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. 19, 2026
Filed:
Jun. 28, 2023
Texas Instruments Incorporated, Dallas, TX (US);
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Abstract
Techniques are described herein for air quality sensing. In some examples, the techniques are implemented as an apparatus including first and second light sources, a light detector having a detector output, and a processing circuit having a processing input coupled to the detector output and a processing output. The first light source is configured to generate a first light signal having a first wavelength. The second light source is configured to generate a second light signal having a second wavelength different from the first wavelength. The light detector is configured to generate a first detection signal at the detector output responsive to the first light signal and a second detection signal at the detector output responsive to the second light signal. The processing circuit is configured to generate a third signal representative of an air quality measurement at the processing output responsive to the first and second detection signals.