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1. 发明授权

US07069285B2 Decimation filter 失效
公开(公告)号：US07069285B2
公开(公告)日：2006-06-27
申请号：US10094852
申请日：2002-03-11
申请人： Hiroyuki Kawanishi , Akira Toyama
发明人： Hiroyuki Kawanishi , Akira Toyama
IPC分类号： G06F17/10
CPC分类号： H03H17/0664 , G06F17/17
摘要： Folding noises into signal bands are reduced and steeper cutoff characteristics are achieved without any increase in the scale of the circuit of a decimation filter attributable to the order of the filter coefficients and the bit precision of the same.Smaller attenuations are achieved in regions that do not contribute to folding noises, and filter coefficients are used to primarily attenuate signal components in regions contributing to folding noises and having a certain band width located about frequencies that are integral multiples of a decimated sampling frequency of 8 fs, thereby reducing folding noises compared to the prior art. Attenuations smaller than those in the prior art are achieved in other regions that do not contribute to folding noises to allow the filter coefficients to be used to make cutoff characteristics steeper accordingly, thereby achieving steeper cutoff characteristics while keeping folding noises at the level of the prior art.

2. 发明授权

US08240863B2 Illuminant device 有权
标题翻译：照明装置
公开(公告)号：US08240863B2
公开(公告)日：2012-08-14
申请号：US12664152
申请日：2008-05-29
申请人： Hideto Takeuchi , Kouichi Fujiwara , Akira Toyama
发明人： Hideto Takeuchi , Kouichi Fujiwara , Akira Toyama
IPC分类号： G09F13/04 , G09F13/08
CPC分类号： G02F1/133608 , G02F1/133308 , G02F2001/133311 , G02F2001/133314 , G02F2001/133328 , G02F2201/503
摘要： In a chassis which has a lid plate closing an opening portion of a frame part and in which a plurality of lamps are juxtaposed, the lid plate includes a plurality of plate bodies juxtaposed with their end parts superposed on each other and a connecting unit connects the superposed end parts of the plate bodies and the superposed end parts of the plate bodies, respectively.
摘要翻译：在具有闭合框架部分的开口部分并且多个灯并置的盖板的底盘中，盖板包括与它们的彼此重叠的端部并置的多个板体，并且连接单元将板体的叠置端部和板体的叠置端部分别。

3. 发明授权

US07672033B2 Light modulating apparatus 失效
标题翻译：光调制装置
公开(公告)号：US07672033B2
公开(公告)日：2010-03-02
申请号：US11700813
申请日：2007-02-01
申请人： Toshiaki Kobayashi , Kenji Uchida , Akira Toyama , Katsuya Ikezawa , Akira Miura , Yasukazu Akasaka
发明人： Toshiaki Kobayashi , Kenji Uchida , Akira Toyama , Katsuya Ikezawa , Akira Miura , Yasukazu Akasaka
IPC分类号： G02B26/00
CPC分类号： G02F1/0327 , G02F1/0123 , H04B10/501
摘要： In a light modulating apparatus of an external modulating type which is used in an optical communication system, there are provided an LN modulator, a light branching circuit, a photoelectric converter, a bias control circuit, a driver for an LN modulator which serves to drive the LN modulator in response to an input electric signal, a capacitor for cutting off DC and low frequency components of the input electric signal, a low frequency component compensating circuit for compensating the DC and low frequency components of the input electric signal, and an adding circuit for adding an output of the bias control circuit and that of the low frequency component compensating circuit and generating a bias control signal of the LN modulator.
摘要翻译：在光通信系统中使用的外调制光调制装置中，设置有LN调制器，光分支电路，光电转换器，偏置控制电路，用于驱动LN调制器的驱动器 LN调制器响应于输入电信号，用于切断DC的电容器和输入电信号的低频分量;用于补偿输入电信号的DC和低频分量的低频分量补偿电路，以及添加用于添加偏置控制电路的输出和低频分量补偿电路的输出的电路，并产生LN调制器的偏置控制信号。

4. 发明申请

US20070177252A1 Light modulating apparatus 失效
标题翻译：光调制装置
公开(公告)号：US20070177252A1
公开(公告)日：2007-08-02
申请号：US11700813
申请日：2007-02-01
申请人： Toshiaki Kobayashi , Kenji Uchida , Akira Toyama , Katsuya Ikezawa , Akira Miura , Yasukazu Akasaka
发明人： Toshiaki Kobayashi , Kenji Uchida , Akira Toyama , Katsuya Ikezawa , Akira Miura , Yasukazu Akasaka
IPC分类号： G02F1/00
CPC分类号： G02F1/0327 , G02F1/0123 , H04B10/501
摘要： In a light modulating apparatus of an external modulating type which is used in an optical communication system, there are provided an LN modulator, a light branching circuit, a photoelectric converter, a bias control circuit, a driver for an LN modulator which serves to drive the LN modulator in response to an input electric signal, a capacitor for cutting off DC and low frequency components of the input electric signal, a low frequency component compensating circuit for compensating the DC and low frequency components of the input electric signal, and an adding circuit for adding an output of the bias control circuit and that of the low frequency component compensating circuit and generating a bias control signal of the LN modulator.
摘要翻译：在光通信系统中使用的外调制光调制装置中，设置有LN调制器，光分支电路，光电转换器，偏置控制电路，用于驱动LN调制器的驱动器 LN调制器响应于输入电信号，用于切断DC的电容器和输入电信号的低频分量;用于补偿输入电信号的DC和低频分量的低频分量补偿电路，以及添加用于添加偏置控制电路的输出和低频分量补偿电路的输出的电路，并产生LN调制器的偏置控制信号。

5. 发明申请

US20070070488A1 Light modulation apparatus and light modulator control method 失效
公开(公告)号：US20070070488A1
公开(公告)日：2007-03-29
申请号：US11527561
申请日：2006-09-27
申请人： Akira Miura , Kenji Uchida , Katsuya Ikezawa , Hiroyuki Matsuura , Akira Toyama , Toshiaki Kobayashi , Tsuyoshi Yakihara , Kousuke Doi
发明人： Akira Miura , Kenji Uchida , Katsuya Ikezawa , Hiroyuki Matsuura , Akira Toyama , Toshiaki Kobayashi , Tsuyoshi Yakihara , Kousuke Doi
IPC分类号： G02F1/03
CPC分类号： G02F1/0123 , G02F1/2255 , G02F2001/212 , G02F2202/20 , G02F2203/21
摘要： A light modulation apparatus including a Mach-Zehnder type light modulator, a driver for modulator outputting a control signal according to an input electric signal, a light branching circuit branching the output light signal, and a bias control circuit applying a bias voltage to the light modulator based on the branched light signal, the apparatus further comprises: a burst pause state detection circuit detecting a pause state of a burst signal included in the input electric signal; a photoelectric transducer converting an output light signal branched by the light branching circuit into an electric signal; a sampling circuit extracting the electric signal converted while the pause state is detected by the burst pause state; and a bias voltage adjustment circuit adjusting a bias voltage value of the bias voltage based on a voltage level of the extracted electric signal.

6. 发明授权

US06719628B2 Video game device, play result display method of video game, and readable recording medium where play result display method program is recorded 失效
标题翻译：视频游戏装置，视频游戏的播放结果显示方法以及记录播放结果显示方法程序的可读记录介质
公开(公告)号：US06719628B2
公开(公告)日：2004-04-13
申请号：US09834258
申请日：2001-04-12
申请人： Toyomu Okishio , Hiroshi Tanibuchi , Akira Toyama , Mitsuo Nagamoto
发明人： Toyomu Okishio , Hiroshi Tanibuchi , Akira Toyama , Mitsuo Nagamoto
IPC分类号： A63F1300
CPC分类号： A63F13/537 , A63F13/10 , A63F13/573 , A63F13/812 , A63F2300/303 , A63F2300/64 , A63F2300/8011
摘要： A video game device includes monitor which displays game images, including a pitcher game character that executes a pitching action, a pitching instruction section for instructing a pitching course to the pitcher game character, a pitching storage section for storing the result of a pitch executed based on an instruction from the pitching instruction section for each pitch, a coordinate setting section for setting a two-dimensional coordinate for displaying a pitching course in a predetermined area on a display screen of the monitor, a data conversion section for converting the pitching course data of each pitch to a corresponding position data on the coordinate based on the pitching result read from the pitching storage section, and a mark display section for displaying a mark on the converted position on the coordinate.
摘要翻译：视频游戏装置包括显示游戏图像的监视器，包括执行投球动作的投手游戏角色，用于指示投球游戏角色的投球路线的投球指令部分，用于存储基于执行的音调的结果的投球存储部分根据对于每个音高的俯仰指令部分的指令，设置用于在监视器的显示屏幕上的预定区域中显示俯仰行程的二维坐标的坐标设定部分，用于将俯仰行程数据基于从俯仰存储部读取的俯仰结果，将坐标上的对应位置数据分配给坐标上的对应位置数据;以及标记显示部，用于在坐标上的转换位置上显示标记。

7. 发明授权

US06515601B2 Noise shaper 有权
标题翻译：噪音整形器
公开(公告)号：US06515601B2
公开(公告)日：2003-02-04
申请号：US09929171
申请日：2001-08-14
申请人： Yukio Fukuhara , Akira Toyama
发明人： Yukio Fukuhara , Akira Toyama
IPC分类号： H03M120
CPC分类号： H03M3/328 , H03M3/43 , H03M3/448 , H03M3/454 , H03M7/3008 , H03M7/3028 , H03M7/3035 , H03M7/304
摘要： A pole-shifted noise shaper whose transfer function has a Z-plane in which the pole has been shifted out of the origin. The noise shaper suppresses idle pattern. The noise shaper has a dither adder (17) placed immediately before a quantizer (16) to add a dither signal to data about to be applied to the quantizer (16). This suppresses attenuation of the dither signal due to noise shaping. Therefore, the dither signal can be supplied effectively. The idle pattern appearing in the output signal can be suppressed. Since the pattern of the dither signal is varied at a frequency that is {fraction (1/16)} to ⅛ of the frequency of the operating clock signal, the frequency of noise component due to the dither signal lowers. The signal and the dither signal component can be easily separated in a rear stage.
摘要翻译：一个极移噪声整形器，其传输函数具有一个Z平面，其中极点已经移出原点。噪音整形器抑制空闲模式。噪声整形器具有放置在量化器（16）之前的抖动加法器（17），以将抖动信号添加到要被施加到量化器（16）的数据。这抑制了由于噪声整形引起的抖动信号的衰减。因此，可以有效地提供抖动信号。可以抑制出现在输出信号中的空闲模式。由于抖动信号的模式以操作时钟信号的频率的1/16至1/8的频率变化，所以由抖动信号引起的噪声分量的频率降低。信号和抖动信号分量可以容易地在后级分离。

8. 发明授权

US4929947A Constant width pulse distribution in a digital to analog converter for serial digital data 失效
标题翻译：用于串行数字数据的数模转换器中的恒定宽度脉冲分布
公开(公告)号：US4929947A
公开(公告)日：1990-05-29
申请号：US176921
申请日：1988-04-04
申请人： Akira Toyama
发明人： Akira Toyama
IPC分类号： G11B20/10 , H03M1/68 , H03M3/02
CPC分类号： H03M3/372 , H03M3/50
摘要： A digital-to-analog converter comprising: a distributing circuit (2, 3, 4, 5; 2, 13, 14-26) for distributing data pulses, which are bit-serially supplied at constant time intervals, into a plurality of routesand for providing them as pulses having a constant width; and a converting circuit (12) for adding together the pulses from the distributing circuit and thereby for converting them to an analog output. Such a circuit arrangement can provide pulses for conversion to analog form which all have an identical waveform and an identical area, and errors caused by the difference between the rise and fall times of the pulses can be eliminated and therefore D/A conversion characteristics can be improved.
摘要翻译：一种数模转换器，包括：分配电路（2,3,4,5,2,13,14-26），用于分配以恒定时间间隔逐位提供的数据脉冲到多个路由并将它们提供为具有恒定宽度的脉冲; 以及用于将来自分配电路的脉冲相加在一起并由此将其转换成模拟输出的转换电路（12）。这样的电路装置可以提供用于转换成模拟形式的脉冲，其全部具有相同的波形和相同的面积，并且可以消除由脉冲的上升和下降时间之间的差引起的误差，因此D / A转换特性可以是改进。

9. 发明授权

US07965800B2 Clock recovery apparatus 失效
标题翻译：时钟恢复装置
公开(公告)号：US07965800B2
公开(公告)日：2011-06-21
申请号：US12037683
申请日：2008-02-26
申请人： Hiroshi Sugawara , Katsuya Ikezawa , Toshiaki Kobayashi , Yasukazu Akasaka , Akira Toyama , Toshimichi Suzuki , Hirotoshi Kodaka , Tsuyoshi Yakihara
发明人： Hiroshi Sugawara , Katsuya Ikezawa , Toshiaki Kobayashi , Yasukazu Akasaka , Akira Toyama , Toshimichi Suzuki , Hirotoshi Kodaka , Tsuyoshi Yakihara
IPC分类号： H04L7/00
CPC分类号： H04L7/0276
摘要： A clock recovery apparatus for generating a recovery clock from received data may include, but is not limited to, first and second oscillators. The first oscillator generates a first signal having a first frequency. The first signal synchronizes with the received data when the received data has a first level. The second oscillator is connected in series to the first oscillator. The second oscillator generates a second signal as the recovery clock when the first signal has a second level. The second signal has a second frequency. The second signal synchronizes with the first signal.
摘要翻译：用于从接收数据产生恢复时钟的时钟恢复装置可以包括但不限于第一和第二振荡器。第一振荡器产生具有第一频率的第一信号。当接收到的数据具有第一级时，第一信号与接收到的数据同步。第二振荡器与第一振荡器串联连接。当第一信号具有第二电平时，第二振荡器产生作为恢复时钟的第二信号。第二信号具有第二频率。第二信号与第一信号同步。

10. 发明授权

US07522660B2 Pulse pattern generating apparatus 失效
标题翻译：脉冲图案生成装置
公开(公告)号：US07522660B2
公开(公告)日：2009-04-21
申请号：US10897073
申请日：2004-07-23
申请人： Chie Sato , Shinji Kobayashi , Hirotoshi Kodaka , Ikurou Aoki , Kousuke Doi , Akira Toyama , Morio Wada , Hiroyuki Matsuura , Hiroshi Sugawara , Masamichi Ohashi , Hironori Okita , Yasukazu Akasaka , Tsuyoshi Yakihara , Akira Miura
发明人： Chie Sato , Shinji Kobayashi , Hirotoshi Kodaka , Ikurou Aoki , Kousuke Doi , Akira Toyama , Morio Wada , Hiroyuki Matsuura , Hiroshi Sugawara , Masamichi Ohashi , Hironori Okita , Yasukazu Akasaka , Tsuyoshi Yakihara , Akira Miura
IPC分类号： H04B3/46
CPC分类号： G01R31/3171 , G01R31/31928
摘要： An object of this invention is to realize a pulse pattern generating apparatus that outputs a test signal of high waveform quality even when the shape of an eye pattern is changed. This invention is an improvement of a pulse pattern generating apparatus that generates a test signal of a predetermined pattern by using plural digital-analog converters and outputs the test signal to a test subject. The apparatus includes: a parameter setting unit for setting values of plural parameters that determine the shape of an eye pattern of the test signal; a storage unit for storing output values to the digital-analog converters corresponding to the values of the parameters; an arithmetic operation unit for calculating output values to the digital-analog converters from the values of the parameters from the parameter setting unit and the output values in the storage unit; and a voltage value setting unit for setting, for the digital-analog converters, voltage values to be outputted from the digital-analog converters on the basis of the result of calculation by the arithmetic operation unit.
摘要翻译：本发明的一个目的是实现即使当眼图的形状改变时也输出高波形质量的测试信号的脉冲图形生成装置。本发明是通过使用多个数模转换器生成预定模式的测试信号并将测试信号输出给测试对象的脉冲图案生成装置的改进。该装置包括：参数设置单元，用于设置确定测试信号的眼图的形状的多个参数的值; 存储单元，用于根据参数的值存储对数模转换器的输出值; 算术运算单元，用于根据来自参数设定单元的参数值和存储单元中的输出值计算出数字模拟转换器的输出值; 以及电压值设定单元，用于根据算术运算单元的运算结果，对数模转换器设定从数模转换器输出的电压值。

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