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. 11, 2025
Filed:
Dec. 02, 2020
Melexis Technologies NV, Tessenderlo, BE;
Andreas Ott, Erfurt, DE;
Melexis Technologies NV, Tessenderlo, BE;
Abstract
An optical range calculation apparatus () comprises a light source configured to emit light in accordance with an indirect time of flight measurement technique. A photonic mixer cell () is configured to generate and store a plurality of electrical output signals respectively corresponding to a plurality of predetermined phase offset values applied () in accordance with the indirect time of flight measurement technique. A signal processing circuit () is configured to process the plurality of electrical output signals in accordance with the indirect time of flight measurement technique in order to calculate a measurement vector and a measured phase angle from the measurement vector. The signal processing circuit () is configured to calculate a phase angle correction value using reference illumination data and to apply the calculated phase angle correction value in order to correct the measured phase angle, and the signal processing circuit is configured to calculate a range using the corrected measured phase angle.