专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2010141878A Receiver for receiving emergency prompt report in terrestrial digital television broadcasting, transmitter for transmitting emergency prompt report, and transmission system 有权
标题翻译：接收地面数字电视广播应急报告的收件人，发送紧急报告报告的发射机和传输系统
公开(公告)号：JP2010141878A
公开(公告)日：2010-06-24
申请号：JP2009249366
申请日：2009-10-29
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 , TAGUCHI MAKOTO , HAMAZUMI HIROYUKI , TAKADA MASAYUKI , SHIBUYA KAZUHIKO
IPC分类号： H04B1/16 , H04H20/59 , H04H20/95 , H04H40/27 , H04H60/13 , H04N7/173 , H04N21/235 , H04N21/426 , H04N21/438 , H04N21/6336 , H04N21/6547 , H04N21/83
摘要： PROBLEM TO BE SOLVED: To provide a receiver for distinguishably receiving an AC signal surely transferring an emergency prompt report to a recipient of terrestrial digital television broadcasting and an AC signal for transmission for the purpose of a job of a broadcasting station, a transmitter for transmitting AC signals, and a transmission system. SOLUTION: The receiver includes: an AC extraction section 12 for extracting an AC carrier conveying an AC signal; a synchronizing signal pre-verification section 13 for verifying the extracted AC signal in comparison with a pattern for which it is predetermined whether or not a synchronizing signal is contained in the AC signal, and outputting telegraphic message information including an initiation flag signal for identifying presence/absence of an emergency prompt report only when the AC signal includes the synchronizing signal; and an AC information analysis section 3 for decoding the telegraphic message information when the initiation flag signal in the outputted telegraphic message information represents the presence of the emergency prompt report. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种接收机，用于区分地接收AC信号，确定将紧急提示报告传送给地面数字电视广播的接收方，以及AC信号用于广播电台的工作的传输，用于发送AC信号的发射机和传输系统。解决方案：接收机包括：AC提取部分12，用于提取传送AC信号的AC载波; 同步信号预验证部分13，用于与预定的模式相比较，用于验证所提取的AC信号，无论AC信号中是否包含同步信号，以及输出包括用于识别存在的启动标志信号的电报消息信息只有当AC信号包括同步信号时，不存在紧急提示报告; 以及AC信息分析部3，用于在输出的电报信息信息中的起始标志信号表示紧急提示报告的存在时对电报消息信息进行解码。版权所有（C）2010，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

JP2010263645A Transmitter and transmission system for transmitting emergency information on terrestrial digital broadcasting 有权
标题翻译：用于传输地面数字广播应急信息的发射机和传输系统
公开(公告)号：JP2010263645A
公开(公告)日：2010-11-18
申请号：JP2010153321
申请日：2010-07-05
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 , TAGUCHI MAKOTO , HAMAZUMI HIROYUKI , TAKADA MASAYUKI , SHIBUYA KAZUHIKO
IPC分类号： H04H20/59 , H04B1/16 , H04H20/95 , H04H40/27 , H04H60/12 , H04H60/13 , H04N7/173 , H04N21/235 , H04N21/426 , H04N21/438 , H04N21/6336 , H04N21/6547 , H04N21/83
摘要： PROBLEM TO BE SOLVED: To provide a transmitter and a transmission system for transmitting a terrestrial digital broadcasting wave including an AC signal. SOLUTION: The transmitter in the transmission system includes: a means for transmitting telegraphic information using the AC signal when using the AC signal for the purpose of transmitting emergency information, the telegraphic information including the same synchronizing signal as that of a TMCC signal for establishing frame synchronization of the AC signal, and a flag for identifying presence/absence of the emergency information. The transmitting means has a means for specifying, when using the AC signal for the purpose of transmitting the emergency information, the first 3 bits of the synchronizing signal as a packet structure identification indicating presence/absence of transmission of the emergency information and transmitting them. The receiver in the transmission system can decode the output telegraphic information when determining that the packet structure identification indicates that it is used for the purpose of transmitting the emergency information, and when the flag indicates it as emergency information. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于发送包括AC信号的地面数字广播波的发射机和传输系统。解决方案：传输系统中的发射机包括：当为了发送紧急信息而使用AC信号时，使用AC信号发送电报信息的装置，该电报信息包括与TMCC信号相同的同步信号用于建立AC信号的帧同步，以及用于识别紧急信息的存在/不存在的标志。发送装置具有用于当将用于发送紧急信息的AC信号用于当发送紧急信息时指定同步信号的前3位作为表示紧急信息的发送的有无的发送的分组结构标识的单元。当确定分组结构标识指示其用于发送紧急信息的目的以及当标志指示为紧急信息时，传输系统中的接收机可以对输出电报信息进行解码。版权所有（C）2011，JPO＆INPIT

4. 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

5. 发明专利

JP2014187683A Ofdm wave measuring apparatus and program 有权
标题翻译： OFDM波形测量装置和程序
公开(公告)号：JP2014187683A
公开(公告)日：2014-10-02
申请号：JP2013181762
申请日：2013-09-03
申请人： Nippon Hoso Kyokai , 日本放送協会
发明人： HONDA MADOKA , OKANO MASAHIRO , TAKADA MASAYUKI , JITSUI HITOSHI , NARISEI ZENICHI
IPC分类号： H04J11/00
摘要： PROBLEM TO BE SOLVED: To measure a signal of OFDM wave with high accuracy, by calculating the frequency error and the clock error with high accuracy, even if the signal power has a low level.SOLUTION: A symbol calculation unit 18-2 performs synchronous addition of carrier symbols of 4 groups, and counts the number of calculation symbols indicating the number of times of synchronous addition. An SP extraction unit 21-1 extracts an SP signal and a CP signal from the synchronous addition results of carrier symbols of 4 groups, on the basis of an SP pattern detected by an SP pattern detection unit 19. An error detection unit 22 observes a left end SP signal of the lowest frequency and a right end CP signal of the highest frequency, out of the SP signals and CP signals extracted by the SP extraction unit 21-1, and at a stage where the predetermined number of calculation symbols is exceeded, calculates the declination on the time axis for these SP signal and CP signal, thus detecting the frequency error and the clock error.
摘要翻译：要解决的问题：即使信号功率低，通过高精度地计算频率误差和时钟误差来测量高精度的OFDM波的信号。解码：符号计算单元18-2执行同步加入4组的载波符号，并计算指示同步加法次数的计算符号数。 SP提取单元21-1基于由SP模式检测单元19检测的SP模式，从4组的载波符号的同步相加结果中提取SP信号和CP信号。错误检测单元22观察在由SP提取单元21-1提取的SP信号和CP信号中的最低频率的左端SP信号和最高频率的右端CP信号，以及超过预定数量的计算符号的阶段，计算这些SP信号和CP信号在时间轴上的偏角，从而检测频率误差和时钟误差。

6. 发明专利

JP2010035222A Terrestrial digital broadcast retransmitter 有权
标题翻译：地理数字广播重播器
公开(公告)号：JP2010035222A
公开(公告)日：2010-02-12
申请号：JP2009256396
申请日：2009-11-09
申请人： Nippon Hoso Kyokai , 日本放送協会
发明人： NARISEI ZENICHI , OKANO MASAHIRO , TSUCHIDA KENICHI , TAKADA MASAYUKI , SHIBUYA KAZUHIKO
IPC分类号： H04B7/15
摘要： PROBLEM TO BE SOLVED: To provide a retransmitter with achievable miniaturization for broadcasting for a portable and mobile object, without requiring useless frequency allocation, with a short delay time. SOLUTION: A terrestrial digital broadcast retransmitter 1 includes 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 without performing Fourier transform 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)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供具有可实现的用于便携式和移动对象的广播的小型化的重发机，而不需要无用的频率分配，具有短的延迟时间。解决方案：地面数字广播转发器1包括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从多个接收的地面数字广播波中选择一个信道通道，并输出与通道相同的基带信号。每个数字处理部分311仅通过LPF电路301从等效基带信号的13个段中提取部分接收部分，而不执行傅立叶变换，并且当通过分段排列电路302连接时将部分接收部分分段。当加法电路400接收来自每个数字处理部分311的部分接收部分的等效基带信号相加地合成等效基带信号，并通过重传部分500重发作为一个信道的地面数字广播波的合成信号。（C）2010 ，JPO＆INPIT

7. 发明专利

JP2008178044A Ofdm receiver 有权
标题翻译： OFDM接收机
公开(公告)号：JP2008178044A
公开(公告)日：2008-07-31
申请号：JP2007011960
申请日：2007-01-22
申请人： Nippon Hoso Kyokai , 日本放送協会
发明人： YAMAZAKI RAITA , TAKADA MASAYUKI , HAMAZUMI HIROYUKI , SHIBUYA KAZUHIKO
IPC分类号： H04J11/00 , H04B7/08 , H04B7/10
摘要： PROBLEM TO BE SOLVED: To provide an OFDM receiver for compensating deterioration in reception quality, regardless of the fixed reception ambience and moving receive ambience, when two or more incoming waves which come from each and every direction are received. SOLUTION: The OFDM receiver 1 includes an array antenna unit 10, a rectangular demodulator 20; a direction forming unit 30, an AFC unit 40; a signal selecting switching unit 50; and a diversity composite unit 60. Even if the incoming direction of OFDM signal received by the array antenna portion 10 is not known, the direction forming unit 30 forms an N-system directional beam in an adaptive way, in a M-MSN method or M-DCMP method so that each incoming wave is subjected to separation and reception. In the AFC unit 40, the impact of the Doppler effect by the moving receive is compensated. In the signal selecting switching unit 50, an L-system signal with high signal level is chosen. The diversity composite unit 60 selects one interpolating process, according to one of symbol periods, until the switching turn of the L-system signal which has been transmitted, among two or more interpolation processes for performing symbol filter process, so that maximal ratio combining is performed for each sub-carrier. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：当接收来自每个方向的两个或多个入射波时，提供用于补偿接收质量恶化的OFDM接收机，而不管固定的接收环境和接收环境如何。解决方案：OFDM接收机1包括阵列天线单元10，矩形解调器20，方向形成单元30，AFC单元40; 信号选择切换单元50; 即使由阵列天线部10接收到的OFDM信号的输入方向未知，方向形成单元30也可以以M-MSN方式自适应地形成N系指向性波束， M-DCMP方法，使得每个入射波被分离和接收。在AFC单元40中，通过移动接收的多普勒效应的影响被补偿。在信号选择切换单元50中，选择具有高信号电平的L系统信号。分集复合单元60根据符号周期中的一个选择一个内插处理，直到在用于执行符号滤波处理的两个或更多个插值处理中已发送的L系统信号的切换转弯，使得最大比率组合为对每个子载体执行。版权所有（C）2008，JPO＆INPIT

8. 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

9. 发明专利

JP2007104221A Transmission control signal receiving circuit, transmission control signal receiver, and terrestrial digital television broadcast receiver using the same 有权
标题翻译：变速箱控制信号接收电路，变速器控制信号接收器和地面数字电视广播接收机
公开(公告)号：JP2007104221A
公开(公告)日：2007-04-19
申请号：JP2005290377
申请日：2005-10-03
申请人： Nippon Hoso Kyokai , 日本放送協会
发明人： HAMAZUMI HIROYUKI , ITO YASUHIRO , TAKADA MASAYUKI , TSUCHIDA KENICHI , OKANO MASAHIRO
IPC分类号： H04J11/00 , H04B1/16 , H04N5/44 , H04N7/16
摘要： PROBLEM TO BE SOLVED: To provide a transmission control signal receiving circuit capable of receiving transmission control signals with a simple circuit configuration, a transmission control signal receiver and a terrestrial digital television broadcast receiver using the same. SOLUTION: The transmission control signal receiving circuit receiving transmission control signal carriers of a terrestrial digital television broadcast, and demodulating transmission control signals from the transmission control signal carriers comprises: a quadrature demodulation circuit 42 that quadrature-demodulates reception signals using the frequency signals set to be a central frequency of two transmission control signal carriers, a transmission control signal carrier receiving circuit 44 that simultaneously receives the two transmission control signal carriers from the output signal of the quadrature demodulation circuit, using the frequency signal set to be the frequency 1/2 of difference of two transmission control signal carriers; and a detection circuit 46 for detecting two transmission control signal carriers received by the transmission control signal carrier receiving circuit. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够以简单的电路配置接收发送控制信号的发送控制信号接收电路，发送控制信号接收机和使用该发送控制信号的地面数字电视广播接收机。接收地面数字电视广播的发送控制信号载波的发送控制信号接收电路和来自发送控制信号载波的发送控制信号的解调包括：正交解调电路42，使用频率进行正交解调接收信号信号被设置为两个传输控制信号载波的中心频率;传输控制信号载波接收电路44，其使用频率信号设置为频率，同时从正交解调电路的输出信号接收两个传输控制信号载波两个传输控制信号载波的差值的1/2; 以及检测电路46，用于检测由发送控制信号载波接收电路接收的两个发送控制信号载波。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2011097355A Receiver and receiving method for performing iterative decoding of concatenated code data 有权
标题翻译：用于执行定义代码数据的迭代解码的接收器和接收方法
公开(公告)号：JP2011097355A
公开(公告)日：2011-05-12
申请号：JP2009249202
申请日：2009-10-29
申请人： Nippon Hoso Kyokai , 日本放送協会
发明人： NARISEI ZENICHI , YOKOHATA KAZUNORI , OKANO MASAHIRO , TAKADA MASAYUKI
IPC分类号： H03M13/29 , H03M13/45
摘要： 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
摘要翻译：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

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式