Method and system for dynamically controlling a display refresh rate
    1.
    发明授权
    Method and system for dynamically controlling a display refresh rate 有权
    动态控制显示刷新率的方法和系统

    公开(公告)号:US08334857B1

    公开(公告)日:2012-12-18

    申请号:US11957375

    申请日:2007-12-14

    摘要: A method and system are implemented to dynamically control a display refresh rate. Specifically, one embodiment of the present invention sets forth a method, which comprises the steps of driving a display device at a first refresh rate over a period of time, measuring a number of first content frames with changes in content out of a plurality of content frames that are generated over the period of time for the display device, and driving the display device at a second refresh rate if the number of the first content frames meets a first condition associated with a first threshold reference, and optionally driving the display device at a third refresh rate if the number of first content frames meets a second condition associated with a second threshold reference.

    摘要翻译: 实现方法和系统来动态地控制显示刷新率。 具体地,本发明的一个实施例提出了一种方法,其包括以下步骤:在一段时间内以第一刷新率驱动显示设备,测量多个内容中的内容变化的第一内容帧的数量 如果所述第一内容帧的数量满足与第一阈值参考相关联的第一条件,则以所述显示设备的一段时间内生成的帧以及以第二刷新率驱动所述显示设备,以及可选地以 如果第一内容帧的数量满足与第二阈值参考相关联的第二条件,则第三刷新率。

    Method and system of measuring quantitative changes in display frame content for dynamically controlling a display refresh rate
    2.
    发明授权
    Method and system of measuring quantitative changes in display frame content for dynamically controlling a display refresh rate 有权
    测量显示帧内容的定量变化的动态控制显示刷新率的方法和系统

    公开(公告)号:US08120621B1

    公开(公告)日:2012-02-21

    申请号:US11957374

    申请日:2007-12-14

    IPC分类号: G09G5/00

    摘要: A method and system are implemented to measure quantitative changes in display frame content for dynamically controlling a display refresh rate. Specifically, one embodiment of the present invention sets forth a method, which includes the steps of composing a first display frame from a first set of rendered image surfaces, composing a second display frame from a second set of rendered image surfaces, dividing the first display frame and the second display frame into a same number of frame regions. Also, for each of the frame regions, the method also includes the steps of calculating a first set of numerical codes and a second set of numerical codes representative of the content associated with the frame region in the first and second display frame, respectively; and determining an amount of changes in content between the first display frame and the second display frame based on the results of comparing the first set of numerical codes against the second set of numerical code.

    摘要翻译: 实现方法和系统来测量显示帧内容的定量变化,以动态地控制显示刷新率。 具体地,本发明的一个实施例提出了一种方法,其包括以下步骤:从第一组渲染图像表面构成第一显示帧,从第二组渲染图像表面构成第二显示帧,将第一显示器 帧和第二显示帧分成相同数量的帧区域。 此外,对于每个帧区域,该方法还包括以下步骤:分别计算表示与第一和第二显示帧中的帧区域相关联的内容的第一组数字代码和第二组数字代码; 以及基于将第一组数字代码与第二组数字代码进行比较的结果,确定第一显示帧和第二显示帧之间的内容的变化量。

    Method and system for detecting a display mode suitable for a reduced refresh rate
    3.
    发明授权
    Method and system for detecting a display mode suitable for a reduced refresh rate 有权
    用于检测适合于降低的刷新率的显示模式的方法和系统

    公开(公告)号:US09508111B1

    公开(公告)日:2016-11-29

    申请号:US11957379

    申请日:2007-12-14

    摘要: A method and system for detecting a display mode suitable for a reduced display refresh rate are disclosed. Specifically, one embodiment of the present invention sets forth a computing device, which includes a memory and a processing unit. The memory stores multiple image surface data. The processing unit is configured to compose a first display frame from a first base surface and optionally a first overlay surface, calculate a first numerical code representative of a first frame content of the first display frame, compose a second display frame from a second base surface and optionally a second overlay surface, calculate a second numerical code representative of a second frame content of the second display frame, and track the results of comparing the first numerical code with the second numerical code to determine whether a change between the first frame content and the second frame content has occurred.

    摘要翻译: 公开了一种用于检测适合于降低的显示刷新率的显示模式的方法和系统。 具体地,本发明的一个实施例阐述了一种包括存储器和处理单元的计算设备。 存储器存储多个图像表面数据。 处理单元被配置为从第一基面和可选地构成第一覆盖表面构成第一显示框,计算代表第一显示框的第一帧内容的第一数字代码,从第二基面构成第二显示帧 以及可选地第二覆盖表面,计算表示第二显示帧的第二帧内容的第二数字代码,并且跟踪将第一数字代码与第二数字代码进行比较的结果,以确定第一帧内容和 第二帧内容已经发生。

    System, method, and computer program product for determining a duty cycle for a pixel
    6.
    发明授权
    System, method, and computer program product for determining a duty cycle for a pixel 有权
    用于确定像素占空比的系统,方法和计算机程序产品

    公开(公告)号:US08823725B1

    公开(公告)日:2014-09-02

    申请号:US12337555

    申请日:2008-12-17

    摘要: A system, method, and computer program product are provided for determining a duty cycle for a pixel (e.g. of alternating pixel values to achieve an average pixel color). In use, a first value of a sub-color component bit of a pixel is determined. Additionally, a second value for the sub-color component bit of the pixel is calculated. Further, a duty cycle for alternating between the first value and the second value is determined (e.g. which when applied at normal display frame rate may achieve an average color).

    摘要翻译: 提供了一种用于确定像素的占空比(例如,交替的像素值以实现平均像素颜色)的系统,方法和计算机程序产品。 在使用中,确定像素的子颜色分量比特的第一值。 此外,计算像素的子颜色分量比特的第二值。 此外,确定用于在第一值和第二值之间交替的占空比(例如当以正常显示帧速率施加时可以获得平均颜色)。

    METHOD AND APPARATUS FOR CONTROLLING A SELF-REFRESHING DISPLAY DEVICE COUPLED TO A GRAPHICS CONTROLLER
    8.
    发明申请
    METHOD AND APPARATUS FOR CONTROLLING A SELF-REFRESHING DISPLAY DEVICE COUPLED TO A GRAPHICS CONTROLLER 审中-公开
    用于控制与图形控制器耦合的自熔显示装置的方法和装置

    公开(公告)号:US20120206461A1

    公开(公告)日:2012-08-16

    申请号:US13025087

    申请日:2011-02-10

    IPC分类号: G06T1/00

    摘要: A method and apparatus for controlling a self-refreshing display device coupled to a graphics controller are disclosed. A self-refreshing display device has a capability to drive the display based on video signals generated from a local frame buffer in the display device. A graphics controller coupled to the display device may optimally be placed in one or more power saving states when the display device is operating in a panel self-refresh mode. The graphics controller detects one or more progressive levels of idleness in the graphics controller and the pixel data stored in a frame buffer. Based on the detected idleness, the graphics controller signals the display device to enter or exit the panel self-refresh mode and enters a power saving state. When exiting the panel self-refresh mode, the display device and/or graphics controller ensure that the video signals generated by the local controller and the graphics controller are aligned.

    摘要翻译: 公开了一种用于控制耦合到图形控制器的自刷新显示设备的方法和装置。 自刷新显示装置具有基于从显示装置中的本地帧缓冲器生成的视频信号来驱动显示的能力。 当显示设备以面板自刷新模式操作时,耦合到显示设备的图形控制器可以最佳地被置于一个或多个省电状态。 图形控制器检测图形控制器中的一个或多个渐进级别的空闲和存储在帧缓冲器中的像素数据。 基于检测到的空闲状态,图形控制器通知显示设备进入或退出面板自刷新模式并进入省电状态。 当退出面板自刷新模式时,显示设备和/或图形控制器确保由本地控制器和图形控制器产生的视频信号对齐。

    System and method for controlling mode switches in hardware
    9.
    发明授权
    System and method for controlling mode switches in hardware 有权
    用于在硬件中控制模式开关的系统和方法

    公开(公告)号:US09292069B1

    公开(公告)日:2016-03-22

    申请号:US11945217

    申请日:2007-11-26

    IPC分类号: G06F17/00 G06F1/32

    摘要: One embodiment of the present invention sets forth a technique for controlling mode switches in hardware. The resource manager includes an “is mode possible” function that evaluates a given mode in conjunction with the limitations of the hardware to determine if the given mode is feasible. The display driver is configured to call this function to validate a proposed mode before generating commands specifying the state changes for the display heads. The display software interface hardware module within the GPU processes these commands and follows a standard sequence of steps to implement the mode switch. The steps may include interrupts to the resource manager to re-validate the proposed mode, again calling the “is mode possible” function, or perform operations that are not yet supported in the hardware. Advantageously, controlling mode switches in hardware enables less error-prone, more efficient, and more discerning mode switches relative to controlling mode switches in software.

    摘要翻译: 本发明的一个实施例提出了一种用于控制硬件中的模式切换的技术。 资源管理器包括一个“可能的模式”功能,其结合硬件的限制来评估给定的模式,以确定给定模式是否可行。 显示驱动器被配置为在生成指定显示器头的状态改变的命令之前调用该功能来验证所提出的模式。 GPU内的显示软件接口硬件模块处理这些命令,并按照标准的步骤顺序执行模式切换。 这些步骤可以包括资源管理器的中断以重新验证所提出的模式,再次调用“可能的模式”功能,或执行硬件中尚未支持的操作。 有利地,与软件中的控制模式切换相比,硬件中的控制模式切换使得相对于控制模式切换更少的易错,更有效和更挑剔的模式切换。