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:
Apr. 05, 2022
Filed:
Jun. 12, 2018
Ams Ag, Premstaetten, AT;
Josef Kriebernegg, Premstaetten, AT;
Chandra Nyshadham, Premstaetten, AT;
Rahul Thottathil, Premstaetten, AT;
Hafeez Koonari Thoombath, Premstaetten, AT;
AMS AG, Premstaetten, AT;
Abstract
A proximity sensor () with crosstalk compensation comprises a transmitting circuit () to transmit a signal to be reflected at a target () and a disturbing object (), and a receiving circuit () to receive a reflected signal (RS) having a useful component (RSI) and a noise component (RS). The receiving circuit () comprises an output node (A) to provide an output signal (Vout) in dependence from the distance of the proximity sensor () from the target (). The receiving circuit () comprises a crosstalk compensation circuit () comprising a first charging circuit () to provide a first charge for for coarse crosstalk compensation and a second charging circuit () to provide a second charge for fine crosstalk compensation. A control circuit () sets an amount of the first and the second charge so that the output signal (Vout) of the crosstalk compensation circuit () is dependent on the useful component (RSI) and independent on the noise component (RS) of the reflected signal (RS).