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:
Jul. 26, 2022
Filed:
Aug. 19, 2020
Apple Inc., Cupertino, CA (US);
Ehsan Khajeh, Los Gatos, CA (US);
George Ho Yin Mak, Santa Clara, CA (US);
Marcus Yip, San Carlos, CA (US);
Brian Michael King, Saratoga, CA (US);
Aaron Scott Tucker, Redwood City, CA (US);
Jason S. Griesbach, Sausalito, CA (US);
Paul X. Wang, Fremont, CA (US);
Alex Joseph Lehmann, Redwood City, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Ultrasonic force detection systems and methods can be based on propagation of ultrasonic waves in a user's body (e.g., in a user's digit). An amount of force can be determined using time-of-flight (TOF) techniques of one or more ultrasonic waves propagating in the user's body. In some examples, an electronic device including a transducer can be coupled to a digit, and can transmit ultrasonic waves into the digit. As the wave propagates through the thickness of the digit, a reflection of at least a portion of the transmitted wave can occur due to the bone and/or due to reaching the opposite side of the digit (e.g., finger pad). One or more reflections can be measured to determine the amount of force.