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1. 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

2. 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

3. 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

4. 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

5. 发明专利

JP2012085118A Broadcast service transmitter and receiver, and program of the same 有权
标题翻译：广播服务发射机和接收机及其编程
公开(公告)号：JP2012085118A
公开(公告)日：2012-04-26
申请号：JP2010229992
申请日：2010-10-12
申请人： Nhk Engineering Services Inc , Nippon Hoso Kyokai , 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： JITSUI HITOSHI , OKANO MASAHIRO , NAKAHARA SHUNJI , UEHARA MICHIHIRO , FUJITA MASAMI , IMAIZUMI HIROYUKI , ISHIKAWA KOICHI , TOKORO YOICHI , AMANO YOSHITERU
IPC分类号： H04N7/173 , H04H20/16 , H04H20/30 , H04H20/40 , H04H20/93 , H04H60/40 , H04N5/76
摘要： PROBLEM TO BE SOLVED: To provide a transmitter which transmits, by download broadcast, a content file associated with content in real-time broadcast by digital broadcast waves, and to provide a receiver for receiving the content file, and a program.SOLUTION: The transmitter is provided with: program schedule table generation means; program schedule table transmission means which transmits a program schedule table at predetermined intervals; content file transmission means which transmits a content file having an event identifier associated in the program schedule table in a data block by the carousel method; and content formation means which transmits a predetermined service group identifier for grouping real-time-type broadcast to be primary and downloading-type broadcast to be secondary.
摘要翻译：解决的问题：提供一种通过下载广播发送与数字广播波进行实时广播中的内容相关联的内容文件的发送机，并提供接收内容文件的接收机和程序。
解决方案：发射机设有：节目表表生成装置; 节目安排表发送装置，以规定的时间间隔发送节目安排表; 内容文件传输装置，其通过轮播方法在数据块中发送具有与程序调度表相关联的事件标识符的内容文件; 以及内容形成装置，其发送用于将实时类型广播分组为主要和将下载类型广播分组为次要的预定服务组标识符。版权所有（C）2012，JPO＆INPIT

6. 发明专利

JP2011066679A Ofdm receiver and transmitter 有权
标题翻译： OFDM接收机和发射机
公开(公告)号：JP2011066679A
公开(公告)日：2011-03-31
申请号：JP2009215398
申请日：2009-09-17
申请人： Nhk Engineering Services Inc , Nippon Hoso Kyokai , 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： OKANO MASAHIRO , FURUTA HIROYUKI , NARISEI ZENICHI , NAKAHARA SHUNJI
IPC分类号： H04J11/00 , H04B7/02 , H04B7/04 , H04B7/06 , H04J99/00
摘要： PROBLEM TO BE SOLVED: To utilize the arrangement of a pilot carrier in a ground digital broadcasting as it is, and compute the response of a transmission line in response to a reception form. SOLUTION: A receiver 20 receives OFDM signals orthogonally encoding the pilot carriers at fixed places in transmission systems Tx1 and Tx2 as the OFDM signals utilizing the arrangements of the pilot carriers in ground digital broadcasting as they are. A transmission-line information generator 100 for an orthogonal pilot separation circuit 26 decides the reception forms on the basis of the amplitudes of the pilot carriers. A pilot-position transmission-line response computer 90 computes the responses of the transmission lines by using the reception pilot carriers in the time-axis direction for the reception form at the time "when the receiver 20 is at rest" and the responses of the transmission lines by using the reception pilot carriers in the frequency-axis direction for the reception form at the time "when the receiver 20 is moving" respectively. The accurate responses of the transmission lines is then computed precisely in response to the reception forms. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题是：将地面数字广播中的导频载波的布置原样使用，并且响应于接收形式来计算传输线的响应。解决方案：接收机20接收正交编码传输系统Tx1和Tx2中的固定位置处的导频载波的OFDM信号，作为利用地面数字广播中的导频载波的布置的OFDM信号。用于正交导频分离电路26的传输线信息生成器100基于导频载波的幅度来决定接收形式。导频位置传输线响应计算机90通过在“当接收机20处于静止状态”时使用接收形式的时间轴方向的接收导频载波来计算传输线路的响应，分别在“接收机20正在移动”时使用频率轴方向的接收导频载波作为接收形式的传输线路。然后响应于接收形式精确地计算传输线的准确响应。版权所有（C）2011，JPO＆INPIT

7. 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

8. 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

9. 发明专利

JP2012085117A Broadcast service transmitter and receiver, and program of the same 有权
标题翻译：广播服务发射机和接收机及其编程
公开(公告)号：JP2012085117A
公开(公告)日：2012-04-26
申请号：JP2010229948
申请日：2010-10-12
申请人： Nhk Engineering Services Inc , Nippon Hoso Kyokai , 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： JITSUI HITOSHI , OKANO MASAHIRO , NAKAHARA SHUNJI , UEHARA MICHIHIRO , FUJITA MASAMI , IMAIZUMI HIROYUKI , ISHIKAWA KOICHI , TOKORO YOICHI , AMANO YOSHITERU
IPC分类号： H04N7/173 , H04H20/16 , H04H60/27 , H04H60/72 , H04N5/76 , H04N5/91
摘要： PROBLEM TO BE SOLVED: To provide a transmitter which, when transmitting a content file by digital broadcast waves, processes supplementary information associated with the content file, and to provide a receiver and a program.SOLUTION: The transmitter is provided with: program schedule table generation means which generates a program schedule table; program schedule table transmission means which transmits the program schedule table at predetermined intervals; and content file transmission means which transmits a content file having an event identifier associated in the program schedule table in a data block by the carousel method. The content file transmission means has means which identifies content type information expressing supplementary information and transmits the supplementary information associated with the content file within the same TS in an accumulable and reservable manner.
摘要翻译：要解决的问题：提供一种发送器，当通过数字广播波发送内容文件时，处理与内容文件相关联的补充信息，并提供接收器和程序。解决方案：发射机设置有：生成节目表表的节目表表生成装置; 节目安排表发送装置，其以预定间隔发送节目安排表; 以及内容文件传输装置，其通过轮播方法在数据块中发送具有与程序调度表相关联的事件标识符的内容文件。内容文件传输装置具有识别表示补充信息的内容类型信息并且以可累积和可储存的方式在同一TS内发送与内容文件相关联的补充信息的装置。版权所有（C）2012，JPO＆INPIT

10. 发明专利

JP2011234044A Terrestrial digital television broadcast receiver 有权
标题翻译：地面数字电视广播接收机
公开(公告)号：JP2011234044A
公开(公告)日：2011-11-17
申请号：JP2010101364
申请日：2010-04-26
申请人： Nhk Engineering Services Inc , Nippon Hoso Kyokai , 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： FURUTA HIROYUKI , MURAYAMA KENICHI , OKANO MASAHIRO , TAGUCHI MAKOTO , HAMAZUMI HIROYUKI , TAKADA MASAYUKI
IPC分类号： H04N7/173 , H04B1/16 , H04H20/28 , H04H20/59 , H04H20/95 , H04H60/43 , H04N5/44
摘要： PROBLEM TO BE SOLVED: To provide a receiver which automatically creates a channel list of broadcast waves in accordance with a change in digital broadcast wave receiving area.SOLUTION: A receiver includes: channel detection information generating means for calculating a power value of an intermediate frequency (IF) signal obtained from frequency converting means and detecting an IF signal having a power value equal to or more than a criterion value; broadcast provider reference information storage means for relationally holding beforehand broadcast provider information and a channel number for each prefecture; AC extracting means for extracting an AC signal; AC decoding means for decoding broadcast provider identification information in an emergency earthquake prompt report in the extracted AC signal; and channel list creating means for creating a channel list by referring to the broadcast provider information for each prefecture held in the broadcast provider reference information storage means to search for a channel number corresponding to the broadcast provider identification information decoded by the AC decoding means, and associating the channel number obtained by the search with the channel detection information.
摘要翻译：要解决的问题：提供一种根据数字广播波接收区域的变化自动创建广播波的频道列表的接收机。接收机包括：信道检测信息产生装置，用于计算从频率转换装置获得的中频（IF）信号的功率值，并检测具有等于或大于标准值的功率值的IF信号; 广播提供者参考信息存储装置，用于预先关联每个县的广播提供者信息和频道号; AC提取装置，用于提取AC信号; AC解码装置，用于在所提取的AC信号中的紧急地震提示报告中解码广播提供者识别信息; 以及频道列表创建装置，用于通过参考广播提供商参考信息存储装置中保存的每个县的广播提供商信息来创建频道列表，以搜索与由AC解码装置解码的广播提供者识别信息相对应的频道号码，以及将通过搜索获得的频道号与频道检测信息相关联。版权所有（C）2012，JPO＆INPIT

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