公开(公告)号：US20180024687A1

公开(公告)日：2018-01-25

申请号：US15722999

申请日：2017-10-02

Applicant: Apple Inc.

Inventor： Bingrui Yang ,  Martin P. Grunthaner ,  Steven P. Hotelling

IPC: G06F3/041 ,  H04M1/02 ,  G06F3/044 ,  G06F3/047 ,  G06F3/045 ,  H04M1/725 ,  G01L1/22

CPC classification number: G06F3/0414 ,  G01L1/22 ,  G01L1/2262 ,  G06F3/0418 ,  G06F3/044 ,  G06F3/045 ,  G06F3/047 ,  G06F2203/04102 ,  G06F2203/04105 ,  H03K17/9625 ,  H04M1/0266 ,  H04M1/7258 ,  H04M1/72583

Abstract: An electronic device may have a housing in which components such as a display are mounted. A strain gauge may be mounted on a layer of the display such as a cover layer or may be mounted on a portion of the housing or other support structure. The layer of material on which the strain gauge is mounted may be configured to flex in response to pressure applied by a finger of a user. The strain gauge may serve as a button for the electronic device or may form part of other input circuitry. A differential amplifier and analog-to-digital converter circuit may be used to gather and process strain gauge signals. The strain gauge may be formed form variable resistor structures that make up part of a bridge circuit that is coupled to the differential amplifier. The bridge circuit may be configured to reduce the impact of capacitively coupled noise.

公开(公告)号：US09575588B2

公开(公告)日：2017-02-21

申请号：US15005732

申请日：2016-01-25

Applicant: Apple Inc.

Inventor： Bingrui Yang ,  Martin P. Grunthaner ,  Steven P. Hotelling

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/047 ,  G06F3/045 ,  H03K17/96 ,  G01L1/22

CPC classification number: G06F3/0414 ,  G01L1/22 ,  G01L1/2262 ,  G06F3/0418 ,  G06F3/044 ,  G06F3/045 ,  G06F3/047 ,  G06F2203/04102 ,  G06F2203/04105 ,  H03K17/9625 ,  H04M1/0266 ,  H04M1/7258 ,  H04M1/72583

Abstract: An electronic device may have a housing in which components such as a display are mounted. A strain gauge may be mounted on a layer of the display such as a cover layer or may be mounted on a portion of the housing or other support structure. The layer of material on which the strain gauge is mounted may be configured to flex in response to pressure applied by a finger of a user. The strain gauge may serve as a button for the electronic device or may form part of other input circuitry. A differential amplifier and analog-to-digital converter circuit may be used to gather and process strain gauge signals. The strain gauge may be formed form variable resistor structures that make up part of a bridge circuit that is coupled to the differential amplifier. The bridge circuit may be configured to reduce the impact of capacitively coupled noise.

Abstract translation: 电子设备可以具有其中安装诸如显示器的部件的壳体。 应变计可以安装在诸如覆盖层的显示器的层上，或者可以安装在壳体或其他支撑结构的一部分上。 应变仪安装在其上的材料层可以被配置为响应于用户的手指施加的压力而弯曲。 应变计可以用作电子设备的按钮或者可以形成其他输入电路的一部分。 差分放大器和模数转换器电路可用于收集和处理应变计信号。 应变计可以形成为构成耦合到差分放大器的桥式电路的一部分的可变电阻器结构。 桥接电路可以被配置为减少电容耦合噪声的影响。

公开(公告)号：US20160070414A1

公开(公告)日：2016-03-10

申请号：US14846354

申请日：2015-09-04

Applicant: Apple Inc.

Inventor： Ashutosh Y. Shukla ,  Bingrui Yang ,  David A. Pakula ,  David Stronks

IPC: G06F3/041 ,  G06K9/00

CPC classification number: G06F3/0418 ,  G02F1/1309 ,  G02F1/13338 ,  G06F3/0202 ,  G06F3/0304 ,  G06F3/0412 ,  G06F2203/04103 ,  G09G3/20 ,  G09G2320/0693

Abstract: An electronic device may include electrical components. The electrical components may be calibrated. Calibration data may be stored in non-volatile memory on a component assembly or may be stored in a remote databased while a subassembly identifier is stored in the non-volatile memory. If a subassembly in a device becomes damaged, a replacement subassembly may be installed in the device. Control circuitry in the device may retrieve calibration data for the replacement subassembly from non-volatile memory on the subassembly or from the remote database.

Abstract translation: 电子设备可以包括电气部件。 电气部件可以被校准。 校准数据可以存储在组件组件上的非易失性存储器中，或者可以存储在远程数据库中，而组件标识符存储在非易失性存储器中。 如果设备中的子组件损坏，则可能会在设备中安装更换子组件。 设备中的控制电路可以从子组件或远程数据库中的非易失性存储器检索替换子组件的校准数据。