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1. 发明授权

US07920395B2 Pulse width modulation method for a power converter 有权
标题翻译：功率转换器的脉宽调制方法
公开(公告)号：US07920395B2
公开(公告)日：2011-04-05
申请号：US12246174
申请日：2008-10-06
申请人： Seiji Ishida , Atsuhiko Nakamura
发明人： Seiji Ishida , Atsuhiko Nakamura
IPC分类号： H02M7/521 , H02M5/42
CPC分类号： H02M7/53871
摘要： A pulse width modulation method has the steps of operating a second instruction signal so that each of the differences between two or three arbitrary instruction signals in three first instruction signals may become more than the predetermined value, and modulating in pulse width based on the second instruction signal.
摘要翻译：脉冲宽度调制方法具有以下步骤：操作第二指令信号，使得三个第一指令信号中的两个或三个任意指令信号之间的差异可能变得超过预定值，并且基于第二指令以脉冲宽度进行调制信号。

2. 发明申请

US20090040797A1 Pulse Width Modulation Method for a Power Converter 有权
标题翻译：电源转换器的脉宽调制方法
公开(公告)号：US20090040797A1
公开(公告)日：2009-02-12
申请号：US12246174
申请日：2008-10-06
申请人： Seiji ISHIDA , Atsuhiko Nakamura
发明人： Seiji ISHIDA , Atsuhiko Nakamura
IPC分类号： H02M1/00
CPC分类号： H02M7/53871
摘要： A pulse width modulation method has the steps of operating a second instruction signal so that each of the differences between two or three arbitrary instruction signals in three first instruction signals may become more than the predetermined value, and modulating in pulse width based on the second instruction signal.
摘要翻译：脉冲宽度调制方法具有以下步骤：操作第二指令信号，使得三个第一指令信号中的两个或三个任意指令信号之间的差异可能变得超过预定值，并且基于第二指令以脉冲宽度进行调制信号。

3. 发明授权

US5816913A Method and apparatus for measuring virtual time difference or virtual distance between mobile bodies, and storage medium storing programs for causing a computer to execute the method 失效
标题翻译：用于测量移动体之间的虚拟时间差或虚拟距离的方法和装置，以及用于使计算机执行该方法的存储程序的存储介质
公开(公告)号：US5816913A
公开(公告)日：1998-10-06
申请号：US723837
申请日：1996-09-30
申请人： Atsuhiko Nakamura
发明人： Atsuhiko Nakamura
IPC分类号： A63F9/14 , A63F13/10
CPC分类号： A63F13/57 , A63F13/10 , A63F13/53 , A63F13/803 , A63F9/143 , A63F2250/1063 , A63F2300/64 , A63F2300/8017
摘要： The present invention relates to a method, apparatus and computer readable medium for a race game. The method comprising the steps of: computing positions of first and second mobile bodies on a course defined within a predetermined coordinate space every predetermined sampling time; detecting whether the first or second mobile body, whichever is leading, passes a predetermined point on the course from computed positional information of the first and second mobile bodies on the course; detecting whether the following mobile body does not pass the predetermined point within a predetermined set time after the leading mobile body has passed the predetermined point, from the computed positional information; and indicating game over on a display when it is detected that the following mobile body does not pass the predetermined point within the set time. Also, the method relates to measure whether the distance between mobile modies exceeds a set value or not.
摘要翻译：本发明涉及一种赛车游戏的方法，装置和计算机可读介质。该方法包括以下步骤：在预定采样时间内计算在预定坐标空间内定义的路线上的第一和第二移动体的位置; 检测所述第一或第二移动体是否在所述路线上的所述第一移动体和所述第二移动体的计算位置信息之间通过所述路线上的预定点; 从计算出的位置信息中检测下一个移动体是否在超过预定点之后的预定设定时间内没有超过预定点; 并且当检测到下一个移动体在设定的时间内没有超过预定点时，在显示器上指示游戏结束。此外，该方法涉及测量移动模式之间的距离是否超过设定值。

4. 发明授权

US07433403B2 Pulse width modulation method for a power converter 有权
标题翻译：功率转换器的脉宽调制方法
公开(公告)号：US07433403B2
公开(公告)日：2008-10-07
申请号：US10737999
申请日：2003-12-18
申请人： Seiji Ishida , Atsuhiko Nakamura
发明人： Seiji Ishida , Atsuhiko Nakamura
IPC分类号： H03K9/08
CPC分类号： H02M7/53871
摘要： A pulse width modulation method has the steps of operating a second instruction signal so that each of the differences between two or three arbitrary instruction signals in three first instruction signals may become more than the predetermined value, and modulating in pulse width based on the second instruction signal.
摘要翻译：脉冲宽度调制方法具有以下步骤：操作第二指令信号，使得三个第一指令信号中的两个或三个任意指令信号之间的差异可能变得超过预定值，并且基于第二指令以脉冲宽度进行调制信号。

5. 发明授权

US06007423A Virtual course display method and game machine using the same 失效
标题翻译：虚拟课程显示方法和游戏机使用相同
公开(公告)号：US06007423A
公开(公告)日：1999-12-28
申请号：US747596
申请日：1996-11-12
申请人： Atsuhiko Nakamura
发明人： Atsuhiko Nakamura
IPC分类号： G09B9/04 , A63F13/00 , A63F13/10 , A63F9/22
CPC分类号： A63F13/52 , A63F13/10 , A63F13/803 , A63F2300/64 , A63F2300/66 , A63F2300/8017
摘要： The present invention relates to a virtual course display method of displaying on display means a virtual course, which is constructed by connecting a plurality of virtual course parts and where a virtual mobile body runs, the method comprising the steps of: randomly selecting a predetermined number of successively connectable virtual course parts data from among plural pieces of virtual course parts data having different shapes and each being connectable to at least one of other virtual course parts data; storing at least a connecting order of the selected predetermined number of virtual course parts data; constructing a virtual course including virtual course parts data a mobile body passes and a predetermined number of virtual course parts data following the former virtual course parts data based on the connecting order; generating an image of the virtual course; and displaying the image of the virtual course on the display means. The present invention also relates to a game machine and storage medium for the above method.
摘要翻译：本发明涉及一种在显示装置上显示虚拟场景的虚拟场景显示方法，虚拟场景是通过连接多个虚拟路线部分和虚拟移动体运行的方式构成的，该方法包括以下步骤：随机选择预定数量从具有不同形状的多个虚拟课程部分数据中可连接的虚拟课程部分数据，并且每个虚拟课程部分数据可连接到其他虚拟课程部分数据中的至少一个; 存储所选择的预定数量的虚拟路线部分数据的至少连接顺序; 基于所述连接顺序，构建包括移动体通过的虚拟路线部分数据和与所述前虚拟路线部分数据之后的预定数量的虚拟路线部分数据的虚拟路线; 生成虚拟场景的图像; 以及在显示装置上显示虚拟场景的图像。本发明还涉及一种用于上述方法的游戏机和存储介质。

6. 发明授权

US5175483A Method and an apparatus for computing moment of inertia in a motor speed controller, and a speed control method and apparatus for a motor 失效
标题翻译：用于计算电机速度控制器中的惯性运动的装置的方法和装置以及用于电动机的速度控制方法和装置
公开(公告)号：US5175483A
公开(公告)日：1992-12-29
申请号：US763144
申请日：1991-09-20
申请人： Hiroshi Fujii , Atsuhiko Nakamura , Takatsugu Kambara , Satoshi Ibori
发明人： Hiroshi Fujii , Atsuhiko Nakamura , Takatsugu Kambara , Satoshi Ibori
IPC分类号： H02P27/06 , H02P21/00 , H02P27/04
CPC分类号： H02P21/143 , H02P21/13 , H02P21/16 , H02P27/047 , H02P21/00
摘要： In a motor speed controller for controlling an AC motor to be driven at a variable speed, a signal proportional to a load torque and a signal proportional to an output torque of the AC motor are found by current detecting means for detecting the primary current of the AC motor, and integrated over the speed changing period, and the integrated values are divided by the values corresponding to the amounts of speed change during the speed changing period so that the moment of inertia can be computed. In addition, there is provided means for changing the rate of output frequency change caused by the output frequency command into a value according to the calculated moment of inertia. Moreover, there is provided a circuit for detecting a sudden change of the calculated moment of inertia, so that when a sudden change occurs, an abnormality signal is generated.

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