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公开(公告)号：US20130235902A1
公开(公告)日：2013-09-12
申请号：US13726503
申请日：2012-12-24
Applicant: APPLE INC.
Inventor： Parin Patel , Scott P. Mullins
IPC: G01K13/00
CPC classification number: G01K13/00 , A61K31/56 , G01N33/5041 , G01N2500/00 , G06F1/206 , G06F1/32 , G06F1/3206 , H01M10/425 , H01M10/443 , H01M10/486 , H01M2010/4271 , H01M2010/4278 , Y02D10/16
Abstract: A power-management unit is described. This power-management unit allows a common signal line to communicate data between an integrated circuit (which may be external to the power-management unit) and a battery-monitoring mechanism in a battery pack, and to convey a signal that represents a temperature state of the battery pack to a temperature-monitoring circuit or mechanism that monitors the temperature state of the battery pack. In particular, the power-management unit may include a single-wire interface or a multiplexer that, at a given time, selectively couples the signal line from the battery pack either to the integrated circuit or the temperature-monitoring circuit based on a control signal provided by the integrated circuit (for example, via an I2C bus or interface). In this way, the power-management unit may reduce the number of signal lines needed to communicate with the battery-monitoring mechanism and to convey the signal.
Abstract translation: 描述电源管理单元。 该电力管理单元允许公共信号线在集成电路（其可以在电力管理单元的外部）与电池组中的电池监视机构之间通信数据，并且传达表示温度状态的信号 的电池组的温度监测电路或机构，其监测电池组的温度状态。 特别地，电源管理单元可以包括单线接口或多路复用器，其在给定时间，基于控制信号，将信号线从电池组选择性地耦合到集成电路或温度监视电路 由集成电路提供（例如，通过I2C总线或接口）。 以这种方式，电源管理单元可以减少与电池监视机构通信所需的信号线的数量并传送信号。
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公开(公告)号：US11172553B2
公开(公告)日：2021-11-09
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
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.
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公开(公告)号：US10560107B1
公开(公告)日：2020-02-11
申请号：US16450754
申请日：2019-06-24
Applicant: Apple Inc.
Inventor： Parin Patel , Jamie L. Langlinais , Mark A. Yoshimoto , Rajarshi Paul
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.
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公开(公告)号：US10122217B2
公开(公告)日：2018-11-06
申请号：US15152444
申请日：2016-05-11
Applicant: Apple Inc.
Inventor： Stephen Hrinya , Parin Patel
Abstract: Systems and methods for in-band communication across a wireless power interface from a load device to a source device. The load device selectively modifies the timing of switches within a voltage rectifier coupled to an output of a receive coil within the load device that receives power from a transmit coil within the source device. The source device detects changes in the power transfer (or in the relative timing of a voltage or a current) as digital information received from the load device.
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35.发明申请公开(公告)号：US20180013348A1
公开(公告)日：2018-01-11
申请号：US15627082
申请日：2017-06-19
Applicant: Apple Inc.
Inventor： Rajarshi Paul , Parin Patel , Damon Lee , Evaldo Miranda, JR. , Mark A. Yoshimoto , Jamie L. Langlinais , Jonathan M. Audy
CPC classification number: H02M3/158 , H02M1/083 , H02M1/14 , H02M3/157 , H02M3/1584 , H02M2001/0009 , H02M2003/1566 , H03K5/04
Abstract: A multi-phase switch mode, voltage regulator has a transient mode portion in which a phase control output is coupled to one or more control inputs of one or more switch circuits that conduct inductor current through one or more transient phase inductors, from amongst a number of phase inductors. A slew mode control circuit detects a high slope and then a low slope in the feedback voltage and, in between detection of the high slope and the low slope, pulses the phase control output of the transient mode portion so that the switch circuit that conducts transient phase inductor current adds power to, or sinks power from, the power supply output. Other embodiments are also described.
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Patent Agency Ranking
公开(公告)号：US20170093218A1
公开(公告)日：2017-03-30
申请号：US15152444
申请日：2016-05-11
Applicant: Apple Inc.
Inventor： Stephen Hrinya , Parin Patel
CPC classification number: H02J50/12 , H02J7/025 , H02J50/80 , H04B5/0031 , H04B5/0037 , H04B5/0075
Abstract: Systems and methods for in-band communication across a wireless power interface from a load device to a source device. The load device selectively modifies the timing of switches within a voltage rectifier coupled to an output of a receive coil within the load device that receives power from a transmit coil within the source device. The source device detects changes in the power transfer (or in the relative timing of a voltage or a current) as digital information received from the load device.
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公开(公告)号：US20170025862A1
公开(公告)日：2017-01-26
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
CPC classification number: H02J7/0063 , H02J2007/0067
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.
Abstract translation: 在设备可以从多个源接收电力的电子系统中的设备之间分配功率的方法，电路和设备可以具有双向电力连接器或两者。 当电子设备从多个源接收电力时，一个例子可以解决冲突。 在该示例中，设备可以确定哪个源可以提供最大功率，并且可以选择从电源接收可能提供最大功率的功率。 其他示例可以优选地从特定源或经由特定连接器接收电力。 其他示例可以从第一连接器上的接收功率切换到在第一连接器上提供电力，而其他示例可以同时接收和提供不同连接器的电力。 另一个可以连接到电池，并且可以根据电池的类型从电池中获取电力。
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公开(公告)号：US09531931B2
公开(公告)日：2016-12-27
申请号：US14502886
申请日：2014-09-30
Applicant: Apple Inc.
Inventor： Parin Patel , Stephen J. Hrinya
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。
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39.发明授权公开(公告)号：US09485398B2
公开(公告)日：2016-11-01
申请号：US14257702
申请日：2014-04-21
Applicant: Apple Inc.
Inventor： Parin Patel
CPC classification number: H04N5/2256 , G09G3/3406 , G09G2320/0666 , G09G2360/14 , G09G2360/144 , G09G2360/16 , H04M1/22 , H04M2250/52 , H04N5/20 , H04N5/2354 , H04N7/141
Abstract: A device to capture an image includes a camera oriented to capture a first image of a subject and a display oriented to display a second image that is viewable by the subject. A backlight is coupled to the display to provide light that passes through the display toward the subject. An image processor is coupled to the camera and the backlight to adjust an amount of light provided by the backlight responsive to a quality of the first image. The light provided by the backlight may illuminate the subject and thereby improve the quality of the first image. The image processor may further adjust the amount of light provided by the backlight responsive to an ambient light level sensed by an ambient light sensor. The image processor may further adjust the second image to adjust an amount of light that passes through the display.
Abstract translation: 捕捉图像的装置包括面向拍摄对象的第一图像的照相机和面向显示被对象可观看的第二图像的显示器。 背光源耦合到显示器以提供通过显示器朝向被摄体的光。 图像处理器耦合到相机和背光，以响应于第一图像的质量来调整由背光提供的光量。 由背光提供的光可照亮被摄体，从而提高第一图像的质量。 图像处理器可以响应于由环境光传感器感测到的环境光水平来进一步调节由背光提供的光量。 图像处理器可以进一步调整第二图像以调整通过显示器的光量。
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40.发明授权Discrete narrow-band switching frequency avoidance of a switch mode power converter 有权离散窄带开关频率避免开关模式电源转换器公开(公告)号：US09379606B2
公开(公告)日：2016-06-28
申请号：US13905506
申请日：2013-05-30
Applicant: Apple Inc.
Inventor： Rajarshi Paul , Parin Patel
CPC classification number: H02M3/156 , H02M1/08 , H02M1/44 , H02M2001/0032 , Y02B70/16
Abstract: The switching frequency of a switch mode PFM power converter is compared with a predetermined frequency range that contains the operating frequency of a nearby clocked sub-system. In response to the switching frequency coming into the range, a parameter of the power converter is changed from an original value, so as to cause the switching frequency to go out of the range.
Abstract translation: 将开关模式PFM功率转换器的开关频率与包含附近计时子系统的工作频率的预定频率范围进行比较。 响应于开关频率进入该范围，功率转换器的参数从原始值改变，以使开关频率超出该范围。
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