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1. 发明授权

US07403472B2 OFDM receiving device and OFDM receiving method 有权
标题翻译： OFDM接收装置和OFDM接收方法
公开(公告)号：US07403472B2
公开(公告)日：2008-07-22
申请号：US11089810
申请日：2005-03-25
申请人： Takahiro Okada , Yoshikazu Miyato , Yasunari Ikeda , Tamotsu Ikeda
发明人： Takahiro Okada , Yoshikazu Miyato , Yasunari Ikeda , Tamotsu Ikeda
IPC分类号： H04J11/00
CPC分类号： H04L27/2656 , H04L5/023
摘要： The time required for switch the channel can be remarkably curtailed. When broadcasting signals through a plurality of information channels with an OFDM system, the plurality of information channels are multiplexed in the sense of frequency and collectively subjected to IFFT modulation for connected transmission instead of subjecting the plurality of information channels independently to OFDM modulation for transmission. With this arrangement, the efficiency of exploitation of frequencies is improved. According to the invention, the OFDM frames are synchronized for each information channel for the purpose of connected transmission. Then, the OFDM receiver can switch the information channel for signal reception, maintaining the frame synchronizing signals.
摘要翻译：切换通道所需的时间可以大大减少。当通过具有OFDM系统的多个信息信道广播信号时，多个信息信道在频率上被多路复用，并且对于所连接的发送集中地进行IFFT调制，而不是独立地对多个信道进行OFDM调制以进行传输。通过这种安排，提高了频率利用的效率。根据本发明，为了连接传输的目的，为每个信息信道同步OFDM帧。然后，OFDM接收机可以切换用于信号接收的信道，保持帧同步信号。

2. 发明申请

US20070297322A1 OFDM modulation/demodulation system 有权
标题翻译： OFDM调制/解调系统
公开(公告)号：US20070297322A1
公开(公告)日：2007-12-27
申请号：US11892135
申请日：2007-08-20
申请人： Yoshikazu Miyato , Yasunari Ikeda
发明人： Yoshikazu Miyato , Yasunari Ikeda
IPC分类号： H04J11/00
CPC分类号： H04L25/03866 , H04L1/0057 , H04L1/0059 , H04L1/0065 , H04L25/20 , H04L27/2627 , H04L27/2649 , H04L2027/0028
摘要： A radio relay system (1) comprises a wireless camera (11) and a signal receiving relay station (12). The wireless camera (11) wirelessly transmits signals to the signal receiving relay station (12) by using the OFDM modulation method. The wireless camera (11) and the signal receiving relay station (12) perform energy dispersion at the time of transmission-line-coding/decoding a transport stream. The PRBS seed (initial value) to be used for the energy dispersion can be externally modified and the user can arbitrarily select a value for the seed.
摘要翻译：无线电中继系统（1）包括无线照相机（11）和信号接收中继站（12）。无线摄像机（11）通过使用OFDM调制方式将信号无线发送到信号接收中继站（12）。无线照相机（11）和信号接收中继站（12）在对传输流进行传输线编码/解码时执行能量分散。用于能量色散的PRBS种子（初始值）可以被外部修改，用户可以任意选择种子的值。

3. 发明授权

US07327669B2 OFDM modem system 有权
标题翻译： OFDM调制解调器系统
公开(公告)号：US07327669B2
公开(公告)日：2008-02-05
申请号：US10129203
申请日：2001-09-07
申请人： Yoshikazu Miyato , Yasunari Ikeda
发明人： Yoshikazu Miyato , Yasunari Ikeda
IPC分类号： H04J14/02 , H04J9/00 , H04B7/216 , H04B1/00 , H04B10/08
CPC分类号： H04L25/03866 , H04L1/0057 , H04L1/0059 , H04L1/0065 , H04L25/20 , H04L27/2627 , H04L27/2649 , H04L2027/0028
摘要： A radio relay system (1) comprises a wireless camera (11) and a signal receiving relay station (12). The wireless camera (11) wirelessly transmits signals to the signal receiving relay station (12) by using the OFDM modulation method. The wireless camera (11) and the signal receiving relay station (12) perform energy dispersion at the time of transmission-line-coding/decoding a transport stream. The PRBS seed (initial value) to be used for the energy dispersion can be externally modified and the user can arbitrarily select a value for the seed.
摘要翻译：无线电中继系统（1）包括无线照相机（11）和信号接收中继站（12）。无线摄像机（11）通过使用OFDM调制方式将信号无线发送到信号接收中继站（12）。无线照相机（11）和信号接收中继站（12）在对传输流进行传输线编码/解码时执行能量分散。用于能量色散的PRBS种子（初始值）可以被外部修改，用户可以任意选择种子的值。

4. 发明申请

US20050169166A1 OFDM receiving device and OFDM receiving method 有权
标题翻译： OFDM接收装置和OFDM接收方法
公开(公告)号：US20050169166A1
公开(公告)日：2005-08-04
申请号：US11089810
申请日：2005-03-25
申请人： Takahiro Okada , Yoshikazu Miyato , Yasunari Ikeda , Tamotsu Ikeda
发明人： Takahiro Okada , Yoshikazu Miyato , Yasunari Ikeda , Tamotsu Ikeda
IPC分类号： H04J11/00 , H04L5/02 , H04L7/08 , H04L27/26
CPC分类号： H04L27/2656 , H04L5/023
摘要： The time required for switch the channel can be remarkably curtailed. When broadcasting signals through a plurality of information channels with an OFDM system, the plurality of information channels are multiplexed in the sense of frequency and collectively subjected to IFFT modulation for connected transmission instead of subjecting the plurality of information channels independently to OFDM modulation for transmission. With this arrangement, the efficiency of exploitation of frequencies is improved. According to the invention, the OFDM frames are synchronized for each information channel for the purpose of connected transmission. Then, the OFDM receiver can switch the information channel for signal reception, maintaining the frame synchronizing signals.
摘要翻译：切换通道所需的时间可以大大减少。当通过具有OFDM系统的多个信息信道广播信号时，多个信息信道在频率上被多路复用，并且对于所连接的发送集中地进行IFFT调制，而不是独立地对多个信道进行OFDM调制以进行传输。通过这种安排，提高了频率利用的效率。根据本发明，为了连接传输的目的，为每个信息信道同步OFDM帧。然后，OFDM接收机可以切换用于信号接收的信道，保持帧同步信号。

5. 发明授权

US06856590B2 OFDM transmission device and OFDM transmission method 有权
标题翻译： OFDM传输设备和OFDM传输方法
公开(公告)号：US06856590B2
公开(公告)日：2005-02-15
申请号：US09833996
申请日：2001-04-12
申请人： Takahiro Okada , Yoshikazu Miyato , Yasunari Ikeda , Tamotsu Ikeda
发明人： Takahiro Okada , Yoshikazu Miyato , Yasunari Ikeda , Tamotsu Ikeda
IPC分类号： H04J11/00 , H04B14/00 , H04L5/06 , H04L7/08
CPC分类号： H04L5/06
摘要： The time required for switch the channel can be remarkably curtailed. When broadcasting signals through a plurality of information channels with an OFDM system, the plurality of information channels are multiplexed in the sense of frequency and collectively subjected to IFFT modulation for connected transmission instead of subjecting the plurality of information channels independently to OFDM modulation for transmission. With this arrangement, the efficiency of exploitation of frequencies is improved. According to the invention, the OFDM frames are synchronized for each information channel for the purpose of connected transmission. Then, the OFDM receiver can switch the information channel for signal reception, maintaining the frame synchronizing signals.
摘要翻译：切换通道所需的时间可以大大减少。当通过具有OFDM系统的多个信息信道广播信号时，多个信息信道在频率上被多路复用，并且对于所连接的发送集中地进行IFFT调制，而不是独立地对多个信道进行OFDM调制以进行传输。通过这种安排，提高了频率利用的效率。根据本发明，为了连接传输的目的，为每个信息信道同步OFDM帧。然后，OFDM接收机可以切换用于信号接收的信道，保持帧同步信号。

6. 发明授权

US07505398B2 OFDM modulation/demodulation system 有权
标题翻译： OFDM调制/解调系统
公开(公告)号：US07505398B2
公开(公告)日：2009-03-17
申请号：US11892135
申请日：2007-08-20
申请人： Yoshikazu Miyato , Yasunari Ikeda
发明人： Yoshikazu Miyato , Yasunari Ikeda
IPC分类号： H04B7/216 , H04J11/00 , H04L27/00 , H04L27/06
CPC分类号： H04L25/03866 , H04L1/0057 , H04L1/0059 , H04L1/0065 , H04L25/20 , H04L27/2627 , H04L27/2649 , H04L2027/0028
摘要： A radio relay system (1) comprises a wireless camera (11) and a signal receiving relay station (12). The wireless camera (11) wirelessly transmits signals to the signal receiving relay station (12) by using the OFDM modulation method. The wireless camera (11) and the signal receiving relay station (12) perform energy dispersion at the time of transmission-line-coding/decoding a transport stream. The PRBS seed (initial value) to be used for the energy dispersion can be externally modified and the user can arbitrarily select a value for the seed.
摘要翻译：无线电中继系统（1）包括无线照相机（11）和信号接收中继站（12）。无线摄像机（11）通过使用OFDM调制方式将信号无线发送到信号接收中继站（12）。无线照相机（11）和信号接收中继站（12）在对传输流进行传输线编码/解码时执行能量分散。用于能量色散的PRBS种子（初始值）可以被外部修改，用户可以任意选择种子的值。

7. 发明授权

US07075949B2 OFDM receiving device and OFDM receiving method 有权
公开(公告)号：US07075949B2
公开(公告)日：2006-07-11
申请号：US09834282
申请日：2001-04-12
申请人： Takahiro Okada , Yoshikazu Miyato , Yasunari Ikeda , Tamotsu Ikeda
发明人： Takahiro Okada , Yoshikazu Miyato , Yasunari Ikeda , Tamotsu Ikeda
IPC分类号： H04J3/06 , H04J11/00 , H04J1/00
CPC分类号： H04L27/2656 , H04L5/023
摘要： The time required for switch the channel can be remarkably curtailed. When broadcasting signals through a plurality of information channels with an OFDM system, the plurality of information channels are multiplexed in the sense of frequency and collectively subjected to IFFT modulation for connected transmission instead of subjecting the plurality of information channels independently to OFDM modulation for transmission. With this arrangement, the efficiency of exploitation of frequencies is improved. According to the invention, the OFDM frames are synchronized for each information channel for the purpose of connected transmission. Then, the OFDM receiver can switch the information channel for signal reception, maintaining the frame synchronizing signals.

8. 发明授权

US5506836A Orthogonal frequency division multiplex demodulation 失效
标题翻译：正交频分复用解调
公开(公告)号：US5506836A
公开(公告)日：1996-04-09
申请号：US281169
申请日：1994-07-27
申请人： Yasunari Ikeda , Toshihisa Hyakudai , Osamu Ito , Yoshikazu Miyato
发明人： Yasunari Ikeda , Toshihisa Hyakudai , Osamu Ito , Yoshikazu Miyato
IPC分类号： H04J11/00 , H04L27/22 , H04L27/227 , H04L27/26 , H04L27/38
CPC分类号： H04L27/2662 , H04L27/2657 , H04L27/2675 , H04L27/2679
摘要： An orthogonal frequency division multiplex (OFDM) demodulation apparatus which accurately reproduces a clock and accurately generates a time window for discrete Fourier transformation (DFT) for stable demodulation of an OFDM modulated signal, wherein a clock reproduction circuit of the OFDM demodulation apparatus includes a Costas computation circuit and processes a signal corresponding to the specific carrier wave signal of a predetermined single wave for each symbol out of the I and Q channel signals obtained by subjecting the OFDM modulated signal to DFT to generate a control voltage using the Costas computation circuit and low pass filters and operates a voltage control oscillator to reproduce a clock signal. The clock signal is divided to produce the time window signals used in the DFT circuit.
摘要翻译：一种正交频分复用（OFDM）解调装置，其精确地再现时钟并且准确地生成用于OFDM调制信号的稳定解调的离散付里叶变换（DFT）的时间窗口，其中OFDM解调装置的时钟再生电路包括科斯塔斯计算电路，并且通过使用Costas计算电路对OFDM调制信号进行DFT生成控制电压而获得的I和Q信道信号中的每个符号处理对应于预定单波的特定载波信号的信号，并且使用Costas计算电路通过滤波器并操作压控振荡器来再现时钟信号。时钟信号被分割以产生在DFT电路中使用的时间窗信号。

9. 发明申请

US20120148807A1 INK COMPOSITION, INK JET RECORDING METHOD USING THE SAME AND RECORDED MATERIAL 有权
标题翻译：墨水组合物，使用其的记录材料的喷墨记录方法
公开(公告)号：US20120148807A1
公开(公告)日：2012-06-14
申请号：US13315781
申请日：2011-12-09
申请人： Yasunari Ikeda , Yasuhiro Oki , Kazuhiko Kitamura , Shigemi Wakabayashi , Ryosuke Teramoto , Hiromi Iseki
发明人： Yasunari Ikeda , Yasuhiro Oki , Kazuhiko Kitamura , Shigemi Wakabayashi , Ryosuke Teramoto , Hiromi Iseki
IPC分类号： C09D11/02 , B41J2/015 , B32B3/10
CPC分类号： C09D11/328 , C09D11/38 , Y10T428/24802
摘要： Disclosed are an ink composition containing at least one of a porphyrazine compound or a salt thereof and an aromatic compound having a sulfo group or a salt thereof, an ink jet recording method using the ink composition and a recorded material recorded by the recording method.
摘要翻译：公开了含有四氮杂卟啉化合物或其盐和具有磺基或其盐的芳族化合物中的至少一种的墨水组合物，使用该油墨组合物的喷墨记录方法和通过记录方法记录的记录材料。

10. 发明授权

US07356094B1 Digital broadcast receiving apparatus 失效
标题翻译：数字广播接收装置
公开(公告)号：US07356094B1
公开(公告)日：2008-04-08
申请号：US09936153
申请日：2000-03-10
申请人： Yasunari Ikeda , Toshihisa Hyakudai , Takahiro Okada , Tamotsu Ikeda
发明人： Yasunari Ikeda , Toshihisa Hyakudai , Takahiro Okada , Tamotsu Ikeda
IPC分类号： H03K9/00 , H04L27/00
CPC分类号： H04L27/2655 , H04L27/2647
摘要： A digital broadcast receiving apparatus for receiving a broadcast signal generated by combining sub signals modulated using a random sequence generated based on an initial value set in accordance with a frequency of a broadcast channel by a signal transmission control use signal and a main signal generated based on information source data and reproducing the information source data contained in the received broadcast signal.
摘要翻译：一种数字广播接收装置，用于接收通过组合使用基于根据广播频道的频率设置的初始值而生成的随机序列调制的子信号，通过信号传输控制使用信号和基于信息源数据，并且再现包含在所接收的广播信号中的信息源数据。

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