公开(公告)号：US20180136770A1

公开(公告)日：2018-05-17

申请号：US15351397

申请日：2016-11-14

Applicant: Google Inc.

Inventor： Kelvin Kwong ,  Debanjan Mukherjee ,  James Aaron Cooper

IPC: G06F3/041 ,  G01L1/22 ,  G06F3/045

CPC classification number: G06F3/0414 ,  G01L1/225 ,  G06F1/1601 ,  G06F3/02 ,  G06F3/045 ,  G06F2200/1636 ,  H03K17/9647

Abstract: An apparatus for sensing user input includes a first strain gauge grouping attached to an inner surface of a housing of a device, and a second strain gauge grouping attached to the inner surface of the housing. The apparatus includes a circuit coupled to the first and second strain gauge groupings, the circuit being configured to: (i) receive a first parameter signal from the first strain gauge grouping in response to user input that interacts with the housing over a location of the first strain gauge grouping, (ii) indicate that a first type of user input has been received in response to receipt of the first parameter signal, (iii) receive a second parameter signal from the second strain gauge grouping in response to user input that interacts with the housing over a location of the second strain gauge grouping, and (iv) indicate that a second type of user input has been received in response to receipt of the second parameter signal.