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    • 1. 发明专利
    • Stl/ttl line transmission device and receiving device thereof
    • STL / TTL线路传输设备及其接收设备
    • JP2013243644A
    • 2013-12-05
    • JP2012254963
    • 2012-11-21
    • Nippon Hoso Kyokai 日本放送協会Nhk Engineering System Inc一般財団法人Nhkエンジニアリングシステム
    • HONDA MADOKAOKANO MASAHIROTAKADA MASAYUKIJITSUI HITOSHINARISEI ZENICHI
    • H04N7/173H04J11/00
    • PROBLEM TO BE SOLVED: To provide an STL/TTL line transmission device which transmits a coupled composite Transport Stream TS consisting of broadcast TSs in plural kinds of segment formats which are coupled and synthesized freely in a designated number of segments or less than that by using an STL/TTL line and a receiving device thereof.SOLUTION: An STL/TTL line transmission device 1 of the present invention comprises: a data compression unit 2 which, by monitoring a TSP counter value for a broadcast TS in a designed segment format, removes null packets of a predetermined TSP counter value according to transmission parameters of the broadcast TS, to generate a compressed broadcast TS consisting of compressed data; and a synthesis unit 3 which couples the compressed broadcast TS and a broadcast TS which has had its data not compressed to generate a coupled composite TS. The coupled composite TS has had transmission path encoding applied thereto and is transmitted to the outside by an STL/TTL line. An STL/TTL line receiving device 10 separates the coupled composite TS which includes the compressed broadcast TS and expands the compressed broadcast TS to restore the original broadcast TS.
    • 要解决的问题:提供一种STL / TTL线路传输设备,其发送由多个段格式的广播TS组成的耦合复合传输流TS,其以指定数量的片段自由地耦合和合并,或小于使用 STL / TTL线及其接收装置。本发明的STL / TTL线路传输装置1包括:数据压缩单元2,通过以设计的段格式监视广播TS的TSP计数器值, 根据广播TS的传输参数去除预定TSP计数器值的空分组,以产生由压缩数据组成的压缩广播TS; 以及合成单元3,其将压缩广播TS和已经将其数据未被压缩的广播TS耦合以生成耦合复合TS。 耦合复合TS具有应用于其的传输路径编码,并通过STL / TTL线路发送到外部。 STL / TTL线路接收装置10分离包括压缩广播TS的耦合复合TS,并扩展压缩广播TS以恢复原始广播TS。
    • 2. 发明专利
    • Data broadcast generation apparatus, broadcast system, and program
    • 数据广播发生装置,广播系统和程序
    • JP2013229831A
    • 2013-11-07
    • JP2012101974
    • 2012-04-27
    • Nippon Hoso Kyokai 日本放送協会Nhk Engineering System Inc一般財団法人Nhkエンジニアリングシステム
    • JITSUI HITOSHIOKANO MASAHIROHONDA MADOKANARISEI ZENICHITAKADA MASAYUKI
    • H04N7/173H04H20/16H04H20/26H04H20/42
    • PROBLEM TO BE SOLVED: To provide a data broadcast generation device that generates data ES for broadcasting where content for data broadcasting is multiplexed into video ES and sound ES to be transferred.SOLUTION: A data broadcast generation apparatus 50 of a broadcast system 1 of the present invention comprises: a data broadcast generation unit 53 that generates a data ES for broadcasting by data blocks in a specified carousel period; a transfer bit rate management unit 51 that performs one of: deletion of image information; reduction in accordance with the priority about categories in the content for the data broadcasting; and expansion of the transfer bit rate of the data broadcasting by lowering the bit rate or eliminating the transfer, of the video ES and/or sound ES, and controls generation of the data ES for broadcasting in the data broadcast generation unit 53 so as to transfer the content for data broadcasting in the specified carousel period.
    • 要解决的问题:提供一种数据广播生成装置,其生成数据广播用数据ES,将数据广播的内容复用到视频ES中,并传送到声音ES。解决方案:广播系统1的数据广播发生装置50 本发明包括:数据广播生成单元53,其生成用于在指定的轮播周期内由数据块进行广播的数据ES; 传送比特率管理单元51,执行以下之一:删除图像信息; 按照数据广播内容类别的优先级减少; 并且通过降低比特率或消除视频ES和/或声音ES的传送来扩展数据广播的传送比特率,并且控制在数据广播生成单元53中广播的数据ES的生成,以便 在指定的转盘时段内传输数据广播的内容。
    • 3. 发明专利
    • Ofdm transmission device and reception device
    • OFDM传输设备和接收设备
    • JP2013225755A
    • 2013-10-31
    • JP2012096918
    • 2012-04-20
    • Nippon Hoso Kyokai 日本放送協会Nhk Engineering System Inc一般財団法人Nhkエンジニアリングシステム
    • NARISEI ZENICHIOKANO MASAHIROTAKADA MASAYUKIHONDA MADOKAJITSUI HITOSHI
    • H04J11/00H04N7/06
    • PROBLEM TO BE SOLVED: To prevent the deterioration of signal quality in a mobile reception environment of a MIMO-OFDM communication system or a MISO-OFDM communication system.SOLUTION: A transmission device 10 configures a transmission frame having an SP signal disposed at a predetermined position outside a signal bandwidth, and performs IFFT on the transmission frame to transmit a broadcast wave of an OFDM signal. A reception device 20 receives the OFDM signal broadcast wave from the transmission device 10, performs FFT on the OFDM signal to extract a pilot carrier such as the SP signal, estimates a propagation path in regard to a carrier position other than an end region in the signal bandwidth, and estimates the carrier position of the end region in the signal bandwidth. By this, it is possible to solve the problem of incapable propagation path estimation in regard to many carrier positions at the end of a frequency axis.
    • 要解决的问题:为了防止MIMO-OFDM通信系统或MISO-OFDM通信系统的移动接收环境中的信号质量的恶化。解决方案:传输设备10配置具有预定的SP信号的传输帧 位置在信号带宽之外,并且在传输帧上执行IFFT以发送OFDM信号的广播波。 接收装置20从发送装置10接收OFDM信号广播波,对OFDM信号进行FFT,提取诸如SP信号的导频载波,估计关于除了终端区域之外的载波位置的传播路径 信号带宽,并估计信号带宽中终端区域的载波位置。 由此,可以解决关于频率轴末端的许多载体位置的无法传播路径估计的问题。
    • 4. 发明专利
    • Receiver and receiving method for performing iterative decoding of concatenated code data
    • 用于执行定义代码数据的迭代解码的接收器和接收方法
    • JP2011097355A
    • 2011-05-12
    • JP2009249202
    • 2009-10-29
    • Nippon Hoso Kyokai 日本放送協会
    • NARISEI ZENICHIYOKOHATA KAZUNORIOKANO MASAHIROTAKADA MASAYUKI
    • H03M13/29H03M13/45
    • PROBLEM TO BE SOLVED: To improve reception quality with a simple configuration without modifying the existing decoding process when performing iterative decoding on the concatenated code data of outer code and inner code. SOLUTION: An RS decoding unit 22 generates the decoding results and decoding right/wrong information, a convolutional encoding unit 35 generates convolutional decoding results by performing convolutional decoding on the decoding results subjected to energy dispersion and byte interleaving, and a convolutional encoding unit 32 generates the convolutional decoding right/wrong information in the range from 0 to 5 by performing convolutional encoding on the decoding right/wrong information subjected to byte interleaving. A soft decision value changing unit 50 changes the convolutional decoding results when the convolutional decoding right/wrong information is 5 to a new soft decision value in place of a soft decision value input from a demapping unit 18. An iterative decoding unit 41 performs decoding by using the new soft decision value thus changed, generates video/audio data with few errors by performing the decoding a predetermined number of times and then outputs the video/audio data to the outside. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:在对外部代码和内部代码的级联代码数据执行迭代解码时,通过简单的配置来提高接收质量而不修改现有的解码过程。 解码:解码单元22生成解码结果和解码右/错误信息,卷积编码单元35对经过能量分散和字节交织的解码结果进行卷积解码,并进行卷积编码,生成卷积解码结果 单元32通过对经过字节交织的解码权/错误信息进行卷积编码,生成从0到5的范围内的卷积解码右/错信息。 软判决值改变单元50代替从解映射单元18输入的软判决值,将卷积解码权/错信息为5时的卷积解码结果改变为新的软判决值。迭代解码单元41通过 使用如此改变的新的软判决值,通过执行解码预定次数来生成具有很少错误的视频/音频数据,然后将视频/音频数据输出到外部。 版权所有(C)2011,JPO&INPIT
    • 5. 发明专利
    • Terrestrial digital broadcast receiver
    • 地面数字广播接收机
    • JP2009089308A
    • 2009-04-23
    • JP2007259635
    • 2007-10-03
    • Nippon Hoso Kyokai 日本放送協会
    • NARISEI ZENICHIOKANO MASAHIROTSUCHIDA KENICHISHIBUYA KAZUHIKO
    • H04J11/00H04N7/173H04N21/438
    • PROBLEM TO BE SOLVED: To lighten a burden imposed on processing for shortening processing time by identifying whether a reception signal is a terrestrial digital broadcast signal or a signal transmitted by connecting one-segment signals. SOLUTION: A complex division circuit 503 calculates complex division results S1, S2 with the SP pattern of a terrestrial digital broadcast signal calculated by an SP calculation circuit 502-1 with the SP pattern of the reception signal as a numerator and the SP pattern of a coupling retransmission signal calculated by an SP calculation circuit 502-2 as a denominator. A coefficient calculation circuit 601 uses the complex division results S1, S2 to calculate coefficients T1, T2 indicating the scattering condition of constellation. A determination circuit 602 specifies a smaller coefficient and identifies a signal having the smaller coefficient as the reception signal. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:通过识别接收信号是地面数字广播信号还是通过连接一段信号发送的信号来减轻处理缩短处理时间的负担。 解决方案:复分割电路503利用SP计算电路502-1计算的地面数字广播信号的SP模式,以接收信号的SP模式为分子来计算复分数结果S1,S2,SP 由SP计算电路502-2计算的耦合重发信号的模式作为分母。 系数计算电路601使用复数分割结果S1,S2来计算表示星座的散射条件的系数T1,T2。 确定电路602指定较小的系数并且识别具有较小系数的信号作为接收信号。 版权所有(C)2009,JPO&INPIT
    • 6. 发明专利
    • Satellite/terrestrial broadcasting signal converter, and terrestrial digital broadcast relay device
    • 卫星/地面广播信号转换器和地面数字广播继电器
    • JP2009044355A
    • 2009-02-26
    • JP2007205970
    • 2007-08-07
    • Nippon Hoso Kyokai 日本放送協会
    • NODA YUKIOSHIBUYA KAZUHIKOTSUCHIDA KENICHIOKANO MASAHIROMIYAZAKI OSAMUTAKADA MASAYUKIHASHIMOTO AKINORINOMOTO TOSHIHIRONAKA TAKASHI
    • H04B7/155H04H20/28H04H20/74
    • PROBLEM TO BE SOLVED: To provide service unique to terrestrial digital broadcast such as one-segment even when content of the terrestrial digital broadcast utilizing a broadcasting satellite. SOLUTION: A T/S inverse transformer (satellite/terrestrial broadcasting signal converter) 45 is characterized by providing: an IIP detection means 452 for detecting packets including head location information of multiplex frames from stream data for the terrestrial digital broadcast converted into a signal form of satellite digital broadcast to synchronize the packets; an invalid hierarchy insertion means 454 for inserting packets of invalid hierarchies specified by the signal form of the terrestrial digital broadcast in the multiplex frames; an NIT replacement means 456 for replacing an identifier of a network information table with an identifier specified by the signal form of the terrestrial digital broadcast; and a PCR reset means 457 for resetting program time reference value which no longer shows correct time reference value since timing changes by insertion of the packets by the invalid hierarchy insertion means 454. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:即使在使用广播卫星的地面数字广播的内容的情况下,也提供诸如一段的地面数字广播独特的服务。 解决方案:AT / S逆变换器(卫星/地面广播信号转换器)45的特征在于提供:IIP检测装置452,用于检测包括多路复用帧的头位置信息的数据包,转换为转换为 信号形式的卫星数字广播同步数据包; 用于将由地面数字广播的信号形式指定的无效层次的分组插入到多路复用帧中的无效层级插入装置454; 用于用由地面数字广播的信号形式指定的标识符替换网络信息表的标识符的NIT替换装置456; 以及PCR复位装置457,用于重置由于无效分层插入装置454插入分组而使定时改变而不再显示正确的时间基准值的程序时间基准值。(C)2009,JPO&INPIT
    • 7. 发明专利
    • Terrestrial digital broadcast retransmitter
    • 地理数字广播重播器
    • JP2008153958A
    • 2008-07-03
    • JP2006340012
    • 2006-12-18
    • Nippon Hoso Kyokai 日本放送協会
    • NARISEI ZENICHIOKANO MASAHIROTSUCHIDA KENICHITAKADA MASAYUKISHIBUYA KAZUHIKO
    • H04B7/15H04B1/40H04H20/02H04H20/33H04H20/67H04J1/00H04J11/00H04N5/38
    • H04H20/02H04N5/38
    • PROBLEM TO BE SOLVED: To provide a compact retransmitter for broadcasting for a portable and mobile object, without requiring useless frequency allocation, with a short delay time.
      SOLUTION: This terrestrial digital broadcast retransmitter 1 is provided with N tuner parts 200, N digital processing parts 311, an addition circuit 400 and a retransmitting part 500. Each tuner part 200 selects one channel from terrestrial digital broadcast waves of a plurality of received channels, and outputs a baseband signal equivalent to that of the channel. Each digital processing part 311 extracts only a partial reception part from 13 segments of the equivalent baseband signal by an LPF circuit 301 and arranges the partial reception part in segments when connected by a segment arrangement circuit 302. The addition circuit 400 receives the equivalent baseband signal of the partial reception part from each digital processing part 311, additively synthesizes equivalent baseband signals and retransmits a resultant signal as a terrestrial digital broadcast wave of one channel through the retransmitting part 500.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了提供用于便携式和移动对象的广播的紧凑重传器,而不需要无用的频率分配,具有短的延迟时间。 解决方案:该地面数字广播转发器1设置有N个调谐器部分200,N个数字处理部分311,加法电路400和重传部分500.每个调谐器部分200从多个地面数字广播波中选择一个信道 并输出与信道相同的基带信号。 每个数字处理部分311仅由LPF电路301从等效基带信号的13个段中提取部分接收部分,并且当通过分段排列电路302连接时将部分接收部分分段。加法电路400接收等效基带信号 从每个数字处理部分311的部分接收部分中,加法地合成等效的基带信号,并且通过重传部分500重发作为一个信道的地面数字广播波的合成信号。(C)2008年,JPO和INPIT
    • 9. 发明专利
    • Transmission apparatus and receiving apparatus
    • 传输装置和接收装置
    • JP2007281868A
    • 2007-10-25
    • JP2006105269
    • 2006-04-06
    • Nippon Hoso Kyokai 日本放送協会
    • KURAKAKE TAKUYAITO YASUHIROOYAMADA KIMIYUKIKUSAKABE TAKESHIOKANO MASAHIRONAKAMURA NAOYOSHI
    • H04N7/173H04N21/2365H04N21/426H04N21/61
    • PROBLEM TO BE SOLVED: To provide a transmission apparatus and a receiving apparatus capable of providing zapping applicable even to a live broadcast program. SOLUTION: The transmission apparatus 100 includes: a first transmission line coding section 110, a second transmission line coding section 120, and a third transmission line coding section 130 for respectively coding data such as video included in a multiplexed TS on respective transmission lines; a zapping data generating section 140 for generating zapping data; and a communication section 160 for communicating with an IP network 15, and the zapping data generating section 140 includes: transcode sections 141, 142, 143 for respectively converting 1 to 3ch program data into zapping data at a low bit rate; a multiplexer section 144 for multiplexing the zapping data; and a fourth transmission line coding section 150 for coding the multiplexed zapping data on the fourth transmission line. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供能够提供适用于即时广播节目的切换的发送装置和接收装置。 解决方案:发送装置100包括:第一传输线路编码部分110,第二传输线路编码部分120和第三传输线路编码部分130,用于分别对包括在各个传输中的多路复用的TS中的视频中的数据进行编码 线; 用于产生切换数据的切换数据产生部分140; 以及用于与IP网络15通信的通信部分160,并且切换数据生成部分140包括:代码转换部分141,142,143,用于分别将1到3ch的节目数据以低比特率转换成切换数据; 用于复用切换数据的多路复用器部分144; 以及第四传输线编码部分150,用于对第四传输线上的复用的切换数据进行编码。 版权所有(C)2008,JPO&INPIT
    • 10. 发明专利
    • Delay profile measurement method and apparatus
    • 延迟轮廓测量方法和装置
    • JP2007028367A
    • 2007-02-01
    • JP2005209590
    • 2005-07-20
    • Nippon Hoso Kyokai 日本放送協会
    • KANBARA KOHEITAKADA MASAYUKIKIMURA SATOSHIOKANO MASAHIROTSUCHIDA KENICHIARATA HIROOHAMAZUMI HIROYUKIYAMASATO AKIKO
    • H04J11/00
    • PROBLEM TO BE SOLVED: To provide a delay profile measurement method and apparatus capable of enhancing the analysis accuracy of a radio wave receiving state and a radio wave propagation state by increasing the resolution of a delay profile with respect to the measurement of the delay profile of a terrestrial digital broadcast wave.
      SOLUTION: In the delay profile measurement apparatus, a reception antenna section 100 receives consecutive terrestrial digital broadcast waves of a plurality of channels, an SP carrier information extraction section 500 extracts SP carrier information of each channel from demodulation data, a delay profile calculation section 800 uses the SP carrier information of each channel to calculate the delay profile depending on many FFT points than those of prior arts. Since a value of the resolution (Δt) of the delay profile is decreased more than that of prior arts, that is, the resolution of the delay profile can be increased, the task above can be solved.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 解决的问题:提供一种延迟分布测量方法和装置,其能够通过增加延迟分布的分辨率来提高无线电波接收状态和无线电波传播状态的分析精度 地面数字广播波的延迟曲线。 解决方案:在延迟分布测量装置中,接收天线部分100接收多个信道的连续地面数字广播波,SP载波信息提取部分500从解调数据中提取每个信道的SP载波信息,延迟分布 计算部分800使用每个信道的SP载波信息来计算取决于现有技术的许多FFT点的延迟分布。 由于延迟分布的分辨率(Δt)的值比现有技术的分辨率(Δt)下降得多,所以可以提高延迟分布的分辨率,可以解决上述任务。 版权所有(C)2007,JPO&INPIT