Active peak power management of a high performance embedded microprocessor cluster
    1.
    发明授权
    Active peak power management of a high performance embedded microprocessor cluster 有权
    高性能嵌入式微处理器集群的主动峰值功耗管理

    公开(公告)号:US09454196B2

    公开(公告)日:2016-09-27

    申请号:US13929331

    申请日:2013-06-27

    Applicant: Apple Inc.

    CPC classification number: G06F1/26 H02J1/02 H02J1/10 H02J7/345 Y10T307/527

    Abstract: In some embodiments, a system may include at least one voltage controller. At least one of the voltage controllers may assess, during use, an occurrence of a predetermined condition. In some embodiments, the system may include an at least first capacitor. The at least first capacitor may be coupled to at least one of the voltage controllers such that at least one of the voltage controllers engages the at least first capacitor to supply additional current when the predetermined condition occurs. When the increase in current is no longer required the at least first capacitor may be disengaged. The at least first capacitor may be charged when disengaged until a predetermined capacity.

    Abstract translation: 在一些实施例中,系统可以包括至少一个电压控制器。 至少一个电压控制器可以在使用期间评估预定条件的发生。 在一些实施例中,系统可以包括至少第一电容器。 至少第一电容器可以耦合到至少一个电压控制器,使得当预定条件发生时,至少一个电压控制器接合至少第一电容器以提供附加电流。 当电流的增加不再需要时,可以使至少第一电容器分离。 至少第一电容器可以在分离直到预定容量时被充电。

    Electrode Driving Schemes for Tunable Lens Systems

    公开(公告)号:US20230408848A1

    公开(公告)日:2023-12-21

    申请号:US18456315

    申请日:2023-08-25

    Applicant: Apple Inc.

    CPC classification number: G02C7/083 G02F1/294

    Abstract: A pair of eyeglasses may include one or more adjustable lenses. An adjustable lens may include electrically modulated optical material such as one or more liquid crystal cells having a phase profile that is adjusted using patterned electrodes. Digital-to-analog converter circuits may provide voltages to the electrodes. To save space on the lens, a smaller number of digital-to-analog converter circuits may provide voltages to a greater number of electrodes by sequentially coupling and decoupling the digital-to-analog converter circuits to different groups of electrodes, advancing from group-to-group with each clock cycle by a number of electrodes that is less than the number of digital-to-analog converter circuits. At least one of the electrodes in each group may be driven at the same voltage for two consecutive clock cycles to avoid erroneous voltages resulting from the parasitic capacitance between adjacent fingers.

    POWER DELIVERY IN A MULTIPLE-OUTPUT SYSTEM
    3.
    发明申请
    POWER DELIVERY IN A MULTIPLE-OUTPUT SYSTEM 有权
    多输出系统中的电力输送

    公开(公告)号:US20160099564A1

    公开(公告)日:2016-04-07

    申请号:US14733186

    申请日:2015-06-08

    Applicant: Apple Inc.

    Abstract: The disclosed embodiments provide a system that operates a power supply. During operation, the system disposes a first switching mechanism between a first output of a first power converter and two or more loads. Next, the system obtains two or more error signals for the two or more loads, wherein each error signal from the two or more error signals represents a difference between a load voltage of a load from the two or more loads and a first reference voltage for the load from a first set of reference voltages for driving the two or more loads using the first power converter. The system then uses the first switching mechanism to couple the load with a largest error signal from the two or more error signals to the first output.

    Abstract translation: 所公开的实施例提供了操作电源的系统。 在操作期间,系统在第一功率转换器的第一输出和两个或多个负载之间配置第一切换机构。 接下来,系统获得用于两个或更多个负载的两个或更多个误差信号,其中来自两个或更多个误差信号的每个误差信号表示来自两个或更多个负载的负载的负载电压与第一参考电压之间的差, 来自用于使用第一功率转换器驱动两个或更多个负载的第一组参考电压的负载。 系统然后使用第一切换机构将负载与来自两个或更多个误差信号的最大误差信号耦合到第一输出端。

    CONTENT DEPENDENT DISPLAY VARIABLE REFRESH RATE
    4.
    发明申请
    CONTENT DEPENDENT DISPLAY VARIABLE REFRESH RATE 有权
    内容相关显示可变刷新率

    公开(公告)号:US20160093239A1

    公开(公告)日:2016-03-31

    申请号:US14500646

    申请日:2014-09-29

    Applicant: APPLE INC.

    Abstract: Systems and methods for operating a display by dynamically determining a refresh rate for the display. In certain implementations, a processor determines a number of pixels having medium grayscale levels from a histogram for the image. If the number does not exceed a threshold, the processor sets a refresh rate for the display to a first refresh rate. In certain implementations, if the number exceeds a threshold, the processor may set the refresh rate for the display to a second refresh rate. Moreover, the first refresh rate may be lower than the second threshold. In some implementations, the image may be analyzed by subdividing the image into blocks and determining a refresh rate based on grayscale levels or distributions in the blocks. Based on the analysis of the blocks, a corresponding refresh rate may be selected.

    Abstract translation: 通过动态地确定显示器的刷新率来操作显示器的系统和方法。 在某些实现中,处理器根据图像的直方图确定具有中等灰度等级的像素数。 如果号码不超过阈值,则处理器将显示器的刷新率设置为第一刷新率。 在某些实现中,如果数量超过阈值,则处理器可以将显示器的刷新率设置为第二刷新率。 此外,第一刷新率可以低于第二阈值。 在一些实现中,可以通过将图像细分为块并且基于块中的灰度等级或分布来确定刷新率来分析图像。 基于块的分析,可以选择相应的刷新率。

    Devices and methods for reducing power consumption and size of gate drivers
    6.
    发明授权
    Devices and methods for reducing power consumption and size of gate drivers 有权
    用于降低栅极驱动器功耗和尺寸的器件和方法

    公开(公告)号:US09269319B2

    公开(公告)日:2016-02-23

    申请号:US14502856

    申请日:2014-09-30

    Applicant: APPLE INC.

    Abstract: One gate driver includes an output node configured to be coupled to a gate line and to provide power to the gate line for driving thin-film transistor (TFT) gates of a display. An input node of the gate driver is configured to receive an input signal. The gate driver includes a first field-effect transistor (FET) having a gate, a drain, and a source. The drain may be coupled to the input node and the source may be coupled to the output node. The gate driver also includes a second FET having a gate, a drain, and a source. The drain may be coupled to the input node. The gate driver includes a capacitor having a first end coupled to the gates of the FETs and a second end coupled to the source of the second FET. Using the gate driver power consumption of the display may be reduced.

    Abstract translation: 一个栅极驱动器包括被配置为耦合到栅极线并且向栅极线提供功率以用于驱动显示器的薄膜晶体管(TFT)栅极的输出节点。 栅极驱动器的输入节点被配置为接收输入信号。 栅极驱动器包括具有栅极,漏极和源极的第一场效应晶体管(FET)。 漏极可以耦合到输入节点,并且源可以耦合到输出节点。 栅极驱动器还包括具有栅极,漏极和源极的第二FET。 漏极可以耦合到输入节点。 栅极驱动器包括具有耦合到FET的栅极的第一端和耦合到第二FET的源极的第二端的电容器。 使用门驱动器可以降低显示器的功耗。

    RECONFIGURABLE MULTIPLE-OUTPUT POWER-DELIVERY SYSTEM
    7.
    发明申请
    RECONFIGURABLE MULTIPLE-OUTPUT POWER-DELIVERY SYSTEM 有权
    可重新配置的多输出功率输送系统

    公开(公告)号:US20150357815A1

    公开(公告)日:2015-12-10

    申请号:US14733211

    申请日:2015-06-08

    Applicant: Apple Inc.

    Abstract: The disclosed embodiments provide a system that operates a power supply. During operation, the system obtains power states of two or more loads coupled to two or more power converters in the power supply. Next, the system generates one or more control signals for a set of switching mechanisms to configure a coupling of the two or more loads to the two or more power converters through the switching mechanisms based on the power states.

    Abstract translation: 所公开的实施例提供了操作电源的系统。 在操作期间,系统获得耦合到电源中的两个或更多个功率转换器的两个或更多个负载的功率状态。 接下来,系统为一组切换机构生成一个或多个控制信号,以通过基于功率状态的切换机构来配置两个或更多个负载与两个或更多个功率转换器的耦合。

    Content dependent display variable refresh rate

    公开(公告)号:US09952642B2

    公开(公告)日:2018-04-24

    申请号:US14500646

    申请日:2014-09-29

    Applicant: APPLE INC.

    Abstract: Systems and methods for operating a display by dynamically determining a refresh rate for the display. In certain implementations, a processor determines a number of pixels having medium grayscale levels from a histogram for the image. If the number does not exceed a threshold, the processor sets a refresh rate for the display to a first refresh rate. In certain implementations, if the number exceeds a threshold, the processor may set the refresh rate for the display to a second refresh rate. Moreover, the first refresh rate may be lower than the second threshold. In some implementations, the image may be analyzed by subdividing the image into blocks and determining a refresh rate based on grayscale levels or distributions in the blocks. Based on the analysis of the blocks, a corresponding refresh rate may be selected.

    DEVICES AND METHODS FOR REDUCING POWER CONSUMPTION AND SIZE OF GATE DRIVERS
    10.
    发明申请
    DEVICES AND METHODS FOR REDUCING POWER CONSUMPTION AND SIZE OF GATE DRIVERS 有权
    降低门电机功耗和尺寸的装置和方法

    公开(公告)号:US20150108916A1

    公开(公告)日:2015-04-23

    申请号:US14502856

    申请日:2014-09-30

    Applicant: APPLE INC.

    Abstract: One gate driver includes an output node configured to be coupled to a gate line and to provide power to the gate line for driving thin-film transistor (TFT) gates of a display. An input node of the gate driver is configured to receive an input signal. The gate driver includes a first field-effect transistor (FET) having a gate, a drain, and a source. The drain may be coupled to the input node and the source may be coupled to the output node. The gate driver also includes a second FET having a gate, a drain, and a source. The drain may be coupled to the input node. The gate driver includes a capacitor having a first end coupled to the gates of the FETs and a second end coupled to the source of the second FET. Using the gate driver power consumption of the display may be reduced.

    Abstract translation: 一个栅极驱动器包括被配置为耦合到栅极线并且向栅极线提供功率以用于驱动显示器的薄膜晶体管(TFT)栅极的输出节点。 栅极驱动器的输入节点被配置为接收输入信号。 栅极驱动器包括具有栅极,漏极和源极的第一场效应晶体管(FET)。 漏极可以耦合到输入节点,并且源可以耦合到输出节点。 栅极驱动器还包括具有栅极,漏极和源极的第二FET。 漏极可以耦合到输入节点。 栅极驱动器包括具有耦合到FET的栅极的第一端和耦合到第二FET的源极的第二端的电容器。 使用门驱动器可以降低显示器的功耗。

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