公开(公告)号：US20190074722A1

公开(公告)日：2019-03-07

申请号：US15875418

申请日：2018-01-19

Applicant: Apple Inc.

Inventor： Behrooz Shahsavari ,  Weiyu Huang ,  Sneha Kadetotad ,  Baboo V. Gowreesunker

IPC: H02J50/12 ,  H02J50/60 ,  H02J50/40 ,  H02J50/80 ,  H02J7/00 ,  H02J7/04 ,  H02J7/02

Abstract: A wireless power transmission system has a wireless power receiving device with a wireless power receiving coil that is located on a charging surface of a wireless power transmitting device with a wireless power transmitting coil array. Control circuitry in the wireless power transmitting device may use inverter circuitry to supply alternating-current signals to coils in the coil array, thereby transmitting wireless power signals. The control circuitry may also be used to detect foreign objects on the coil array such as metallic objects without wireless power receiving coils. For example, control circuitry may use inductance measurements from the coils in the coil array to identify segments of the coil array that correspond to potential wireless power receiving devices. The control circuitry may control wireless power transmission based on a comparison between the number of identified segments corresponding to potential wireless power receiving devices and a number of received device-identifiers.

公开(公告)号：US20170248446A1

公开(公告)日：2017-08-31

申请号：US15594834

申请日：2017-05-15

Applicant: Apple Inc.

Inventor： Baboo V. Gowreesunker ,  Joseph William Colosimo ,  Vladimir Fedorov

IPC: G01D5/347 ,  G05G9/047 ,  G06F3/0362

CPC classification number: G01D5/3473 ,  G01D5/34715 ,  G01D5/34776 ,  G05G9/047 ,  G06F3/0362

Abstract: A light source in a rotary optical encoder can illuminate a pattern on a rotatable shaft and an optical sensor can detect either the light that is reflected or transmitted based on the pattern. A sampling rate of the optical sensor is dynamically adjusted based on a rotational speed of the rotatable shaft. A pulse rate of the light source may also be dynamically adjusted based on the sampling rate of the optical sensor.

公开(公告)号：US20170090592A1

公开(公告)日：2017-03-30

申请号：US14936421

申请日：2015-11-09

Applicant: Apple Inc.

Inventor： Colin M. Ely ,  Fletcher R. Rothkopf ,  Baboo V. Gowreesunker ,  Prashanth S. Holenarsipur ,  Serhan O. Isikman ,  Anna-Katrina Shedletsky

IPC: G06F3/02 ,  G06F1/16 ,  G06F3/042

CPC classification number: G06F3/02 ,  G06F1/163 ,  G06F1/3231 ,  G06F3/0362 ,  G06F3/038 ,  G06F3/041 ,  G06F3/042 ,  G06F2203/04101 ,  G06F2203/04108

Abstract: Disclosed herein is an electronic device having a proximity sensor for determining whether an object, such as a user's finger, is in proximity to or in contact with an input mechanism of the electronic device.

公开(公告)号：US20170017346A1

公开(公告)日：2017-01-19

申请号：US15212119

申请日：2016-07-15

Applicant: Apple Inc.

Inventor： Baboo V. Gowreesunker ,  Alex Bijamov ,  Vinay Chawda

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/0346

CPC classification number: G06F3/0418 ,  G01L1/144 ,  G06F3/0414 ,  G06F3/044

Abstract: Systems and methods for detecting user input to an electronic device are disclosed. The electronic device can include an input sensor system that itself includes an input-sensitive structure that compresses or expands in response to user input. The input sensor system measures and electrical property of the input-sensitive structure for changes. The input sensor system is coupled to an accelerometer to receive acceleration data to modify the detected changes to the input-sensitive structure.

Abstract translation: 公开了用于检测用户对电子设备的输入的系统和方法。 电子设备可以包括输入传感器系统，其本身包括响应于用户输入而压缩或扩展的输入敏感结构。 输入传感器系统测量和输入敏感结构的电气特性进行变化。 输入传感器系统耦合到加速度计以接收加速数据，以将检测到的改变修改为输入敏感结构。

公开(公告)号：US20160313205A1

公开(公告)日：2016-10-27

申请号：US14696043

申请日：2015-04-24

Applicant: Apple Inc.

Inventor： Baboo V. Gowreesunker ,  Wayne C. Westerman

IPC: G01L25/00

CPC classification number: G01L25/00

Abstract: Disclosed herein are methods and systems for compensating for drift that may be present in a force sensing device. In some embodiments, the force sensing device may be calibrated to compensate for the drift. The calibration may include receiving an input waveform associated with a received amount of force on the force sensing device. A system model that approximates a transfer function that provides an output waveform associated with the input waveform is then determined. Using the system model, an inverse transfer function associated with the system model is also determined. The inverse transfer function may then be applied to the output waveform which compensates for the drift.

Abstract translation: 这里公开了用于补偿可能存在于力感测装置中的漂移的方法和系统。 在一些实施例中，可以校准力感测装置以补偿漂移。 校准可以包括接收与力感测装置上的接收的力的量相关联的输入波形。 然后确定逼近提供与输入波形相关联的输出波形的传递函数的系统模型。 使用系统模型，还确定与系统模型相关联的逆传递函数。 然后可以将逆传递函数应用于补偿漂移的输出波形。