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:
Jun. 18, 2024
Filed:
Mar. 12, 2021
Apple Inc., Cupertino, CA (US);
Joonhoi Hur, Sunnyvale, CA (US);
Bernhard Sogl, Unterhaching, DE;
Jochen Schrattenecker, Alberndorf in der Riedmark, AT;
Andreas Menkhoff, Oberhaching, DE;
Bin Xiao, San Ramon, CA (US);
Lucas Calderin, Berkeley, CA (US);
Andre Hanke, San Jose, CA (US);
Harald Pretl, Schwertberg, AT;
Rastislav Vazny, Saratoga, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
An electronic device may include a processor and wireless circuitry with transmit and receive antennas. Radar circuitry may use the transmit and receive antennas to perform spatial ranging on external objects farther than a threshold distance (e.g., 1-2 cm) from the transmit antenna. The wireless circuitry may include a voltage standing wave ration (VSWR) sensor coupled to the transmit antenna to detect the presence of objects within the threshold distance from the transmit antenna. This may serve to cover a blind spot for the radar circuitry near to the transmit antenna. The VSWR sensor may gather background VSWR measurements when other wireless performance metric data for the wireless circuitry is within a predetermined range of satisfactory values. The background VSWR measurements may be subtracted from real time VSWR measurements to perform accurate and robust ultra-short range object detection near to the transmit antenna.