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公开(公告)号：US20140129852A1
公开(公告)日：2014-05-08
申请号：US14154531
申请日：2014-01-14
Applicant: Apple Inc.
Inventor： Joshua de Cesare , Jonathan Jay Andrews
IPC: G06F1/18
CPC classification number: G06F1/189 , G06F1/3203 , G06F1/3296 , Y02D10/172
Abstract: A request for a high voltage mode is received and a high voltage timer is started in response to determining that a remaining amount of high voltage credits exceeds a voltage switch threshold value. A switch to the high voltage mode is made in response to the request. A low voltage mode is switched to in response to an indication. The request may be received from an application running on a data processing system. If the indication is that the high voltage timer has expired, a low voltage timer is started in response to switching to low voltage mode. If the high voltage request is still active when the low voltage timer expires, a switch back to high voltage mode occurs and a new high voltage timer is started.
Abstract translation: 响应于确定高电压信号的剩余量超过电压开关阈值，接收高电压模式的请求并且启动高电压定时器。 响应于该请求，进入高电压模式。 响应于指示，低电压模式被切换。 该请求可以从在数据处理系统上运行的应用程序接收。 如果指示高电压定时器已经到期，则响应于切换到低电压模式，启动低电压定时器。 如果低电压定时器超时，高电压请求仍然有效，则会发生切换回高电压模式，并启动新的高压定时器。
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公开(公告)号：US09063707B2
公开(公告)日：2015-06-23
申请号：US14154531
申请日：2014-01-14
Applicant: Apple Inc.
Inventor： Joshua de Cesare , Jonathan Jay Andrews
CPC classification number: G06F1/189 , G06F1/3203 , G06F1/3296 , Y02D10/172
Abstract: A request for a high voltage mode is received and a high voltage timer is started in response to determining that a remaining amount of high voltage credits exceeds a voltage switch threshold value. A switch to the high voltage mode is made in response to the request. A low voltage mode is switched to in response to an indication. The request may be received from an application running on a data processing system. If the indication is that the high voltage timer has expired, a low voltage timer is started in response to switching to low voltage mode. If the high voltage request is still active when the low voltage timer expires, a switch back to high voltage mode occurs and a new high voltage timer is started.
Abstract translation: 响应于确定高电压信号的剩余量超过电压开关阈值，接收高电压模式的请求并且启动高电压定时器。 响应于该请求，进入高电压模式。 响应于指示，低电压模式被切换。 该请求可以从在数据处理系统上运行的应用程序接收。 如果指示高电压定时器已经到期，则响应于切换到低电压模式，启动低电压定时器。 如果低电压定时器超时，高电压请求仍然有效，则会发生切换回高电压模式，并启动新的高压定时器。
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公开(公告)号：US08762755B2
公开(公告)日：2014-06-24
申请号：US13921100
申请日：2013-06-18
Applicant: Apple Inc.
Inventor： Joshua de Cesare , Bernard Joseph Semeria , Michael Smith
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。
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公开(公告)号：US09336394B2
公开(公告)日：2016-05-10
申请号：US14452397
申请日：2014-08-05
Applicant: Apple Inc.
Inventor： Dallas Blake de Atley , Joshua de Cesare , Michael Smith , Matthew Reda , Shantonu Sen , John Andrew Wright
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.
Abstract translation: 描述了通过通过通信链路验证从主机接收的代码图像来建立操作环境的方法和装置。 代码图像可以通过中央授权服务器进行数字签名。 代码图像的认证可以由嵌入在诸如便携式设备的只读存储器（ROM）的安全存储区域内的指纹基于公钥认证过程来确定。 可以向经认证的代码图像分配要存储在便携式设备的存储器中的散列签名。 可以在执行认证代码之后建立便携式设备的操作环境。
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