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1. 发明申请

US20070001669A1 STATIONARY POSITION DETECTION CIRCUIT AND MOTOR DRIVE CIRCUIT 有权
标题翻译：静态位置检测电路和电机驱动电路
公开(公告)号：US20070001669A1
公开(公告)日：2007-01-04
申请号：US11476052
申请日：2006-06-28
申请人： Satoshi Narumi , Masaharu Hoashi , Toshiya Suzuki , Daisuke Suetsugu , Hikaru Nakamura
发明人： Satoshi Narumi , Masaharu Hoashi , Toshiya Suzuki , Daisuke Suetsugu , Hikaru Nakamura
IPC分类号： G01B7/30
CPC分类号： G01D5/208
摘要： A stationary position detection circuit and a motor drive circuit capable of more properly detecting the rotor position are disclosed. The stationary position detection circuit supplies an alternating current to each phase load of the motor. The time during which the current flows in a first direction and the time during which the current flows in a second direction opposite to the first direction are converted into electrical signals and amplified. In accordance with the value of the electrical signals, the position of the motor rotor in stationary mode is determined. The use of the alternating current, unlike the kickback voltage, makes it possible to improve the detection accuracy by amplifying the electrical signals with an increased number of alternations. An increased number of alternations can amplify the electrical signals without increasing the value of the alternating current, and therefore, unlike in the case of the kickback voltage, the alternating current of a large value is not required. As a result, the alternating current can be reduced to a small value and the vibration can be suppressed.
摘要翻译：公开了能够更适当地检测转子位置的静止位置检测电路和电动机驱动电路。静止位置检测电路向电机的各相负载提供交流电。电流沿第一方向流动的时间和电流沿与第一方向相反的第二方向流动的时间被转换成电信号并被放大。根据电信号的值，确定电机转子在静止模式下的位置。与反冲电压不同，使用交流电可以通过以增加的交替次数放大电信号来提高检测精度。增加的交替数量可以放大电信号而不增加交流电流的值，因此与反冲电压不同，不需要大值的交流电。结果，可以将交流电流减小到较小的值，并且可以抑制振动。

2. 发明申请

US20070110410A1 Stationary position detection circuit and motor drive circuit 审中-公开
公开(公告)号：US20070110410A1
公开(公告)日：2007-05-17
申请号：US11649838
申请日：2007-01-05
申请人： Satoshi Narumi , Masaharu Hoashi , Toshiya Suzuki , Daisuke Suetsugu , Hikaru Nakamura
发明人： Satoshi Narumi , Masaharu Hoashi , Toshiya Suzuki , Daisuke Suetsugu , Hikaru Nakamura
IPC分类号： H02P7/288
CPC分类号： G01D5/208
摘要： A stationary position detection circuit and a motor drive circuit capable of more properly detecting the rotor position are disclosed. The stationary position detection circuit supplies an alternating current to each phase load of the motor. The time during which the current flows in a first direction and the time during which the current flows in a second direction opposite to the first direction are converted into electrical signals and amplified. In accordance with the value of the electrical signals, the position of the motor rotor in stationary mode is determined. The use of the alternating current, unlike the kickback voltage, makes it possible to improve the detection accuracy by amplifying the electrical signals with an increased number of alternations. An increased number of alternations can amplify the electrical signals without increasing the value of the alternating current, and therefore, unlike in the case of the kickback voltage, the alternating current of a large value is not required. As a result, the alternating current can be reduced to a small value and the vibration can be suppressed.

3. 发明授权

US07176677B2 Stationary position detection circuit and motor drive circuit 有权
标题翻译：固定位置检测电路和电机驱动电路
公开(公告)号：US07176677B2
公开(公告)日：2007-02-13
申请号：US11476052
申请日：2006-06-28
申请人： Satoshi Narumi , Masaharu Hoashi , Toshiya Suzuki , Daisuke Suetsugu , Hikaru Nakamura
发明人： Satoshi Narumi , Masaharu Hoashi , Toshiya Suzuki , Daisuke Suetsugu , Hikaru Nakamura
IPC分类号： G01B7/30 , G05D3/00
CPC分类号： G01D5/208
摘要： A stationary position detection circuit and a motor drive circuit capable of more properly detecting the rotor position are disclosed. The stationary position detection circuit supplies an alternating current to each phase load of the motor. The time during which the current flows in a first direction and the time during which the current flows in a second direction opposite to the first direction are converted into electrical signals and amplified. In accordance with the value of the electrical signals, the position of the motor rotor in stationary mode is determined. The use of the alternating current, unlike the kickback voltage, makes it possible to improve the detection accuracy by amplifying the electrical signals with an increased number of alternations. An increased number of alternations can amplify the electrical signals without increasing the value of the alternating current, and therefore, unlike in the case of the kickback voltage, the alternating current of a large value is not required. As a result, the alternating current can be reduced to a small value and the vibration can be suppressed.
摘要翻译：公开了能够更适当地检测转子位置的静止位置检测电路和电动机驱动电路。静止位置检测电路向电机的各相负载提供交流电。电流沿第一方向流动的时间和电流沿与第一方向相反的第二方向流动的时间被转换成电信号并被放大。根据电信号的值，确定电机转子在静止模式下的位置。与反冲电压不同，使用交流电可以通过以增加的交替次数放大电信号来提高检测精度。增加的交替数量可以放大电信号而不增加交流电流的值，因此与反冲电压不同，不需要大值的交流电。结果，可以将交流电流减小到较小的值，并且可以抑制振动。

4. 发明申请

US20060195257A1 Vehicle navigation apparatus 有权
标题翻译：车载导航仪
公开(公告)号：US20060195257A1
公开(公告)日：2006-08-31
申请号：US11203658
申请日：2005-08-12
申请人： Hikaru Nakamura
发明人： Hikaru Nakamura
IPC分类号： G01C21/32
CPC分类号： G01C21/3632 , G01C21/367 , Y10S345/96
摘要： A vehicle navigation apparatus is provided which can reliably guide a vehicle along a guidance route when the vehicle approaches an intersection of interest at which it is to make a turn even if another intersection exists between a vehicle position and the intersection of interest. A controller determines whether or not another intersection exists between the vehicle position and the next guidance intersection (an intersection at which the vehicle is to make a turn) when the vehicle reaches a predetermined distance from the guidance intersection. If another intersection is determined to exist, an intersection guidance map with an arrow indicative of the guidance route colored in a predetermined color is displayed on a display device. In one embodiment, if another intersection does not exist between the vehicle and the guidance intersection, the color of the arrow displayed is changed to a different color.
摘要翻译：一种车辆导航装置，其能够在车辆接近要进行转弯的交叉路口时，即使在车辆位置和利益交叉点之间存在另一交叉路口，也可以沿着引导路线可靠地引导车辆。当车辆从引导路口到达预定距离时，控制器确定在车辆位置与下一个引导路口（车辆将要转弯的交点）之间是否存在另一个交叉路口。如果确定存在另一个交叉点，则在显示装置上显示具有指示以预定颜色着色的引导路线的箭头的交叉引导图。在一个实施例中，如果在车辆和引导路口之间不存在另一个交叉路口，则显示的箭头的颜色被改变为不同的颜色。

5. 发明授权

US06445999B1 Navigation system and method of displaying a quasi-three-dimensional map information 失效
标题翻译：显示准三维地图信息的导航系统和方法
公开(公告)号：US06445999B1
公开(公告)日：2002-09-03
申请号：US09955749
申请日：2001-09-19
申请人： Hikaru Nakamura
发明人： Hikaru Nakamura
IPC分类号： G01C2130
CPC分类号： G01C21/367
摘要： In displaying map information, a map drawing unit generates map drawing data with an equal scale factor and a coordinate conversion unit does not execute coordinate conversion to an area a including the screen center and the lower area thereof, and writes in a VRAM the map drawing data that maintains the scale factor as it is. Further, the coordinate conversion unit writes in the VRAM map drawing data reduced with a specific reduction scale factor only in the horizontal direction as to each of the areas on the left and right of the area a; map drawing data reduced with a specific reduction scale factor only in the vertical direction as to the area directly above the area a; and map drawing data reduced with specific reduction scale factors both in the horizontal and vertical directions as to each of the areas located obliquely left above and obliquely right above the area a. Thus, the navigation system of the invention lightens the burden of calculation processing, displays detailed information of the most important area surrounding the vehicle position, and provides a seemingly bird's-eye view display, namely, quasi-three-dimensional map information, that gives a user an extensive view.
摘要翻译：在显示地图信息时，地图绘制单元生成具有相同比例因子的地图绘制数据，坐标转换单元不对包括屏幕中心及其下部区域的区域a执行坐标转换，并在VRAM中写入地图保持比例因子的数据。此外，坐标转换单元仅在区域a的左侧和右侧的每个区域的水平方向上写入以特定缩小比例因子缩小的VRAM地图绘制数据; 地图绘制数据仅在垂直方向上以特定的缩小比例因子缩小，直到区域a正上方; 并且在水平和垂直方向上以特定的缩小比例因子缩小地图绘制数据，即对于位于区域a的斜上方和斜方向上方的每个区域。因此，本发明的导航系统减轻计算处理的负担，显示围绕车辆位置的最重要区域的详细信息，并且提供一种看似鸟瞰图的显示，即准三维地图信息，其给出用户广泛的观点。

6. 发明授权

US07502685B2 Vehicle navigation apparatus and method with traveling direction indication at guidance intersection 有权
标题翻译：引导交叉路口行车方向指示车辆导航装置及方法
公开(公告)号：US07502685B2
公开(公告)日：2009-03-10
申请号：US11203658
申请日：2005-08-12
申请人： Hikaru Nakamura
发明人： Hikaru Nakamura
IPC分类号： G01C21/30 , G01C21/32
CPC分类号： G01C21/3632 , G01C21/367 , Y10S345/96
摘要： A vehicle navigation apparatus is provided which can reliably guide a vehicle along a guidance route when the vehicle approaches an intersection of interest at which it is to make a turn even if another intersection exists between a vehicle position and the intersection of interest. A controller determines whether or not another intersection exists between the vehicle position and the next guidance intersection (an intersection at which the vehicle is to make a turn) when the vehicle reaches a predetermined distance from the guidance intersection. If another intersection is determined to exist, an intersection guidance map with an arrow indicative of the guidance route colored in a predetermined color is displayed on a display device. In one embodiment, if another intersection does not exist between the vehicle and the guidance intersection, the color of the arrow displayed is changed to a different color.
摘要翻译：一种车辆导航装置，其能够在车辆接近要进行转弯的交叉路口时，即使在车辆位置和利益交叉点之间存在另一交叉路口，也可以沿着引导路线可靠地引导车辆。当车辆从引导路口到达预定距离时，控制器确定在车辆位置与下一个引导路口（车辆将要转弯的交点）之间是否存在另一个交叉路口。如果确定存在另一个交叉点，则在显示装置上显示具有指示以预定颜色着色的引导路线的箭头的交叉引导图。在一个实施例中，如果在车辆和引导路口之间不存在另一个交叉路口，则显示的箭头的颜色被改变为不同的颜色。

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