公开(公告)号：US20210068217A1

公开(公告)日：2021-03-04

申请号：US17005214

申请日：2020-08-27

Applicant: Apple Inc.

Inventor： Richard L. Baer ,  Edwin W. Foo ,  Michael F. Jean ,  Mohamad H. Suleiman ,  Parin Patel

IPC: H05B45/10 ,  H04M1/21 ,  H05B47/19 ,  G03B15/05

Abstract: An accessory strobe device for a mobile device may operate to provide illumination at the same time as an internal built-in strobe (flash) of the mobile device. The accessory strobe device may receive a single, unidirectional signal from the mobile device that provides signals related to the timing of the internal strobe. The accessory strobe device may process the received signal to control its illumination using the timing and relative intensity levels of the internal strobe during metering and main (normal) flash operations associated with a camera on the mobile device. With the accessory strobe device operating using timing and relative intensity levels in a predetermined relationship with the timing and relative intensity levels of the internal strobe, the accessory strobe device may be used to complement the internal strobe during the metering and main (normal) flash operations for the camera.

公开(公告)号：US10404088B2

公开(公告)日：2019-09-03

申请号：US15174336

申请日：2016-06-06

Applicant: Apple Inc.

Inventor： Alexei E. Kosut ,  Paul M. Thompson ,  Parin Patel ,  Alan C. Cooney ,  Glen A. Rhodes

IPC: H02J7/00

Abstract: Methods, circuits, and apparatus to distribute power among devices in an electronic system where a device may receive power from more than one source, may have a bidirectional power connector, or both. One example may resolve conflicts when an electronic device receives power from more than one source. In this example, the device may determine which source may provide the most power, and may select to receive power from the power source that may deliver the most power. Other examples may have a preference to receive power from a particular source or via a specific connector. Other examples may switch from receiving power over a first connector to providing power over the first connector, while others may receive and provide power over different connectors at the same time. Another may be connected to a battery, and may draw power from the battery or not depending on the type of battery.

公开(公告)号：US10333528B1

公开(公告)日：2019-06-25

申请号：US16125624

申请日：2018-09-07

Applicant: Apple Inc.

Inventor： Parin Patel ,  Jamie L. Langlinais ,  Mark A. Yoshimoto ,  Rajarshi Paul

IPC: H03L7/085 ,  H03L7/099

Abstract: Power supply topologies can leverage relatively smaller component sizes while meeting the power requirements of loads. In a first stage, a determination is made as to whether a high current limit is exceeded for a first duration, or whether an average current provided exceeds an average current limit, such that a power supply component (e.g., inductor) is thermally stressed. In either event, a clock frequency is reduced by a first factor. In a second stage, a determination is made as to whether an output voltage drops below a voltage threshold. If so, the clock frequency may be further reduced by a second factor.

公开(公告)号：US20190101417A1

公开(公告)日：2019-04-04

申请号：US16123808

申请日：2018-09-06

Applicant: Apple Inc.

Inventor： Parin Patel ,  Stephen Hrinya

IPC: G01D5/245

Abstract: An electronic device may include a conductor sensing assembly for sensing movement of a conductor, for example, in order to provide an input assembly that may be operative to detect a user's manipulation of a distance between the conductor and a portion of the conductor sensing assembly for controlling a functionality of the device. The conductor sensing assembly may include an oscillator that may produce oscillations that decay at different rates dependent upon a variable distance between a component of the conductor sensing assembly and a conductor of the input assembly. As the decay rate may be dependent on or otherwise correlate with the magnitude of a distance between the oscillator and a conductor, detection of the decay rate of the oscillator may enable determination of a state of a button input assembly that includes a conductor operative to be movable by a user with respect to the oscillator.

公开(公告)号：US10007344B2

公开(公告)日：2018-06-26

申请号：US15096379

申请日：2016-04-12

Applicant: Apple Inc.

Inventor： Arman Hajati ,  Parin Patel

IPC: H04B3/36 ,  G06F3/01

CPC classification number: G06F3/016

Abstract: An electronic device may include a haptic actuator that may include a housing and a field member movable within the housing, and a driver capable of driving the haptic actuator and sensing at least one of a drive voltage and drive current for the haptic actuator. The electronic device may also include a closed-loop controller cooperating with the driver. The closed-loop controller may be capable of determining a calibration of the haptic actuator based upon at least one of the drive voltage and drive current, storing a reference pattern of movement for the field member, and driving the haptic actuator in a closed-loop configuration based upon the calibration of the haptic actuator and reference pattern of movement of the field member.

公开(公告)号：US20170090573A1

公开(公告)日：2017-03-30

申请号：US15096379

申请日：2016-04-12

Applicant: Apple Inc.

Inventor： Arman HAJATI ,  Parin Patel

IPC: G06F3/01

CPC classification number: G06F3/016

Abstract: An electronic device may include a haptic actuator that may include a housing and a field member movable within the housing, and a driver capable of driving the haptic actuator and sensing at least one of a drive voltage and drive current for the haptic actuator. The electronic device may also include a closed-loop controller cooperating with the driver. The closed-loop controller may be capable of determining a calibration of the haptic actuator based upon at least one of the drive voltage and drive current, storing a reference pattern of movement for the field member, and driving the haptic actuator in a closed-loop configuration based upon the calibration of the haptic actuator and reference pattern of movement of the field member.

公开(公告)号：US09506754B2

公开(公告)日：2016-11-29

申请号：US14225296

申请日：2014-03-25

Applicant: Apple Inc.

Inventor： Robert Mayor ,  Patrick Piemonte ,  Ronald Keryuan Huang ,  Parin Patel

IPC: G01C17/38 ,  G01R33/10 ,  G01V3/08 ,  G08B7/06

CPC classification number: G01C17/38 ,  G01R33/10 ,  G01V3/087 ,  G08B7/06

Abstract: A parameter related to the Earth's magnetic field can be used to determine accuracy of a magnetometer of a mobile device. In one aspect, a first instance of a parameter related to Earth's magnetic field is determined using data generated by the magnetometer. The magnetometer data can be based in part on a position of the mobile device with respect to the Earth. A second instance of the parameter can be determined using data generated by a model of Earth's magnetic field. The model data can also be based in part on the position of the mobile device with respect to the Earth. The first instance of the parameter can be compared with the second instance of the parameter. An accuracy metric for the magnetometer can be determined based on a result of the comparison. An indication of the accuracy metric can be presented by the mobile device.

Abstract translation: 可以使用与地球磁场相关的参数来确定移动设备的磁力计的精度。 在一个方面，使用由磁力计产生的数据来确定与地球磁场相关的参数的第一个实例。 磁力计数据可以部分地基于移动设备相对于地球的位置。 可以使用地球磁场模型生成的数据来确定参数的第二个实例。 模型数据也可以部分地基于移动设备相对于地球的位置。 参数的第一个实例可以与参数的第二个实例进行比较。 可以基于比较的结果来确定磁力计的精度度量。 可以由移动设备呈现精度度量的指示。

公开(公告)号：US09438054B2

公开(公告)日：2016-09-06

申请号：US13875106

申请日：2013-05-01

Applicant: Apple Inc.

Inventor： Parin Patel ,  Thomas C. Greening ,  Carl D. Tappan

IPC: H02J7/00

CPC classification number: H02J7/0052 ,  H02J7/0003 ,  H02J7/0031

Abstract: An on-chip digital communication interface circuit is to be directly coupled to a counterpart interface circuit of a separate battery-side gas gauge circuit. An on-chip battery charging control circuit controls battery charging voltage and current that is supplied from a separate power source interface circuit to a battery cell terminal, according to charging voltage and current limits. The charging limits are read from the gas gauge circuit and in effect carry out a selected one of several different battery charging profiles. Other embodiments are also described and claimed.

Abstract translation: 片上数字通信接口电路将直接耦合到单独的电池侧气量计电路的对方接口电路。 片上电池充电控制电路根据充电电压和电流限制来控制从单独的电源接口电路向电池单元端子提供的电池充电电压和电流。 从气量计电路读取充电限制，并且实际上执行几个不同电池充电曲线中所选择的一个。 还描述和要求保护其他实施例。

公开(公告)号：US20160094763A1

公开(公告)日：2016-03-31

申请号：US14502886

申请日：2014-09-30

Applicant: Apple Inc.

Inventor： Parin Patel ,  Stephen J. Hrinya

IPC: H04N5/225 ,  H04N5/232 ,  H05B33/08

CPC classification number: H04N5/2256 ,  G09G3/3406 ,  G09G2330/02 ,  H02M1/36 ,  H02M3/1584 ,  H02M2001/0032 ,  H04M1/22 ,  H04M2250/12 ,  H04M2250/52 ,  H04N5/23241 ,  H04N5/23293 ,  H05B33/0815 ,  H05B33/0845 ,  H05B33/0872 ,  Y02B70/16

Abstract: An asymmetric multiphase boost that provides flash functionality for display backlights. A backlight power management module for a display backlight may implement and control an asymmetric multiphase boost that includes two boost phases: a primary boost phase for typical display backlighting, and a secondary or flash boost phase that provides flash functionality via the display backlight when needed. The primary boost phase may be sized to provide high low-load efficiency, high inductance, and low switching frequency for normal display backlight operations. The flash boost phase may be sized for high current and peak power, low inductance, and high switching frequency for pulsed current applications. Via the asymmetric multiphase boost, the backlight power management module may, for example, be used to provide a camera flash function for front facing cameras.

Abstract translation: 一个不对称的多相增压，为显示背光提供闪光功能。 用于显示器背光的背光源电源管理模块可以实现和控制非对称多相升压，其包括两个升压阶段：用于典型显示器背光的初级升压阶段，以及在需要时通过显示器背光提供闪光功能的次级或闪电升压阶段。 主要的升压阶段的大小可以为正常的显示器背光操作提供高的低负载效率，高电感和低开关频率。 对于脉冲电流应用，闪存升压阶段的大小可以用于高电流和峰值功率，低电感和高开关频率。 通过非对称多相增压，背光源电源管理模块可以例如用于为前置摄像机提供相机闪光功能。

公开(公告)号：US20160077579A1

公开(公告)日：2016-03-17

申请号：US14486491

申请日：2014-09-15

Applicant: Apple Inc.

Inventor： Manu Gulati ,  Tristan R. Hudson ,  Parin Patel ,  Fabien Faure

IPC: G06F1/32 ,  G06F1/20

CPC classification number: G06F1/3296 ,  G06F1/206 ,  G06F1/30 ,  G06F1/3275 ,  Y02D10/14 ,  Y02D10/16 ,  Y02D10/172

Abstract: In an embodiment, a system includes a power management unit (PMU), a non-volatile memory, a volatile memory, and a processor. The PMU may be configured to generate a power supply voltage, change a state of a status signal responsive to an event, and reduce a voltage level of the power supply voltage responsive to a predetermined period of time elapsing from detecting the event. The system may be configured to transition from a first to a second operating mode responsive to the change of the state of the status signal, and cancel pending commands to the non-volatile memory responsive to the transition to the second operating mode. The non-volatile memory may be configured to complete active commands prior the predetermined period of time elapsing.

Abstract translation: 在一个实施例中，系统包括电源管理单元（PMU），非易失性存储器，易失性存储器和处理器。 PMU可以被配置为产生电源电压，响应于事件改变状态信号的状态，并且响应于从检测到事件经过的预定时间段来降低电源电压的电压电平。 系统可以被配置为响应于状态信号的状态的改变而从第一操作模式转换到第二操作模式，并且响应于转换到第二操作模式而将待决命令取消到非易失性存储器。 非易失性存储器可以被配置为在经过预定时间段之前完成活动命令。