公开(公告)号：US20130283076A1

公开(公告)日：2013-10-24

申请号：US13921100

申请日：2013-06-18

Applicant: Apple Inc.

Inventor： Joshua De Cesare ,  Bernard Joseph Semeria ,  Michael Smith

IPC: G06F1/32

CPC classification number: G06F1/324 ,  G06F1/3203 ,  G06F1/3237 ,  G06F1/3287 ,  Y02D10/128 ,  Y02D10/171

Abstract: Methods and systems for managing power consumption in data processing systems are described. In one embodiment, a data processing system includes a general purpose processing unit, a graphics processing unit (GPU), at least one peripheral interface controller, at least one bus coupled to the general purpose processing unit, and a power controller coupled to at least the general purpose processing unit and the GPU. The power controller is configured to turn power off for the general purpose processing unit in response to a first state of an instruction queue of the general purpose processing unit and is configured to turn power off for the GPU in response to a second state of an instruction queue of the GPU. The first state and the second state represent an instruction queue having either no instructions or instructions for only future events or actions.

Abstract translation: 描述用于管理数据处理系统中的功耗的方法和系统。 在一个实施例中，数据处理系统包括通用处理单元，图形处理单元（GPU），至少一个外围设备接口控制器，耦合到通用处理单元的至少一个总线，以及耦合到至少 通用处理单元和GPU。 功率控制器被配置为响应于通用处理单元的指令队列的第一状态而为通用处理单元断电，并且被配置为响应于指令的第二状态而关闭GPU的电源 排队GPU 第一状态和第二状态表示具有对于将来的事件或动作的指令或指令的指令队列。

公开(公告)号：US10931451B2

公开(公告)日：2021-02-23

申请号：US16194072

申请日：2018-11-16

Applicant: Apple Inc.

Inventor： Dallas Blake De Atley ,  Joshua De Cesare ,  Michael Smith ,  Matthew Reda ,  Shantonu Sen ,  John Andrew Wright

IPC: H04L29/00 ,  H04L9/30 ,  G06F11/14 ,  G06F21/51 ,  G06F21/57 ,  G06F21/64 ,  H04L9/32 ,  H04L9/14 ,  H04L29/06

Abstract: A method and an apparatus for establishing an operating environment by certifying a code image received from a host over a communication link are described. The code image may be digitally signed through a central authority server. Certification of the code image may be determined by a fingerprint embedded within a secure storage area such as a ROM (read only memory) of the portable device based on a public key certification process. A certified code image may be assigned a hash signature to be stored in a storage of the portable device. An operating environment of the portable device may be established after executing the certified code.

公开(公告)号：US10142104B2

公开(公告)日：2018-11-27

申请号：US15619276

申请日：2017-06-09

Applicant: Apple Inc.

Inventor： Dallas Blake De Atley ,  Joshua De Cesare ,  Michael Smith ,  Matthew Reda ,  Shantonu Sen ,  John Andrew Wright

IPC: H04L29/00 ,  H04L9/30 ,  G06F21/51 ,  G06F21/57 ,  G06F21/64 ,  H04L9/32 ,  H04L9/14 ,  H04L29/06 ,  G06F11/14

Abstract: A method and an apparatus for establishing an operating environment by certifying a code image received from a host over a communication link are described. The code image may be digitally signed through a central authority server. Certification of the code image may be determined by a fingerprint embedded within a secure storage area such as a ROM (read only memory) of the portable device based on a public key certification process. A certified code image may be assigned a hash signature to be stored in a storage of the portable device. An operating environment of the portable device may be established after executing the certified code.

公开(公告)号：US09680648B2

公开(公告)日：2017-06-13

申请号：US15077794

申请日：2016-03-22

Applicant: Apple Inc.

Inventor： Dallas Blake De Atley ,  Joshua De Cesare ,  Michael Smith ,  Matthew Reda ,  Shantonu Sen ,  John Andrew Wright

IPC: H04L29/00 ,  H04L9/30 ,  G06F21/51 ,  G06F21/57 ,  G06F21/64 ,  H04L9/32 ,  H04L9/14 ,  H04L29/06 ,  G06F11/14

CPC classification number: H04L9/302 ,  G06F11/1417 ,  G06F21/51 ,  G06F21/572 ,  G06F21/575 ,  G06F21/64 ,  H04L9/14 ,  H04L9/3239 ,  H04L9/3247 ,  H04L9/3249 ,  H04L63/06 ,  H04L63/08

Abstract: A method and an apparatus for establishing an operating environment by certifying a code image received from a host over a communication link are described. The code image may be digitally signed through a central authority server. Certification of the code image may be determined by a fingerprint embedded within a secure storage area such as a read only memory (ROM) of the portable device based on a public key certification process. A certified code image may be assigned a hash signature to be stored in a storage of the portable device. An operating environment of the portable device may be established after executing the certified code.