公开(公告)号：US09021288B2

公开(公告)日：2015-04-28

申请号：US13628000

申请日：2012-09-26

Applicant: Apple Inc.

Inventor： Fiyinfolu O. Adewale ,  Paul J. Costa ,  David R. Cox ,  Michael J. Giles ,  Steven I. Kuo ,  Nicholas W. Ruhter ,  Steven J. Sfarzo

IPC: G06F1/32

CPC classification number: G06F1/3253 ,  G06F1/266 ,  G06F1/3215 ,  G06F1/3234

Abstract: A method and apparatus for recovering from a low power state in a computing system is disclosed. In one embodiment of the method, the computing system enters the low power state from a standard power state after an activity detector indicates a user controlled peripheral device connected to the computer system has been inactive for a period of time. To enter the low power state, the method disconnects the user controlled peripheral device from a host controller, while continuing to supply power to the user controlled peripheral device and shutting off power to the host controller. The method returns the computer system to the standard power state when the activity detector indicates the user controlled peripheral device has become active. To return to the standard power state, power is restored to the host controller and the user controlled peripheral device is reconnected to the host controller.

Abstract translation: 公开了一种用于在计算系统中从低功率状态恢复的方法和装置。 在该方法的一个实施例中，在活动检测器指示连接到计算机系统的用户控制的外围设备已经不活动一段时间之后，计算系统从标准功率状态进入低功率状态。 为了进入低功率状态，该方法将用户控制的外围设备与主机控制器断开连接，同时继续向用户控制的外围设备供电，并关闭主机控制器的电源。 当活动检测器指示用户控制的外围设备变为活动状态时，该方法将计算机系统返回到标准电源状态。 要恢复到标准电源状态，电源恢复到主机控制器，用户控制的外围设备重新连接到主机控制器。

公开(公告)号：US20140204270A1

公开(公告)日：2014-07-24

申请号：US14226565

申请日：2014-03-26

Applicant: APPLE INC

Inventor： David R. Cox ,  Derek J. DiCarlo ,  Paul J. Costa

IPC: H04N5/44

CPC classification number: H04N5/44 ,  G06F3/14 ,  G09G5/003 ,  G09G5/006 ,  G09G5/36 ,  G09G2330/021 ,  G09G2330/026 ,  G09G2330/027 ,  G09G2370/047 ,  G09G2370/12 ,  G09G2370/20 ,  G09G2370/22 ,  H04N21/4143 ,  H04N21/43632 ,  H04N21/43635 ,  H04N21/44231 ,  H04N21/4436

Abstract: A system that displays a video signal on a display for a computer system is presented. During operation, the system receives a signal to switch from displaying a video signal from an internal video source to displaying a video signal from an external video source. In this system, the internal and external video sources are coupled to a bi-directional video port for the computer system, wherein the internal video source generates an output video signal and the external video source generates an input video signal. The system then determines whether the external video source is coupled to the bi-directional video port. If so, the system couples the external video source to the display and determines whether the external video source is a valid video source. If the external video source is a valid video source, the system displays the video signal from the external video source on the display.

Abstract translation: 提出了在计算机系统的显示器上显示视频信号的系统。 在操作期间，系统接收信号以从显示来自内部视频源的视频信号切换到显示来自外部视频源的视频信号。 在该系统中，内部和外部视频源耦合到用于计算机系统的双向视频端口，其中内部视频源产生输出视频信号，并且外部视频源产生输入视频信号。 然后，系统确定外部视频源是否耦合到双向视频端口。 如果是这样，系统将外部视频源耦合到显示器，并确定外部视频源是否是有效的视频源。 如果外部视频源是有效的视频源，系统会在显示屏上显示来自外部视频源的视频信号。