公开(公告)号：WO2017053432A1

公开(公告)日：2017-03-30

申请号：PCT/US2016/052890

申请日：2016-09-21

Applicant: VID SCALE, INC.

Inventor： KEROFSKY, Louis ,  HE, Yuwen ,  YE, Yan ,  VOSOUGHI, Arash

IPC: H04N19/98 ,  G06T5/00

CPC classification number: H04N19/98 ,  H04N19/70

Abstract: Systems, methods, and instrumentalities are disclosed for inverse shaping for high dynamic range (HDR) video coding. A video coding device, e.g., such as a decoder, may determine a plurality of pivot points associated with a plurality of piecewise segments of an inverse reshaping model. The plurality of pivot points may be determined based on an indication received via a message. Each piecewise segment may be defined by a plurality of coefficients. The video coding device may receive an indication of a first subset of coefficients associated with the plurality of piecewise segments. The video coding device may calculate a second subset of coefficients based on the first subset of coefficients and the plurality of pivot points. The video coding device may generate an inverse reshaping model using one or more of the plurality of pivot points, the first subset of coefficients, and the second subset of coefficients.

Abstract translation: 公开了用于高动态范围（HDR）视频编码的逆整形的系统，方法和手段。 视频编码装置，例如解码器，可以确定与逆重塑模型的多个分段段相关联的多个枢转点。 可以基于经由消息接收到的指示来确定多个枢轴点。 每个分段可以由多个系数定义。 视频编码设备可以接收与多个分段段相关联的系数的第一子集的指示。 视频编码设备可以基于系数的第一子集和多个枢轴点来计算系数的第二子集。 视频编码设备可以使用多个枢轴点中的一个或多个，系数的第一子集和系数的第二子集来生成逆重整模型。

公开(公告)号：WO2017020021A1

公开(公告)日：2017-02-02

申请号：PCT/US2016/044909

申请日：2016-07-29

Applicant: VID SCALE, INC.

Inventor： GUDUMASU, Srinivas ,  HE, Yuwen ,  YE, Yan

IPC: H04N19/30 ,  H04N19/187 ,  H04N19/40 ,  H04N19/14 ,  H04N19/147

CPC classification number: H04N19/40 ,  H04N19/14 ,  H04N19/147 ,  H04N19/187 ,  H04N19/30

Abstract: Systems, methods, and instrumentalities are provided for reusing coding information extracted from SHVC bitstream during transcoding process, refining the coding information, and/or using the refined coding information in transcoding. A first bitstream, such as an SHVC bitstream that may include a base layer and/or one or more enhancement layers, may be received. Coding information, such as coding unit depth, coding unit prediction mode, motion information, intra direction mode, and/or transform unit depth may be extracted from the first bitstream. The first bitstream can be transcoded into a second bitstream (e.g., such as an HEVC bitstream) by refining and/or reusing at least part of the extracted coding information. The transcoder can adaptively select a coding information reuse transcoding mode from one or more, or a plurality, of transcoding modes, perhaps for example based on video signal characteristics.

Abstract translation: 提供了系统，方法和手段，用于在代码转换过程中重用从SHVC比特流提取的编码信息，改进编码信息，和/或在转码中使用精细编码信息。 可以接收第一比特流，诸如可以包括基本层和/或一个或多个增强层的SHVC比特流。 可以从第一比特流中提取诸如编码单元深度，编码单元预测模式，运动信息，帧内方向模式和/或变换单元深度的编码信息。 可以通过精简和/或重用所提取的编码信息的至少一部分，将第一比特流转码为第二比特流（例如，诸如HEVC比特流）。 代码转换器可以例如基于视频信号特征，自适应地从一个或多个或多个或多个代码转换模式中选择编码信息重用代码转换模式。

公开(公告)号：WO2017011274A1

公开(公告)日：2017-01-19

申请号：PCT/US2016/041397

申请日：2016-07-07

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： ZHANG, Guodong ,  LOU, Hanqing ,  OTERI, Oghenekome ,  WANG, Xiaofei ,  XI, Fengjun ,  OLESEN, Robert, L. ,  LA SITA, Frank ,  GHOSH, Monisha

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L5/0094 ,  H04L5/0007 ,  H04L27/2602

Abstract: Systems, methods, and instrumentalities are disclosed for SIG Design for OFDMA in WLAN Systems. A protocol data unit (PDU), e.g. , a medium access control (MAC) PDU, may be transmitted. Data may be mapped to a plurality of OFDM symbols of the PDU. Each of the plurality of OFDM symbols may be associated with a first duration and a first length of data. A second length of data to be transmitted in a last OFDM symbol of the plurality of OFDM symbols may be determined to be less than the first length of data. The last OFDM symbol may be modified, for example, based on the second length of data, from the first duration to a second duration. The second duration may be ¼, ½, or ¾ of the first duration. An indication of the second duration of the last OFDM symbol may be sent.

Abstract translation: 系统，方法和工具被披露用于WLAN系统中OFDMA的SIG Design。 可以发送协议数据单元（PDU），例如介质访问控制（MAC）PDU。 数据可以映射到PDU的多个OFDM符号。 多个OFDM符号中的每一个可以与第一持续时间和第一长度的数据相关联。 可以将在多个OFDM符号的最后OFDM符号中要发送的第二长度的数据确定为小于第一数据长度。 例如，可以基于第二长度的数据，从第一持续时间到第二持续时间来修改最后的OFDM符号。 第二持续时间可以是第一持续时间的¼，½或¾。 可以发送最后一个OFDM符号的第二持续时间的指示。

公开(公告)号：WO2017004196A1

公开(公告)日：2017-01-05

申请号：PCT/US2016/040085

申请日：2016-06-29

Applicant: VID SCALE, INC.

Inventor： BALAZINSKI, Bartosz ,  LI, Jun ,  PURKAYASTHA, Debashish

IPC: H04L29/06 ,  H04N21/231

CPC classification number: H04L67/2842 ,  H04L65/4084 ,  H04L65/608 ,  H04L67/02 ,  H04N21/23106 ,  H04N21/64322

Abstract: Systems, methods, and instrumentalities are disclosed for media caching proxy techniques (e.g., applications) that enable caching of multimedia content delivered, for example, using the Dynamic Adaptive Streaming over HTTP (DASH) protocol. A request may be received from a client for a media presentation description (MPD) file relating to media content. The media content may comprise a plurality of media segments. An MPD file may be received from cache. A subset of the plurality of media segments of the media content stored within the cache may be determined. An available bandwidth on a backhaul link may be determined. A dynamic MPD file may be generated based on the MPD file, the subset of the plurality of media segments of the media content that is stored within the cache of the middle box platform, and/or the available bandwidth on the backhaul link. The dynamic MPD file may be transmitted to the client.

Abstract translation: 公开了用于媒体缓存代理技术（例如，应用程序）的系统，方法和工具，其能够缓存例如使用基于HTTP的动态自适应流（DASH）协议传递的多媒体内容。 可以从客户端接收关于媒体内容的媒体呈现描述（MPD）文件的请求。 媒体内容可以包括多个媒体段。 可以从高速缓存接收MPD文件。 可以确定存储在高速缓存内的媒体内容的多个媒体段的子集。 可以确定回程链路上的可用带宽。 可以基于MPD文件，存储在中间箱平台的高速缓存中的媒体内容的多个媒体段的子集和/或回程链路上的可用带宽来生成动态MPD文件。 动态MPD文件可以传送给客户机。

公开(公告)号：WO2016200984A1

公开(公告)日：2016-12-15

申请号：PCT/US2016/036497

申请日：2016-06-08

Applicant: VID SCALE, INC.

Inventor： XIU, Xiaoyu ,  YE, Yan ,  HE, Yuwen

IPC: H04N19/593

CPC classification number: H04N19/176 ,  H04N19/126 ,  H04N19/184 ,  H04N19/186 ,  H04N19/593

Abstract: A video block of a current picture may be coded in an intra block copy (IBC) mode. Weighted prediction may be disabled for the IBC-coded screen content video block. Fractional block vectors may be used for the chroma components of the IBC-coded video block. An interpolation filter may be utilized to generate chroma prediction samples for the video block. A decoded version of the current reference picture may be added to both reference picture list LO and reference picture list LI that are associated with the IBC-coded video block. When constrained intra prediction is applied, reference samples that may be used to predict an intra- coded video block may be limited to those in intra-coded neighboring blocks. The range of IBC searches may be restricted by imposing a maximum absolute value for block vectors.

Abstract translation: 当前图像的视频块可以以帧内复制（IBC）模式进行编码。 对于IBC编码的屏幕内容视频块，加权预测可被禁用。 分数块向量可以用于IBC编码视频块的色度分量。 可以使用内插滤波器来生成视频块的色度预测样本。 可以将当前参考图像的解码版本添加到与IBC编码视频块相关联的参考图像列表LO和参考图像列表LI。 当应用约束帧内预测时，可以用于预测帧内编码视频块的参考样本可以限于帧内编码的相邻块中的参考样本。 可以通过对块向量施加最大绝对值来限制IBC搜索的范围。

公开(公告)号：WO2016197004A2

公开(公告)日：2016-12-08

申请号：PCT/US2016/035839

申请日：2016-06-03

Applicant: VID SCALE, INC.

Inventor： BALASUBRAMANIAN, Anantharaman ,  MA, Liangping ,  TROSSEN, Dirk

IPC: H04L12/721 ,  H04L12/741 ,  H04L12/707 ,  H04L12/717 ,  H04L12/803 ,  H04L12/891 ,  H04L12/863 ,  H04L12/801

CPC classification number: H04L45/42 ,  H04L45/24 ,  H04L45/38 ,  H04L45/54 ,  H04L45/566 ,  H04L45/74 ,  H04L47/11 ,  H04L47/122 ,  H04L47/41 ,  H04L47/6255

Abstract: Systems, methods, and instrumentalities are disclosed for enhancing performance of multi-path communications. Multi-path communication performance may be enhanced by determining whether multi-path communications share a congested router. A multi-path real-time communication protocol may provide techniques to prevent, detect, communicate and respond to a shared congested router. A shared congested router may be prevented, and/or detected using one or more detection techniques.

Abstract translation: 公开了用于增强多径通信性能的系统，方法和工具。 通过确定多路径通信是否共享拥塞的路由器，可以增强多径通信性能。 多路径实时通信协议可以提供防止，检测，通信和响应共享拥塞路由器的技术。 可以使用一种或多种检测技术来防止和/或检测共享的拥塞路由器。

公开(公告)号：WO2016172361A1

公开(公告)日：2016-10-27

申请号：PCT/US2016/028678

申请日：2016-04-21

Applicant: VID SCALE, INC.

Inventor： HE, Yuwen ,  YE, Yan ,  KEROFSKY, Louis ,  VOSOUGHI, Arash ,  NEFF, Ralph

IPC: H04N19/124 ,  H04N19/157 ,  H04N19/186 ,  H04N19/31 ,  H04N19/82 ,  H04N19/14

CPC classification number: H04N19/124 ,  H04N19/14 ,  H04N19/157 ,  H04N19/186 ,  H04N19/31 ,  H04N19/82

Abstract: A video sequence may include a first-temporal level picture and a second-temporal level picture. The first-temporal level picture may be associated with a first temporal level, and the second-temporal level picture may be associated with a second temporal level. The second- temporal level picture may reference the first-temporal level picture. A first chroma quantization parameter (QP) may be determined based on a temporal level of the first-temporal level picture. A second chrom a QP may be determined based on a temporal level of the second-temporal level picture. The first-temporal level picture may be encoded based on the first chroma QP to the first-temporal level picture and/or the second-temporal level picture may be encoded based on the second chroma QP to the second-temporal level picture. The first chroma QP may be different than the second chroma QP.

Abstract translation: 视频序列可以包括第一时间电平图像和第二时间电平图像。 第一时间电平图像可以与第一时间电平相关联，并且第二时间电平图像可以与第二时间电平相关联。 第二时间电平图像可以参考第一时间电平图像。 可以基于第一时间级别图像的时间级别来确定第一色度量化参数（QP）。 可以基于第二时间级别图像的时间级别来确定第二chrom a QP。 第一时间电平图像可以基于第一时间电平图像的第一色度QP和/或第二时间电平图像被编码，基于第二色度QP到第二时间电平图像。 第一色度QP可以不同于第二色度QP。

公开(公告)号：WO2016164584A1

公开(公告)日：2016-10-13

申请号：PCT/US2016/026442

申请日：2016-04-07

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： TOOHER, Patrick, J. ,  STERN-BERKOWITZ, Janet, A. ,  SADEGHI, Pouriya ,  LEE, Moon-il ,  RUDOLD, Marian

IPC: H04W74/08 ,  H04W72/12

CPC classification number: H04W72/042 ,  H04W16/14 ,  H04W72/1215 ,  H04W74/0808

Abstract: Systems, devices, and methods are disclosed for determining one or more clear channel assessment occasions. Techniques include performing one or more clear channel assessment (CCA) processes on a channel during the one or more CCA occasions to determine whether the channel is available at the one or more CCA occasion based on the one or more CCA processes. Techniques include sending the UL transmission in one or more UL subframes via the channel on at least a condition that the channel is determined to be available at the one or more CCA occasions. Techniques include performing the one or more CCA processes on the channel during another of the one or more CCA occasions on at least a condition that the channel is determined to be unavailable at a previous CCA occasion.

Abstract translation: 公开了用于确定一个或多个清除信道评估场合的系统，设备和方法。 技术包括在一个或多个CCA场合期间在信道上执行一个或多个清除信道评估（CCA）处理，以基于一个或多个CCA过程来确定该信道在一个或多个CCA场合是否可用。 技术包括至少在通道被确定为在一个或多个CCA场合可用的条件下经由信道在一个或多个UL子帧中发送UL传输。 技术包括在至少一个在先前的CCA场合被确定为不可用的条件的条件下，在一个或多个CCA场合的另一个期间在该信道上执行一个或多个CCA过程。

公开(公告)号：WO2016118843A1

公开(公告)日：2016-07-28

申请号：PCT/US2016/014495

申请日：2016-01-22

Applicant: PCMS HOLDINGS, INC.

Inventor： AALTONEN, Janne

IPC: G06Q30/02

CPC classification number: G06Q30/0283 ,  G06Q30/0201 ,  G06Q30/0242 ,  G06Q30/0247 ,  G06Q30/0267 ,  G06Q30/0272 ,  G06Q30/0273

Abstract: Systems and/or methods for determining an effective viewing time of an advertisement displayed on a device such that a price for the advertisement may be based on the effective viewing time may be provided. For example, first movement data based on a first movement of the device may be measured or determined. A time of displaying the advertisement on the device may be measured or determined, for example. During the time of displaying the advertisement, second movement data based on a second movement of the device may be measured and/or determined. The first movement data, the second movement data, and/or the time to an advertisement service may be sent (e.g., to an advertisement service) such that the effective viewing time for the advertisement and/or the price based thereon may be calculated or determined based on the first movement data, the second movement data, and/or the time.

Abstract translation: 可以提供用于确定在设备上显示的广告的有效观看时间的系统和/或方法，使得广告的价格可以基于有效的观看时间。 例如，可以测量或确定基于设备的第一移动的第一移动数据。 例如，可以测量或确定在设备上显示广告的时间。 在显示广告的时间期间，可以测量和/或确定基于设备的第二移动的第二移动数据。 可以将第一移动数据，第二移动数据和/或广告服务的时间发送（例如，到广告服务），使得可以计算广告的有效观看时间和/或基于其的价格， 基于第一移动数据，第二移动数据和/或时间确定。

公开(公告)号：WO2016112306A1

公开(公告)日：2016-07-14

申请号：PCT/US2016/012674

申请日：2016-01-08

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： OTERI, Oghenekome ,  JIN, Yuan, Sheng ,  LOU, Hanqing ,  WANG, Xiaofei ,  OLESEN, Robert, L.

IPC: H04L5/00 ,  H04W72/12 ,  H04W84/12

CPC classification number: H04L5/0073 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/0094 ,  H04W24/02 ,  H04W72/082 ,  H04W72/1215 ,  H04W84/12 ,  H04W88/06

Abstract: Systems, methods and instrumentalities are disclosed to transmission scheduling. A station (STA) in its own basic service set (BSS) receiving a transmission frame from an overlapping BSS (OBSS). The STA may decode preamble of the received transmission frame. The STA may determine, for example, using the decoded preamble that OBSS information and transmit scheme associated with the OBSS. On a condition that the transmit scheme associated with the OBSS is orthogonal frequency divisional multiple access (OFDMA), the STA in its own BSS may indicate to its access point (AP) that one or more channels or sub-channels that are available or not available for transmission. On a condition that the transmit scheme determined from the preamble of the transmission frame is orthogonal frequency divisional multiplexing (OFDM), the STA may determine that a channel is not available for transmission. The STA may set the channel to busy or idle.

Abstract translation: 系统，方法和手段被公开用于传输调度。 在其自己的基本业务集（BSS）中的站（STA）从重叠BSS（OBSS）接收传输帧。 STA可以解码所接收的传输帧的前同步码。 STA可以例如使用解码的前导码来确定与OBSS相关联的OBSS信息和发送方案。 在与OBSS相关联的发送方案是正交频分多址（OFDMA）的情况下，其自己的BSS中的STA可以向其接入点（AP）指示可用或不可用的一个或多个信道或子信道 可用于传输。 在从发送帧的前导码确定的发送方案是正交频分复用（OFDM）的情况下，STA可以确定信道不可用于发送。 STA可以将信道设置为忙或空闲。