公开(公告)号：US20080319497A1

公开(公告)日：2008-12-25

申请号：US11767636

申请日：2007-06-25

申请人： Paul J. Griffith ,  Jordi Parramon ,  Goran N. Marnfeldt ,  Daniel Aghassian ,  Kiran Nimmagadda ,  Emanuel Feldman ,  Jess W. Shi

发明人： Paul J. Griffith ,  Jordi Parramon ,  Goran N. Marnfeldt ,  Daniel Aghassian ,  Kiran Nimmagadda ,  Emanuel Feldman ,  Jess W. Shi

IPC分类号： A61N1/08

CPC分类号： A61N1/36125 ,  A61N1/025 ,  A61N1/0551 ,  A61N1/0553 ,  A61N1/36071

摘要： An improved architecture for an implantable medical device such as an implantable pulse generator (IPG) is disclosed. In one embodiment, the various functional blocks for the IPG are incorporated into a signal integrated circuit (IC). Each of the functional blocks communicate with each other, and with other off-chip devices if necessary, via a centralized bus governed by a communication protocol. To communicate with the bus and to adhere to the protocol, each circuit block includes bus interface circuitry adherent with that protocol. Because each block complies with the protocol, any given block can easily be modified or upgraded without affecting the design of the other blocks, facilitating debugging and upgrading of the IPG circuitry. Moreover, because the centralized bus can be taken off the integrated circuit, extra circuitry can easily be added off chip to modify or add functionality to the IPG without the need for a major redesign of the main IPG IC.

摘要翻译： 公开了一种用于植入式医疗装置（例如植入式脉冲发生器（IPG））的改进的架构。 在一个实施例中，用于IPG的各种功能块被并入到信号集成电路（IC）中。 每个功能块通过由通信协议管理的集中式总线彼此通信，并且如果需要，与其他片外设备通信。 为了与总线进行通信并遵守协议，每个电路块包括与该协议相关的总线接口电路。 由于每个块符合协议，任何给定的块都可以轻松修改或升级，而不影响其他块的设计，便于IPG电路的调试和升级。 此外，由于集中式总线可以从集成电路中取出，所以额外的电路可以轻松地从芯片上添加到IPG中，以便对IPG进行主要的重新设计。

公开(公告)号：US09795793B2

公开(公告)日：2017-10-24

申请号：US13253552

申请日：2011-10-05

申请人： Jordi Parramon ,  Emanuel Feldman ,  Paul J. Griffith ,  Jess W. Shi

发明人： Jordi Parramon ,  Emanuel Feldman ,  Paul J. Griffith ,  Jess W. Shi

IPC分类号： A61N1/372 ,  A61N1/02

CPC分类号： A61N1/372 ,  A61N1/025 ,  A61N1/36125

摘要： Architectures for an implantable neurostimulator system having a plurality of electrode-driver integrated circuits (ICs) in provided. Electrodes from either or both ICs can be chosen to provide stimulation, and one of the IC acts as the master while the other acts as the slave. A parallel bus operating in accordance with a communication protocol couples the ICs, and certain functional blocks not needed in the slave are disabled. Stimulation parameters are loaded via the bus into each IC, and a stimulation enable command is issued on the bus to ensure simultaneous stimulation from the electrodes on both ICs. Clocking strategies are also disclosed to allow clocking of the master and slave ICs to be independently controlled, and to ensure that relevant internal and bus clocks used in the system are synchronized.

公开(公告)号：US08649858B2

公开(公告)日：2014-02-11

申请号：US11767636

申请日：2007-06-25

申请人： Paul J. Griffith ,  Jordi Parramon ,  Goran N. Marnfeldt ,  Daniel Aghassian ,  Kiran Nimmagadda ,  Emanuel Feldman ,  Jess W. Shi

发明人： Paul J. Griffith ,  Jordi Parramon ,  Goran N. Marnfeldt ,  Daniel Aghassian ,  Kiran Nimmagadda ,  Emanuel Feldman ,  Jess W. Shi

IPC分类号： A61N1/36 ,  A61N1/08

CPC分类号： A61N1/36125 ,  A61N1/025 ,  A61N1/0551 ,  A61N1/0553 ,  A61N1/36071

摘要： An improved architecture for an implantable medical device such as an implantable pulse generator (IPG) is disclosed. In one embodiment, the various functional blocks for the IPG are incorporated into a signal integrated circuit (IC). Each of the functional blocks communicate with each other, and with other off-chip devices if necessary, via a centralized bus governed by a communication protocol. To communicate with the bus and to adhere to the protocol, each circuit block includes bus interface circuitry adherent with that protocol. Because each block complies with the protocol, any given block can easily be modified or upgraded without affecting the design of the other blocks, facilitating debugging and upgrading of the IPG circuitry. Moreover, because the centralized bus can be taken off the integrated circuit, extra circuitry can easily be added off chip to modify or add functionality to the IPG without the need for a major redesign of the main IPG IC.

摘要翻译： 公开了一种用于植入式医疗装置（例如植入式脉冲发生器（IPG））的改进的架构。 在一个实施例中，用于IPG的各种功能块被并入到信号集成电路（IC）中。 每个功能块通过由通信协议管理的集中式总线彼此通信，并且如果需要，与其他片外设备通信。 为了与总线进行通信并遵守协议，每个电路块包括与该协议相关的总线接口电路。 由于每个块符合协议，任何给定的块都可以轻松修改或升级，而不影响其他块的设计，便于IPG电路的调试和升级。 此外，由于集中式总线可以从集成电路中取出，所以额外的电路可以轻松地从芯片上添加到IPG中，以便对IPG进行主要的重新设计。

公开(公告)号：US20100286749A1

公开(公告)日：2010-11-11

申请号：US12838260

申请日：2010-07-16

申请人： Jordi Parramon ,  David K.L. Peterson ,  Paul J. Griffith

发明人： Jordi Parramon ,  David K.L. Peterson ,  Paul J. Griffith

IPC分类号： A61N1/36

CPC分类号： A61N1/36125 ,  A61N1/0531 ,  A61N1/0534 ,  A61N1/0541 ,  A61N1/0543 ,  A61N1/0551 ,  A61N1/36071

摘要： Disclosed herein is a current generation architecture for an implantable stimulator device such as an Implantable Pulse Generator (IPG). Current source and sink circuitry are both divided into coarse and fine portions, which respectively can provide a coarse and fine current resolution to a specified electrode on the IPG. The coarse portion is distributed across all of the electrodes and so can source or sink current to any of the electrodes. The coarse portion is divided into a plurality of stages, each of which is capable via an associated switch bank of sourcing or sinking a coarse amount of current to or from any one of the electrodes on the device. The fine portion of the current generation circuit preferably includes source and sink circuitry dedicated to each of the electrode on the device, which can comprise digital-to-analog current converters (DACs). The DACs also receives the above-noted reference current, which is amplified by the DACs in fine increments by appropriate selection of fine current control signals. When the coarse and fine current control circuitry are used in tandem, ample current with a fine current resolution can be achieved at any electrode and in a space- and power-efficient manner.

摘要翻译： 本文公开了用于植入式脉冲发生器（IPG）的植入式刺激器装置的当前一代架构。 电流源和接收电路都分为粗细部分，分别可以为IPG上的指定电极提供粗细和精细的电流分辨率。 粗糙部分分布在所有电极上，因此可以将电流吸收或吸收到任何电极。 粗略部分被分成多个级，每个级能够经由相关联的开关组，该器件对设备上的任何一个电极进行粗电流的吸收或吸收。 电流产生电路的优良部分优选地包括专用于器件上每个电极的源极和漏极电路，其可以包括数模转换器（DAC）。 DAC还接收上述参考电流，其通过适当选择精细电流控制信号以细微增量由DAC放大。 当粗调和精细电流控制电路串联使用时，可以在任何电极上以空间和功率有效的方式实现具有精细电流分辨率的充足电流。

公开(公告)号：US4815682A

公开(公告)日：1989-03-28

申请号：US75818

申请日：1987-07-20

申请人： Fritz K. Feldmann ,  Paul J. Griffith ,  Craig L. Christenson

发明人： Fritz K. Feldmann ,  Paul J. Griffith ,  Craig L. Christenson

IPC分类号： F42B10/06 ,  F42B14/06 ,  F42B13/16

CPC分类号： F42B10/06 ,  F42B14/061 ,  F42B14/067 ,  Y10S102/703

摘要： The invention concerns a fin-stabilized projectile for employment from a rifled barrel and is particularly suitable for automatic cannons having calibers from 12.7 to 70 millimeters. The full rate of spin commensurate with the rifling twist of a specific barrel and the muzzle velocity is imparted to the projectile during launch using a rotating band which is fixed and an integral component of the discarding sabot. Subsequent to exit from the muzzle of the gun the rate of spin of the projectile is decelerated rapidly by aerodynamic damping to avoid potential adverse effects due to Magnus moments. The aerodynamic design of the fins is such that the projectile spin reaches a steady state rate of spin which is at least 50 percent larger than the nutation frequency of the projectile. By means of this spin tuning resonance instability and roll lock-in are avoided over the operational range of the projectile. Launching at full rate of spin also results in large centrifugal forces acting on the components of the sabot which provides for instantaneous and precise sabot separation upon projectile exit from the muzzle. This combined with the highly repeatable and reliable tuning of the projectile spin rate permits excellent projectile accuracy and dispersion characteristics. The invention also includes a discarding sabot design incorporating an integral, fixed rotating band. The design involves the in-place injection molding of the sabot body including a seal with obturator onto the fin-stabilized projectile. The absence of slipping rotating band provides for a rugged sabot configuration which is particularly important for ammunition employed from automatic cannons.

摘要翻译： 本发明涉及一种用于从膛线枪使用的翅片稳定的射弹，并且特别适用于具有12.7至70毫米的口径的自动炮。 与特定桶的膛线扭转相匹配的全速旋转速度和枪口速度在发射期间使用固定的旋转带和丢弃膛的整体部件施加到射弹。 从枪口出来后，弹丸的旋转速度通过气动阻尼来减速，以避免由于Magnus瞬间引起的潜在的不利影响。 翅片的空气动力学设计使得射弹自旋达到稳定的旋转速率，其比射弹的章动频率至少大50％。 通过这种旋转调谐共振不稳定性和滚动锁定在射弹的操作范围内被避免。 以全速旋转发动也会导致大的离心力作用在炮弹的部件上，从而提供弹丸从枪口射出时的瞬时和精确的分离。 这与抛射体旋转速率的高度可重复和可靠的调谐相结合，可以获得出色的抛射精度和色散特性。 本发明还包括一个包含整体固定旋转带的废弃破坏设计。 该设计涉及膛体的就地注射成型，包括带有填塞器的密封件到翅片稳定的抛射体上。 没有滑动的旋转带提供了一种坚固的防盗配置，这对于自动炮使用的弹药来说尤为重要。

公开(公告)号：US4255670A

公开(公告)日：1981-03-10

申请号：US5928

申请日：1979-01-24

申请人： Paul J. Griffith

发明人： Paul J. Griffith

IPC分类号： H03K19/0175 ,  H03K19/082 ,  H03K19/088 ,  H03K19/013 ,  H03K19/084

CPC分类号： H03K19/088 ,  H03K19/0826

摘要： A TTL transistor logic tristate output device particularly suitable for common bus applications including transistor and diode means for feedback of a portion of current from any output load and from stray capacitances to drive the pulldown element to greater conduction and accelerate sinking of current from the output to ground during transition at the output from high to low potential, said transistor means also arranged to block paths from the output to ground through the enable gate when the output is in the high impedance third state. Means for blocking current flow from the output through the device to high potential is also described.

摘要翻译： TTL晶体管逻辑三态输出设备，特别适用于公共总线应用，包括晶体管和二极管装置，用于从任何输出负载和杂散电容反馈一部分电流，以驱动下拉元件进行更大的导通，并加速电流从输出到 所述晶体管装置还被布置成当输出处于高阻抗第三状态时，通过使能栅极阻止从输出到地的路径。 还描述了阻止电流从器件的输出流向高电位的装置。

公开(公告)号：US08706238B2

公开(公告)日：2014-04-22

申请号：US12838260

申请日：2010-07-16

申请人： Jordi Parramon ,  David K. L. Peterson ,  Paul J. Griffith

发明人： Jordi Parramon ,  David K. L. Peterson ,  Paul J. Griffith

IPC分类号： A61N1/02

CPC分类号： A61N1/36125 ,  A61N1/0531 ,  A61N1/0534 ,  A61N1/0541 ,  A61N1/0543 ,  A61N1/0551 ,  A61N1/36071

摘要： Disclosed herein is a current generation architecture for an implantable stimulator device such as an Implantable Pulse Generator (IPG). Current source and sink circuitry are both divided into coarse and fine portions, which respectively can provide a coarse and fine current resolution to a specified electrode on the IPG. The coarse portion is distributed across all of the electrodes and so can source or sink current to any of the electrodes. The coarse portion is divided into a plurality of stages, each of which is capable via an associated switch bank of sourcing or sinking a coarse amount of current to or from any one of the electrodes on the device. The fine portion of the current generation circuit preferably includes source and sink circuitry dedicated to each of the electrode on the device, which can comprise digital-to-analog current converters (DACs). The DACs also receives the above-noted reference current, which is amplified by the DACs in fine increments by appropriate selection of fine current control signals. When the coarse and fine current control circuitry are used in tandem, ample current with a fine current resolution can be achieved at any electrode and in a space- and power-efficient manner.

摘要翻译： 本文公开了用于植入式脉冲发生器（IPG）的植入式刺激器装置的当前一代架构。 电流源和接收电路都分为粗细部分，分别可以为IPG上的指定电极提供粗细和精细的电流分辨率。 粗糙部分分布在所有电极上，因此可以将电流吸收或吸收到任何电极。 粗略部分被分成多个级，每个级能够经由相关联的开关组，该器件对设备上的任何一个电极进行粗电流的吸收或吸收。 电流产生电路的优良部分优选地包括专用于器件上每个电极的源极和漏极电路，其可以包括数模转换器（DAC）。 DAC还接收上述参考电流，其通过适当选择精细电流控制信号以细微增量由DAC放大。 当粗调和精细电流控制电路串联使用时，可以在任何电极上以空间和功率有效的方式实现具有精细电流分辨率的充足电流。

公开(公告)号：US20120095529A1

公开(公告)日：2012-04-19

申请号：US13253552

申请日：2011-10-05

申请人： Jordi Parramon ,  Emanuel Feldman ,  Paul J. Griffith ,  Jess W. Shi

发明人： Jordi Parramon ,  Emanuel Feldman ,  Paul J. Griffith ,  Jess W. Shi

IPC分类号： A61N1/372 ,  A61N1/378

CPC分类号： A61N1/372 ,  A61N1/025 ,  A61N1/36125

摘要： Architectures for an implantable neurostimulator system having a plurality of electrode-driver integrated circuits (ICs) in provided. Electrodes from either or both ICs can be chosen to provide stimulation, and one of the IC acts as the master while the other acts as the slave. A parallel bus operating in accordance with a communication protocol couples the ICs, and certain functional blocks not needed in the slave are disabled. Stimulation parameters are loaded via the bus into each IC, and a stimulation enable command is issued on the bus to ensure simultaneous stimulation from the electrodes on both ICs. Clocking strategies are also disclosed to allow clocking of the master and slave ICs to be independently controlled, and to ensure that relevant internal and bus clocks used in the system are synchronized.

摘要翻译： 具有提供的多个电极驱动器集成电路（IC）的可植入神经刺激器系统的结构。 可以选择来自任一个或两个IC的电极以提供刺激，并且IC中的一个用作主器件，而另一个用作从器件。 根据通信协议操作的并行总线耦合IC，并且禁用从机中不需要的某些功能块。 刺激参数通过总线加载到每个IC中，并且在总线上发出刺激使能命令，以确保同时从两个IC上的电极刺激。 还公开了时钟策略，以允许主控和从属IC的时钟被独立控制，并确保系统中使用的相关内部和总线时钟同步。

公开(公告)号：US4901646A

公开(公告)日：1990-02-20

申请号：US328859

申请日：1989-03-27

申请人： Fritz K. Feldmann ,  Paul J. Griffith ,  Craig L. Christenson

发明人： Fritz K. Feldmann ,  Paul J. Griffith ,  Craig L. Christenson

IPC分类号： F42B10/06 ,  F42B14/06

CPC分类号： F42B10/06 ,  F42B14/061 ,  F42B14/067

摘要： The invention concerns a fin-stabilized discarding sabot projectile for employment from a rifled barrel and is particularly suitable for automatic cannons having calibers from 12.7 to 70 millimeters. The full rate of spin commensurate with the rifling twist of a specific barrel and the muzzle velocity is imparted to the projectile during launch using a rotating band which is fixed and an integral component of the discarding sabot. The discarding sabot design involves the in-place injection molding of the sabot body, including a seal with obturator, onto the fin-stabilized projectile. The absence of slipping rotating band provides for a rugged sabot configuration which is particularly important for ammunition employed from automatic cannons. Launching at full rate of spin results in large centrifugal forces acting on the components of the sabot which provides for instantaneous and precise sabot separation upon projectile exit from the muzzle. This combined with the highly repeatable and reliable tuning of the projectile spin rate permits excellent projectile accuracy and dispersion characteristics.

摘要翻译： 本发明涉及一种用于从膛筒使用的翅片稳定的废弃抛射体，并且特别适用于具有12.7至70毫米的口径的自动炮。 与特定桶的膛线扭转相匹配的全速旋转速度和枪口速度在发射期间使用固定的旋转带和丢弃膛的整体部件施加到射弹。 废弃设计包括将炮台本体的就地注射成型，包括带有填塞物的密封件安装在翅片稳定的抛射体上。 没有滑动的旋转带提供了一种坚固的防盗配置，这对于自动炮使用的弹药来说尤为重要。 以完全旋转速度发射会产生大的离心力作用在膛体的部件上，从而提供弹丸从枪口射出时瞬间和精确的分离。 这与抛射体旋转速率的高度可重复和可靠的调谐相结合，可以获得出色的抛射精度和色散特性。

公开(公告)号：US5413049A

公开(公告)日：1995-05-09

申请号：US91226

申请日：1993-07-13

申请人： Fritz K. Feldmann ,  Craig Christenson ,  Paul J. Griffith

发明人： Fritz K. Feldmann ,  Craig Christenson ,  Paul J. Griffith

IPC分类号： F42B12/06 ,  F42B14/06

CPC分类号： F42B14/061 ,  F42B12/06 ,  F42B14/062 ,  Y10S102/703

摘要： The terminal effectiveness of fin stabilized, subcaliber armor piercing projectiles depends primarily on the impact velocity at the target. The aerodynamic drag and related velocity decay experienced over the trajectory from the gun to target is reduced by shortening the length of the acceleration transfer interface between subcaliber projectile and discarding sabot. This applies for multiple annular grooves and helical grooves. Special groove configurations to reduce the pressure drag and related boundary layer shock wave interaction are disclosed. The reduction in length of the acceleration transmitting interface permits its location to a position aft of the point of boundary layer transition from laminar to turbulent flow and therewith to take advantage of the low frictional coefficient of the laminar boundary layer over a large portion of the subcaliber projectile. The resulting reduction in aerodynamic drag is particularly effective for mid caliber projectiles.

摘要翻译： 翅片稳定的亚型铠甲穿刺弹丸的终端效能主要取决于目标的冲击速度。 通过缩短子弹丸与废弃物之间的加速度传递界面的长度，减少了从枪到目标轨迹上经历的气动阻力和相关的速度衰减。 这适用于多个环形槽和螺旋槽。 公开了用于减小压力阻力和相关边界层冲击波相互作用的特殊槽结构。 加速度传递接口的长度的减小允许其位置在边界层从层流到湍流之间的过渡点的后面的位置，并且利用层流边界层的低摩擦系数在大部分亚体积 射弹 空气动力学阻力的减少对于中等口径射弹特别有效。