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1. 发明专利

JP2012213139A Broadcast service reception device and program 审中-公开
标题翻译：广播服务接收设备和程序
公开(公告)号：JP2012213139A
公开(公告)日：2012-11-01
申请号：JP2012019157
申请日：2012-01-31
申请人： Nippon Hoso Kyokai , Nhk Engineering Services Inc , 日本放送協会 , 財団法人エヌエイチケイエンジニアリングサービス
发明人： TOKORO YOICHI , JITSUI HITOSHI , FUJITA MASAMI , IMAIZUMI HIROYUKI , NOGUCHI SHUICHI , AMANO YOSHITERU , KAMIYAMA SHINOBU , HONDA MADOKA , NAKAHARA SHUNJI , KURODA TORU , UEHARA MICHIHIRO , ISHIKAWA KOICHI , OKANO MASAHIRO
IPC分类号： H04N7/173 , H04H20/16 , H04H20/40 , H04H60/37 , H04N5/76 , H04N5/93
摘要： PROBLEM TO BE SOLVED: To receive and reproduce a content file which is small in data size.SOLUTION: A reception device 2 includes: demodulation and TS (transport stream) decryption parts (20 and 21) for separating the TS of PSI (program specific information)/SI (service information) and the TS of a storage content from a TS obtained by demodulating a broadcast wave; a carousel decryption part 25 for acquiring a content file; a content storage preservation control part 29 for controlling the reservation of the storage content; a memory part 30 for storing the content file, a storage preservation management table, and a storage content management table; a storage content reproduction control part 34 for controlling the reproduction operation of the content file; and storage content decryption parts (22, 23, 24 and 26) for reproducing the content file by decryption. The storage content reproduction control part 34 performs control so as to allow only the content file corresponding to one circulation of a data carousel transmission to be reproduced during a predetermined time when a content kind indicates that the storage content is constituted only of data for a data broadcast.
摘要翻译：要解决的问题：接收和再现数据大小小的内容文件。解决方案：接收装置2包括：用于将PSI（节目特定信息）/ SI（服务信息）的TS和存储内容的TS分离的解调和TS（传输流）解密部分（20和21）通过解调广播波获得的TS; 用于获取内容文件的转盘解密部分25; 内容存储保存控制部分29，用于控制存储内容的预约; 用于存储内容文件的存储部分30，存储保存管理表和存储内容管理表; 用于控制内容文件的再现操作的存储内容再现控制部分34; 以及用于通过解密再现内容文件的存储内容解密部分（22,23,24和26）。存储内容再现控制部分34执行控制，使得仅当内容种类表示存储内容仅由数据的数据构成时，才允许在预定时间内再现对应于数据轮播传输的一次循环的内容文件广播。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2012253553A Ofdm wave measuring apparatus 有权
标题翻译： OFDM波形测量装置
公开(公告)号：JP2012253553A
公开(公告)日：2012-12-20
申请号：JP2011124361
申请日：2011-06-02
申请人： Nippon Hoso Kyokai , 日本放送協会 , Nhk Engineering Services Inc , 財団法人エヌエイチケイエンジニアリングサービス
发明人： OKANO MASAHIRO , NAKAHARA SHUNJI , JITSUI HITOSHI , HONDA MADOKA
IPC分类号： H04J11/00 , H04N17/00
摘要： PROBLEM TO BE SOLVED: To highly accurately measure OFDM signals even when signal power is at a low level.SOLUTION: An error detection part 14 of an OFDM wave measuring apparatus 1 performs addition of a 4-symbol unit on a time base to orthogonally demodulated baseband signals, and detects a frequency error, a symbol head position a0 and a clock error a1 by guard correlation processing. A symbol addition part 18-1 performs synchronous addition to a carrier symbol which is an FFT output signal of a symbol segmented on the basis of the symbol head position a0, and an SP pattern detection part 19 detects an SP pattern in SP correlation processing of the synchronous addition result. A clock error correction part 22 corrects the clock error a1 for the carrier symbol, a symbol addition part 18-3 synchronously adds SP signals in the carrier symbol after the correction of the clock error a1, and an SP extraction part 20-2 extracts the SP signal from the synchronous addition result. On the basis of the SP signal, the OFDM signals are measured.
摘要翻译：要解决的问题：即使当信号功率处于低电平时也能高精度地测量OFDM信号。解决方案：OFDM波形测量装置1的错误检测部分14在时基上对正交解调的基带信号执行4符号单元的相加，并检测频率误差，符号头位置a0和时钟误差 a1通过保护相关处理。符号附加部分18-1对作为基于符号头位置a0分割的符号的FFT输出信号的载波符号执行同步相加，并且SP模式检测部分19检测SP相关处理中的SP模式同步加法结果。时钟误差校正部分22校正载波符号的时钟误差a1，符号加法部分18-3在校正时钟误差a1之后同步地在载波符号中加上SP信号，并且SP提取部分20-2提取 SP信号来自同步加法结果。在SP信号的基础上，测量OFDM信号。版权所有（C）2013，JPO＆INPIT

3. 发明专利

JP2012239146A Ofdm transmitter and receiver for wireless microphone 有权
标题翻译：无线麦克风的OFDM发射机和接收机
公开(公告)号：JP2012239146A
公开(公告)日：2012-12-06
申请号：JP2011108614
申请日：2011-05-13
申请人： Nippon Hoso Kyokai , 日本放送協会 , Nhk Engineering Services Inc , 財団法人エヌエイチケイエンジニアリングサービス
发明人： ISO NAOHIKO , HAMAZUMI HIROYUKI , HONDA MADOKA , OKANO MASAHIRO , NAKAHARA SHUNJI , IKEDA TETSUOMI
IPC分类号： H04J11/00 , H04B1/04
摘要： PROBLEM TO BE SOLVED: To reduce a delay due to transmission and reception of an audio signal, and to prevent phasing due to multipath.SOLUTION: An OFDM transmitter 1a for wireless microphone comprises an inner code encoding unit 133 which receives digital audio signals in units of block and generates an inner code of each block, an OFDM modulation unit 14 which generates an OFDM signal by modulating the inner code by an OFDM modulation system, and a transmission parameter setting unit 18 which sets No, Ri, M and Nd to satisfy a relation No=Ri×M×Nd, where the number of bits of data in a block unit input to the inner code encoding unit is No, coding rate of the inner code is Ri, the modulation multi-level number of the OFDM signal is M, and the number of sub-carriers of the OFDM signal is Nd.
摘要翻译：要解决的问题：减少由于音频信号的发送和接收引起的延迟，并且防止由于多路径导致的定相。解决方案：一种用于无线麦克风的OFDM发射机1a包括内部码编码单元133，其以块为单位接收数字音频信号并产生每个块的内部码; OFDM调制单元14，其通过调制通过OFDM调制方式的内部码，以及设定No，Ri，M，Nd以满足关系No = Ri×M×Nd的发送参数设定单元18，其中输入到内码编码单位为“否”，内码的编码率为Ri，OFDM信号的调制多级数为M，OFDM信号的副载波数为Nd。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2012213138A Broadcast service transmission device and program 审中-公开
标题翻译：广播服务传输设备和程序
公开(公告)号：JP2012213138A
公开(公告)日：2012-11-01
申请号：JP2012019053
申请日：2012-01-31
申请人： Nippon Hoso Kyokai , Nhk Engineering Services Inc , 日本放送協会 , 財団法人エヌエイチケイエンジニアリングサービス
发明人： TOKORO YOICHI , JITSUI HITOSHI , FUJITA MASAMI , IMAIZUMI HIROYUKI , NOGUCHI SHUICHI , AMANO YOSHITERU , KAMIYAMA SHINOBU , HONDA MADOKA , NAKAHARA SHUNJI , KURODA TORU , UEHARA MICHIHIRO , ISHIKAWA KOICHI , OKANO MASAHIRO
IPC分类号： H04N7/173 , H04H20/16 , H04H20/28 , H04H20/40 , H04H60/07 , H04H60/27
摘要： PROBLEM TO BE SOLVED: To reduce the size of data when storage content is transmitted.SOLUTION: A transmission device 1 includes: a content file generation part 101 for generating a storage content, determining transmission times within one circulation of data carousel transmission of data for a data broadcast, and generating a content file corresponding to the one circulation of the data carousel transmission; a carousel processing part 11 for making the file into DII (download information indication) sections including event identifiers and DDB (download data block) sections; a program schedule table generation part 103 for generating a program schedule table including the event identifiers and storage content kinds; a control data generation part 102 for associating the event identifiers of the program schedule table with the event identifiers of the DII sections, and controlling the data carousel transmission for each storage content; a multiplexing part 13 for multiplexing a program schedule and the storage content; and modulation transmission parts 14 and 15 for modulating and transmitting a TS (transport stream).
摘要翻译：要解决的问题：为了在传输存储内容时减小数据的大小。解决方案：传输设备1包括：内容文件生成部分101，用于产生存储内容，确定在数据传送带的数据轮播传输的一个循环内的传输时间，用于数据广播的数据传输，并且生成对应于一个循环的内容文件的数据传送带传输; 用于将文件制成包括事件标识符和DDB（下载数据块）部分的DII（下载信息指示）部分的转盘处理部分11; 程序调度表生成部103，生成包含事件识别符和存储内容种类的程序调度表; 控制数据产生部分102，用于将节目表表的事件标识符与DII部分的事件标识符相关联，并且控制每个存储内容的数据轮播传输; 复用部分13，用于多路复用节目表和存储内容; 以及用于调制和发送TS（传输流）的调制传输部分14和15。版权所有（C）2013，JPO＆INPIT

5. 发明专利

JP2013055373A Wireless microphone ofdm transmission device and receiving device 有权
标题翻译：无线麦克风OFDM传输设备和接收设备
公开(公告)号：JP2013055373A
公开(公告)日：2013-03-21
申请号：JP2011190047
申请日：2011-08-31
申请人： Nippon Hoso Kyokai , 日本放送協会 , Nhk Engineering Services Inc , 財団法人エヌエイチケイエンジニアリングサービス
发明人： OKANO MASAHIRO , HONDA MADOKA , HAMAZUMI HIROYUKI , ISO NAOHIKO , IKEDA TETSUOMI , TAKADA MASAYUKI , NAKAHARA SHUNJI
IPC分类号： H04J11/00 , H04B1/04
摘要： PROBLEM TO BE SOLVED: To reduce a delay in sound signal due to transmission and reception and also prevent reception quality from being degraded by multipath fading.SOLUTION: A wireless microphone OFDM transmission device 1a comprises: an inner code coding unit 133 which, upon accepting a digital sound signal input thereto in block units, turns the signal into an inner code for every block to generate an inner code; an OFDM modulation unit 14 which modulates the inner code by an OFDM modulation method to generate an OFDM signal; and a transmission parameter setting unit 18 which sets parameters No (a number of data bits in block units input to the inner code coding unit 133), Ri (a coding rate of the inner code), M (a modulation multilevel number of the OFDM signal) and Nd (a data carrier number of the OFDM signal), so that the equation No=Ri×M×Nd will be satisfied, and that the symbol length of the OFDM signal will be an integral multiple of a sound signal sampling interval.
摘要翻译：要解决的问题：为了减少由于发送和接收引起的声音信号的延迟，并且还防止接收质量被多径衰落降级。解决方案：无线麦克风OFDM传输设备1a包括：内码编码单元133，其以块为单位接收输入到其中的数字声音信号，将信号转换为每个块的内码，以产生内码; OFDM调制单元14，其通过OFDM调制方式对内部码进行调制，生成OFDM信号; 以及发送参数设定单元18，其将参数No（输入到内部代码编码单元133的块单元的数量位数），Ri（内部代码的编码率），M（OFDM的调制多级数信号）和Nd（OFDM信号的数据载体号），使得满足方程式No = Ri×M×Nd，并且OFDM信号的符号长度将是声音信号采样间隔的整数倍。版权所有（C）2013，JPO＆INPIT

6. 发明专利

JP2013021465A Wireless microphone ofdm transmitter and receiver 有权
标题翻译：无线麦克风OFDM发射机和接收机
公开(公告)号：JP2013021465A
公开(公告)日：2013-01-31
申请号：JP2011152273
申请日：2011-07-08
申请人： Nippon Hoso Kyokai , 日本放送協会 , Nhk Engineering Services Inc , 財団法人エヌエイチケイエンジニアリングサービス
发明人： HAMAZUMI HIROYUKI , ISO NAOHIKO , HONDA MADOKA , OKANO MASAHIRO , NAKAHARA SHUNJI , IKEDA TETSUOMI
IPC分类号： H04J11/00 , H04B1/04
摘要： PROBLEM TO BE SOLVED: To improve transmission efficiency by optimizing an insertion rate of a pilot signal for a wireless microphone system.SOLUTION: A wireless microphone OFDM transmitter 1 comprises: a carrier modulation part 142 generating a carrier modulation signal by mapping a digital voice signal to an IQ plane for each carrier; and an OFDM frame configuration part 143 generating an OFDM segment frame by inserting and arranging a pilot signal into the carrier modulation signal. The OFDM frame configuration part 143 sets an insertion interval of the pilot signal in a symbol direction so that the value resulting from multiplying the insertion interval of the pilot signal in the symbol direction by effective symbol length of an OFDM signal is equal to or smaller than 1/100 of a fading period, and sets an insertion interval of the pilot signal in a carrier direction so that the insertion interval of the pilot signal in the carrier direction is equal to or smaller than the value resulting from multiplying the insertion interval of the pilot signal in the symbol direction by the value resulting from dividing the effective symbol length of the OFDM signal by maximum delay time of a reflection wave.
摘要翻译：要解决的问题：通过优化无线麦克风系统的导频信号的插入速率来提高传输效率。解决方案：无线麦克风OFDM发射机1包括：载波调制部分142，通过将每个载波的数字语音信号映射到IQ平面来产生载波调制信号; 以及OFDM帧配置部143，通过将导频信号插入并配置到载波调制信号中来生成OFDM分段帧。 OFDM帧配置部143将码元方向的导频信号的插入间隔设定为使得由符号方向的导频信号的插入间隔乘以OFDM信号的有效符号长度而得到的值为等于或小于设置导频信号在载波方向上的插入间隔，使得导频信号在载波方向上的插入间隔等于或小于将导频信号的载波间隔乘以将符号方向的导频信号乘以由反射波的最大延迟时间除以OFDM信号的有效符号长度而得到的值。版权所有（C）2013，JPO＆INPIT

7. 发明专利

JP2013229831A Data broadcast generation apparatus, broadcast system, and program 审中-公开
标题翻译：数据广播发生装置，广播系统和程序
公开(公告)号：JP2013229831A
公开(公告)日：2013-11-07
申请号：JP2012101974
申请日：2012-04-27
申请人： 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
发明人： JITSUI HITOSHI , OKANO MASAHIRO , HONDA MADOKA , NARISEI ZENICHI , TAKADA MASAYUKI
IPC分类号： H04N7/173 , H04H20/16 , H04H20/26 , H04H20/42
摘要： 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.
摘要翻译：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。

8. 发明专利

JP2013225755A Ofdm transmission device and reception device 有权
标题翻译： OFDM传输设备和接收设备
公开(公告)号：JP2013225755A
公开(公告)日：2013-10-31
申请号：JP2012096918
申请日：2012-04-20
申请人： 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
发明人： NARISEI ZENICHI , OKANO MASAHIRO , TAKADA MASAYUKI , HONDA MADOKA , JITSUI HITOSHI
IPC分类号： H04J11/00 , H04N7/06
摘要： 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.
摘要翻译：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。

9. 发明专利

JP2008172578A Optical transmission device and optical reception device 有权
标题翻译：光传输设备和光接收设备
公开(公告)号：JP2008172578A
公开(公告)日：2008-07-24
申请号：JP2007004396
申请日：2007-01-12
申请人： Nippon Hoso Kyokai , 日本放送協会
发明人： HONDA MADOKA , NAKATOGAWA TAKESHI , OYAMADA KIMIYUKI
IPC分类号： H04J14/00 , H01S3/10 , H01S3/102 , H04B10/07 , H04B10/2537 , H04B10/2543 , H04B10/29 , H04B10/296 , H04J14/02
摘要： PROBLEM TO BE SOLVED: To provide an adaptive optical communication system to be easily and flexibly operated without changing the setting of an optical amplifier each time with respect to the change of signal optical power due to the increase/decrease of the number of wavelengths, etc., concerning a wavelength multiple light communication system. SOLUTION: An optical transmission device includes: an auxiliary light output means for outputting an auxiliary light with the wavelength, being different from any wavelength of signal lights, by prescribed power corresponding to the number of wavelengths of the signal lights; and a multiplexing means for multiplexing the auxiliary light to be outputted from the auxiliary light output means together with the plurality of signal lights and outputting them. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供自适应光通信系统，以便每次相对于信号光功率的变化而不改变光放大器的设置而容易且灵活地操作，这是由于数量的增加/减少波长等，涉及波长多光通信系统。光传输装置包括：辅助光输出装置，用于以与信号光的波长数相对应的规定功率输出波长不同于信号光波长的辅助光; 以及多路复用装置，用于将辅助光输出装置输出的辅助光与多个信号灯一起多路复用并输出。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2007059479A Optical amplifier 有权
标题翻译：光放大器
公开(公告)号：JP2007059479A
公开(公告)日：2007-03-08
申请号：JP2005240187
申请日：2005-08-22
申请人： Nippon Hoso Kyokai , Sumitomo Electric Ind Ltd , 住友電気工業株式会社 , 日本放送協会
发明人： SANO KOICHI , SHITOMI TATSUHIKO , TSUZAKI TETSUFUMI , KUBO TOSHIHIRO , HONDA MADOKA , MATSUDA TAKAHIRO , SANO WATARU
IPC分类号： H01S3/13 , H01S3/10 , H04B10/07 , H04B10/29 , H04B10/293
摘要： PROBLEM TO BE SOLVED: To provide an optical amplifier which can improve the noise factor and reduce the cost. SOLUTION: A light to be amplified is input in an input terminal 11 and is amplified optically in an optical amplification medium 20 and output to an output terminal 12. The level of the light output from the output terminal 12 is detected with an output light monitor 40. A control unit 51 adjusts an excited energy supplied to the optical amplification medium 20 through an excitation section 30 so that the level of the output light obtained by the output light monitor 40 is constant, and performs ALC control. The control unit 51 monitors the level of the light to be input to the input terminal 11 on the basis of the level of the output light obtained by the output light monitor 40. In addition, the control unit 51 compares the output light with a first reference output light level. When it is decided that the level thereof is lower than the first reference output light level, the control unit 51 lowers the maximum supply quantity of excited energy supplied to the optical amplification medium 20 through the excitation section 30, and furthermore, it lowers the output light level still further than the first reference output light level. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供可以改善噪声因素并降低成本的光放大器。解决方案：要放大的光被输入到输入端11中，并在光放大介质20中被光学放大并输出到输出端12.从输出端12输出的光的电平用输出光监视器40.控制单元51通过激励部分30调节提供给光放大介质20的激发能，使得由输出光监视器40获得的输出光的电平恒定，并执行ALC控制。控制单元51基于由输出光监视器40获得的输出光的电平来监视要输入到输入端子11的光的电平。此外，控制单元51将输出光与第一参考输出光电平。当判定其电平低于第一参考输出光电平时，控制单元51降低通过激励部分30提供给光放大介质20的激励能量的最大供给量，此外，其降低输出光级别比第一参考输出光水平还要高。版权所有（C）2007，JPO＆INPIT

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