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    TRANSFORM COEFFICIENT CODING FOR CONTEXT-ADAPTIVE BINARY ENTROPY CODING OF VIDEO
    6.
    发明公开
    TRANSFORM COEFFICIENT CODING FOR CONTEXT-ADAPTIVE BINARY ENTROPY CODING OF VIDEO 有权
    变形金属ÜUNG UNG UNGÜO O O O O O O O O O O O O O O O O O

    公开(公告)号：EP2946553A4

    公开(公告)日：2016-07-27

    申请号：EP13872010

    申请日：2013-01-16

    申请人： BLACKBERRY LTD

    发明人： HE DAKE ,  JI TIANYING ,  WANG JING ,  WANG XIAOFENG

    IPC分类号： H04N19/91 ,  H04N19/13 ,  H04N19/18 ,  H04N19/93

    CPC分类号： H04N19/18 ,  H04N7/16 ,  H04N19/126 ,  H04N19/129 ,  H04N19/13 ,  H04N19/147 ,  H04N19/19 ,  H04N19/60 ,  H04N19/91 ,  H04N19/93

    摘要： Methods and devices for encoding and decoding video are described that partition transform blocks into coefficient groups. The coefficients within non-zero coefficients are run-length coded in a reverse scan order within the group. Prior to coefficient coding, data is encoded indicating which coefficient group in group scan order is the last to contain a non-zero coefficient. Then data is encoded indicating the position within that last non-zero coefficient group of the last non-zero coefficient in scan order inside the coefficient group. Thus the decoder is able to decode run-length data knowing the positions of the coefficients and eliminating the need for end-of-block flags.

    摘要翻译： 描述用于编码和解码视频的方法和装置，其将分割变换块分成系数组。 非零系数中的系数以组内的反向扫描顺序进行游程长度编码。 在系数编码之前，编码数据，指示组扫描顺序中的哪个系数组是最后包含非零系数的数据。 然后对数据进行编码，指示系数组内扫描顺序中最后一个非零系数的最后非零系数组内的位置。 因此，解码器能够解码知道系数的位置的游程长度数据，并且消除对块结束标志的需要。

    Variable encoding and detection apparatus and methods
    8.
    发明公开
    Variable encoding and detection apparatus and methods 有权
    可变编码器和解码器和Verfahren

    公开(公告)号：EP2849364A1

    公开(公告)日：2015-03-18

    申请号：EP14004084.1

    申请日：2005-03-08

    申请人： Nielsen Media Research, Inc.

    发明人： Luff, Robert, A. ,  Headley, Weston, P.

    IPC分类号： H04H60/37 ,  H04N21/234 ,  H04N21/422 ,  H04N21/466

    CPC分类号： H04N7/16 ,  H04H60/37 ,  H04H60/58 ,  H04H60/59 ,  H04N7/165 ,  H04N21/23418 ,  H04N21/25891 ,  H04N21/2665 ,  H04N21/42202 ,  H04N21/4382 ,  H04N21/4667

    摘要： Apparatus, methods, and articles of manufacture for media monitoring are disclosed. In particular, the example apparatus, methods, and articles of manufacture determine a media source type (200, 202, 204) associated with a media signal (400, 900) and select an encoding (402) or decoding mode (902) based on the media source type. An encoding operation encodes the media signal using the selected encoding mode and a decoding operation decodes the media signal using the selected decoding mode (404, 904).

    摘要翻译： 公开了用于媒体监测的装置，方法和制品。 具体地，示例性装置，方法和制品确定与媒体信号（400,900）相关联的媒体源类型（200,202,204），并基于以下方式选择编码（402）或解码模式（902） 媒体源类型。 编码操作使用所选择的编码模式对媒体信号进行编码，并且解码操作使用所选择的解码模式对媒体信号进行解码（404,904）。

    SECURING A HDCP LINK FROM GRAPHIC PROCESSOR GPU TO VIDEO DISPLAY
    9.
    发明公开
    SECURING A HDCP LINK FROM GRAPHIC PROCESSOR GPU TO VIDEO DISPLAY 有权
    安全图形处理器视频显示接口支持HDCP的。

    公开(公告)号：EP2745234A1

    公开(公告)日：2014-06-25

    申请号：EP12751707.6

    申请日：2012-08-17

    申请人： Apple Inc.

    发明人： HENDRY, Ian, C.

    IPC分类号： G06F21/82 ,  H04N21/8355 ,  G11B20/00

    CPC分类号： G11B20/00463 ,  G06F21/10 ,  G06F21/84 ,  G06T1/0021 ,  G06T2201/0053 ,  G06T2201/0064 ,  H04L9/32 ,  H04N7/16

    摘要： Securing protected content during video playback. The embodiments provide a system that drives a display from a computer system. During operation, the system writes graphical output, generated from a copyrighted video file, to protected memory and drives the display from the protected memory. If the graphical output lacks copy protection, the system discontinues the driving of the display from the protected memory. In particular, upon detecting a lack of copy protection in the graphical output, the system continues to drive the display from the protected memory during a grace period associated with the lack of protection in the graphical output. The system then discontinues driving of the display from the protected memory if protection of the graphical output does not resume during the grace period.