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:
May. 11, 2021
Filed:
Apr. 04, 2019
Synaptics Incorporated, San Jose, CA (US);
Kirk Hargreaves, Mountain View, CA (US);
Synaptics Incorporated, San Jose, CA (US);
Abstract
A processing system for an optical sensing device may comprise receiver circuitry and a determination module. The processing system may also include drive circuitry configured to drive a light source to emit light. The receiver circuitry is coupled to a photodetector, and the receiver circuitry is configured to acquire a resulting signal from the photodetector, and generate a measurement of light received by the photodetector based on the resulting signal. The receiver circuitry includes high-pass filter circuitry configured to high-pass filter the resulting signal to generate a high-pass filtered signal based. The determination module is configured to generate a light measurement based on the high-pass filtered signal.