Hardware Automatic Performance State Transitions in System on Processor Sleep and Wake Events
    41.
    发明申请
    Hardware Automatic Performance State Transitions in System on Processor Sleep and Wake Events 有权
    处理器睡眠和唤醒事件的硬件自动性能状态转换系统

    公开(公告)号:US20130232364A1

    公开(公告)日:2013-09-05

    申请号:US13863554

    申请日:2013-04-16

    Applicant: APPLE INC.

    Abstract: In an embodiment, a power management unit (PMU) may automatically transition (in hardware) the performance states of one or more performance domains in a system. The target performance states to which the performance domains are to transition may be programmable in the PMU by software, and software may signal the PMU that a processor in the system is to enter the sleep state. The PMU may control the transition of the performance domains to the target performance states, and may cause the processor to enter the sleep state. In an embodiment, the PMU may be programmable with a second set of target performance states to which the performance domains are to transition when the processor exits the sleep state. The PMU may control the transition of the performance domains to the second targeted performance states and cause the processor to exit the sleep state.

    Abstract translation: 在一个实施例中,功率管理单元(PMU)可以自动地(在硬件中)转换系统中的一个或多个性能域的性能状态。 性能域要转换到的目标性能状态可以通过软件在PMU中编程,并且软件可以向PMU发信号通知系统中的处理器进入睡眠状态。 PMU可以控制性能域到目标性能状态的转换,并且可能导致处理器进入睡眠状态。 在一个实施例中,PMU可以是可编程的,当处理器退出睡眠状态时,性能域将转换到第二组目标性能状态。 PMU可以控制性能域到第二目标性能状态的转换,并使处理器退出睡眠状态。

    Always-on audio control for mobile device

    公开(公告)号:US11049503B2

    公开(公告)日:2021-06-29

    申请号:US16786127

    申请日:2020-02-10

    Applicant: Apple Inc.

    Abstract: In an embodiment, an integrated circuit may include one or more CPUs, a memory controller, and a circuit configured to remain powered on when the rest of the SOC is powered down. The circuit may be configured to receive audio samples from a microphone, and match those audio samples against a predetermined pattern to detect a possible command from a user of the device that includes the SOC. In response to detecting the predetermined pattern, the circuit may cause the memory controller to power up so that audio samples may be stored in the memory to which the memory controller is coupled. The circuit may also cause the CPUs to be powered on and initialized, and the operating system (OS) may boot. During the time that the CPUs are initializing and the OS is booting, the circuit and the memory may be capturing the audio samples.

    Always-On Audio Control for Mobile Device
    44.
    发明申请

    公开(公告)号:US20190378514A1

    公开(公告)日:2019-12-12

    申请号:US16546574

    申请日:2019-08-21

    Applicant: Apple Inc.

    Abstract: In an embodiment, an integrated circuit may include one or more CPUs, a memory controller, and a circuit configured to remain powered on when the rest of the SOC is powered down. The circuit may be configured to receive audio samples from a microphone, and match those audio samples against a predetermined pattern to detect a possible command from a user of the device that includes the SOC. In response to detecting the predetermined pattern, the circuit may cause the memory controller to power up so that audio samples may be stored in the memory to which the memory controller is coupled. The circuit may also cause the CPUs to be powered on and initialized, and the operating system (OS) may boot. During the time that the CPUs are initializing and the OS is booting, the circuit and the memory may be capturing the audio samples.

    Method for chaining media processing

    公开(公告)号:US10102607B2

    公开(公告)日:2018-10-16

    申请号:US15692469

    申请日:2017-08-31

    Applicant: Apple Inc.

    Abstract: One embodiment may include media circuits, an application processor, a direct memory access circuit (DMA), and a media managing circuit. The application processor may issue media commands into a queue. The media managing circuit may retrieve a first media command, set the DMA to copy data associated with the first media command to the first media circuit, and send the first media command to the first media circuit. While the first media command is being executed, the media managing circuit may also retrieve a second media command, determine that the second media command utilizes data that is dependent on a completion of the first media command, and set the DMA to copy data from the first media circuit to the second media circuit. After the first media command has been completed, the media managing circuit may also send the second media command to the second media circuit.

    METHOD FOR CHAINING MEDIA PROCESSING
    49.
    发明申请

    公开(公告)号:US20170365034A1

    公开(公告)日:2017-12-21

    申请号:US15692469

    申请日:2017-08-31

    Applicant: Apple Inc.

    Abstract: One embodiment may include media circuits, an application processor, a direct memory access circuit (DMA), and a media managing circuit. The application processor may issue media commands into a queue. The media managing circuit may retrieve a first media command, set the DMA to copy data associated with the first media command to the first media circuit, and send the first media command to the first media circuit. While the first media command is being executed, the media managing circuit may also retrieve a second media command, determine that the second media command utilizes data that is dependent on a completion of the first media command, and set the DMA to copy data from the first media circuit to the second media circuit. After the first media command has been completed, the media managing circuit may also send the second media command to the second media circuit.

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