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. 03, 2026
Filed:
Feb. 09, 2021
Semtech Corporation, Camarillo, CA (US);
Chaouki Rouaissia, Neuchâtel, CH;
Sébastien Grisot, Bourdry, CH;
Semtech Corporation, Camarillo, CA (US);
Abstract
A proximity sensor for a portable connected wireless device generating an immediate proximity status signal (PROXSTAT,) that becomes active when a part of a user's body is close to the proximity sensor, an averaging unit () that may include a FIFO buffer, averaging the immediate proximity status flag in a predetermined time window, and a decision unit generating a time-averaged proximity status flag () based on an averaged value of the immediate proximity status flag in the time window, for example when the averaged value exceeds a predetermined threshold. In embodiments, the sensor is configured to switch temporarily and repeatedly the time-averaged proximity status flag to an inactive state when the value of the averaged or accumulated value yields an active state of the time-averaged proximity status flag. This feature improves the connectivity when the sensor is used to limit the RF emission of mobile devices.