one or more aggressors affecting the PPG data based on the first and second demodulated signals.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile