Patent ID: 11861115
Assignee: APPLE INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 14:
15. The device of claim 13, wherein determining the location of the contact on the surface based on the one or more of the reflected ultrasonic waves propagating in the surface is based on the first reflected ultrasonic wave from the surface, the second reflected ultrasonic wave from the surface, the third reflected ultrasonic wave from the surface, and the fourth reflected ultrasonic wave from the surface; and wherein determining the applied force by the contact on the surface based on the one or more reflected ultrasonic waves propagating in the deformable material is based on the first reflected ultrasonic wave from the deformable material, the second reflected ultrasonic wave from the deformable material, the third reflected ultrasonic wave from the deformable material, and the fourth reflected ultrasonic wave from the deformable material.