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1. 发明专利

JP2006041568A Apparatus and method for data transmission 审中-公开
标题翻译：数据传输的装置和方法
公开(公告)号：JP2006041568A
公开(公告)日：2006-02-09
申请号：JP2004213841
申请日：2004-07-22
申请人： Hitachi Kokusai Electric Inc , Nippon Television Network Corp , 日本テレビ放送網株式会社 , 株式会社日立国際電気
发明人： MIYASHITA ATSUSHI , KATAYANAGI YUKIO , SATO MAKOTO , SAKUMA TAKEKI , KAI SO
IPC分类号： H04J11/00
摘要： PROBLEM TO BE SOLVED: To enable data transmission insusceptible to multi-path fading or ghost by performing RS coding of transmission data multiple times, and to improve the transmission tolerance without decreasing the transmission amount of data by efficiently utilizing auxiliary data to be used in an OFDM modulation system.
SOLUTION: This data transmission apparatus is one for performing transmission using a main data carrier and an auxiliary data carrier. The apparatus consists of a first coding processing unit for at least applying error correction coding to the transmission data, a second coding processing unit for doubly applying error correction coding to a signal from the first coding processing unit, and a modulating unit for modulating a signal from the first coding processing unit and a double error correction coder from the second coding processing unit. The modulating unit uses the main data carrier to transmit the signal from the first coding processing unit, and the double error correction coding unit uses the auxiliary data carrier to transmit the signal from the first coding processing unit.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过多次执行传输数据的RS编码，使多路径衰落或重影不能进行数据传输，并且通过有效利用辅助数据来提高传输容限而不降低数据传输量用于OFDM调制系统。解决方案：该数据发送装置是用于使用主数据载体和辅助数据载体执行传输的装置。该装置包括用于至少对传输数据应用纠错编码的第一编码处理单元，用于对来自第一编码处理单元的信号进行纠错编码的第二编码处理单元，以及用于调制信号的调制单元来自第一编码处理单元和来自第二编码处理单元的双纠错编码器。调制单元使用主数据载体来传输来自第一编码处理单元的信号，双纠错编码单元使用辅助数据载波来传输来自第一编码处理单元的信号。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2005175878A Ofdm modulation signal receiver 有权
标题翻译： OFDM调制信号接收机
公开(公告)号：JP2005175878A
公开(公告)日：2005-06-30
申请号：JP2003412926
申请日：2003-12-11
申请人： Hitachi Kokusai Electric Inc , Nippon Television Network Corp , 日本テレビ放送網株式会社 , 株式会社日立国際電気
发明人： NAKADA TATSUHIRO , MIYASHITA ATSUSHI , KATAYANAGI YUKIO , SATO MAKOTO , SAKUMA TAKEKI , KAI SO
IPC分类号： H04J11/00 , H04B7/08 , H04B7/26
摘要： PROBLEM TO BE SOLVED: To provide an OFDM modulation signal receiver which detects C/N at a base band and calculates a weighing factor corresponding to it for diversity synthesizing.
SOLUTION: The receiver comprises a noise level detecting means 30 in which a reception sample value series is applied with delay for effective symbol period over the entire system for diversity reception, and the delayed signal and the reception sample value series with no delay are applied with subtraction process. The result of subtraction is made into an absolute value, and on the basis of the result of the process, a noise level is detected. The receiver further comprises a means 26 for standardizing the noise level contained in the reception signal on the basis of the detection result, a means 28 for multiplication with a prescribed weighing factor on the basis of the reception signal after the standardizing process, and a means 29 for the addition of the signal resulting from multiplying with the weighing factor of the entire system.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种在基带检测C / N的OFDM调制信号接收机，并计算与其对应的加权系数用于分集合成。解决方案：接收机包括噪声电平检测装置30，其中接收采样值序列在整个分集接收系统上被延迟施加有效符号周期，延迟信号和接收采样值序列没有延迟应用减法处理。减法的结果为绝对值，并根据处理结果检测噪声电平。接收机还包括用于根据检测结果对包含在接收信号中的噪声电平进行标准化的装置26，用于根据标准化处理之后的接收信号与规定的加权因子相乘的装置28以及装置 29用于增加乘以整个系统的称重系数的信号。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2009153113A Automatic tracking device 有权
标题翻译：自动跟踪装置
公开(公告)号：JP2009153113A
公开(公告)日：2009-07-09
申请号：JP2008294415
申请日：2008-11-18
申请人： Hitachi Kokusai Electric Inc , Kato Denki Kogyosho:Kk , Nippon Television Network Corp , 日本テレビ放送網株式会社 , 株式会社加藤電気工業所 , 株式会社日立国際電気
发明人： MIYASHITA ATSUSHI , TANAKA MASAFUMI , FUJIKURA MIKIO , TAKEI HIROYUKI , MAKINO TETSUO , SAJI KEIICHI , KATSUTA MAKOTO , OGIKUBO RIKIYA
IPC分类号： H01Q3/24 , H04B7/10
CPC分类号： Y02D70/00 , Y02D70/442
摘要： PROBLEM TO BE SOLVED: To reduce the scale of this device, and to enable a reception antenna to precisely follow-up a transmission source, and to achieve the reduction of power consumption. SOLUTION: A reception antenna 1 includes right and left receivers 2R and 2L and upper and lower receivers 2U and 2D, and a changeover switch 3 is cyclicly and selectively switched in the order of the receivers 2R, 2L, 2U and 2D in each frame under the control of a timing controller 16, and those reception signals are sequentially output. The reception signals are supplied to level detectors 7R, 7L, 7U and 7D pertinent to those receivers 2R, 2L, 2U and 2D so that the level can be detected, and the direction of the reception antenna 1 is changed to follow-up a transmission source which is not shown in a figure in response to the detection level. Also, the output signal of the changeover switch 3 is supplied to an equalization demodulation part 15 as a main truck signal (a), and equalization-demodulated by using a preamble in each frame. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了减少该装置的规模，并且使得接收天线能够精确地跟踪传输源，并实现功耗的降低。解决方案：接收天线1包括左和右接收机2R和2L以及上和下接收机2U和2D，并且切换开关3以接收机2R，2L，2U和2D的顺序循环选择性地切换在定时控制器16的控制下的每个帧，并且顺序地输出那些接收信号。接收信号被提供给与这些接收机2R，2L，2U和2D相关的电平检测器7R，7L，7U和7D，使得可以检测电平，并且改变接收天线1的方向以跟随传输源，其在图中未示出以响应于检测水平。此外，切换开关3的输出信号作为主卡车信号（a）被提供给均衡解调部分15，并且通过在每帧中使用前同步码进行均衡解调。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2005136549A Digital transmission device 有权
标题翻译：数字传输设备
公开(公告)号：JP2005136549A
公开(公告)日：2005-05-26
申请号：JP2003368437
申请日：2003-10-29
申请人： Hitachi Kokusai Electric Inc , Nippon Television Network Corp , 日本テレビ放送網株式会社 , 株式会社日立国際電気
发明人： MIYASHITA ATSUSHI , SATO MAKOTO , KATAYANAGI YUKIO , SAKUMA TAKEKI , KAI SO
IPC分类号： H04J11/00
摘要： PROBLEM TO BE SOLVED: To provide a digital transmission device that sends and receives a transmit signal modulated by a multi-carrier digital modulation system, and grasps a deterioration state showing an abnormal state. SOLUTION: This digital transmission device is equipped with, on the side of a receiving device, an output device for two-dimensional display (8A, 11, 12, and 13), which is connected to a demodulation part modulating a received transmit signal, and outputs a frequency component in an X-axial direction, and an error level component based upon a decision threshold value of the demodulated signal in a Y-axial direction. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：提供发送和接收由多载波数字调制系统调制的发送信号的数字发送装置，并且掌握表示异常状态的劣化状态。解决方案：该数字传输设备在接收设备侧配备有用于二维显示器（8A，11,12和13）的输出设备，其连接到调制所接收的解调部件发送信号，并且输出X轴方向的频率分量和基于解调信号在Y轴方向上的判定阈值的误差电平分量。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2005102065A Digital transmission device and adapter therefor 有权
标题翻译：数字传输设备及其适配器
公开(公告)号：JP2005102065A
公开(公告)日：2005-04-14
申请号：JP2003335501
申请日：2003-09-26
申请人： Hitachi Kokusai Electric Inc , Nippon Television Network Corp , 日本テレビ放送網株式会社 , 株式会社日立国際電気
发明人： ABE ATSUSHI , MIYASHITA ATSUSHI , TAKEI HIROYUKI , KATAYANAGI YUKIO , SATO MAKOTO , SAKUMA TAKEKI
IPC分类号： H04N5/38 , H04B7/155 , H04J11/00
摘要： PROBLEM TO BE SOLVED: To provide a digital transmission device capable of determining a mode of an adapter for the digital transmission device.
SOLUTION: In each of a transmitting adapter 150 and a receiving adapter 250, a transmission mode from an enable signal for specifying the located position of an auxiliary data carrier from a transmitter body 100 or from a receiver body 200 is determined (152, 251). In the transmitting adapter, auxiliary data is output to the transmitter body based on the determined transmission mode. In the receiving adapter, the auxiliary data output from the receiver body is decoded on the basis of the determined transmission mode.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供能够确定数字传输设备的适配器的模式的数字传输设备。解决方案：在发送适配器150和接收适配器250的每一个中，确定来自用于指定辅助数据载体从发射器主体100或从接收器主体200定位的位置的使能信号的传输模式（152 ，251）。在发送适配器中，基于所确定的传输模式，将辅助数据输出到发射机主体。在接收适配器中，基于确定的传输模式对从接收机主体输出的辅助数据进行解码。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2008236244A Mobile relay transmission system 有权
标题翻译：移动中继传输系统
公开(公告)号：JP2008236244A
公开(公告)日：2008-10-02
申请号：JP2007071398
申请日：2007-03-19
申请人： Hitachi Kokusai Electric Inc , 株式会社日立国際電気
发明人： MIYASHITA ATSUSHI , NORIMATSU YOSHIHIRO
IPC分类号： H04B7/26 , H04B7/24 , H04W4/02 , H04W4/04 , H04W16/26 , H04W56/00 , H04W64/00 , H04W88/04
摘要： PROBLEM TO BE SOLVED: To provide a mobile relay transmission system capable of relaying only by radio waves of two waves regardless of the number of relay stations.
SOLUTION: Whey performing relaying from a mobile station M to a broadcasting center C via a plurality of relay stations Ra and Rb, the mobile station M is provided with a GPS device 2 to detect a position of the mobile station M, a radio wave propagation time delay caused by a difference between the length of a radio wave propagation route via the relay station Ra and the length of a radio wave propagation route via the relay station Rb is corrected to suppress a phase shift when a microwave transmitted from the relay station Ra to the broadcasting center C and a microwave transmitted from the relay station Rb to the broadcasting center C are made to have the same frequencies. In such a case, an evaluation result of a receiving state of the relay station is transmitted through other line, and only the relay station the radio wave quality of which is relatively satisfactory is allowed to perform retransmission.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供能够仅通过两个波的无线电波中继的移动中继传输系统，而不管中继站的数量如何。解决方案：通过多个中继站Ra和Rb从移动台M向广播中心C进行中继，移动台M设置有GPS装置2，用于检测移动台M的位置，通过中继站Ra的无线电波传播路径的长度与经由中继站Rb的无线电波传播路径的长度之间的差引起的无线电波传播时间延迟被校正，以抑制从中继站Ra到广播中心C，从中继站Rb发送到广播中心C的微波具有相同的频率。在这种情况下，通过其他线路发送中继站的接收状态的评价结果，只允许无线电波质量相对令人满意的中继站进行重发。版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2008060924A Transmission method adaptable to cross polarization 有权
标题翻译：适用于交叉极化的传输方法
公开(公告)号：JP2008060924A
公开(公告)日：2008-03-13
申请号：JP2006235627
申请日：2006-08-31
申请人： Hitachi Kokusai Electric Inc , 株式会社日立国際電気
发明人： MIYASHITA ATSUSHI
IPC分类号： H04B7/10 , H04L27/34
摘要： PROBLEM TO BE SOLVED: To attenuate the mutual crosstalk portion of the horizontally polarized waves and vertically polarized waves of a transmission system provided with a digital modulation part and a digital demodulation part. SOLUTION: The TS of the MPEG of different information by the vertically polarized waves and the horizontally polarized waves is inputted, Null insertion processing is provided in the respective systems of the horizontally polarized waves and the vertically polarized waves to make a TS rate be the same, a clock and a preamble period timing pulse are made to be in common, and the respective systems of the horizontally polarized waves and the vertically polarized waves are synchronized timewise. A preamble cycle is added for an even number of times and the mutual crosstalk portion of the horizontally polarized waves and the vertically polarized waves to be inverted every time are offset. Further, by subtraction with signals delayed for a preamble period, the mutual crosstalk portion is calculated, the mutual crosstalk portion is subtracted from the pre-decoding signals of an opposite party, then equalization is performed, demodulation is performed, error correction is performed, decoding is performed, and the TS is outputted. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了衰减设置有数字调制部分和数字解调部分的传输系统的水平极化波和垂直极化波的相互串扰部分。
解决方案：输入通过垂直极化波和水平极化波的不同信息的MPEG的TS，在水平极化波和垂直极化波的各个系统中提供空插入处理以使TS速率使得时钟和前同步码周期定时脉冲相同，并且水平极化波和垂直极化波的各个系统在时间上是同步的。一个前导码周期被添加到偶数次，并且水平极化波的相互串扰部分和每次反相的垂直极化波被偏移。此外，通过对延迟前导码周期的信号进行减法，计算相互串扰部分，从对方的预解码信号中减去相互串扰部分，然后进行均衡，进行解调，进行纠错，执行解码，并输出TS。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2007312000A Orthogonal frequency division multiplexing modulation digital transmission device 有权
标题翻译：正交频分多址调制数字传输装置
公开(公告)号：JP2007312000A
公开(公告)日：2007-11-29
申请号：JP2006137838
申请日：2006-05-17
申请人： Hitachi Kokusai Electric Inc , 株式会社日立国際電気
发明人： MIYASHITA ATSUSHI
IPC分类号： H04J11/00 , H04J1/00
摘要： PROBLEM TO BE SOLVED: To provide an orthogonal frequency division multiplexing modulation digital transmission device capable of obtaining a stable decision on a peak level even in the presence of an adjacent wave.
SOLUTION: An adjacency state detection part 16 and a variable BPF 17 are provided to the reception side R of the OFDM digital transmission device. When the adjacent wave is present for an OFDM modulated wave input through a transmission system M, the adjacency state detection part 16 detects it and then band characteristics of the variable BPF 17 and a threshold for peak level detection by a synchronization detection part 4 are switched and controlled according to the state of the adjacent wave, for example, which of an upper adjacent wave and a lower adjacent wave the adjacent wave is.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供即使在存在相邻波的情况下也能够获得关于峰值电平的稳定判定的正交频分复用调制数字传输装置。解决方案：向OFDM数字传输设备的接收侧R提供邻接状态检测部分16和变量BPF 17。当对于通过传输系统M输入的OFDM调制波存在相邻波时，邻接状态检测部分16检测它，然后切换可变BPF 17的频带特性和由同步检测部分4进行峰值电平检测的阈值并且根据相邻波的状态进行控制，例如相邻波的上邻近波和下相邻波的哪一个。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2007097029A Method and apparatus for grasping data transmission status 有权
标题翻译：用于数据传输状态的方法和装置
公开(公告)号：JP2007097029A
公开(公告)日：2007-04-12
申请号：JP2005286204
申请日：2005-09-30
申请人： Hitachi Kokusai Electric Inc , 株式会社日立国際電気
发明人： MIYASHITA ATSUSHI , KOYAMA JUN
IPC分类号： H04L27/34 , H04L29/14 , H04N17/00
摘要： PROBLEM TO BE SOLVED: To obtain the indication of a propagation status by speedily transmitting to a receiving side two-dimensional (2-D) display data information indicating the status of data transmission at a relay point. SOLUTION: In a digital transmission apparatus which maps a transmitting signal TS modulated by a digital modulation system into a 2-D signal, transmits/receives the mapped signal and identifies 2-D data to reproduce the transmitting signal TS, 2-D display data information is transmitted to a receiving side at the interval of a fixed period of time, a memory for transmission status display information is provided at the receiving side, an integer N is written into data in the memory of an address based on the transmission status display information, the memory is read in accordance with a display address, and data in the memory of the read address are subtracted one by one. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过快速向接收侧发送指示中继点处的数据传输状态的二维（2-D）显示数据信息来获得传播状态的指示。解决方案：在将由数字调制系统调制的发送信号TS映射为2-D信号的数字发送装置中，发送/接收映射信号并识别2-D数据以再现发送信号TS， D显示数据信息以固定时间段的间隔发送到接收侧，在接收侧设置用于发送状态显示信息的存储器，整数N被写入地址的存储器中的数据，基于发送状态显示信息，根据显示地址读取存储器，并逐个减去读取地址的存储器中的数据。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2007043520A Video sending device having active system and standby system 有权
标题翻译：具有活动系统和待机系统的视频发送设备
公开(公告)号：JP2007043520A
公开(公告)日：2007-02-15
申请号：JP2005226248
申请日：2005-08-04
申请人： Hitachi Kokusai Electric Inc , 株式会社日立国際電気
发明人： MIYASHITA ATSUSHI
IPC分类号： H04B1/74 , H04L29/14 , H04N7/173 , H04N21/238 , H04N21/24
摘要： PROBLEM TO BE SOLVED: To provide a video sending device having an active system and a standby system, which can speedily be switched to the standby system when an abnormality occurs in the active system. SOLUTION: In the video sending device having the active system A and at least one standby system, a digital video signal is distributed to the active system A and a standby system B, and an amount of video data of each video frame in a decoded output of the active system A is calculated by an video change detector 5a, and the active system is switched to the standby system B to output the video data when detecting that the amount of video data of each video frame is not changed. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有活动系统和备用系统的视频发送设备，当在活动系统中发生异常时，可以快速切换到备用系统。解决方案：在具有活动系统A和至少一个备用系统的视频发送设备中，将数字视频信号分配到活动系统A和备用系统B以及每个视频帧的视频数据量由视频改变检测器5a计算有源系统A的解码输出，并且当检测到每个视频帧的视频数据量没有改变时，有源系统切换到备用系统B以输出视频数据。版权所有（C）2007，JPO＆INPIT

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