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1. 发明授权

US06498477B1 Mutual crosstalk elimination in medical systems using radiator coils and magnetic fields 有权
标题翻译：使用散热器线圈和磁场的医疗系统中的相互串扰消除
公开(公告)号：US06498477B1
公开(公告)日：2002-12-24
申请号：US09702974
申请日：2000-10-31
申请人： Assaf Govari , Shlomo Fried
发明人： Assaf Govari , Shlomo Fried
IPC分类号： G01B7004
CPC分类号： G01B7/004 , A61B5/06 , A61B5/062 , G01V3/08 , G01V3/104
摘要： Apparatus for generating magnetic fields includes a plurality of radiator coils. Driver circuitry drives the coils so as to generate magnetic fields at a plurality of driving frequencies. Each of the coils is driven by a respective current that comprises a basic current at a respective one of the driving frequencies and cancellation currents at one or more of the other driving frequencies, so that each of the radiator coils generates a field substantially only at the respective driving frequency.
摘要翻译：用于产生磁场的装置包括多个散热器线圈。驱动电路驱动线圈，以产生多个驱动频率的磁场。每个线圈由相应的电流驱动，该电流包括在一个或多个其它驱动频率下的驱动频率和消除电流中的相应一个的基本电流，使得每个散热器线圈基本上仅在各自的驾驶频率。

2. 发明授权

US06615155B2 Object tracking using a single sensor or a pair of sensors 有权
公开(公告)号：US06615155B2
公开(公告)日：2003-09-02
申请号：US09819676
申请日：2001-03-29
申请人： Pinhas Gilboa
发明人： Pinhas Gilboa
IPC分类号： G01B7004
CPC分类号： A61B5/06 , A61B5/062 , G01D5/2073 , G01D5/2086
摘要： A method and system for tracking a moving object. The object is provided with one or more single-component sensors of a vector field. Generators of the vector field also are provided. Parameters of equations that relate the generated fields, as measured by the sensors, to the position of the object, but not to the orientation of the object, are determined either empirically or theoretically. These equations are solved to determine the position of the object without having to determine the orientation of the object. The scope of the invention also includes a helical guide wire wherein are integrally included one or more single-component sensors of a quasistatic magnetic field.

3. 发明授权

US06351118B1 Multiplexed driver for a magnetic transmitter 有权
标题翻译：用于磁性变送器的多路复用驱动器
公开(公告)号：US06351118B1
公开(公告)日：2002-02-26
申请号：US09233390
申请日：1999-01-19
申请人： John F. Ackerman , Erik H. Lange
发明人： John F. Ackerman , Erik H. Lange
IPC分类号： G01B7004
CPC分类号： F41G3/225 , G01B7/004
摘要： Helmet trackers include transmitters to transmit information regarding the orientation and position of the helmet, receivers to receive the information, and processors to process the information to determine the position and orientation of the helmet. An apparatus, connected to the transmitter, is used to attain a faster response time for the transmitter to transmit. Such apparatus may include an amplifier, a plurality of capacitors connected to the amplifier, a plurality of transistors each connected to a respective capacitor, and a controller connected to each transistor to control when a transistor turns on. The capacitors can store charge while the transistors are “off,” and once the transistors are turned “on”, an instant charge will exist to supply energy to the transmitter.
摘要翻译：头盔跟踪器包括用于发送关于头盔的方向和位置，接收信息的接收器的信息的发射器，以及用于处理信息以确定头盔的位置和姿态的处理器。连接到发射机的装置用于获得更快的发射机响应时间。这种装置可以包括放大器，连接到放大器的多个电容器，各自连接到相应电容器的多个晶体管，以及连接到每个晶体管以控制晶体管何时导通的控制器。当晶体管“关闭”时，电容器可以存储电荷，一旦晶体管“接通”，将存在即时电荷以向发射器提供能量。

4. 发明授权

US06298566B1 Angular-displacement detecting device 失效
标题翻译：角位移检测装置
公开(公告)号：US06298566B1
公开(公告)日：2001-10-09
申请号：US09192237
申请日：1998-11-16
申请人： Michiko Endo , Shigemi Kurashima , Naoyuki Nagao , Takuya Uchiyama , Hiroshi Hasegawa
发明人： Michiko Endo , Shigemi Kurashima , Naoyuki Nagao , Takuya Uchiyama , Hiroshi Hasegawa
IPC分类号： G01B7004
CPC分类号： H01C10/32 , G01B7/004 , G01D5/165
摘要： A device includes a coordinate-detecting sheet and a rotating member having a contact part which circularly slides on the coordinate-detecting sheet. Coordinate data of coordinates of the contact part on the coordinate-detecting sheet is output from the coordinate-detecting sheet.
摘要翻译：装置包括坐标检测片和具有在坐标检测片上圆形滑动的接触部的旋转部件。从坐标检测用纸输出坐标检测用纸上的接触部的坐标的坐标数据。

5. 发明授权

US06177792B1 Mutual induction correction for radiator coils of an objects tracking system 有权
标题翻译：物体跟踪系统散热器线圈的相互感应校正
公开(公告)号：US06177792B1
公开(公告)日：2001-01-23
申请号：US09125544
申请日：1999-03-19
申请人： Assaf Govari , Daniel Osadchy , Maier Fenster
发明人： Assaf Govari , Daniel Osadchy , Maier Fenster
IPC分类号： G01B7004
CPC分类号： G01B7/004 , G01V3/08
摘要： Apparatus for generating magnetic fields, including a plurality of radiator coils (22, 24, 26) and driver circuitry (30, 32, 33) coupled thereto, which drives the coils so as to generate magnetic fields at a plurality of driving frequencies, wherein each of the plurality of radiator coils (22, 24, 26) generates a field substantially only at a single, respective driving frequency. Preferably circuitry is associated with at least one of the plurality of radiator coils (22, 24, 26) for substantially eliminating magnetic fields generated by the other coils.
摘要翻译：用于产生磁场的装置，包括耦合到其上的多个散热器线圈（22,24,26）和驱动电路（30,32,33），驱动线圈以便产生多个驱动频率的磁场，其中多个散热器线圈（22,24,26）中的每一个基本上仅以单个相应的驱动频率产生场。优选地，电路与多个辐射器线圈（22,24,26）中的至少一个相关联，用于基本上消除由其它线圈产生的磁场。

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