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1. 发明授权

US07447277B2 Ofdm demodulation device 失效
标题翻译： Ofdm解调装置
公开(公告)号：US07447277B2
公开(公告)日：2008-11-04
申请号：US10504341
申请日：2003-12-18
申请人： Atsushi Yajima , Kazuhisa Funamoto , Yasunari Ikeda
发明人： Atsushi Yajima , Kazuhisa Funamoto , Yasunari Ikeda
IPC分类号： H04L27/00 , H04L27/10 , H03K7/06
CPC分类号： H04L27/2605 , H04L7/02 , H04L27/2662 , H04L27/2676
摘要： An OFDM receiver (1) is provided which includes a clock-frequency error calculation circuit (41) to calculate a difference in clock frequency between a clock for a received signal and an operation clock used in the receiver (1), and a guard correlation/peak detection circuit (12) to determine an autocorrelation of a guard interval and detect a peak timing of the correlation signal. The guard correlation/peak detection circuit (12) incorporates a free-running counter, and outputs a count of the free-running counter at the peak timing to the clock-frequency error calculation circuit (41). The clock-frequency error calculation circuit (41) uses a plurality of time-change rate detection circuits provided at different time intervals to calculate a time-change rate of an input count. The clock-frequency error calculation circuit (41) plots the time-change rates to generate a histogram and calculates a clock-frequency error from the histogram.
摘要翻译：提供了一种OFDM接收器（1），其包括时钟频率误差计算电路（41），用于计算接收信号的时钟和接收机（1）中使用的操作时钟之间的时钟频率差，以及保护相关 /峰值检测电路（12），以确定保护间隔的自相关性并检测相关信号的峰值定时。保护相关/峰值检测电路（12）包含自由运行计数器，并将峰值定时的自由运行计数器的计数输出到时钟频率误差计算电路（41）。时钟频率误差计算电路（41）使用以不同时间间隔设置的多个时变速率检测电路来计算输入计数的时间变化率。时钟频率误差计算电路（41）绘制时间变化率以产生直方图，并根据直方图计算时钟频率误差。

2. 发明申请

US20050117667A1 Ofdm demodulation device 失效
标题翻译： Ofdm解调装置
公开(公告)号：US20050117667A1
公开(公告)日：2005-06-02
申请号：US10504341
申请日：2003-12-18
申请人： Atsushi Yajima , Kazuhisa Funamoto , Yasunari Ikeda
发明人： Atsushi Yajima , Kazuhisa Funamoto , Yasunari Ikeda
IPC分类号： H04N5/455 , H04J11/00 , H04L7/02 , H04L27/14 , H04L27/26
CPC分类号： H04L27/2605 , H04L7/02 , H04L27/2662 , H04L27/2676
摘要： An OFDM receiver (1) is provided which includes a clock-frequency error calculation circuit (41) to calculate a difference in clock frequency between a clock for a received signal and an operation clock used in the receiver (1), and a guard correlation/peak detection circuit (12) to determine an autocorrelation of a guard interval and detect a peak timing of the correlation signal. The guard correlation/peak detection circuit (12) incorporates a free-running counter, and outputs a count of the free-running counter at the peak timing to the clock-frequency error calculation circuit (41). The clock-frequency error calculation circuit (41) uses a plurality of time-change rate detection circuits provided at different time intervals to calculate a time-change rate of an input count. The clock-frequency error calculation circuit (41) plots the time-change rates to generate a histogram and calculates a clock-frequency error from the histogram.
摘要翻译：提供了一种OFDM接收器（1），其包括时钟频率误差计算电路（41），用于计算接收信号的时钟和接收机（1）中使用的操作时钟之间的时钟频率差，以及保护相关 /峰值检测电路（12），以确定保护间隔的自相关性并检测相关信号的峰值定时。保护相关/峰值检测电路（12）包含自由运行计数器，并将峰值定时的自由运行计数器的计数输出到时钟频率误差计算电路（41）。时钟频率误差计算电路（41）使用以不同时间间隔设置的多个时变速率检测电路来计算输入计数的时间变化率。时钟频率误差计算电路（41）绘制时间变化率以产生直方图，并根据直方图计算时钟频率误差。

3. 发明申请

US20050147186A1 Ofdm demodulation apparatus 审中-公开
标题翻译： Ofdm解调装置
公开(公告)号：US20050147186A1
公开(公告)日：2005-07-07
申请号：US10505794
申请日：2003-12-18
申请人： Kazuhisa Funamoto , Takahiro Okada , Tamotsu Ikeda , Atsushi Yajima , Yasunari Ikeda
发明人： Kazuhisa Funamoto , Takahiro Okada , Tamotsu Ikeda , Atsushi Yajima , Yasunari Ikeda
IPC分类号： H04J11/00 , H04L7/08 , H04L27/14 , H04L27/26
CPC分类号： H04L27/2605 , H04L27/2657 , H04L27/2662 , H04L27/2676
摘要： An OFDM demodulation (1) is provided which includes a guard correlation/peak time detection circuit (12) to generate a peak timing Np of a guard interval correlation value, and a timing synchronization circuit (13) to estimate a symbol-boundary time Nx from the peak timing Np. The timing synchronization circuit (13) calculates the symbol-boundary time Nx by filtering the peak time Np by a DLL (delay locked loop) filter (43). Further, the DLL filter (43) includes a limiter (52) to limit the range of phase-error component and an asymmetric gain circuit (53) to change the magnitude of the gain correspondingly to the polarity of the phase error to prevent the timing from being pulled out due to a fading or multipath.
摘要翻译：提供了一种OFDM解调（1），其包括：保护相关/峰值时间检测电路（12），用于产生保护间隔相关值的峰值定时Np;以及定时同步电路（13），用于估计符号边界时间Nx 从峰值时刻Np。定时同步电路（13）通过DLL（延迟锁定环）滤波器（43）对峰值时间Np进行滤波来计算符号边界时间Nx。此外，DLL滤波器（43）包括限制相位误差分量范围的限幅器（52）和非对称增益电路（53），以相应于相位误差的极性改变增益的幅度，以防止定时由于衰落或多路径而被拉出。

4. 发明申请

US20070070882A1 OFDM demodulating apparatus and method 失效
标题翻译： OFDM解调装置及方法
公开(公告)号：US20070070882A1
公开(公告)日：2007-03-29
申请号：US11489161
申请日：2006-07-19
申请人： Hidetoshi Kawauchi , Toshihisa Hyakudai , Takuya Okamoto , Atsushi Yajima , Taku Yamagata , Kazutaka Yamamoto , Shigenari Kawabata
发明人： Hidetoshi Kawauchi , Toshihisa Hyakudai , Takuya Okamoto , Atsushi Yajima , Taku Yamagata , Kazutaka Yamamoto , Shigenari Kawabata
IPC分类号： H04J11/00
CPC分类号： H04L25/0232 , H04L27/261 , H04L27/265 , H04L27/2662 , H04L27/2665
摘要： An orthogonal frequency division multiplexing (OFDM) demodulating apparatus includes a delay profile creating section, a Fourier converting section, a pilot signal extracting section, a transmission path characteristic estimating section, an inverse Fourier converting section, and a window control section. In this case, the window control section creates a delay profile for defining a calculation range by leaving a path which exists at a same position in both the delay profiles created by the delay profile creating section and the inverse Fourier converting section and the number of times of detection which is equal to or higher than a threshold value and defines a higher threshold value for the path at a predetermined position from the position of the main path within the delay profile created by the inverse Fourier converting section than for the paths at the other positions.
摘要翻译：正交频分复用（OFDM）解调装置包括延迟分布创建部分，傅里叶变换部分，导频信号提取部分，传输路径特性估计部分，傅里叶逆变换部分和窗口控制部分。在这种情况下，窗口控制部分通过在由延迟分布创建部分和逆傅里叶变换部分创建的两个延迟分布中的相同位置处留下一条路径和次数来创建用于定义计算范围的延迟分布检测值等于或高于阈值，并且在从由傅立叶逆变换部分创建的延迟分布内的主路径的位置处的预定位置处的路径定义更高的阈值，而不是在另一个路径职位

5. 发明授权

US08345941B2 Biological imaging device 有权
标题翻译：生物成像装置
公开(公告)号：US08345941B2
公开(公告)日：2013-01-01
申请号：US12992560
申请日：2008-05-15
申请人： Ichiro Oda , Atsushi Yajima , Kentaro Hizumi , Akimasa Mega , Tadafumi Kamikake , Yutaka Kuratani , Takeshi Fujita , Yoshio Tsunazawa
发明人： Ichiro Oda , Atsushi Yajima , Kentaro Hizumi , Akimasa Mega , Tadafumi Kamikake , Yutaka Kuratani , Takeshi Fujita , Yoshio Tsunazawa
IPC分类号： G06K9/00
CPC分类号： G01N21/6456 , G01N21/6486 , G01N21/763 , H04N5/2254 , H04N13/218
摘要： Optical waveguide paths to observe a sample on a sample holder from a plurality of directions while guiding an image of light in each direction which is emitted out of the sample toward a direction of a two dimensional detector via a main imaging lens include an optical waveguide path which never receives the light directly from the sample. The optical waveguide path which never receives the light directly from the sample forms an image of the sample within a substantial focus range of the main imaging lens, and includes optical elements arranged such that a light beam after formation of the image proceeds toward a direction of the main imaging lens. Optical elements on at least one optical waveguide path are those for forming real images. Therefore, the main imaging lens images the sample and those real images in block on the two dimensional detector.
摘要翻译：从多个方向观察样品架上的样品的光波导路径，同时经由主成像透镜沿着从样品朝向二维检测器的方向引出的每个方向上的光的图像被引导，包括光波导路径从来没有从样品中直接收到光。直接从样品接收光的光波导路径在主成像透镜的实质焦距范围内形成样品的图像，并且包括光学元件，其被布置成使得在形成图像之后的光束朝向主要成像镜头。至少一个光波导路径上的光学元件是用于形成真实图像的光学元件。因此，主要成像透镜在二维检测器上对样本和块中的实像进行成像。

6. 发明授权

US07701841B2 OFDM demodulating apparatus and method 失效
标题翻译： OFDM解调装置及方法
公开(公告)号：US07701841B2
公开(公告)日：2010-04-20
申请号：US11489161
申请日：2006-07-19
申请人： Hidetoshi Kawauchi , Toshihisa Hyakudai , Takuya Okamoto , Atsushi Yajima , Taku Yamagata , Kazutaka Yamamoto , Shigenari Kawabata
发明人： Hidetoshi Kawauchi , Toshihisa Hyakudai , Takuya Okamoto , Atsushi Yajima , Taku Yamagata , Kazutaka Yamamoto , Shigenari Kawabata
IPC分类号： H04J11/00
CPC分类号： H04L25/0232 , H04L27/261 , H04L27/265 , H04L27/2662 , H04L27/2665
摘要： An orthogonal frequency division multiplexing (OFDM) demodulating apparatus includes a delay profile creating section, a Fourier converting section, a pilot signal extracting section, a transmission path characteristic estimating section, an inverse Fourier converting section, and a window control section. In this case, the window control section creates a delay profile for defining a calculation range by leaving a path which exists at a same position in both the delay profiles created by the delay profile creating section and the inverse Fourier converting section and the number of times of detection which is equal to or higher than a threshold value and defines a higher threshold value for the path at a predetermined position from the position of the main path within the delay profile created by the inverse Fourier converting section than for the paths at the other positions.
摘要翻译：正交频分复用（OFDM）解调装置包括延迟分布创建部分，傅里叶变换部分，导频信号提取部分，传输路径特性估计部分，傅里叶逆变换部分和窗口控制部分。在这种情况下，窗口控制部分通过在由延迟分布形成部分和逆傅里叶变换部分创建的两个延迟分布中的相同位置处留下一条路径和次数来创建用于定义计算范围的延迟分布检测值等于或高于阈值，并且在由傅里叶逆变换部分创建的延迟分布内的主路径的位置处的预定位置处的路径定义更高的阈值，而不是在另一个路径职位

7. 发明授权

US08842173B2 Biological image acquisition device 有权
标题翻译：生物图像采集装置
公开(公告)号：US08842173B2
公开(公告)日：2014-09-23
申请号：US12809042
申请日：2008-12-25
申请人： Kentaro Hizume , Ichiro Oda , Atsushi Yajima , Yoshio Tsunazawa
发明人： Kentaro Hizume , Ichiro Oda , Atsushi Yajima , Yoshio Tsunazawa
IPC分类号： H04N7/18 , G01N21/64 , G06T15/50
CPC分类号： G01N21/6456
摘要： This object aims to disclose a biological multi-directional observation device with measures to avoid an illumination backlight problem taken. In a preferable embodiment of the multi-directional observation device, a two-dimensional detector (6) is arranged right above a transparent specimen support (2) and a main image forming lens (8) is arranged right under the two-dimensional detector (6). A fluorescence-side filter (10) which allows only a fluorescence component from a biological specimen (4) pass therethrough is arranged, if necessary, between the main image forming lens (8) and the biological specimen (4). Reflection mirrors (M1, M2) are arranged on the down side of the specimen support (2), wherein the reflection mirrors are optional systems for leading a light of an image of the rear side of the biological specimen (4) to the main image forming lens (8). A light source device is provided to irradiate light to biological specimen (4). A light source in the light source device is set at a position that is not in direct and indirect viewing fields (16, 18) of the two-dimensional detector, so that the backlight problem is avoided and a vivid biological multi-directional observation image by the two-dimensional observation image by the two-dimensional detector can be acquired.
摘要翻译：该目的旨在公开具有避免照明背光问题的措施的生物多方位观察装置。在多方向观察装置的优选实施方式中，在透明试样支架（2）的正上方配置二维检测器（6），在二维检测器的正下方配置有主图像形成透镜（8） 6）。如果需要，在主成像透镜（8）和生物样本（4）之间设置仅允许来自生物样本（4）的荧光成分通过的荧光侧滤光片（10）。反射镜（M1，M2）布置在样本支撑件（2）的下侧，其中反射镜是用于将生物样本（4）的后侧的图像的光引导到主图像的可选系统（8）。提供光源装置以将光照射到生物样本（4）上。光源装置中的光源被设置在不在二维检测器的直接和间接观察区域（16,18）的位置，从而避免了背光问题，并且生动地生物多方向观察图像通过二维检测器可以获得二维观察图像。

8. 发明申请

US20110168915A1 Fluorescence Imaging Apparatus and Method for Detecting Fluorescent Image 有权
标题翻译：荧光成像设备和荧光图像检测方法
公开(公告)号：US20110168915A1
公开(公告)日：2011-07-14
申请号：US13119418
申请日：2008-09-18
申请人： Atsushi Yajima , Ichiro Oda , Kentaro Hizume , Yoshio Tsunazawa
发明人： Atsushi Yajima , Ichiro Oda , Kentaro Hizume , Yoshio Tsunazawa
IPC分类号： G01N21/64
CPC分类号： G01N21/6458 , A61B5/0059 , G01J3/4406 , G01J2003/1226 , G01N21/6428 , G01N2021/6471 , G01N2201/0612 , G01N2201/064 , G02B5/285 , G02B21/0032 , G02B21/0076
摘要： In order to reduce light leak influencing the detection capability of a fluorescence imaging apparatus, an interference filter and an absorption filter on an emission-side filter section are arranged serially in the traveling direction of the fluorescence. The interference filter and the absorption filter that are in use for such an arrangement block the waveband light equivalent to the excitation light irradiated onto a sample while fully transmitting the waveband light equivalent to the fluorescence.
摘要翻译：为了减少影响荧光成像装置的检测能力的光泄漏，发射侧滤波器部分上的干涉滤光器和吸收滤光器在荧光的行进方向上串联布置。用于这种布置的干涉滤光器和吸收滤光器在完全透射等效于荧光的波段光的同时，阻挡与照射到样品上的激发光相当的波段光。

9. 发明申请

US20110164124A1 BIOLOGICAL IMAGE ACQUISITION DEVICE 有权
标题翻译：生物图像获取装置
公开(公告)号：US20110164124A1
公开(公告)日：2011-07-07
申请号：US12809042
申请日：2008-12-25
申请人： Kentaro Hizume , Ichiro Oda , Atsushi Yajima , Yoshio Tsunazawa
发明人： Kentaro Hizume , Ichiro Oda , Atsushi Yajima , Yoshio Tsunazawa
IPC分类号： H04N7/18
CPC分类号： G01N21/6456
摘要： This object aims to disclose a biological multi-directional observation device with measures to avoid an illumination backlight problem taken. In a preferable embodiment of the multi-directional observation device, a two-dimensional detector (6) is arranged right above a transparent specimen support (2) and a main image forming lens (8) is arranged right under the two-dimensional detector (6). A fluorescence-side filter (10) which allows only a fluorescence component from a biological specimen (4) pass therethrough is arranged, if necessary, between the main image forming lens (8) and the biological specimen (4). Reflection mirrors (M1, M2) are arranged on the down side of the specimen support (2), wherein the reflection mirrors are optional systems for leading a light of an image of the rear side of the biological specimen (4) to the main image forming lens (8). A light source device is provided to irradiate light to biological specimen (4). A light source in the light source device is set at a position that is not in direct and indirect viewing fields (16, 18) of the two-dimensional detector, so that the backlight problem is avoided and a vivid biological multi-directional observation image by the two-dimensional observation image by the two-dimensional detector can be acquired.
摘要翻译：该目的旨在公开具有避免照明背光问题的措施的生物多方位观察装置。在多方向观察装置的优选实施方式中，在透明试样支架（2）的正上方配置二维检测器（6），在二维检测器的正下方配置有主图像形成透镜（8） 6）。如果需要，在主成像透镜（8）和生物样本（4）之间设置仅允许来自生物样本（4）的荧光成分通过的荧光侧滤光片（10）。反射镜（M1，M2）布置在样本支架（2）的下侧，其中反射镜是用于将生物样本（4）的后侧的图像的光引导到主图像的可选系统（8）。提供光源装置以将光照射到生物样本（4）上。光源装置中的光源被设置在不在二维检测器的直接和间接观察区域（16,18）的位置，从而避免了背光问题，并且生动地生物多方向观察图像通过二维检测器可以获得二维观察图像。

10. 发明申请

US20110096967A1 Biological Imaging Device 有权
标题翻译：生物成像装置
公开(公告)号：US20110096967A1
公开(公告)日：2011-04-28
申请号：US12992560
申请日：2008-05-15
申请人： Ichiro Oda , Atsushi Yajima , Kentaro Hizumi , Akimasa Mega , Tadafumi Kamikake , Yutaka Kuratani , Takeshi Fujita , Yoshio Tsunazawa
发明人： Ichiro Oda , Atsushi Yajima , Kentaro Hizumi , Akimasa Mega , Tadafumi Kamikake , Yutaka Kuratani , Takeshi Fujita , Yoshio Tsunazawa
IPC分类号： G01N21/64 , G01J1/58 , G06K9/00
CPC分类号： G01N21/6456 , G01N21/6486 , G01N21/763 , H04N5/2254 , H04N13/218
摘要： Optical waveguide paths to observe a sample on a sample holder from a plurality of directions while guiding an image of light in each direction which is emitted out of the sample toward a direction of a two dimensional detector via a main imaging lens include an optical waveguide path which never receives the light directly from the sample. The optical waveguide path which never receives the light directly from the sample forms an image of the sample within a substantial focus range of the main imaging lens, and includes optical elements arranged such that a light beam after formation of the image proceeds toward a direction of the main imaging lens. Optical elements on at least one optical waveguide path are those for forming real images. Therefore, the main imaging lens images the sample and those real images in block on the two dimensional detector.
摘要翻译：从多个方向观察样品架上的样品的光波导路径，同时经由主成像透镜沿着从样品朝向二维检测器的方向引出的每个方向上的光的图像被引导，包括光波导路径从来没有从样品中直接收到光。直接从样品接收光的光波导路径在主成像透镜的实质焦距范围内形成样品的图像，并且包括光学元件，其被布置成使得在形成图像之后的光束朝向主要成像镜头。至少一个光波导路径上的光学元件是用于形成真实图像的光学元件。因此，主要成像透镜在二维检测器上对样本和块中的实像进行成像。

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