Multiple layer video encoding
    71.
    发明授权
    Multiple layer video encoding 有权
    多层视频编码

    公开(公告)号:US08705617B2

    公开(公告)日:2014-04-22

    申请号:US11527021

    申请日:2006-09-25

    IPC分类号: H04N11/04

    摘要: Certain embodiments disclosed herein provide systems and methods for processing multimedia data. The systems and methods comprise receiving a first set of quantized coefficients representing at least one video frame, receiving a second set of quantized coefficients representing the at least one video frame, and generating, using the first set of quantized coefficients and second set of quantized coefficients, a third set of quantized coefficients representing the at least one video frame. In certain embodiments, quantization parameters associated with the first and second sets are used in producing the third set of quantized coefficients.

    摘要翻译: 本文公开的某些实施例提供了用于处理多媒体数据的系统和方法。 所述系统和方法包括接收表示至少一个视频帧的第一组量化系数,接收表示所述至少一个视频帧的第二组量化系数,以及使用所述第一组量化系数和所述第二组量化系数 ,表示所述至少一个视频帧的第三组量化系数。 在某些实施例中,与第一和第二组相关联的量化参数用于产生第三组量化系数。

    Content-adaptive multimedia coding and physical layer modulation
    73.
    发明授权
    Content-adaptive multimedia coding and physical layer modulation 有权
    内容自适应多媒体编码和物理层调制

    公开(公告)号:US08493834B2

    公开(公告)日:2013-07-23

    申请号:US11622912

    申请日:2007-01-12

    IPC分类号: H04J9/00

    摘要: This disclosure describes content-adaptive coding and modulation techniques. In particular, this disclosure describes techniques in which both a multimedia coding mode and a physical layer modulation scheme are adaptively selected based on content of a multimedia sequence. When the content changes such that either the coding or the modulation scheme can be improved, the coding and/or modulation may be changed to better optimize to the changed content. In one aspect, this disclosure provides a method of processing multimedia data, the method comprising selecting a multimedia coding mode for an encoder to encode the multimedia data and a physical layer modulation scheme for transmission of the multimedia data based on content of the multimedia data.

    摘要翻译: 本公开描述了内容自适应编码和调制技术。 具体地,本公开描述了其中基于多媒体序列的内容自适应地选择多媒体编码模式和物理层调制方案的技术。 当内容改变使得可以改进编码或调制方案时,可以改变编码和/或调制以对改变的内容进行更好的优化。 一方面,本公开提供一种处理多媒体数据的方法,所述方法包括:选择用于编码器的多媒体编码模式以对所述多媒体数据进行编码,以及基于所述多媒体数据的内容来传输所述多媒体数据的物理层调制方案。

    MULTICASTING IN A WIRELESS DISPLAY SYSTEM
    74.
    发明申请
    MULTICASTING IN A WIRELESS DISPLAY SYSTEM 有权
    在无线显示系统中进行组合

    公开(公告)号:US20130139210A1

    公开(公告)日:2013-05-30

    申请号:US13482092

    申请日:2012-05-29

    IPC分类号: H04N21/6405

    摘要: This disclosure relates to techniques to establish a multicast communication session between a source device and multiple sink devices in a Wireless Display (WD) system. Two or more sink devices may be interested in receiving the same media data from the source device. According to the techniques, the source device establishes a multicast session with the sink devices in the WD system, and sends a single copy of multicast media data for the multicast session to the interested sink devices using a receiving multicast port. The source device selects a receiving multicast port number as a destination identifier for each multicast session. The sink devices interested in receiving the media data of a given multicast session bind on the receiving multicast port for the multicast session. This disclosure describes several exemplary multicast subscription procedures to ensure correct binding on the receiving multicast port at each of the sink devices.

    摘要翻译: 本公开涉及在无线显示(WD)系统中在源设备和多个宿设备之间建立组播通信会话的技术。 两个或多个宿设备可能感兴趣从源设备接收相同的媒体数据。 根据这些技术,源设备与WD系统中的宿设备建立组播会话,并使用接收组播端口将多播会话的组播媒体数据的单个副本发送给感兴趣的宿设备。 源设备选择接收多播端口号作为每个多播会话的目的地标识符。 对接收给定组播会话的媒体数据有兴趣的接收设备在组播会话的接收组播端口上进行绑定。 本公开描述了几种示例性多播订购过程,以确保在每个宿设备处的接收多播端口上的正确绑定。

    Mode selection techniques for multimedia coding
    75.
    发明授权
    Mode selection techniques for multimedia coding 有权
    多媒体编码模式选择技术

    公开(公告)号:US08446954B2

    公开(公告)日:2013-05-21

    申请号:US11509214

    申请日:2006-08-23

    IPC分类号: H04N7/12 H04N11/02

    摘要: This disclosure describes techniques for improving mode selection decisions during the encoding of macroblocks (or other blocks) of multimedia frames of a multimedia sequence. During motion estimation, the encoding modes for macroblocks can be determined so that a desirable encoding rate and acceptable levels of distortion (i.e., acceptable rate-distortion) can be achieved. The techniques may include selecting a set of multimedia coding modes between at least two sets of possible multimedia coding modes for a macroblock of a multimedia frame based on a detail metric associated with the macroblock and mode information associated with neighboring blocks to the macroblock.

    摘要翻译: 本公开描述了在多媒体序列的多媒体帧的宏块(或其他块)的编码期间改进模式选择决定的技术。 在运动估计期间,可以确定宏块的编码模式,使得可以实现期望的编码速率和可接受的失真水平(即,可接受的速率失真)。 这些技术可以包括基于与宏块相关联的细节度量和与宏块的相邻块相关联的模式信息,在多媒体帧的宏块的至少两组可能的多媒体编码模式之间选择一组多媒体编码模式。

    Local broadcast of data using available channels of a spectrum
    76.
    发明授权
    Local broadcast of data using available channels of a spectrum 有权
    使用频谱的可用频道进行本地数据广播

    公开(公告)号:US08374134B2

    公开(公告)日:2013-02-12

    申请号:US12547834

    申请日:2009-08-26

    IPC分类号: H04Q7/00

    摘要: In general, this disclosure relates to techniques for transmitting data for applications using one or more available channels of a spectrum. One example method comprises transforming data into a digital broadcast format, identifying at least one available channel of a spectrum, and transmitting the transformed data in the at least one identified available channel.

    摘要翻译: 通常,本公开涉及用于使用频谱的一个或多个可用信道来发送用于应用的数据的技术。 一个示例性方法包括将数据变换成数字广播格式,识别频谱的至少一个可用信道,以及在所述至少一个识别的可用信道中发送经变换的数据。

    USER INPUT BACK CHANNEL FOR WIRELESS DISPLAYS
    77.
    发明申请
    USER INPUT BACK CHANNEL FOR WIRELESS DISPLAYS 有权
    用户输入无线显示的后置通道

    公开(公告)号:US20130009996A1

    公开(公告)日:2013-01-10

    申请号:US13344424

    申请日:2012-01-05

    IPC分类号: G09G5/00 H04W88/02 G06F3/041

    摘要: As part of a communication session, a wireless source device can transmit audio and video data to a wireless sink device, and the wireless sink device can transmit user input data received at the wireless sink device back to the wireless source device. In this manner, a user of the wireless sink device can control the wireless source device and control the content that is being transmitted from the wireless source device to the wireless sink device. The input data received at the wireless sink device can have associated coordinate information that is scaled or normalized by either the wireless sink device or the wireless source device.

    摘要翻译: 作为通信会话的一部分,无线源设备可以将音频和视频数据传输到无线宿设备,并且无线宿设备可以将在无线宿设备处接收的用户输入数据发送回无线源设备。 以这种方式,无线接收设备的用户可以控制无线源设备并且控制正在从无线源设备发送到无线接收设备的内容。 在无线接收设备处接收的输入数据可以具有由无线接收设备或无线源设备缩放或归一化的相关联的坐标信息。

    Method and apparatus for determining an encoding method based on a distortion value related to error concealment
    79.
    发明授权
    Method and apparatus for determining an encoding method based on a distortion value related to error concealment 有权
    用于基于与错误隐藏相关的失真值来确定编码方法的方法和装置

    公开(公告)号:US08325822B2

    公开(公告)日:2012-12-04

    申请号:US11624459

    申请日:2007-01-18

    摘要: Methods and apparatuses to encode multimedia data enabling, among others, for example, improved decoded video quality, improved error recovery capabilities and/or improved decoding efficiency are described. An encoder device determines one or more distortion values for one or more portions of multimedia data based at least in part on one or more concealment methods related to concealing the one or more portions if the one or more portions were received in error. The encoder device determines one or more encoding methods for the one or more portions based at least in part on the one or more estimated distortion values. In one aspect, determining the one or more encoding methods comprises determining the one or more encoding methods so as to refresh the one or more portions based at least in part on a comparison of the one or more estimated distortion values and one or more thresholds.

    摘要翻译: 描述了编码多媒体数据的方法和装置,其能够例如改进的解码视频质量,改进的错误恢复能力和/或改进的解码效率。 至少部分地,如果一个或多个部分被错误地接收,则至少部分地基于与隐藏所述一个或多个部分有关的一个或多个隐藏方法来确定多媒体数据的一个或多个部分的一个或多个失真值。 编码器设备至少部分地基于一个或多个估计的失真值来确定一个或多个部分的一个或多个编码方法。 在一个方面,确定一个或多个编码方法包括确定一个或多个编码方法,以便至少部分地基于一个或多个估计失真值与一个或多个阈值的比较来刷新该一个或多个部分。