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1. 发明授权

US09531156B2 Endoscopic light source 有权
标题翻译：内窥镜光源
公开(公告)号：US09531156B2
公开(公告)日：2016-12-27
申请号：US12487591
申请日：2009-06-18
申请人： David Hoffman , Alexandr Ikriannikov
发明人： David Hoffman , Alexandr Ikriannikov
IPC分类号： H01S5/042 , H01S5/062 , A61B1/06 , A61B1/07 , H01S5/068 , H01S5/00 , H01S5/40
CPC分类号： H01S5/06213 , A61B1/063 , A61B1/0661 , A61B1/07 , H01S5/0014 , H01S5/0427 , H01S5/0428 , H01S5/06216 , H01S5/06808 , H01S5/4025 , H01S5/4087
摘要： A light source assembly includes multiple light emitters having output that are focused and mixed onto a optical fiber leading to an endoscope or other device. The emitters can be LEDs or solid state lasers that emit different colors. A driver circuit controls the relative output intensities of the light emitters so as to produce a desired light spectrum. A driver circuit includes a buck topology connected to a controller that provides current mode control. Pulse width modulation of the buck current is provided by a semiconductor switch across a solid state laser. A second order filter, formed by the an external inductor and the output capacitance of the buck topology, minimizes AC current ripple to the laser.
摘要翻译：光源组件包括具有聚焦和混合到通向内窥镜或其它装置的光纤上的输出的多个发光体。发射器可以是发射不同颜色的LED或固态激光器。驱动器电路控制发光体的相对输出强度，以产生所需的光谱。驱动器电路包括连接到提供电流模式控制的控制器的降压拓扑。降压电流的脉冲宽度调制由跨越固态激光器的半导体开关提供。由外部电感器形成的二阶滤波器和降压拓扑的输出电容可最大限度地减少激光器的交流电流纹波。

2. 发明授权

US08115366B2 System and method of driving ultrasonic transducers 有权
标题翻译：驱动超声波换能器的系统和方法
公开(公告)号：US08115366B2
公开(公告)日：2012-02-14
申请号：US12605311
申请日：2009-10-23
申请人： David Hoffman , David Brubaker , Alexandr Ikriannikov
发明人： David Hoffman , David Brubaker , Alexandr Ikriannikov
IPC分类号： H01L41/08
CPC分类号： B06B1/0253 , B06B2201/76
摘要： A transducer is optimally driven at or near its resonant frequency by a driver system that adapts to variations and/or changes to the resonant frequency of the transducer due to variations in piezo materials, manufacturing, assembly, component tolerances, and/or operational conditions. The system may include an output controller, a phase track controller, a frequency generator, a drive, circuitry to determine a phase angle between the transducer voltage and transducer current, and circuitry to obtain transducer admittance from the transducer voltage and transducer current.
摘要翻译：由于压电材料，制造，组件，部件公差和/或操作条件的变化，传感器被适配于变换器的谐振频率的变化和/或变化的驱动器系统在其谐振频率处或其附近被最佳地驱动。该系统可以包括输出控制器，相位轨道控制器，频率发生器，驱动器，确定换能器电压和换能器电流之间的相位角的电路，以及从换能器电压和换能器电流获得换能器导纳的电路。

3. 发明申请

US20070167941A1 Electrosurgical system 有权
标题翻译：电外科系统
公开(公告)号：US20070167941A1
公开(公告)日：2007-07-19
申请号：US11334755
申请日：2006-01-18
申请人： Andrew Hamel , Michael Baycura , Chris Earley , David Hoffman , Alexandr Ikriannikov
发明人： Andrew Hamel , Michael Baycura , Chris Earley , David Hoffman , Alexandr Ikriannikov
IPC分类号： A61B18/18
CPC分类号： A61B18/1402 , A61B18/14 , A61B2018/00178 , A61B2018/00702 , A61B2018/00726 , A61B2018/00827 , A61B2018/00875 , A61B2018/00988
摘要： An electrosurgical system comprising, among other things, a control console to which detachably connects one or more electrosurgical probes capable of coagulating and ablating tissue. The control console generates a selectively variable power signal having a duty cycle that is dynamically modulated so as to maintain an average power level of a probe that is lower than a predefined maximum power level. The system can also incorporate both an impedance monitoring system and a current monitoring system as means to detect potentially dangerous situations, as well as a monitoring system for detecting impedance at relatively low power levels upon first activation of the probe. The probe can also incorporate non-volatile memory for storing probe-specific operating parameter data, probe usage data, data restricting probe use, error codes, and control console updates.
摘要翻译：一种电外科系统，其特征在于，包括控制台，其可拆卸地连接能够凝结和消融组织的一个或多个电外科探针。控制台产生具有动态调制的占空比的选择性可变功率信号，以保持探针的平均功率水平低于预定的最大功率水平。该系统还可以并入阻抗监视系统和电流监视系统，作为检测潜在危险情况的手段，以及用于在首次启动探针时检测相对较低功率水平下的阻抗的监视系统。探头还可以包含非易失性存储器，用于存储探针特定的操作参数数据，探头使用数据，限制探针使用的数据，错误代码和控制台更新。

4. 发明授权

US09300113B2 Apparatus and method for driving multiple lasers 有权
标题翻译：用于驱动多个激光器的装置和方法
公开(公告)号：US09300113B2
公开(公告)日：2016-03-29
申请号：US13344370
申请日：2012-01-05
申请人： David Hoffman , Alexandr Ikriannikov
发明人： David Hoffman , Alexandr Ikriannikov
IPC分类号： H01S3/00 , H01S5/042 , H01S5/40
CPC分类号： H01S5/0428 , H01S5/4018
摘要： A laser device includes a plurality of lasers that includes a first laser and a second laser. The laser device further includes a drive circuit configured to apply a pulsed current to the first laser at a first phase. The drive circuit is further configured to apply the pulsed current to the second laser at a second phase. The first phase and the second phase are different. A total voltage provided to the plurality of lasers during a period between the first and second phases is substantially smaller than a sum of individual voltages provided to the plurality of lasers, respectively, during a pulse period of the pulsed current.
摘要翻译：激光装置包括多个激光器，其包括第一激光器和第二激光器。激光装置还包括驱动电路，其配置为在第一阶段向第一激光器施加脉冲电流。驱动电路还被配置为在第二阶段将脉冲电流施加到第二激光器。第一阶段和第二阶段是不同的。在脉冲电流的脉冲周期期间，在第一和第二相之间的周期期间提供给多个激光器的总电压分别比分别提供给多个激光器的单独电压的总和小得多。

5. 发明申请

US20120126888A1 Differential Output Inductor for Class D Amplifier 有权
标题翻译： D类放大器的差分输出电感
公开(公告)号：US20120126888A1
公开(公告)日：2012-05-24
申请号：US13344392
申请日：2012-01-05
申请人： Alexandr Ikriannikov , David Hoffman , Noah A. Wilson
发明人： Alexandr Ikriannikov , David Hoffman , Noah A. Wilson
IPC分类号： H03F3/45 , H03H7/01
CPC分类号： H03F3/185 , B06B1/0261 , H03F3/217 , H03F2200/03 , H03H7/0115
摘要： A circuit includes a first input terminal for receiving a first pulsed voltage and a second input terminal for receiving a second pulsed voltage. The circuit further includes a load and an LC filter. The LC filter includes a coupled inductor pair that includes a first winding and a second winding magnetically coupled to each other. The first winding is coupled between the first input terminal and the load, and the second winding is coupled between the second input terminal and the load. A frequency of a first current flowing through the first winding is increased by the second pulsed voltage applied to the second winding.
摘要翻译：电路包括用于接收第一脉冲电压的第一输入端和用于接收第二脉冲电压的第二输入端。电路还包括负载和LC滤波器。 LC滤波器包括耦合电感器对，其包括彼此磁耦合的第一绕组和第二绕组。第一绕组耦合在第一输入端和负载之间，第二绕组耦合在第二输入端和负载之间。通过施加到第二绕组的第二脉冲电压来增加流过第一绕组的第一电流的频率。

6. 发明申请

US20100228089A1 Endoscopic Light Source 有权
标题翻译：内窥镜光源
公开(公告)号：US20100228089A1
公开(公告)日：2010-09-09
申请号：US12487591
申请日：2009-06-18
申请人： David Hoffman , Alexandr Ikriannikov
发明人： David Hoffman , Alexandr Ikriannikov
IPC分类号： A61B1/07 , H01S3/00
CPC分类号： H01S5/06213 , A61B1/063 , A61B1/0661 , A61B1/07 , H01S5/0014 , H01S5/0427 , H01S5/0428 , H01S5/06216 , H01S5/06808 , H01S5/4025 , H01S5/4087
摘要： A light source assembly includes multiple light emitters having output that are focused and mixed onto a optical fiber leading to an endoscope or other device. The emitters can be LEDs or solid state lasers that emit different colors. A driver circuit controls the relative output intensities of the light emitters so as to produce a desired light spectrum. A driver circuit includes a buck topology connected to a controller that provides current mode control. Pulse width modulation of the buck current is provided by a semiconductor switch across a solid state laser. A second order filter, formed by the an external inductor and the output capacitance of the buck topology, minimizes AC current ripple to the laser.
摘要翻译：光源组件包括具有聚焦和混合到通向内窥镜或其它装置的光纤上的输出的多个发光体。发射器可以是发射不同颜色的LED或固态激光器。驱动器电路控制发光体的相对输出强度，以产生所需的光谱。驱动器电路包括连接到提供电流模式控制的控制器的降压拓扑。降压电流的脉冲宽度调制由跨越固态激光器的半导体开关提供。由外部电感器形成的二阶滤波器和降压拓扑的输出电容可最大限度地减少激光器的交流电流纹波。

7. 发明授权

US08669809B2 Differential output inductor for class D amplifier 有权
标题翻译： D类放大器的差分输出电感
公开(公告)号：US08669809B2
公开(公告)日：2014-03-11
申请号：US13344392
申请日：2012-01-05
申请人： Alexandr Ikriannikov , David Hoffman , Noah A. Wilson
发明人： Alexandr Ikriannikov , David Hoffman , Noah A. Wilson
IPC分类号： H03F3/38
CPC分类号： H03F3/185 , B06B1/0261 , H03F3/217 , H03F2200/03 , H03H7/0115
摘要： A circuit includes a first input terminal for receiving a first pulsed voltage and a second input terminal for receiving a second pulsed voltage. The circuit further includes a load and an LC filter. The LC filter includes a coupled inductor pair that includes a first winding and a second winding magnetically coupled to each other. The first winding is coupled between the first input terminal and the load, and the second winding is coupled between the second input terminal and the load. A frequency of a first current flowing through the first winding is increased by the second pulsed voltage applied to the second winding.
摘要翻译：电路包括用于接收第一脉冲电压的第一输入端和用于接收第二脉冲电压的第二输入端。电路还包括负载和LC滤波器。 LC滤波器包括耦合电感器对，其包括彼此磁耦合的第一绕组和第二绕组。第一绕组耦合在第一输入端和负载之间，第二绕组耦合在第二输入端和负载之间。通过施加到第二绕组的第二脉冲电压来增加流过第一绕组的第一电流的频率。

8. 发明申请

US20120189028A1 Apparatus and Method for Driving Multiple Lasers 有权
标题翻译：用于驱动多个激光器的装置和方法
公开(公告)号：US20120189028A1
公开(公告)日：2012-07-26
申请号：US13344370
申请日：2012-01-05
申请人： David Hoffman , Alexandr Ikriannikov
发明人： David Hoffman , Alexandr Ikriannikov
IPC分类号： H01S3/02
CPC分类号： H01S5/0428 , H01S5/4018
摘要： A laser device includes a plurality of lasers that includes a first laser and a second laser. The laser device further includes a drive circuit configured to apply a pulsed current to the first laser at a first phase. The drive circuit is further configured to apply the pulsed current to the second laser at a second phase. The first phase and the second phase are different. A total voltage provided to the plurality of lasers during a period between the first and second phases is substantially smaller than a sum of individual voltages provided to the plurality of lasers, respectively, during a pulse period of the pulsed current.
摘要翻译：激光装置包括多个激光器，其包括第一激光器和第二激光器。激光装置还包括驱动电路，其配置为在第一阶段向第一激光器施加脉冲电流。驱动电路还被配置为在第二阶段将脉冲电流施加到第二激光器。第一阶段和第二阶段是不同的。在脉冲电流的脉冲周期期间，在第一和第二相之间的周期期间提供给多个激光器的总电压分别比分别提供给多个激光器的单独电压的总和小得多。

9. 发明授权

US07887534B2 Electrosurgical system 有权
标题翻译：电外科系统
公开(公告)号：US07887534B2
公开(公告)日：2011-02-15
申请号：US11334755
申请日：2006-01-18
申请人： Andrew Hamel , Michael Baycura , Chris Earley , David Hoffman , Alexandr Ikriannikov
发明人： Andrew Hamel , Michael Baycura , Chris Earley , David Hoffman , Alexandr Ikriannikov
IPC分类号： A61B18/04
CPC分类号： A61B18/1402 , A61B18/14 , A61B2018/00178 , A61B2018/00702 , A61B2018/00726 , A61B2018/00827 , A61B2018/00875 , A61B2018/00988
摘要： An electrosurgical system comprising, among other things, a control console to which detachably connects one or more electrosurgical probes capable of coagulating and ablating tissue. The control console generates a selectively variable power signal having a duty cycle that is dynamically modulated so as to maintain an average power level of a probe that is lower than a predefined maximum power level. The system can also incorporate both an impedance monitoring system and a current monitoring system as means to detect potentially dangerous situations, as well as a monitoring system for detecting impedance at relatively low power levels upon first activation of the probe. The probe can also incorporate non-volatile memory for storing probe-specific operating parameter data, probe usage data, data restricting probe use, error codes, and control console updates.
摘要翻译：一种电外科系统，其特征在于，包括控制台，其可拆卸地连接能够凝结和消融组织的一个或多个电外科探针。控制台产生具有动态调制的占空比的选择性可变功率信号，以便保持探针的平均功率水平低于预定的最大功率水平。该系统还可以并入阻抗监视系统和电流监视系统，作为检测潜在危险情况的手段，以及用于在首次启动探针时检测相对较低功率水平下的阻抗的监视系统。探头还可以包含非易失性存储器，用于存储探针特定的操作参数数据，探头使用数据，限制探针使用的数据，错误代码和控制台更新。

10. 发明申请

US20140304860A1 Molecular Markers Associated with Soybean Tolerance to Low Iron Growth Conditions 审中-公开
公开(公告)号：US20140304860A1
公开(公告)日：2014-10-09
申请号：US14240895
申请日：2012-08-29
申请人： Vergel C. Concibido , Susannah G. Cooper , David Hoffman , Hongwu Jia , Thomas Jury , Bradley LaVallee , Roger L. Lussenden , Xianghai Ye
发明人： Vergel C. Concibido , Susannah G. Cooper , David Hoffman , Hongwu Jia , Thomas Jury , Bradley LaVallee , Roger L. Lussenden , Xianghai Ye
IPC分类号： C12Q1/68 , A01H5/10
CPC分类号： C12Q1/6895 , A01H1/04 , A01H5/10 , A01H6/542 , C07K14/415 , C12Q2600/156
摘要： The present invention provides methods and compositions for identifying soybean plants that are tolerant or have improved tolerance, or those that are susceptible to, iron deficient growth conditions. The methods use molecular markers to identify, select, and/or introgress genetic loci modulating phenotypic expression of an iron deficiency tolerance trait in soybean plant breeding. Methods are provided for screening germplasm entries for the performance and expression of this trait.

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