公开(公告)号：US06212431B1

公开(公告)日：2001-04-03

申请号：US09376881

申请日：1999-08-18

申请人： Tae W. Hahn ,  Glen A. Griffith

发明人： Tae W. Hahn ,  Glen A. Griffith

IPC分类号： A61N1378

CPC分类号： A61N1/3787 ,  A61N1/36036

摘要： An external power transfer circuit (12) couples ac power having a fixed frequency into an implantable electrical circuit (14), e.g., an implantable tissue stimulator, while automatically maintaining optimum power transfer conditions. Optimum power transfer conditions exist when there is an impedance match between the external and implanted circuits. The external transfer circuit includes a directional coupler (42) and an impedance matching circuit (44). The directional coupler senses the forward power being transferred to the implant device, as well as the reverse power being reflected form the implant device (as a result of an impedance mismatch). The impedance matching circuit includes at least one variable element controlled by a control signal. The sensed reverse power is used as a feedback signal to automatically adjust the variable element in the impedance matching circuit, and hence the output impedance of the external power transfer circuit, so that it matches the input impedance of the implant device, despite variations that occur in the input impedance of the implant device due to variations in implant distance and implant load.

摘要翻译： 外部功率传输电路（12）将具有固定频率的交流电力耦合到例如可植入组织刺激器的可植入电路（14）中，同时自动保持最佳功率传输条件。 当外部和注入电路之间存在阻抗匹配时，存在最佳功率传输条件。 外部传送电路包括定向耦合器（42）和阻抗匹配电路（44）。 定向耦合器感测被传送到植入装置的正向功率，以及从植入装置反射的反向功率（由于阻抗失配）。 阻抗匹配电路包括由控制信号控制的至少一个可变元件。 感测到的反向功率用作反馈信号，以自动调整阻抗匹配电路中的可变元件，从而使外部功率传输电路的输出阻抗匹配，尽管发生了变化，但它与植入装置的输入阻抗相匹配 在植入装置的输入阻抗中，由于植入物距离和植入物负载的变化。

公开(公告)号：US06542777B1

公开(公告)日：2003-04-01

申请号：US09766290

申请日：2001-01-19

申请人： Glen A. Griffith ,  Janusz A. Kuzma ,  Tae W. Hahn

发明人： Glen A. Griffith ,  Janusz A. Kuzma ,  Tae W. Hahn

IPC分类号： A61N140

CPC分类号： A61N1/37229

摘要： A spiral shield for an implantable secondary coil confines the electrical field of the coil, and thus prevents capacitive coupling of the coil through surrounding dielectrics (such as human tissue.) Known implantable devices receive power inductively, through a secondary coil, from a primary coil in an external device. Efficient power reception requires that the coils be tuned to the same resonant frequency. Use of the spiral shield results in predictable electrical behavior of the secondary coil and permits the secondary coil to be accurately tuned to the same resonate frequency as the primary coil. To further improve performance, spacers made from SILBIONE®LSR 70 reside between turns of the coil to reduce turn to turn and turn to shield capacitances. Reducing the capacitances prevents excessive reduction of the self resonant frequency of the coil. The coil is imbedded in SILBIONE®LSR 70, allowing for a thin and flexible coil.

摘要翻译： 用于可植入次级线圈的螺旋屏蔽限制线圈的电场，从而防止线圈通过周围电介质（例如人体组织）的电容耦合。已知的可植入装置通过次级线圈感应地从初级线圈 在外部设备。 有效的功率接收要求将线圈调谐到相同的谐振频率。 螺旋屏蔽的使用导致次级线圈的可预测的电气行为，并允许将次级线圈精确地调谐到与初级线圈相同的谐振频率。 为了进一步提高性能，SILBIONE（R）LSR 70制成的间隔件位于线圈的转弯之间，以减少转向并转向屏蔽电容。 降低电容可以防止线圈的自谐振频率的过度降低。 线圈镶嵌在SILBIONE（R）LSR 70中，允许薄而柔性的线圈。

公开(公告)号：US5442441A

公开(公告)日：1995-08-15

申请号：US776929

申请日：1991-10-15

申请人： Bruce C. Grover ,  Tae W. Hahn

发明人： Bruce C. Grover ,  Tae W. Hahn

IPC分类号： G01C19/66 ,  G01C19/68 ,  H01S3/038 ,  H01S3/083 ,  H01S3/0975 ,  H01S3/05 ,  G01B9/02 ,  G01C19/64

CPC分类号： G01C19/661 ,  G01C19/667 ,  G01C19/68 ,  H01S3/038 ,  H01S3/083 ,  H01S3/0975

摘要： Apparatus for stabilizing the position of the exciting electric component of a radio frequency electromagnetic field within the excited plasma of a ring laser, using two adjacent quarterwave coils, and driving the coils from a radio frequency source to ensure that the adjacent open ends of the two coils have electric field components that produce a steep gradient of electric field within the gas plasma of the ring laser.

摘要翻译： 用于稳定环形激光器激发的等离子体内的射频电磁场的激发电子部件的位置的装置，使用两个相邻的四分之一波形线圈，并且从射频源驱动线圈以确保两个相邻的开放端 线圈具有在环形激光器的气体等离子体内产生陡峭电场梯度的电场分量。

公开(公告)号：US5305085A

公开(公告)日：1994-04-19

申请号：US253094

申请日：1988-09-22

申请人： Tae W. Hahn

发明人： Tae W. Hahn

IPC分类号： G01C19/66 ,  H01S3/083 ,  G01B9/02

CPC分类号： H01S3/083 ,  G01C19/667

摘要： A split gain multi-mode ring laser gyroscope is disclosed having a radio frequency excitation induction coil which also serves the magnetic mode suppression system, suppressing undesirable modes of the gain curve to achieve the split gain effect. The induction coil serves as an important common component of both the gain medium excitation and mode suppression systems. The induction coil is suitably configured to carry both AC and DC signals.

摘要翻译： 公开了一种分频增益多模式环形激光陀螺仪，其具有也用于磁模抑制系统的射频激励感应线圈，抑制增益曲线的不期望的模式以实现分裂增益效应。 感应线圈作为增益介质激励和模式抑制系统的重要共同部件。 感应线圈适合配置为承载交流和直流信号。

公开(公告)号：US20100292759A1

公开(公告)日：2010-11-18

申请号：US11089171

申请日：2005-03-24

申请人： Tae W. Hahn ,  Richard C. Ross

发明人： Tae W. Hahn ,  Richard C. Ross

IPC分类号： A61F11/04 ,  A61N1/375

CPC分类号： A61N1/375 ,  A61N1/0541 ,  A61N1/36036

摘要： Disclosed is a cochlear stimulation system and associated methods that utilizes a magnetic field sensor to determine the status of magnetically-coupled components. The cochlear stimulation system includes an implantable portion positionable beneath the skin of a patient and an external portion positionable outside the skin of the patient. The implantable portion includes a multi-electrode array having a plurality of electrodes configured to be placed in cochlear duct of a patient and an internal magnet. The external portion includes a speech processor configured to generate control signals in response to received sound signals and an external magnet. The external magnet and the internal magnet generate an attractive magnetic force that maintains the external portion in position relative to the internal portion against the scalp of the patient. The cochlear stimulation system further includes a magnetic field sensor configured to sense the value of a magnetic field generated by the external magnet and the internal magnet in order to monitor changes in the magnetic field.

摘要翻译： 公开了一种使用磁场传感器来确定磁耦合部件的状态的人工耳蜗刺激系统和相关方法。 耳蜗刺激系统包括可定位在患者皮肤下方的可植入部分和可定位在患者皮肤外部的外部部分。 可植入部分包括具有多个电极的多电极阵列，其被配置为放置在患者的耳蜗管内和内部磁体中。 外部部分包括被配置为响应于接收到的声音信号和外部磁体产生控制信号的语音处理器。 外部磁体和内部磁体产生吸引力的磁力，其将外部部分相对于内部部分保持在与患者头皮相对的位置上。 耳蜗刺激系统还包括磁场传感器，其被配置为感测由外部磁体和内部磁体产生的磁场的值，以便监视磁场的变化。

公开(公告)号：US5208653A

公开(公告)日：1993-05-04

申请号：US741291

申请日：1991-08-06

申请人： John G. Mark ,  Daniel A. Tazartes ,  Tae W. Hahn

发明人： John G. Mark ,  Daniel A. Tazartes ,  Tae W. Hahn

IPC分类号： G01C19/66 ,  H01S3/139

CPC分类号： H01S3/139 ,  G01C19/665

摘要： Disclosed herein is a Digitally Controlled Cavity Length Control System comprising, in a preferred embodiment, an adaptive servo-loop for cavity length, modulation depth and amplitude control, and of the multioscillator ring laser gyroscope; thereby, permitting the simultaneous control of these elements. The cavity length control of the multioscillator, by including a variable RF detector gain, allows the operation of the gyroscope in a slightly detuned fashion to minimize magnetic sensitivity. In this manner, the multioscillator gyroscope may be maintained at a stable operating point suitable for modeling.

摘要翻译： 本文公开了一种数字控制腔长度控制系统，在优选实施例中，包括用于腔长度，调制深度和幅度控制的自适应伺服回路以及多振荡器环形激光陀螺仪; 从而允许同时控制这些元件。 通过包括可变RF检测器增益，多谐振荡器的腔长度控制允许陀螺仪以稍微失谐的方式操作以最小化磁敏感度。 以这种方式，多谐振荡器陀螺仪可以保持在适于建模的稳定工作点。

公开(公告)号：US5189487A

公开(公告)日：1993-02-23

申请号：US796567

申请日：1991-11-21

申请人： John G. Mark ,  Daniel A. Tazartes ,  Tae W. Hahn

发明人： John G. Mark ,  Daniel A. Tazartes ,  Tae W. Hahn

IPC分类号： G01C19/66

CPC分类号： G01C19/667

摘要： A rotational sensing system for a Multioscillator ring laser gyroscope is disclosed herein that can operate with a simple upright symmetric optics mechanism, where the required signal separation is performed fully electronically, with the use of a local oscillator. The technique allows for rotational rate and direction detection, as well as cavity length control, with a minimum of cross-talk.

摘要翻译： 本文公开了一种用于多振荡器环形激光陀螺仪的旋转感测系统，其可以使用简单的直立对称光学机构来操作，其中使用本地振荡器完全电子地执行所需的信号分离。 该技术允许旋转速率和方向检测以及腔长度控制，具有最小的串扰。

公开(公告)号：US06745077B1

公开(公告)日：2004-06-01

申请号：US09975042

申请日：2001-10-09

申请人： Glen A. Griffith ,  Tae W. Hahn

发明人： Glen A. Griffith ,  Tae W. Hahn

IPC分类号： A61N108

CPC分类号： A61N1/08

摘要： A fixed frequency external power source having an external coil is inductively coupled with an implanted coil of an implanted medical device. The implant device has an electronic impedance transformer as part of its load circuit. Such electronic impedance transformer sets a proper voltage and current ratio (impedance) so that the coil set, i.e., the external coil and the implanted coil, are loaded with an optimal load. Such optimal loading, in turn, significantly minimizes any mismatch loss from the inductive link between the external coil and the implant coil, and allows wide ranges in the voltage and load resistance and coil separation, while at the same time maintaining an optimal load condition. The impedance transformer is especially applicable to fully implantable cochlear stimulation systems wherein, during one mode of operation, a relatively large power level must be transferred for charging the implanted power storage element, e.g., a rechargeable battery, but wherein another mode of operation, the implant is operated and powered from an external unit and a relatively small power level is transferred to the implant device. The ratio of these power levels may be large, e.g., about 30 to 1, and unless the coil set, i.e., the external coil and implanted coil, are altered between these different load conditions, a huge mismatch loss may occur, which mismatch greatly reduces the power transfer efficiency. The impedance transformer of the invention minimizes such a mismatch loss.

摘要翻译： 具有外部线圈的固定频率外部电源与注入的医疗装置的植入线圈感应耦合。 植入装置具有作为其负载电路的一部分的电子阻抗变压器。 这种电子阻抗变压器设置适当的电压和电流比（阻抗），使得线圈组，即外部线圈和植入线圈被加载有最佳负载。 这样的最佳负载又显着地使来自外部线圈和植入线圈之间的电感链路的任何失配损耗最小化，并允许电压和负载电阻以及线圈间隔的宽范围，同时保持最佳的负载状态。 阻抗变换器特别适用于完全可植入的耳蜗刺激系统，其中在一种操作模式中，必须传送相对较大的功率电平以对植入的电力存储元件（例如可再充电电池）进行充电，但是另一种操作模式 植入物由外部单元操作和供电，相对小的功率水平传递到植入装置。 这些功率电平的比例可能很大，例如大约30比1，除非线圈组，即外部线圈和注入的线圈在这些不同的负载条件之间被改变，否则可能发生巨大的失配损耗， 降低功率传输效率。 本发明的阻抗变换器使这种失配损失最小化。

公开(公告)号：US5751425A

公开(公告)日：1998-05-12

申请号：US777498

申请日：1996-12-30

申请人： Donald A. Frederick ,  John G. Mark ,  Daniel A. Tazartes ,  David B. Hall ,  Tae W. Hahn

发明人： Donald A. Frederick ,  John G. Mark ,  Daniel A. Tazartes ,  David B. Hall ,  Tae W. Hahn

IPC分类号： G01C19/66 ,  G01C19/64

CPC分类号： G01C19/66

摘要： A ring laser gyroscope having an alternating Faraday bias includes mode combining apparatus arranged to cause interference between the modes that propagate within the cavity. Signal separating apparatus separates a signal indicative of rotation of the frame from other components of the combined intensity signal. The signal separating apparatus produces two signals indicative of the light intensity in the interference pattern of the combined modes. These two signals have a 180.degree. phase difference in corresponding components that are dependent upon the geometric bias caused by the non-planar optical path to produce a rotation signal that is independent of the spatially uniform interference fringes caused by the geometric bias.

摘要翻译： 具有交替法拉第偏置的环形激光陀螺仪包括布置成在腔内传播的模式之间产生干涉的模式组合装置。 信号分离装置将表示帧的旋转的信号与组合强度信号的其他分量分离。 信号分离装置产生指示组合模式的干涉图案中的光强度的两个信号。 这两个信号在对应的分量中具有180°的相位差，其取决于由非平面光路引起的几何偏置，以产生独立于由几何偏差引起的空间均匀干涉条纹的旋转信号。

公开(公告)号：US5527036A

公开(公告)日：1996-06-18

申请号：US366888

申请日：1994-12-30

申请人： Thomas J. Hutchings ,  Tae W. Hahn

发明人： Thomas J. Hutchings ,  Tae W. Hahn

IPC分类号： A63B69/36

CPC分类号： A63B69/3614 ,  A63B2220/805

摘要： An electro-optic device is used to detect the position and speed of a golf club head as it passes in front of the device. This information triggers a short optical pulse of light to illuminate the club head, allowing a golfer to see the club head at a desired position as an after-image, and to read the displayed club head speed.

摘要翻译： 电光装置用于检测高尔夫球杆头在穿过装置前方的位置和速度。 该信息触发光的短脉冲以照亮球杆头，允许高尔夫球手将球杆头作为后置图像看到期望的位置，并且读取所显示的球杆头速度。