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    Managing Security in a System on a Chip (SOC) that Powers Down a Secure Processor
    22.
    发明申请
    Managing Security in a System on a Chip (SOC) that Powers Down a Secure Processor 有权
    管理片上系统（SOC）中的安全性，从而降低安全处理器的浪费

    公开(公告)号：US20160055102A1

    公开(公告)日：2016-02-25

    申请号：US14463763

    申请日：2014-08-20

    Applicant: Apple Inc.

    Inventor： Joshua P. de Cesare ,  Anand Dalal

    IPC: G06F12/14 ,  H04L9/08

    CPC classification number: H04L9/0869 ,  G06F21/00 ,  G06F21/79 ,  G06F2212/1052 ,  G09C1/02 ,  H04L9/002 ,  H04L2209/12 ,  H04L2209/24

    Abstract: An SOC includes a secure processor and an always-on component. The always-on component may remain powered even during times that other parts of the SOC are powered off. Particularly, the secure processor and related circuitry may be powered off, while various state for the secure processor may be stored in memory in an encrypted form. Certain state may be stored in the always-on component. When the secure processor is powered on again, the secure processor may check for the state in the always-on component. If the state is found, the secure processor may retrieve the state and use the state to access the encrypted memory state.

    Abstract translation: SOC包括一个安全处理器和一个永远在线的组件。 即使在SOC的其他部分断电的时间内，始终在线的组件也可能保持供电。 特别地，安全处理器和相关电路可以被断电，而用于安全处理器的各种状态可以以加密形式存储在存储器中。 某些状态可能存储在始终在线的组件中。 当安全处理器再次通电时，安全处理器可以检查始终打开组件中的状态。 如果发现状态，则安全处理器可以检索状态并使用该状态来访问加密的存储器状态。

    System on a Chip with Fast Wake from Sleep
    24.
    发明申请
    System on a Chip with Fast Wake from Sleep 有权
    具有快速唤醒睡眠的芯片上的系统

    公开(公告)号：US20150346806A1

    公开(公告)日：2015-12-03

    申请号：US14289775

    申请日：2014-05-29

    Applicant: Apple Inc.

    Inventor： Anand Dalal ,  Joshua P. de Cesare

    IPC: G06F1/32 ,  G06F9/44

    CPC classification number: G06F1/3287 ,  G06F1/3209 ,  G06F1/3215 ,  G06F1/3231 ,  G06F1/3293 ,  G06F9/4418 ,  G06F9/44505 ,  Y02D10/122 ,  Y02D10/171 ,  Y02D10/173 ,  Y02D10/43 ,  Y02D50/20

    Abstract: In an embodiment, a system on a chip (SOC) includes a component that remains powered when the remainder of the SOC is powered off. The component may include a sensor capture unit to capture data from various device sensors, and may filter the captured sensor data. Responsive to the filtering, the component may wake up the remainder of the SOC to permit the processing. The component may store programmable configuration data, matching the state at the time the SOC was most recently powered down, for the other components of the SOC, in order to reprogram them after wakeup. In some embodiments, the component may be configured to wake up the memory controller within the SOC and the path to the memory controller, in order to write the data to memory. The remainder of the SOC may remain powered down.

    Abstract translation: 在一个实施例中，芯片上的系统（SOC）包括当SOC的其余部分断电时保持供电的组件。 该组件可以包括用于从各种设备传感器捕获数据的传感器捕获单元，并且可以对所捕获的传感器数据进行过滤。 响应于过滤，组件可以唤醒SOC的剩余部分以允许处理。 组件可以存储可编程配置数据，与SOC最近断电时的状态相匹配，用于SOC的其他组件，以便在唤醒后重新编程它们。 在一些实施例中，组件可以被配置为唤醒SOC内的存储器控​​制器和到存储器控制器的路径，以便将数据写入存储器。 SOC的其余部分可能仍然断电。

    METHODS AND APPARATUS FOR REDUCING POWER CONSUMPTION WITHIN EMBEDDED SYSTEMS
    25.
    发明申请
    METHODS AND APPARATUS FOR REDUCING POWER CONSUMPTION WITHIN EMBEDDED SYSTEMS 有权
    用于减少嵌入式系统中的功耗的方法和装置

    公开(公告)号：US20140181469A1

    公开(公告)日：2014-06-26

    申请号：US14046824

    申请日：2013-10-04

    Applicant: Apple Inc.

    Inventor： Daniel Wilson ,  Anand Dalal ,  Josh de Cesare

    IPC: G06F15/173

    CPC classification number: G06F15/17362 ,  G06F1/3287 ,  G06F13/364 ,  G06F13/4282 ,  G06F13/4295 ,  Y02D10/151 ,  Y02D10/171 ,  Y02D50/20

    Abstract: Methods and apparatus for managing connections between multiple internal integrated circuits (ICs) of, for example, a high-speed internal device interface. Improved schemes for coordination of connection and disconnection events, and/or suspension and resumption of operation for a High-Speed Inter-Chip™ (HSIC) interface are disclosed. In one exemplary embodiment, a “device”-initiated and “host”-initiated connect/disconnect procedure is disclosed, that provides improved timing, synchronization, and power consumption.

    Abstract translation: 用于管理例如高速内部设备接口的多个内部集成电路（IC）之间的连接的方法和装置。 公开了用于协调连接和断开事件的改进方案，和/或高速片上（HSIC）接口的暂停和恢复操作。 在一个示例性实施例中，公开了一种“设备”引用和“主机”引用的连接/断开过程，其提供改进的定时，同步和功率消耗。

    DEVICE-DEPENDENT SELECTION BETWEEN MODES FOR ASYMMETRIC SERIAL PROTOCOLS
    26.
    发明申请
    DEVICE-DEPENDENT SELECTION BETWEEN MODES FOR ASYMMETRIC SERIAL PROTOCOLS 有权
    非对称序列协议模式之间的设备依赖选择

    公开(公告)号：US20140075054A1

    公开(公告)日：2014-03-13

    申请号：US14077115

    申请日：2013-11-11

    Applicant: Apple Inc.

    Inventor： Gregory T. Lydon ,  Lawrence G. Bolton ,  Anand Dalal

    IPC: G06F13/38

    CPC classification number: G06F13/387 ,  G06F13/385

    Abstract: A portable communication device (PCD) can automatically switch into different operating modes of an asymmetric communication protocol (such as USB) depending on the type of accessory connected. For example, the accessory can signal whether the PCD should operate in a first mode or a second mode using a hardware indicator such as identification resistor across two pins of a multi-pin connector and/or a software indicator such as a command protocol. The PCD can detect the accessory's signal and switch to the operating mode requested by the accessory.

    Abstract translation: 便携式通信设备（PCD）可以根据连接的附件的类型自动切换到不对称通信协议（例如USB）的不同操作模式。 例如，附件可以使用诸如多针连接器的两个引脚之类的诸如识别电阻器的硬件指示器和/或诸如命令协议的软件指示器来指示PCD是否应该以第一模式或第二模式操作。 PCD可以检测附件的信号并切换到附件要求的操作模式。

    System on a chip with fast wake from sleep
    28.
    发明授权
    System on a chip with fast wake from sleep 有权

    公开(公告)号：US10915160B2

    公开(公告)日：2021-02-09

    申请号：US16746121

    申请日：2020-01-17

    Applicant: Apple Inc.

    Inventor： Anand Dalal ,  Joshua P. de Cesare

    IPC: G06F1/32 ,  G06F9/44 ,  G06F9/445 ,  G06F1/3287 ,  G06F9/4401 ,  G06F1/3209 ,  G06F1/3215 ,  G06F1/3231 ,  G06F1/3293

    Abstract: In an embodiment, a system on a chip (SOC) includes a component that remains powered when the remainder of the SOC is powered off. The component may include a sensor capture unit to capture data from various device sensors, and may filter the captured sensor data. Responsive to the filtering, the component may wake up the remainder of the SOC to permit the processing. The component may store programmable configuration data, matching the state at the time the SOC was most recently powered down, for the other components of the SOC, in order to reprogram them after wakeup. In some embodiments, the component may be configured to wake up the memory controller within the SOC and the path to the memory controller, in order to write the data to memory. The remainder of the SOC may remain powered down.

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