公开(公告)号：US12008087B2

公开(公告)日：2024-06-11

申请号：US17505318

申请日：2021-10-19

Applicant: Apple Inc.

Inventor： Alan M. Dunn ,  Anish C. Trivedi ,  Ronnie G. Misra ,  Wade Benson ,  Anand Dalal

IPC: H04L29/06 ,  G06F1/3234 ,  G06F21/31 ,  G06F21/60 ,  G06F21/62 ,  G06F21/64 ,  H04L9/32

CPC classification number: G06F21/31 ,  G06F1/3234 ,  G06F21/602 ,  G06F21/62 ,  G06F21/64 ,  H04L9/3242 ,  H04L9/3252

Abstract: Techniques are disclosed relating to maintaining device security associated with reduced power modes. In some embodiments, a computing device receives a request to place the computing device in a reduced power mode in which a first memory of the computing device is powered off. Based on the request, the computing device offloads a memory page from the first memory to a second memory such that the offloading includes encrypting the memory page. Based on a request to resume from the reduced power mode, the computing device restores the memory page from the second memory to the first memory such that the restoring includes decrypting the encrypted memory page. After initiating the restoring, the computing device presents a user authentication prompt asking for a user credential.

公开(公告)号：US20220129527A1

公开(公告)日：2022-04-28

申请号：US17505318

申请日：2021-10-19

Applicant: Apple Inc.

Inventor： Alan M. Dunn ,  Anish C. Trivedi ,  Ronnie G. Misra ,  Wade Benson ,  Anand Dalal

IPC: G06F21/31 ,  G06F21/62 ,  G06F21/64 ,  G06F1/3234 ,  G06F21/60

Abstract: Techniques are disclosed relating to maintaining device security associated with reduced power modes. In some embodiments, a computing device receives a request to place the computing device in a reduced power mode in which a first memory of the computing device is powered off. Based on the request, the computing device offloads a memory page from the first memory to a second memory such that the offloading includes encrypting the memory page. Based on a request to resume from the reduced power mode, the computing device restores the memory page from the second memory to the first memory such that the restoring includes decrypting the encrypted memory page. After initiating the restoring, the computing device presents a user authentication prompt asking for a user credential.

公开(公告)号：US20200150745A1

公开(公告)日：2020-05-14

申请号：US16746121

申请日：2020-01-17

Applicant: Apple Inc.

Inventor： Anand Dalal ,  Joshua P. de Cesare

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

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.

公开(公告)号：US20170177256A1

公开(公告)日：2017-06-22

申请号：US15447328

申请日：2017-03-02

Applicant: Apple Inc.

Inventor： Brijesh Tripathi ,  Shane J. Keil ,  Manu Gulati ,  Jung Wook Cho ,  Erik P. Machnicki ,  Gilbert H. Herbeck ,  Timothy J. Millet ,  Joshua P. de Cesare ,  Anand Dalal

IPC: G06F3/06 ,  G06F9/44 ,  G06F13/16 ,  G06F13/42 ,  G11C11/406 ,  G06F13/40

CPC classification number: G06F12/0223 ,  G06F1/3206 ,  G06F1/3287 ,  G06F1/3293 ,  G06F3/0625 ,  G06F3/0632 ,  G06F3/0634 ,  G06F3/0673 ,  G06F9/4406 ,  G06F12/0646 ,  G06F13/1668 ,  G06F13/4068 ,  G06F13/4265 ,  G06F2212/1032 ,  G11C11/40615 ,  Y02D10/122 ,  Y02D10/151 ,  Y02D10/171 ,  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.

公开(公告)号：US09201827B2

公开(公告)日：2015-12-01

申请号：US14077115

申请日：2013-11-11

Applicant: Apple Inc.

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

IPC: G06F3/00 ,  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。

公开(公告)号：US20210333132A1

公开(公告)日：2021-10-28

申请号：US17366459

申请日：2021-07-02

Applicant: Apple Inc.

Inventor： Brijesh Tripathi ,  Shane J. Keil ,  Manu Gulati ,  Jung Wook Cho ,  Erik P. Machnicki ,  Gilbert H. Herbeck ,  Timothy J. Millet ,  Joshua P. de Cesare ,  Anand Dalal ,  Michael F. Culbert

IPC: G01D9/00 ,  G06F13/16 ,  G06F1/3206 ,  G06F1/3287 ,  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.

公开(公告)号：US11079261B2

公开(公告)日：2021-08-03

申请号：US16689555

申请日：2019-11-20

Applicant: Apple Inc.

Inventor： Brijesh Tripathi ,  Shane J. Keil ,  Manu Gulati ,  Jung Wook Cho ,  Erik P. Machnicki ,  Gilbert H. Herbeck ,  Timothy J. Millet ,  Joshua P. de Cesare ,  Anand Dalal

IPC: G01D9/00 ,  G06F13/16 ,  G06F1/3206 ,  G06F1/3287 ,  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.

公开(公告)号：US10831700B2

公开(公告)日：2020-11-10

申请号：US16443660

申请日：2019-06-17

Applicant: Apple Inc.

Inventor： Daniel Wilson ,  Anand Dalal ,  Josh De Cesare

IPC: G06F15/173 ,  G06F13/42 ,  G06F1/3287 ,  G06F13/364

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.

公开(公告)号：US20200149932A1

公开(公告)日：2020-05-14

申请号：US16689555

申请日：2019-11-20

Applicant: Apple Inc.

Inventor： Brijesh Tripathi ,  Shane J. Keil ,  Manu Gulati ,  Jung Wook Cho ,  Erik P. Machnicki ,  Gilbert H. Herbeck ,  Timothy J. Millet ,  Joshua P. de Cesare ,  Anand Dalal

IPC: G01D9/00 ,  G06F1/3293 ,  G06F1/3287 ,  G06F1/3206 ,  G06F13/16

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.

公开(公告)号：US09479331B2

公开(公告)日：2016-10-25

申请号：US14463763

申请日：2014-08-20

Applicant: Apple Inc.

Inventor： Joshua P. de Cesare ,  Anand Dalal

IPC: G06F21/64 ,  H04L9/08 ,  G06F21/00

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。