Method for setting multicast and broadcast service in broadband wireless access system
    1.
    发明申请
    Method for setting multicast and broadcast service in broadband wireless access system 审中-公开
    宽带无线接入系统中组播广播业务的设置方法

    公开(公告)号:US20070189162A1

    公开(公告)日:2007-08-16

    申请号:US11636832

    申请日:2006-12-11

    IPC分类号: H04L12/26

    摘要: A method for setting a multicast and broadcast service (MBS) of a broadband wireless access system includes: previously receiving and storing the information on the MBS setting from a MBS server by a radio access station; and broadcasting the information on the MBS setting stored in the PSS, which exists in the service area of the radio access station, by the radio access station. In the step of broadcasting the information on the MBS setting, a preset pilot tone, uplink/downlink information, or the sub-carriers unused in bandwidth of the system are used for broadcasting the information.

    摘要翻译: 一种用于设置宽带无线接入系统的组播广播业务(MBS)的方法,包括:先前通过无线接入站从MBS服务器接收并存储有关MBS设置的信息; 并且通过无线电接入站广播存在于无线电接入站的服务区域中的PSS中存储的MBS设置上的信息。 在广播MBS设置的信息的步骤中,使用预先设定的导频音,上行链路/下行链路信息,或系统带宽中未使用的子载波来广播该信息。

    System and method for digital multimedia broadcasting confinement service
    2.
    发明授权
    System and method for digital multimedia broadcasting confinement service 有权
    数字多媒体广播约束服务的系统和方法

    公开(公告)号:US07873072B2

    公开(公告)日:2011-01-18

    申请号:US11636932

    申请日:2006-12-11

    IPC分类号: H04J3/16

    摘要: Disclosed are a system and method for providing digital multimedia broadcasting confinement service. The system includes: a relay center side system, which is adopted to the relay center, according to the relay center side packet identification description (PID) key, for modifying the PID of transport stream and generating the distorted program specific information (PSI); and a terminal side system, which is adopted to the DMB terminal, according to the terminal side PID key, for recovering the distorted PSI of the transport stream received from the relay center and decoding it. The method includes the steps of: identifying whether the actual PID of the TS is consistent when the TS is demultiplexed by audio/video PID acquired through the program map table (PMT) analysis of the TS; generating a preset alarm signal; modifying the PID of the audio/video data in the PMT according to the terminal side PID; and demultiplexing the TS according to the modified PID value.

    摘要翻译: 公开了一种用于提供数字多媒体广播限制服务的系统和方法。 该系统包括:根据中继中心侧分组识别描述(PID)密钥对继电器中心采用的中继侧系统,用于修改传输流的PID并产生失真的程序特定信息(PSI); 以及根据终端侧PID密钥被用于DMB终端的终端侧系统,用于恢复从中继中心接收的传输流的失真PSI并对其进行解码。 该方法包括以下步骤:当通过TS的节目映射表(PMT)分析获得的音频/视频PID解复用TS时,识别TS的实际PID是否一致; 产生预设的报警信号; 根据终端侧PID修改PMT中的音频/视频数据的PID; 并根据修改的PID值解复用TS。

    System and method for digital multimedia broadcasting confinement service
    3.
    发明申请
    System and method for digital multimedia broadcasting confinement service 有权
    数字多媒体广播约束服务的系统和方法

    公开(公告)号:US20070183454A1

    公开(公告)日:2007-08-09

    申请号:US11636932

    申请日:2006-12-11

    IPC分类号: H04H1/04

    摘要: Disclosed are a system and method for providing digital multimedia broadcasting confinement service. The system includes: a relay center side system, which is adopted to the relay center, according to the relay center side packet identification description (PID) key, for modifying the PID of transport stream and generating the distorted program specific information (PSI); and a terminal side system, which is adopted to the DMB terminal, according to the terminal side PID key, for recovering the distorted PSI of the transport stream received from the relay center and decoding it. The method includes the steps of: identifying whether the actual PID of the TS is consistent when the TS is demultiplexed by audio/video PID acquired through the program map table (PMT) analysis of the TS; generating a preset alarm signal; modifying the PID of the audio/video data in the PMT according to the terminal side PID; and demultiplexing the TS according to the modified PID value.

    摘要翻译: 公开了一种用于提供数字多媒体广播限制服务的系统和方法。 该系统包括:根据中继侧分组识别描述(PID)密钥对继电器中心采用的中继侧系统,用于修改传输流的PID并产生失真的程序特定信息(PSI); 以及根据终端侧PID密钥被用于DMB终端的终端侧系统,用于恢复从中继中心接收的传输流的失真PSI并对其进行解码。 该方法包括以下步骤:当通过TS的节目映射表(PMT)分析获得的音频/视频PID解复用TS时,识别TS的实际PID是否一致; 产生预设的报警信号; 根据终端侧PID修改PMT中的音频/视频数据的PID; 并根据修改的PID值解复用TS。

    Digital broadcast transmission/reception apparatus for rapid channel change
    4.
    发明申请
    Digital broadcast transmission/reception apparatus for rapid channel change 有权
    用于快速频道改变的数字广播发送/接收装置

    公开(公告)号:US20070130612A1

    公开(公告)日:2007-06-07

    申请号:US11505082

    申请日:2006-08-16

    IPC分类号: H04N7/16

    摘要: Disclosed is a digital broadcasting transmission apparatus for rapid channel change to an A/V stream of a predetermined channel, the apparatus including a program specific information (PSI) generation unit for generating PSI of the A/V stream, a PSI length detection unit for detecting a length of the PSI generated by the PSI generation unit; a channel information (CI) generation unit for generating CI which includes PSI of all digital broadcasting channels input to the digital broadcasting transmission apparatus, a CI insertion unit for dividing and inserting the CI generated by the CI generation unit into a PSI transmission area generated by the PSI generation unit, according to the length information detected by the PSI length detection unit, and a transport stream (TS) multiplexing unit for multiplexing and outputting the A/V stream and an output of the CI insertion unit.

    摘要翻译: 公开了一种数字广播传输装置,用于将信道快速切换到预定信道的A / V流,该装置包括用于产生A / V流的PSI的节目专用信息(PSI)生成单元,PSI长度检测单元,用于 检测由PSI生成单元生成的PSI的长度; 用于产生CI的信道信息(CI)生成单元,其包括输入到数字广播发送装置的所有数字广播信道的PSI; CI插入单元,用于将由CI生成单元生成的CI分割和插入到由 PSI生成单元,根据由PSI长度检测单元检测出的长度信息,以及用于复用和输出A / V流的传输流(TS)复用单元和CI插入单元的输出。

    Digital broadcast transmission/reception apparatus for rapid channel change
    5.
    发明授权
    Digital broadcast transmission/reception apparatus for rapid channel change 有权
    用于快速频道改变的数字广播发送/接收装置

    公开(公告)号:US08532146B2

    公开(公告)日:2013-09-10

    申请号:US11505082

    申请日:2006-08-16

    IPC分类号: H04H20/28

    摘要: Disclosed is a digital broadcasting transmission apparatus for rapid channel change to an A/V stream of a predetermined channel, the apparatus including a program specific information (PSI) generation unit for generating PSI of the A/V stream, a PSI length detection unit for detecting a length of the PSI generated by the PSI generation unit; a channel information (CI) generation unit for generating CI which includes PSI of all digital broadcasting channels input to the digital broadcasting transmission apparatus, a CI insertion unit for dividing and inserting the CI generated by the CI generation unit into a PSI transmission area generated by the PSI generation unit, according to the length information detected by the PSI length detection unit, and a transport stream (TS) multiplexing unit for multiplexing and outputting the A/V stream and an output of the CI insertion unit.

    摘要翻译: 公开了一种数字广播传输装置,用于将信道快速切换到预定信道的A / V流,该装置包括用于产生A / V流的PSI的节目专用信息(PSI)生成单元,PSI长度检测单元,用于 检测由PSI生成单元生成的PSI的长度; 用于产生CI的信道信息(CI)生成单元,其包括输入到数字广播发送装置的所有数字广播信道的PSI; CI插入单元,用于将由CI生成单元生成的CI分割和插入到由 PSI生成单元,根据由PSI长度检测单元检测出的长度信息,以及用于复用和输出A / V流的传输流(TS)复用单元和CI插入单元的输出。

    Broadcast splitter enabling selective transmission in real time
    6.
    发明申请
    Broadcast splitter enabling selective transmission in real time 审中-公开
    广播分路器实时选择传输

    公开(公告)号:US20060159093A1

    公开(公告)日:2006-07-20

    申请号:US11336009

    申请日:2006-01-20

    IPC分类号: H04L12/56

    摘要: Disclosed is a broadcast splitter enabling a selective transmission in real time. The broadcast splitter divides one multi-program transport stream (MPTS), which is obtained by multiplexing motion picture expert group-2 transport streams (MPEG-2TSs), into several single program transport streams (SPTSs). In particular, the broadcast splitter for MPEG-2TSs has a function of selecting a desired SPTS by performing a switching operation with respect to an MPTS in real-time without storing the MPTS when the MPTS is split into several SPTSs. Accordingly, it is possible to transmit MPTS signals in real time because desired TSs are extracted and delivered to output ports in real time by using a broadcast switch without storing the MPTS signals in a storage unit such as a RAM.

    摘要翻译: 公开了能实时选择性传输的广播分路器。 广播分组器将通过将运动图像专家组2传输流(MPEG-2TS)复用到多个单个节目传输流(SPTS)中获得的一个多节目传输流(MPTS)分割。 特别地,MPEG-2TS的广播分离器具有通过在MPTS被分割成多个SPTS时实时地执行MPTS的切换操作而不存储MPTS的情况下选择所需的SPTS的功能。 因此,可以实时地发送MPTS信号,因为通过使用广播开关实时提取所需的TS并将其传送到输出端口,而不将MPTS信号存储在诸如RAM的存储单元中。

    Method for error concealment in decoding of moving picture and decoding apparatus using the same
    7.
    发明授权
    Method for error concealment in decoding of moving picture and decoding apparatus using the same 有权
    运动图像解码中的误差隐藏方法及使用该方法的解码装置

    公开(公告)号:US08199817B2

    公开(公告)日:2012-06-12

    申请号:US11901589

    申请日:2007-09-18

    IPC分类号: H04N11/02 H04N7/12

    CPC分类号: H04N19/61 H04N19/895

    摘要: A method and apparatus for error concealment in decoding of a moving picture. The method includes the steps of determining an erroneous macro block in a present frame when the moving picture is decoded, finding a first macro block having a highest similarity to the erroneous macro block and a second macro block having a next highest similarity to the erroneous block in a previous frame by comparing adjacent pixels of respective blocks in the previous frame with adjacent pixels of the erroneous block in the present frame; and replacing the erroneous block by using an average between the found macro blocks having the highest similarity and the second highest similarity to thereby conceal the erroneous macro block. The apparatus includes a parser, an entropy decoder, an inverse quantizer, an inverse converter, and a concealment unit that uses motion compensation from a previous frame to correct a macro block in a current frame.

    摘要翻译: 一种用于运动图像解码中的错误隐藏的方法和装置。 该方法包括以下步骤:当解码运动图像时,确定当前帧中的错误宏块,找到与错误宏块具有最高相似度的第一宏块和与错误块具有次高相似性的第二宏块 在前一帧中通过将前一帧中的各个块的相邻像素与当前帧中的错误块的相邻像素进行比较; 并且通过使用具有最高相似度的所找到的宏块与第二高相似度之间的平均值来替换错误块,从而隐藏错误的宏块。 该装置包括解析器,熵解码器,逆量化器,逆变换器和隐藏单元,其使用来自前一帧的运动补偿来校正当前帧中的宏块。

    Method for error concealment in decoding of moving picture and decoding apparatus using the same
    8.
    发明申请
    Method for error concealment in decoding of moving picture and decoding apparatus using the same 有权
    运动图像解码中的误差隐藏方法及使用该方法的解码装置

    公开(公告)号:US20080080623A1

    公开(公告)日:2008-04-03

    申请号:US11901589

    申请日:2007-09-18

    IPC分类号: H04B1/66

    CPC分类号: H04N19/61 H04N19/895

    摘要: A method and apparatus for error concealment in decoding of a moving picture. The method includes the steps of determining an erroneous macro block in a present frame when the moving picture is decoded, finding a first macro block having a highest similarity to the erroneous macro block and a second macro block having a next highest similarity to the erroneous block in a previous frame by comparing adjacent pixels of respective blocks in the previous frame with adjacent pixels of the erroneous block in the present frame; and replacing the erroneous block by using an average between the found macro blocks having the highest similarity and the second highest similarity to thereby conceal the erroneous macro block. The apparatus includes a parser, an entropy decoder, an inverse quantizer, an inverse converter, and a concealment unit that uses motion compensation from a previous frame to correct a macro block in a current frame.

    摘要翻译: 一种用于运动图像解码中的错误隐藏的方法和装置。 该方法包括以下步骤:当解码运动图像时,确定当前帧中的错误宏块,找到与错误宏块具有最高相似度的第一宏块和与错误块具有次高相似性的第二宏块 在前一帧中通过将前一帧中的各个块的相邻像素与当前帧中的错误块的相邻像素进行比较; 并且通过使用具有最高相似度的所找到的宏块与第二高相似度之间的平均值来替换错误块,从而隐藏错误的宏块。 该装置包括解析器,熵解码器,逆量化器,逆变换器和隐藏单元,其使用来自前一帧的运动补偿来校正当前帧中的宏块。

    System and method for transmitting digital video stream using SVC scheme
    9.
    发明申请
    System and method for transmitting digital video stream using SVC scheme 有权
    使用SVC方案传输数字视频流的系统和方法

    公开(公告)号:US20070116129A1

    公开(公告)日:2007-05-24

    申请号:US11523510

    申请日:2006-09-19

    IPC分类号: H04N11/02 H04N7/12

    摘要: Disclosed is a system for transmitting a digital video stream, which supports decoding of a scalable video coding (SVC) scheme, the system includes a transmission terminal and a reception terminal, wherein the transmission terminal includes an encoder for encoding a high-definition digital video stream and a division transmission unit for dividing the high-definition video stream having a predetermined time unit into a first divided high-definition video stream and a second divided high-definition video stream by reducing a frame rate and for transmitting the first and second divided high-definition video streams, and the reception terminal includes a transmission coupling unit for receiving the first and second divided high-definition video streams transmitted from the transmission terminal, coupling the received streams according to validity thereof, and transmitting the received streams as a reception high-definition digital video stream; and a decoder for decoding the reception high-definition digital video stream transmitted from the transmission coupling unit.

    摘要翻译: 公开了一种用于发送支持可缩放视频编码(SVC)方案的解码的数字视频流的系统,该系统包括发送终端和接收终端,其中发送终端包括用于对高分辨率数字视频进行编码的编码器 流和分割发送单元,用于通过减少帧速率将具有预定时间单位的高清晰度视频流划分为第一分割高分辨率视频流和第二分割高分辨率视频流,并且用于发送第一和第二分割高清视频流 高清晰度视频流,并且接收终端包括:传输耦合单元,用于接收从发送终端发送的第一和第二划分的高清晰度视频流,根据其有效性耦合接收的流,并将接收的流作为接收发送 高清数字视频流; 以及用于解码从传输耦合单元发送的接收高分辨率数字视频流的解码器。

    System and method for transmitting digital video stream using SVC scheme
    10.
    发明授权
    System and method for transmitting digital video stream using SVC scheme 有权
    使用SVC方案传输数字视频流的系统和方法

    公开(公告)号:US08526505B2

    公开(公告)日:2013-09-03

    申请号:US11523510

    申请日:2006-09-19

    IPC分类号: H04N7/12

    摘要: Disclosed is a system for transmitting a digital video stream, which supports decoding of a scalable video coding (SVC) scheme, the system includes a transmission terminal and a reception terminal, wherein the transmission terminal includes an encoder for encoding a high-definition digital video stream and a division transmission unit for dividing the high-definition video stream having a predetermined time unit into a first divided high-definition video stream and a second divided high-definition video stream by reducing a frame rate and for transmitting the first and second divided high-definition video streams, and the reception terminal includes a transmission coupling unit for receiving the first and second divided high-definition video streams transmitted from the transmission terminal, coupling the received streams according to validity thereof, and transmitting the received streams as a reception high-definition digital video stream; and a decoder for decoding the reception high-definition digital video stream transmitted from the transmission coupling unit.

    摘要翻译: 公开了一种用于发送数字视频流的系统,其支持可缩放视频编码(SVC)方案的解码,该系统包括传输终端和接收终端,其中传输终端包括用于对高分辨率数字视频进行编码的编码器 流和分割发送单元,用于通过减少帧速率将具有预定时间单位的高清晰度视频流划分为第一分割高分辨率视频流和第二分割高分辨率视频流,并且用于发送第一和第二分割高清视频流 高清晰度视频流,并且接收终端包括:传输耦合单元,用于接收从发送终端发送的第一和第二划分的高清晰度视频流,根据其有效性耦合接收的流,并将接收的流作为接收发送 高清数字视频流; 以及用于解码从传输耦合单元发送的接收高分辨率数字视频流的解码器。