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. 17, 2026
Filed:
Dec. 15, 2023
Amazon Technologies, Inc., Seattle, WA (US);
Priyanka Chowdary Chimmili, Milpitas, CA (US);
Mohammad Rashidul Quddes, Fremont, CA (US);
Morris Yuanhsiang Hsu, Mountain View, CA (US);
Peruvemba Ranganath Sai Ananthanarayanan, Fremont, CA (US);
Naman B Barmecha, Newark, CA (US);
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
Systems and methods are provided for determining the tilt-state of a moveable surface using a batteryless mechanism. A tilt-sensing device may be coupled to a moveable surface, such that the tilt-sensing device changes orientation in a manner corresponding the orientation of the moveable surface. The tilt-sensing device may include an antenna and a moveable component. The moveable component may change locations as the tilt-sensing device changes orientation due to gravitational forces. When the tilt-sensing device is in a substantially horizontal orientation, the moveable component may cause a distribution of material on the antenna. The distribution of material may detune the antenna by applying a load. Signals transmitted by the antenna may be shifted with respect to an expected frequency range. An external computing device may determine the tilt-state of the tilt-sensing device based on the presence or absence of a shift within received signals from the tilt-sensing device.