公开(公告)号：WO2015106183A1

公开(公告)日：2015-07-16

申请号：PCT/US2015/010969

申请日：2015-01-12

Applicant: APPLE INC.

Inventor： FILIZ, Sinan ,  PEDDER, James E. ,  OGATA, Charley T. ,  SMITH, John Stephen ,  PATEL, Dhaval Chandrakant ,  CHOI, Shin John ,  HUPPI, Brian Q. ,  BUTLER, Christopher J. ,  GRUNTHANER, Martin P.

IPC: G01L1/18 ,  G01L1/20

CPC classification number: G06F3/0414 ,  G01L1/005 ,  G01L1/16 ,  G01L1/18 ,  G01L1/20 ,  G01L1/205 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G06F3/045 ,  G06F2203/04103 ,  G06F2203/04105 ,  G06F2203/04111

Abstract: An optically transparent force sensor that may compensate for environmental effects, including, for example, variations in temperature of the device or the surroundings. In some examples, two force-sensitive layers are separated by a compliant layer. The relative electrical response of the two force-sensitive layers may be used to compute an estimate of the force of a touch that reduces the effect of variations in temperature. In some examples, piezoelectric films having anisotropic strain properties are used to reduce the effects of temperature.

Abstract translation: 可以补偿环境影响的光学透明的力传感器，包括例如装置或周围环境的温度变化。 在一些示例中，两个力敏感层由柔顺层分开。 可以使用两个力敏感层的相对电响应来计算降低温度变化影响的触摸力的估计。 在一些实例中，使用具有各向异性应变特性的压电膜来降低温度的影响。

公开(公告)号：WO2017172241A1

公开(公告)日：2017-10-05

申请号：PCT/US2017/020464

申请日：2017-03-02

Applicant: APPLE INC.

Inventor： PEDDER, James E. ,  SMITH, John Stephen ,  VOSGUERITCHIAN, Michael ,  GARG, Vikram ,  FILIZ, Sinan ,  CHRISTOPHY, Miguel C.

IPC: G06F3/041 ,  G01L5/00 ,  G01L1/18

CPC classification number: G06F3/0418 ,  G01L1/18 ,  G01L1/205 ,  G01L1/2281 ,  G01L5/00 ,  G06F3/0412 ,  G06F3/0414 ,  G06F3/044 ,  G06F3/045 ,  G06F2203/04103 ,  G06F2203/04105 ,  H01L27/323

Abstract: A force sensor is disclosed. The force sensor includes a force-sensitive structure that compensates for temperature and other environmental changes through the use of a strain-sensitive element and one or more reference elements. An array of such force-sensitive structures forms a force-sensing layer.

Abstract translation: 公开了一种力传感器。 力传感器包括通过使用应变敏感元件和一个或多个参考元件来补偿温度和其他环境变化的力敏结构。 一系列这种力敏感结构形成力感应层。

公开(公告)号：WO2017014870A1

公开(公告)日：2017-01-26

申请号：PCT/US2016/037613

申请日：2016-06-15

Applicant: APPLE INC.

Inventor： VOSGUERITCHIAN, Michael ,  SMITH, John Stephen ,  FILIZ, Sinan ,  PEDDER, James E. ,  XU, Tingjun ,  WEN, Xiaonan

IPC: G01L1/22

CPC classification number: G01L1/225 ,  G01L1/22 ,  G01L1/2287 ,  G06F3/0414 ,  G06F3/045 ,  G06F3/0488

Abstract: One or more strain sensors can be included in an electronic device. Each strain sensor includes a strain sensitive element and one or more strain signal lines connected directly to the strain sensitive element. The strain sensor(s) are used to detect a force that is applied to the electronic device, to a component in the electronic device, and/or to an input region or surface of the electronic device. A strain sensitive element is formed or processed to have a first gauge factor and the strain signal line(s) is formed or processed to have a different second gauge factor. Additionally or alternatively, a strain sensitive element is formed or processed to have a first conductance and the strain signal line(s) is formed or processed to have a different second conductance.

Abstract translation: 电子设备中可以包括一个或多个应变传感器。 每个应变传感器包括应变敏感元件和直接连接到应变敏感元件的一个或多个应变信号线。 应变传感器用于检测施加到电子设备，电子设备中的部件和/或电子设备的输入区域或表面的力。 应变敏感元件被形成或加工成具有第一规格因子，并且应变信号线被形成或加工成具有不同的第二规格因子。 附加地或替代地，应变敏感元件被形成或加工成具有第一电导，并且应变信号线被形成或加工成具有不同的第二电导。