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    LINK STATUS BASED CONTENT PROTECTION BUFFERS
    4.
    发明申请
    LINK STATUS BASED CONTENT PROTECTION BUFFERS 审中-公开
    LINK状态的内容保护缓冲区

    公开(公告)号：US20130305388A1

    公开(公告)日：2013-11-14

    申请号：US13842839

    申请日：2013-03-15

    Applicant: QUALCOMM INCORPORATED

    Inventor： Sudeep Ravi Kottilingal ,  Christian Josef Wiesner ,  Dafna Shaool ,  Jeffrey David Shabel

    IPC: G06F21/62

    CPC classification number: G06F21/6218 ,  G06F21/10 ,  G06F21/74

    Abstract: Systems, methods, and devices for processing video data are disclosed. Some examples include a content receiver including an unsecure processor and an unsecure memory coupled to the unsecure processor. The example includes content protection zone hardware including a secure memory and an input for receiving content. The input coupled to the content protection zone hardware, wherein the content protection zone hardware determines if the received content is secure or unsecure and directs secure content to the secure memory and unsecure content to the unsecure memory.

    Abstract translation: 公开了用于处理视频数据的系统，方法和设备。 一些示例包括包含不安全处理器的内容接收器和耦合到不安全处理器的不安全存储器。 该示例包括包括安全存储器的内容保护区域硬件和用于接收内容的输入。 所述输入耦合到所述内容保护区硬件，其中所述内容保护区硬件确定所接收的内容是安全的还是不安全的，并且将安全内容引导到安全存储器，并且向不安全的存储器提供不安全的内容。

    HARDWARE ENFORCED OUTPUT SECURITY SETTINGS
    6.
    发明申请
    HARDWARE ENFORCED OUTPUT SECURITY SETTINGS 有权
    硬件强制输出安全设置

    公开(公告)号：US20130305342A1

    公开(公告)日：2013-11-14

    申请号：US13715351

    申请日：2012-12-14

    Applicant: QUALCOMM INCORPORATED

    Inventor： Sudeep Ravi Kottilingal ,  Gary Arthur Ciambella ,  Steven John Halter

    IPC: G06F21/62

    CPC classification number: G06F21/62 ,  G06F21/00 ,  H04L63/02 ,  H04N21/42623 ,  H04N21/42653 ,  H04N21/42692 ,  H04N21/43853 ,  H04N21/44004 ,  H04N21/4405 ,  H04N21/4431 ,  H04N21/4435 ,  H04N21/835

    Abstract: Generally, aspects of this disclosure are directed to copy protection techniques. Areas in memory may be secured to establish a secure memory area in the memory that is not accessible by unauthorized clients. A request to decode video content stored in the secure memory area may be received. If the video content to be decoded is stored in the secure memory area, a first MMU associated with the hardware decoder may enforce a rule that the video content is to be decoded into one or more output buffers in the secure memory area. A request to display the decoded video content stored in the secure memory area may be received. If the decoded video content is stored in the secure memory area, a second MMU associated with a hardware display processor may enforce a rule that a secure link be established between the hardware display processor and an output device.

    Abstract translation: 通常，本公开的方面涉及复制保护技术。 存储器中的区域可以被保护以在存储器中建立安全的存储器区域，该区域不被未经授权的客户端访问。 可以接收对存储在安全存储器区域中的视频内容进行解码的请求。 如果要解码的视频内容被存储在安全存储器区域中，则与硬件解码器相关联的第一MMU可以强制将视频内容解码为安全存储器区域中的一个或多个输出缓冲器的规则。 可以接收显示存储在安全存储器区域中的解码的视频内容的请求。 如果解码的视频内容存储在安全存储器区域中，则与硬件显示处理器相关联的第二MMU可以强制在硬件显示处理器和输出设备之间建立安全链路的规则。

    Methods and apparatus for histogram based tone mapping
    7.
    发明授权
    Methods and apparatus for histogram based tone mapping 有权

    公开(公告)号：US11769234B2

    公开(公告)日：2023-09-26

    申请号：US17065334

    申请日：2020-10-07

    Applicant: QUALCOMM Incorporated

    Inventor： Min Li ,  Ike Ikizyan ,  Sudeep Ravi Kottilingal ,  Gopikrishnaiah Andandan

    IPC: G06T5/00 ,  G06T5/40

    CPC classification number: G06T5/009 ,  G06T5/40 ,  G06T2207/10016 ,  G06T2207/20004 ,  G06T2207/20072 ,  G06T2207/20208

    Abstract: The present disclosure relates to methods and devices for video or frame processing including an apparatus, e.g., a video or frame processor. In some aspects, the apparatus may receive a video stream including a plurality of frames, each of the plurality of frames including luminance information. The apparatus may also perform a histogram analysis on the luminance information for each of the plurality of frames. Additionally, the apparatus may determine whether a difference between the luminance information for each of the plurality of frames and a current luminance distribution is greater than a perceptual threshold. The apparatus may also calculate an updated tone mapping configuration based on the luminance information for a frame when the difference between the luminance information for the frame and the current luminance distribution is greater than the perceptual threshold.

    Hardware enforced content protection for graphics processing units
    9.
    发明授权
    Hardware enforced content protection for graphics processing units 有权
    硬件强制执行图形处理单元的内容保护

    公开(公告)号：US08931108B2

    公开(公告)日：2015-01-06

    申请号：US13769687

    申请日：2013-02-18

    Applicant: QUALCOMM Incorporated

    Inventor： Colin Christopher Sharp ,  Sudeep Ravi Kottilingal ,  Thomas Edwin Frisinger ,  Andrew E. Gruber

    IPC: G06F21/00 ,  G06F21/53 ,  G06F21/50

    CPC classification number: G06F21/53 ,  G06F21/10 ,  G06F21/50 ,  G06F21/74 ,  G06F2221/0746

    Abstract: A graphics processing unit (GPU) is configured to access a first memory unit according to one of an unsecure mode and a secure mode. The GPU may include a memory access controller configured to allow the GPU to read data from only an unsecure portion of the first memory unit when the GPU is in the unsecure mode, and configured to allow the GPU to write data only to a secure portion of the first memory unit when the GPU is in the secure mode.

    Abstract translation: 图形处理单元（GPU）被配置为根据不安全模式和安全模式之一访问第一存储器单元。 GPU可以包括存储器访问控制器，其被配置为当GPU处于不安全模式时允许GPU仅从第一存储器单元的不安全部分读取数据，并且被配置为允许GPU将数据仅写入到 当GPU处于安全模式时的第一个存储单元。

    HARDWARE ENFORCED CONTENT PROTECTION FOR GRAPHICS PROCESSING UNITS
    10.
    发明申请
    HARDWARE ENFORCED CONTENT PROTECTION FOR GRAPHICS PROCESSING UNITS 有权
    硬件执行图形处理单元的内容保护

    公开(公告)号：US20140237609A1

    公开(公告)日：2014-08-21

    申请号：US13769687

    申请日：2013-02-18

    Applicant: QUALCOMM INCORPORATED

    Inventor： Colin Christopher Sharp ,  Sudeep Ravi Kottilingal ,  Thomas Edwin Frisinger ,  Andrew E. Gruber

    IPC: G06F12/14

    CPC classification number: G06F21/53 ,  G06F21/10 ,  G06F21/50 ,  G06F21/74 ,  G06F2221/0746

    Abstract: This disclosure proposes techniques for graphics processing. In one example, a graphics processing unit (GPU) is configured to access a first memory unit according to one of an unsecure mode and a secure mode. The GPU comprises a memory access controller configured to allow the GPU to read data from only an unsecure portion of the first memory unit when the GPU is in the unsecure mode, and configured to allow the GPU to write data only to a secure portion of the first memory unit when the GPU is in the secure mode.

    Abstract translation: 本公开提出了用于图形处理的技术。 在一个示例中，图形处理单元（GPU）被配置为根据不安全模式和安全模式之一访问第一存储器单元。 GPU包括存储器访问控制器，其被配置为当GPU处于不安全模式时允许GPU仅从第一存储器单元的不安全部分读取数据，并且被配置为允许GPU仅将数据写入到安全部分 当GPU处于安全模式时的第一个存储单元。

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