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。

    Method and apparatus for adjusting output bit rate of video packet
    2.
    发明授权
    Method and apparatus for adjusting output bit rate of video packet 有权
    调整视频数据包输出比特率的方法和装置

    公开(公告)号:US07623470B2

    公开(公告)日:2009-11-24

    申请号:US11593905

    申请日:2006-11-07

    IPC分类号: H04J1/16 H04N5/04

    CPC分类号: H04N21/44004 H04N21/23406

    摘要: An apparatus for adjusting an output bit rate of a TS packet includes: a TS processing unit for processing the TS packet; an output buffer for buffering and outputting TS packets processed by the TS processing unit; and a bit rate adjustment unit for separating a counting value of packet output time into an integral part and a decimal part by a preset reference cipher according to ticks, generating TS packet output signals for outputting one TS packet stored in the output buffer if a value obtained by performing first counting according to the ticks reaches a value of the integral part, resetting a first count value, and decreasing the first count value by one if a carry occurs in a value obtained by performing second counting for achieving an increment by the value of the stored decimal part whenever the TS packet output signals are generated.

    摘要翻译: 用于调整TS分组的输出比特率的装置包括:TS处理单元,用于处理TS分组; 用于缓冲和输出由TS处理单元处理的TS分组的输出缓冲器; 以及比特率调整单元,用于根据刻度将分组输出时间的计数值分解为整数部分和小数部分,并产生用于输出存储在输出缓冲器中的一个TS分组的TS分组输出信号,如果值 通过根据刻度执行第一计数获得的值达到积分部分的值,复位第一计数值,并且如果在通过执行第二计数而获得的值中进行进位而将第一计数值减1, 每当产生TS分组输出信号时,存储的小数部分。

    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。

    System and method for digital multimedia broadcasting confinement service
    5.
    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。

    Method and apparatus for adjusting output bit rate of video packet
    6.
    发明申请
    Method and apparatus for adjusting output bit rate of video packet 有权
    调整视频数据包输出比特率的方法和装置

    公开(公告)号:US20070189183A1

    公开(公告)日:2007-08-16

    申请号:US11593905

    申请日:2006-11-07

    IPC分类号: H04J1/16

    CPC分类号: H04N21/44004 H04N21/23406

    摘要: An apparatus for adjusting an output bit rate of a TS packet includes: a TS processing unit for processing the TS packet; an output buffer for buffering and outputting TS packets processed by the TS processing unit; and a bit rate adjustment unit for separating a counting value of packet output time into an integral part and a decimal part by a preset reference cipher according to ticks, generating TS packet output signals for outputting one TS packet stored in the output buffer if a value obtained by performing first counting according to the ticks reaches a value of the integral part, resetting a first count value, and decreasing the first count value by one if a carry occurs in a value obtained by performing second counting for achieving an increment by the value of the stored decimal part whenever the TS packet output signals are generated.

    摘要翻译: 用于调整TS分组的输出比特率的装置包括:TS处理单元,用于处理TS分组; 用于缓冲和输出由TS处理单元处理的TS分组的输出缓冲器; 以及比特率调整单元,用于根据刻度将分组输出时间的计数值分解为整数部分和小数部分,并产生用于输出存储在输出缓冲器中的一个TS分组的TS分组输出信号,如果值 通过根据刻度执行第一计数获得的值达到积分部分的值,复位第一计数值,并且如果在通过执行第二计数而获得的值中进行进位而将第一计数值减1, 每当产生TS分组输出信号时,存储的小数部分。

    Digital broadcast transmission/reception apparatus for rapid channel change
    7.
    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。

    Method and apparatus for reception of mobile broadcast
    8.
    发明申请
    Method and apparatus for reception of mobile broadcast 审中-公开
    用于接收移动广播的方法和装置

    公开(公告)号:US20070197174A1

    公开(公告)日:2007-08-23

    申请号:US11642263

    申请日:2006-12-20

    IPC分类号: H04B17/02 H04B7/08 H04B1/06

    CPC分类号: H04H20/26 H04H20/24 H04H60/82

    摘要: An apparatus for reception of a mobile broadcast is disclosed. The apparatus includes a mobile broadcast reception unit for receiving a broadcast signal transmitted through a mobile broadcasting network, demodulating the broadcast signal into a baseband signal, and outputting the baseband signal; and a wireless Internet broadcast reception unit for receiving a broadcast signal transmitted through a wireless Internet network, demodulating the broadcast signal into a baseband signal, and outputting the baseband signal, and the apparatus also includes a post-processing unit for checking reception sensibilities of the mobile broadcast reception unit and the wireless Internet broadcast reception unit, selecting and decoding one signal of output signals of the mobile broadcast reception unit and the wireless Internet broadcast reception unit according to a result of the checking, and outputting the selected and decoded signal. A reception sensibility of a mobile broadcasting network is monitored while a broadcast is being viewed through the mobile broadcasting network, a pilot signal of a wireless Internet network is measured when a corresponding mobile broadcast has a weak electric field, and a current network is shifted to a corresponding wireless Internet network having a pilot signal with a signal intensity above a threshold value when the corresponding wireless Internet network exists, thereby receiving the broadcast through the corresponding wireless Internet network.

    摘要翻译: 公开了一种用于接收移动广播的装置。 该装置包括移动广播接收单元,用于接收通过移动广播网络发送的广播信号,将广播信号解调为基带信号,并输出基带信号; 以及无线因特网广播接收单元,用于接收通过无线因特网发送的广播信号,将广播信号解调为基带信号,并输出基带信号,并且该装置还包括后处理单元,用于检查接收灵敏度 移动广播接收单元和无线因特网广播接收单元,根据检查结果选择和解码移动广播接收单元和无线因特网广播接收单元的输出信号的一个信号,并输出所选择和解码的信号。 在通过移动广播网络观看广播时监视移动广播网络的接收灵敏度,当对应的移动广播具有弱电场时,测量无线因特网的导频信号,并且将当前网络转移到 相应的无线因特网网络,当相应的无线因特网存在时,具有信号强度高于阈值的导频信号,从而通过相应的无线因特网网络接收广播。

    Broadcast splitter enabling selective transmission in real time
    9.
    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。

    Selective error concealment method and apparatus for moving picture frame

    公开(公告)号:US08472530B2

    公开(公告)日:2013-06-25

    申请号:US12313559

    申请日:2008-11-21

    IPC分类号: H04N7/18

    摘要: Disclosed is a selective frame error concealment method for a moving picture frame, the method including the steps of determining if an erroneous frame corresponds to one among a predetermined number of frames received after an I frame when the erroneous frame is received during reception of moving picture frames, determining if the number of consecutive erroneous frames is greater than a threshold value when the erroneous frame does not correspond to one among the predetermined number of frames received after the I frame, using an error concealment technique when the number of consecutive erroneous frames is equal to or less than the threshold value; and displaying a frame, which has been received without error before the erroneous frame, until receiving a new I frame, either when the erroneous frame corresponds to one among the predetermined number of frames received after the I frame, or when the number of consecutive erroneous frames is greater than the threshold value.