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    Adaptive vibration damping mechanism to eliminate acoustic noise in electronic systems
    2.
    发明授权
    Adaptive vibration damping mechanism to eliminate acoustic noise in electronic systems 有权
    自适应振动阻尼机制，消除电子系统中的声学噪声

    公开(公告)号：US09208774B2

    公开(公告)日：2015-12-08

    申请号：US13861596

    申请日：2013-04-12

    Applicant: Apple Inc.

    Inventor： David A. Hardell

    IPC: A61F11/06 ,  G10K11/16 ,  H03B29/00 ,  G10K11/178 ,  H04R25/00

    CPC classification number: G10K11/1782 ,  G10K11/178 ,  G10K2210/129 ,  G10K2210/3026 ,  G10K2210/3028 ,  G10K2210/3214 ,  H04R25/45 ,  H04R25/453

    Abstract: A system to eliminate acoustic noise caused by a first Multi-Layer Ceramic Capacitor (MLCC) array positioned on a printed circuit board (PCB) is disclosed. The first MLCC array generates a first vibration responsible for the acoustic noise in response to receiving a varying input voltage. A third MLCC array senses the first vibration and generates a feedback signal. An adaptive filter then uses the feedback signal to generate an output signal that is used by a second MLCC to generate a second vibration that acts as a counter to dampen the first vibration. Because the input voltage signal is varying in time, the adaptive filter continually samples the varying input voltage and the feedback signal to generate the output signal that minimizes the acoustic noise. The second and third MLCC arrays are selectively positioned and oriented on the PCB for optimum performance.

    Abstract translation: 公开了一种消除由位于印刷电路板（PCB）上的第一多层陶瓷电容器（MLCC）阵列引起的声学噪声的系统。 响应于接收到变化的输入电压，第一MLCC阵列产生负责声学噪声的第一振动。 第三个MLCC阵列检测第一个振动并产生反馈信号。 然后，自适应滤波器使用反馈信号来产生由第二MLCC使用的输出信号，以产生用作抑制第一振动的计数器的第二振动。 由于输入电压信号在时间上是变化的，所以自适应滤波器连续地对变化的输入电压和反馈信号进行采样，以产生最小化噪声的输出信号。 第二和第三MLCC阵列选择性地定位和定向在PCB上以获得最佳性能。

    Brownout avoidance
    3.
    发明授权
    Brownout avoidance 有权

    公开(公告)号：US11088567B2

    公开(公告)日：2021-08-10

    申请号：US16503349

    申请日：2019-07-03

    Applicant: Apple Inc.

    Inventor： Cyril De La Cropte De Chanterac ,  David A. Hardell ,  Matthew L. Semersky ,  Yehonatan Perez

    IPC: H02J9/00 ,  H02J7/00

    Abstract: Examples of the disclosure are directed to methods of managing power of various modules of an electronic device to prevent the voltage of the battery from falling to an undervoltage lockout (UVLO) threshold. In some examples, software operating on the electronic device or an associated electronic device (e.g., a paired electronic device) may assign power budgets to one or more modules, thereby preventing each module from drawing its maximum current capacity and causing the battery's voltage level to fall to the UVLO threshold. In some examples, a pre-UVLO threshold (i.e., a threshold higher than the UVLO threshold) may be used to modify the states of one or more modules to save power as the voltage of the battery approaches the UVLO threshold, but before the device must be fully powered off.

    Brownout avoidance
    4.
    发明授权
    Brownout avoidance 有权

    公开(公告)号：US09647489B2

    公开(公告)日：2017-05-09

    申请号：US14812904

    申请日：2015-07-29

    Applicant: Apple Inc.

    Inventor： Cyril De La Cropte De Chanterac ,  David A. Hardell ,  Matthew L. Semersky ,  Yehonatan Perez

    IPC: G06F1/32 ,  H02J9/00 ,  H02J7/00

    CPC classification number: H02J9/002 ,  H02J7/0029 ,  H02J2007/004

    Abstract: Examples of the disclosure are directed to methods of managing power of various modules of an electronic device to prevent the voltage of the battery from falling to an undervoltage lockout (UVLO) threshold. In some examples, software operating on the electronic device or an associated electronic device (e.g., a paired electronic device) may assign power budgets to one or more modules, thereby preventing each module from drawing its maximum current capacity and causing the battery's voltage level to fall to the UVLO threshold. In some examples, a pre-UVLO threshold (i.e., a threshold higher than the UVLO threshold) may be used to modify the states of one or more modules to save power as the voltage of the battery approaches the UVLO threshold, but before the device must be fully powered off.

    METHODS AND APPARATUS FOR ENHANCED ALGORITHMS IN WIRELESS SYSTEMS
    5.
    发明申请
    METHODS AND APPARATUS FOR ENHANCED ALGORITHMS IN WIRELESS SYSTEMS 审中-公开
    无线系统中增强算法的方法与设备

    公开(公告)号：US20160050681A1

    公开(公告)日：2016-02-18

    申请号：US14828283

    申请日：2015-08-17

    Applicant: APPLE INC.

    Inventor： Jaime Tolentino ,  Camille Chen ,  Michael Jason Giles ,  Huy Le ,  Gary Thomason ,  David A. Hardell

    IPC: H04W72/08 ,  H04W4/00 ,  H04W28/02

    CPC classification number: H04W72/085 ,  H04B15/00 ,  H04B17/318 ,  H04B17/345 ,  H04L1/0001 ,  H04L1/20 ,  H04L5/0007 ,  H04L5/0012 ,  H04L5/0066 ,  H04W4/80 ,  H04W24/00 ,  H04W24/02 ,  H04W28/0236 ,  H04W28/04 ,  H04W52/245 ,  H04W72/02 ,  H04W72/1215 ,  H04W84/12 ,  H04W84/18 ,  H04W88/06

    Abstract: Methods and apparatus for mitigating the effects of interference between multiple air interfaces located on an electronic device. In one embodiment, the air interfaces include a WLAN interface and PAN (e.g., Bluetooth) interface, and information such as Receiver Signal Strength Index (RSSI) as well as system noise level information are used in order to intelligently execute interference mitigation methodologies, including the selective application of modified frequency selection, variation of transmitter power, and/or change of operating mode (e.g., from multiple-in multiple-out (MIMO) to single-in, single-out (SISO)) so as to reduce isolation requirements between the interfaces. These methods and apparatus are particularly well suited to use cases where the WLAN interface is operating with high data transmission rates. Business methods associated with the foregoing technology are also described.

    Abstract translation: 用于减轻位于电子设备上的多个空中接口之间的干扰影响的方法和装置。 在一个实施例中，空中接口包括WLAN接口和PAN（例如，蓝牙）接口，并且使用诸如接收机信号强度指数（RSSI）的信息以及系统噪声电平信息来智能地执行干扰减轻方法，包括 选择性地应用修改的频率选择，发射机功率的变化和/或操作模式的改变（例如，从多输入多输出（MIMO）到单输入，单输出（SISO）），以便减少隔离 接口之间的要求。 这些方法和装置特别适用于WLAN接口以高数据传输速率运行的情况。 还描述了与上述技术相关联的业务方法。

    TRAFFIC SHAPING TO MITIGATE BROWNOUT CONDITIONS
    7.
    发明申请
    TRAFFIC SHAPING TO MITIGATE BROWNOUT CONDITIONS 有权
    交通运输，以减轻疲劳状况

    公开(公告)号：US20160057707A1

    公开(公告)日：2016-02-25

    申请号：US14726503

    申请日：2015-05-30

    Applicant: APPLE INC.

    Inventor： Matthew L. Semersky ,  David A. Hardell ,  Cyril de la Cropte de Chanterac ,  Yehonantan Perez

    IPC: H04W52/02

    CPC classification number: H04W52/0277 ,  H04W52/0229 ,  H04W52/0238 ,  H04W52/0274 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/166 ,  Y02D70/26

    Abstract: Circuits, methods, and apparatus that react to brownout or near brownout conditions and mitigate complications that may result. Examples may turn off one or more circuits, such as a Wi-Fi transceiver when a brownout condition is reached or neared. Other examples may provide circuits, methods, and apparatus that proactively avoid brownout conditions. These examples may detect that a brownout condition may occur and take steps, such as Wi-Fi traffic shaping, to avoid them. Still further examples may react to brownout or near brownout conditions one or more times, then preemptively act to avoid further brownout conditions.

    Abstract translation: 对掉电或接近掉电条件做出反应的电路，方法和设备，并减轻可能导致的并发症。 当达到或接近掉电条件时，示例可能会关闭一个或多个电路，例如Wi-Fi收发器。 其他示例可以提供主动避免掉电条件的电路，方法和装置。 这些示例可以检测到可能发生掉电状况并采取诸如Wi-Fi流量整形的步骤来避免它们。 更进一步的例子可能会对掉电或接近掉电条件产生一次或多次反应，然后抢先采取行动以避免进一步的掉电状况。

    ADAPTIVE VIBRATION DAMPING MECHANISM TO ELIMINATE ACOUSTIC NOISE IN ELECTRONIC SYSTEMS
    9.
    发明申请
    ADAPTIVE VIBRATION DAMPING MECHANISM TO ELIMINATE ACOUSTIC NOISE IN ELECTRONIC SYSTEMS 有权
    消除电子系统噪声的自适应振动阻尼机制

    公开(公告)号：US20140307889A1

    公开(公告)日：2014-10-16

    申请号：US13861596

    申请日：2013-04-12

    Applicant: APPLE INC.

    Inventor： David A. Hardell

    IPC: G10K11/16

    CPC classification number: G10K11/1782 ,  G10K11/178 ,  G10K2210/129 ,  G10K2210/3026 ,  G10K2210/3028 ,  G10K2210/3214 ,  H04R25/45 ,  H04R25/453

    Abstract: A system to eliminate acoustic noise caused by a first MLCC (Multi-Layer Ceramic Capacitor) array positioned on a PCB (printed circuit board) is disclosed. The first MLCC array generates a first vibration responsible for the acoustic noise in response to receiving a varying input voltage. A third MLCC array senses the first vibration and generates a feedback signal. An adaptive filter then uses the feedback signal to generate an output signal that is used by a second MLCC to generate a second vibration that acts as a counter to dampen the first vibration. Because the input voltage signal is varying in time, the adaptive filter continually samples the varying input voltage and the feedback signal to generate the output signal that minimizes the acoustic noise. The second and third MLCC arrays are selectively positioned and oriented on the PCB for optimum performance.

    Abstract translation: 公开了一种消除由位于PCB（印刷电路板）上的第一MLCC（多层陶瓷电容器）阵列引起的声学噪声的系统。 响应于接收到变化的输入电压，第一MLCC阵列产生负责声学噪声的第一振动。 第三个MLCC阵列检测第一个振动并产生反馈信号。 然后，自适应滤波器使用反馈信号来产生由第二MLCC使用的输出信号，以产生用作抑制第一振动的计数器的第二振动。 由于输入电压信号在时间上是变化的，所以自适应滤波器连续地对变化的输入电压和反馈信号进行采样以产生使声学噪声最小化的输出信号。 第二和第三MLCC阵列选择性地定位和定向在PCB上以获得最佳性能。

    METHODS AND APPARATUS FOR ENHANCED COEXISTENCE ALGORITHMS IN WIRELESS SYSTEMS
    10.
    发明申请
    METHODS AND APPARATUS FOR ENHANCED COEXISTENCE ALGORITHMS IN WIRELESS SYSTEMS 有权
    无线系统中增强共存算法的方法与装置

    公开(公告)号：US20130182589A1

    公开(公告)日：2013-07-18

    申请号：US13725608

    申请日：2012-12-21

    Applicant: Apple Inc.

    Inventor： Jaime Tolentino ,  Camille Chen ,  Michael Jason Giles ,  Huy Le ,  Gary Thomason ,  David A. Hardell

    IPC: H04W24/02

    CPC classification number: H04W72/085 ,  H04B15/00 ,  H04B17/318 ,  H04B17/345 ,  H04L1/0001 ,  H04L1/20 ,  H04L5/0007 ,  H04L5/0012 ,  H04L5/0066 ,  H04W4/80 ,  H04W24/00 ,  H04W24/02 ,  H04W28/0236 ,  H04W28/04 ,  H04W52/245 ,  H04W72/02 ,  H04W72/1215 ,  H04W84/12 ,  H04W84/18 ,  H04W88/06

    Abstract: Methods and apparatus for mitigating the effects of interference between multiple air interfaces located on an electronic device. In one embodiment, the air interfaces include a WLAN interface and PAN (e.g., Bluetooth) interface, and information such as Receiver Signal Strength Index (RSSI) as well as system noise level information are used in order to intelligently execute interference mitigation methodologies, including the selective application of modified frequency selection, variation of transmitter power, and/or change of operating mode (e.g., from multiple-in multiple-out (MIMO) to single-in, single-out (SISO)) so as to reduce isolation requirements between the interfaces. These methods and apparatus are particularly well suited to use cases where the WLAN interface is operating with high data transmission rates. Business methods associated with the foregoing technology are also described.

    Abstract translation: 用于减轻位于电子设备上的多个空中接口之间的干扰影响的方法和装置。 在一个实施例中，空中接口包括WLAN接口和PAN（例如，蓝牙）接口，并且使用诸如接收机信号强度指数（RSSI）的信息以及系统噪声电平信息，以智能地执行干扰减轻方法，包括 选择性地应用修改的频率选择，发射机功率的变化和/或操作模式的改变（例如，从多输入多输出（MIMO）到单输入，单输出（SISO）），以便减少隔离 接口之间的要求。 这些方法和装置特别适用于WLAN接口以高数据传输速率运行的情况。 还描述了与上述技术相关联的业务方法。

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