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:
Aug. 26, 2025
Filed:
May. 20, 2021
Melexis Technologies NV, Tessenderlo, BE;
Hans Van Den Broeck, Tessenderlo, BE;
Melexis Technologies NV, Tessenderlo, BE;
Abstract
In a method of optical detection, a carrier signal of a carrier signal period and a code sequence over an exposure time period are generated. Each code () of the sequence comprises a plurality of symbols () with a timing delay () in between. The carrier signal is phase shifted in response to the code sequence () depending upon a value of a symbol (). The modulated carrier signal is applied to a light source, thereby modulating the light which is emitted. An electrical sensor signal is generated in response to received reflected light. A plurality of predetermined phase offset values is applied to the modulated carrier signal, and a plurality of electrical output signals is generated and stored by applying said resulting signal to the electrical sensor signal in accordance with the indirect time of flight measurement technique over the exposure time period. Each symbol () has a duration greater than the carrier signal period.