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1. 发明专利

JP2005312082A Transmitting method, receiving method, transmitting apparatus and receiving apparatus 有权
标题翻译：发送方法，接收方法，发送装置和接收装置
公开(公告)号：JP2005312082A
公开(公告)日：2005-11-04
申请号：JP2005175401
申请日：2005-06-15
申请人： Matsushita Electric Ind Co Ltd , Nippon Hoso Kyokai , 日本放送協会 , 松下電器産業株式会社
发明人： KIMURA TOMOHIRO , HAYASHI KENICHIRO , KISODA AKIRA , SOGA SHIGERU , KAGEYAMA TEIJI , SAITO MASANORI , ISHIKAWA TATSUYA , MORI HITOSHI , TAKADA MASAYUKI , KURODA TORU , SASAKI MAKOTO
IPC分类号： H04J11/00 , H04L25/02 , H04L27/26
CPC分类号： H04L25/0204 , H04L27/2647
摘要： PROBLEM TO BE SOLVED: To realize high-quality demodulation and demodulation suitable for mobile reception. SOLUTION: Received OFDM signals are transformed from a time domain to a frequency domain by Fourier transformation (12) to generate a vector sequence of each carrier wave in the frequency domain. Necessary dispersion pilot signals and termination pilot signals are extracted (13) from the vector sequence and divided (15) by a modulation complex vector to estimate transmission line characteristics relative to the dispersion/termination pilot signals, and the transmission line characteristics are interpolated (16) to estimate transmission line characteristics relative to the information transmission carrier wave of a synchronous detection segment. On the other hand, the vector sequence obtained by Fourier transformation is delayed (17) by one symbol. The interpolation output is selected (18) in the case of the synchronous detection segment, and the delay output is selected (18) in the case of a differential detection segment. The vector sequence is divided (19) by the selected output, and the result is subjected to synchronous detection or differential detection and demodulated (20) to generate additional information and digital information. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：实现适合移动接收的高质量解调和解调。解决方案：通过傅里叶变换（12）将接收的OFDM信号从时域变换到频域，以产生频域中每个载波的矢量序列。从矢量序列提取必要的色散导频信号和终止导频信号（13），并通过调制复数向量（15）来估计相对于色散/终止导频信号的传输线特性，并将传输线特性进行内插（16 ）来估计相对于同步检测段的信息传输载波的传输线特性。另一方面，通过傅里叶变换获得的矢量序列被延迟（17）一个符号。在同步检测段的情况下选择插值输出（18），并且在差分检测段的情况下选择延迟输出（18）。矢量序列被所选择的输出分成（19），结果进行同步检测或差分检测并解调（20）以产生附加信息和数字信息。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2008113471A Receiving method, and receiving apparatus 有权
标题翻译：接收方法和接收装置
公开(公告)号：JP2008113471A
公开(公告)日：2008-05-15
申请号：JP2008024593
申请日：2008-02-04
申请人： Matsushita Electric Ind Co Ltd , Nippon Hoso Kyokai , 日本放送協会 , 松下電器産業株式会社
发明人： KIMURA TOMOHIRO , HAYASHI KENICHIRO , KISODA AKIRA , SOGA SHIGERU , KAGEYAMA TEIJI , SAITO MASANORI , ISHIKAWA TATSUYA , MORI HITOSHI , TAKADA MASAYUKI , KURODA TORU , SASAKI MAKOTO
IPC分类号： H04J11/00 , H04L25/02 , H04L27/26
CPC分类号： H04L25/0204 , H04L27/2647
摘要： PROBLEM TO BE SOLVED: To realize high quality demodulation and demodulation suitable for mobile reception. SOLUTION: Received OFDM signals are transformed from a time domain into a frequency domain by Fourier transformation (12) to generate a vector sequence of each carrier wave in the frequency domain. Necessary dispersion pilot signals and termination pilot signals are extracted (13) from the vector sequence and divided (15) by a modulation complex vector to estimate transmission line characteristics relative to the dispersion/termination pilot signals, and the transmission line characteristics are interpolated (16) to estimate transmission line characteristics relative to the information transmission carrier wave of a synchronous detection segment. The vector sequence obtained by Fourier transformation is delayed (17) by one symbol, on the other hand. The interpolation output is selected (18) in the case of the synchronous detection segment, and the delay output is selected (18) in the case of a differential detection segment. The vector sequence is divided (19) by the selected output, and the result is subjected to synchronous detection or differential detection and demodulated (20) to generate additional information and digital information. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：实现适合移动接收的高质量解调和解调。解决方案：通过傅立叶变换（12）将接收的OFDM信号从时域变换为频域，以产生频域中每个载波的矢量序列。从矢量序列提取必要的色散导频信号和终止导频信号（13），并通过调制复数向量（15）来估计相对于色散/终止导频信号的传输线特性，并将传输线特性进行内插（16 ）来估计相对于同步检测段的信息传输载波的传输线特性。另一方面，通过傅里叶变换获得的矢量序列被延迟（17）一个符号。在同步检测段的情况下选择插值输出（18），并且在差分检测段的情况下选择延迟输出（18）。矢量序列被所选择的输出分成（19），结果进行同步检测或差分检测并解调（20）以产生附加信息和数字信息。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2005304082A Transmission method, reception method, transmitter, and receiver 有权
标题翻译：传输方法，接收方法，发射机和接收机
公开(公告)号：JP2005304082A
公开(公告)日：2005-10-27
申请号：JP2005175400
申请日：2005-06-15
申请人： Matsushita Electric Ind Co Ltd , Nippon Hoso Kyokai , 日本放送協会 , 松下電器産業株式会社
发明人： KIMURA TOMOHIRO , HAYASHI KENICHIRO , KISODA AKIRA , SOGA SHIGERU , KAGEYAMA TEIJI , SAITO MASANORI , ISHIKAWA TATSUYA , MORI HITOSHI , TAKADA MASAYUKI , KURODA TORU , SASAKI MAKOTO
IPC分类号： H04J11/00 , H04L25/02 , H04L27/26
CPC分类号： H04L25/0204 , H04L27/2647
摘要： PROBLEM TO BE SOLVED: To realize high-quality demodulation and demodulation which is suitable for mobile reception. SOLUTION: Received OFDM signals are transformed from time domain into frequency domain by Fourier transformation (12), and generate a vector sequence for each carrier wave in the frequency domain is obtained. Necessary dispersion pilot signals and termination pilot signals are extracted (13) from the vector sequence and divided (15) by a modulation complex vector to estimate transmission line characteristics, relative to the dispersion/termination pilot signals; and the transmission line characteristics are interpolated (16), to estimate transmission line characteristics relative to the information transmission carrier wave of a synchronous detecting segment. The vector sequence obtained by Fourier transformation, however, is delayed (17) by one symbol. The interpolation output is selected (18) in the case of the synchronous detection segment, and the delay output is selected (18) in the case of a differential detection segment. The vector sequence is divided (19) by the selected output, and the result is subjected to synchronous detection or differential detection and is demodulated (20), to obtain additional information and digital information. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：实现适合于移动接收的高质量解调和解调。解决方案：通过傅里叶变换（12）将接收到的OFDM信号从时域变换为频域，得到频域中每个载波的矢量序列。从矢量序列提取必要的色散导频信号和终止导频信号（13），并用调制复数向量（15），相对于色散/终止导频信号来估计传输线路特性; 并且传输线特性被内插（16），以估计相对于同步检测段的信息传输载波的传输线特性。然而，通过傅里叶变换获得的矢量序列被延迟（17）一个符号。在同步检测段的情况下选择插值输出（18），并且在差分检测段的情况下选择延迟输出（18）。矢量序列被所选择的输出分成（19），结果进行同步检测或差分检测，并进行解调（20），以获得附加信息和数字信息。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2014116877A Wraparound canceller, and relay device 有权
标题翻译： WRAPAROUND CANCELLER和继电器
公开(公告)号：JP2014116877A
公开(公告)日：2014-06-26
申请号：JP2012271060
申请日：2012-12-12
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： TAKEUCHI TOMOAKI , SAITO MASANORI , SHIBUYA KAZUHIKO
IPC分类号： H04B7/015 , H04B7/005 , H04B7/208 , H04J11/00
摘要： PROBLEM TO BE SOLVED: To provide a wraparound canceller which eliminates wraparound caused by coupling between transmit and receive antennas and equalizes distortion caused by multipath when receiving a broadcast wave in which a plurality of unit transmission waves are combined, and a relay device for satisfactorily and stably relaying a host station wave while using the wraparound canceller.SOLUTION: A phase compensation portion 24 of a frequency characteristic calculation part 23 provided in a filter coefficient control section 20 of a wraparound canceller 1 compensates a phase by multiplying a carrier symbol of an equivalent baseband signal from an FFF 15 by a phase rotation correction amount obtained by inverting a code of a component of phase correction which has been applied for the unit of a segment on a transmission side. Namely, the phase of the carrier symbol is compensated by applying phase correction inverse to that on the transmission side. A channel estimation portion 25 estimates a channel response from the carrier symbol from the phase compensation portion 24. Thus, the channel response can be estimated while considering the component of phase correction which has been applied for the unit of a segment on the transmission side.
摘要翻译：要解决的问题：提供一种环绕消除器，其消除了由接收天线之间的耦合引起的环绕，并且当接收到多个单位传输波组合的广播波时，均衡由多路径引起的失真，以及用于令人满意地和在使用环绕消除器的同时稳定地中继主站波。解决方案：设置在环绕消除器1的滤波器系数控制部分20中的频率特性计算部分23的相位补偿部分24通过将等效的载波符号来自FFF15的基带信号通过相位旋转校正量反相，该相位旋转校正量通过反转已经针对发送侧的段的单位应用的相位校正的分量的代码而获得。即，通过将相位校正与发送侧的相位校正相反来补偿载波符号的相位。信道估计部分25从相位补偿部分24估计来自载波符号的信道响应。因此，可以在考虑已经针对发送侧的段的单位应用的相位校正的分量的情况下估计信道响应。

5. 发明专利

JP2014116872A Multicarrier modulated signal receiver 有权
标题翻译： MULTICARRIER调制信号接收器
公开(公告)号：JP2014116872A
公开(公告)日：2014-06-26
申请号：JP2012270958
申请日：2012-12-12
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： TAKEUCHI TOMOAKI , SAITO MASANORI , SHIBUYA KAZUHIKO
IPC分类号： H04J11/00 , H03M13/45
摘要： PROBLEM TO BE SOLVED: To provide a multicarrier modulated signal receiver of which the correction function by error correction decoding can be effectively utilized without estimating propagation path characteristics, and which has bit error resistance.SOLUTION: A multicarrier modulated signal receiver 1-1 comprises: an analysis bank 5 which substantially operates at a rate of twice of the maximum thinning rate; a linear equalizer 6; an equalization coefficient calculation part 7; a logarithmic likelihood ratio calculation part 8; and an error correction decoding part 9. The logarithmic likelihood ratio calculation part 8 comprises a transmission path reliability calculation part 55 and a subtractor 56 which calculate transmission path reliability from an equalization coefficient, and calculates a logarithmic likelihood ratio by using an error of a carrier symbol after equalization and the transmission path reliability. The transmission path reliability calculation part 55 calculates amplitudes of four systems of equalization coefficients from the equalization coefficient calculation part 7 for every tap, adds the amplitudes among the four systems, and normalizes the equalization coefficients so that an average of all subcarriers becomes 1 for addition results. The subtractor 56 subtracts the amplitude sum of the normalized equalization coefficients from a constant 2 and calculates the transmission path reliability.
摘要翻译：要解决的问题：提供一种多载波调制信号接收机，其中可以有效地利用误差校正解码的校正功能，而不估计传播路径特性，并具有误码阻抗。解码：多载波调制信号接收机1-1包括：分析库5，其基本上以最大稀疏率的两倍的速率运行; 线性均衡器6; 均衡系数计算部7; 对数似然比计算部8; 对数似然比计算部分8包括传输路径可靠性计算部分55和从均衡系数计算传输路径可靠性的减法器56，并且通过使用载波的误差来计算对数似然比均衡后的符号和传输路径可靠性。传输路径可靠性计算部分55从每个抽头的均衡系数计算部分7计算四个均衡系统系统的幅度，将四个系统之间的振幅相加，并且对均衡系数进行归一化，使得所有子载波的平均值变为1以用于加法结果。减法器56从常数2中减去归一化均衡系数的幅度和，并计算传输路径的可靠性。

6. 发明专利

JP2005229546A Download method of demodulation software, and receiver 有权
标题翻译：下载解密软件的方法和接收器
公开(公告)号：JP2005229546A
公开(公告)日：2005-08-25
申请号：JP2004038946
申请日：2004-02-16
申请人： Nippon Hoso Kyokai , 日本放送協会
发明人： SAITO MASANORI , ISO NAOHIKO
IPC分类号： G06F13/00 , H04B1/16 , H04B7/26 , H04J11/00 , H04M11/00 , H04Q7/38
摘要： PROBLEM TO BE SOLVED: To make a wide band communication system and a narrow band communication system each having different transmission capacity share a load effectively in the case of downloading signal demodulation software while making the both systems cooperate with each other and ensuring reliability when downloading the software.
SOLUTION: A receiver 1 includes: a wide band system demodulation section 10 for demodulating a reception signal of the wide band communication system; a wide band system data receiving section 11; a narrow band system demodulation section 12 for demodulating a reception signal of the narrow band communication system; a narrow band system data receiving section 13; a storage device 14 for storing narrow band communication system signal demodulation software or various kinds of additional information included in received data; a current location information storage section 15 for current location information; a determination section 16 for determining which signal demodulation software is to be downloaded to the narrow band system demodulation section 12; a demodulation software download control section 17 for controlling the download; and a narrow band communication system reception priority order storage section 18.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题为了使宽带通信系统和具有不同传输容量的窄带通信系统在下载信号解调软件的情况下有效地共享负载，同时使两个系统彼此协作并确保可靠性当下载软件时。解决方案：接收机1包括：宽带系统解调部分10，用于解调宽带通信系统的接收信号; 宽带系统数据接收部分11; 用于解调窄带通信系统的接收信号的窄带系统解调部分12; 窄带系统数据接收部分13; 存储装置14，用于存储窄带通信系统信号解调软件或包含在接收数据中的各种附加信息; 用于当前位置信息的当前位置信息存储部分15; 确定部分16，用于确定将哪个信号解调软件下载到窄带系统解调部分12; 用于控制下载的解调软件下载控制部分17; 和窄带通信系统接收优先顺序存储部分18.版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2005333473A Radio terminal for switching transmission media, and method for switching transmission media 有权
标题翻译：用于切换传输媒体的无线电终端和用于切换传输媒体的方法
公开(公告)号：JP2005333473A
公开(公告)日：2005-12-02
申请号：JP2004150654
申请日：2004-05-20
申请人： Nippon Hoso Kyokai , 日本放送協会
发明人： ISO NAOHIKO , SAITO MASANORI
IPC分类号： H04B1/16 , H04M11/00
摘要： PROBLEM TO BE SOLVED: To provide a radio terminal capable of selecting the optimum transmission medium in accordance with the quality of a transmission signal, being applied to a plurality of broadcasting and communication systems and improving convenience, and to provide a transmission media switching method.
SOLUTION: A received signal quality determining part 31 calculates a new received signal level on the basis of an inputted received signal level and a stored conversion value and outputs quality information being the new received signal level. A transmission medium selecting/control part 32 selects a transmission medium on the basis of inputted quality information, stored selection algorithm and reference information such as priority. In addition, the transmission medium selecting/control part 32 specifies modulation and demodulation software and downloads the modulation and demodulation software from a modulation and demodulation software storing part 33 to software radio modulating and demodulating parts 10 and 20.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够根据传输信号的质量选择最佳传输介质的无线终端，应用于多个广播和通信系统并提高方便性，并提供传输介质切换方式。解决方案：接收信号质量确定部分31基于输入的接收信号电平和存储的转换值来计算新的接收信号电平，并输出作为新的接收信号电平的质量信息。传输介质选择/控制部分32基于输入的质量信息，存储的选择算法和诸如优先级的参考信息来选择传输介质。此外，传输介质选择/控制部分32指定调制和解调软件，并将调制和解调软件从调制和解调软件存储部分33下载到软件无线电调制和解调部分10和20.版权所有（C ）2006年，日本特许厅和NCIPI

8. 发明专利

JP2004158968A Receiver for receiving a plurality of media 有权
公开(公告)号：JP2004158968A
公开(公告)日：2004-06-03
申请号：JP2002321189
申请日：2002-11-05
申请人： Nippon Hoso Kyokai , 日本放送協会
发明人： SAITO MASANORI , ISO NAOHIKO
IPC分类号： H04B1/16 , H04H20/00 , H04H40/18 , H04N5/44 , H04N17/00
摘要： PROBLEM TO BE SOLVED: To provide a receiver for receiving a plurality of media, capable of improving the reliability and functions for received signals by using the plurality of media in combination.
SOLUTION: A transmission medium to be used for reception is selected on the basis of information about the result of evaluation of the quality of received signals, and about an order of reception priority of the plurality of transmission media and control information for selecting the transmission media to be used for reception according to a predetermined algorithm. By doing this, the optimum transmission medium can always be used for reception.
COPYRIGHT: (C)2004,JPO

9. 发明专利

JP2000236313A QUADRATURE FREQUENCY DIVISION MULTIPLEX TRANSMISSION SYSTEM, TRANSMISSION EQUIPMENT AND RECEPTION EQUIPMENT THEREFOR 失效
公开(公告)号：JP2000236313A
公开(公告)日：2000-08-29
申请号：JP2000006857
申请日：2000-01-14
申请人： JISEDAI DIGITAL TELE HOSO SYS , MATSUSHITA ELECTRIC IND CO LTD , JAPAN BROADCASTING CORP
发明人： KIMURA TOMOHIRO , HAYASHI KENICHIRO , KISODA AKIRA , SOGA SHIGERU , KAGEYAMA TEIJI , SAITO MASANORI , ISHIKAWA TATSUYA , MORI HITOSHI , TAKADA MASAYUKI , KURODA TORU , SASAKI MAKOTO
IPC分类号： H04J11/00 , H04L25/02 , H04L27/26
摘要： PROBLEM TO BE SOLVED: To provide demodulation with high quality and demodulation suitable for mobile reception. SOLUTION: A received OFDM signal is transformed from the time domain to the frequency domain by Fourier transformation 12, and a vector array for each carrier in the frequency domain is provided. Required dispersion and terminal pilot signals are extracted from the vector array 13, transmission line characteristics related to the dispersion/terminal pilot signals are estimated by dividing them with a modulated complex vector 15, and transmission line characteristics related to the information transmission carrier of a segment for synchronous detection are estimated by interpolating these transmission line characteristics 16. Meantime, the vector array provided by Fourier transformation is delayed by one symbol 17, an interpolated output is selected in the case of segment for synchronous detection, but a delayed output is selected in the case of segment for differential detection 18, the synchronous detection or differential detection is performed 19 by dividing the vector array by the selected output and additional information and digital information are provided 20 by demodulation 20.

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