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1. 发明申请

US20120281807A1 Radiotherapy system 有权
标题翻译：放射治疗系统
公开(公告)号：US20120281807A1
公开(公告)日：2012-11-08
申请号：US13365837
申请日：2012-02-03
申请人： Gavin George Poludniowski , Michael David Ross Thomas
发明人： Gavin George Poludniowski , Michael David Ross Thomas
IPC分类号： A61B6/03
CPC分类号： A61N5/1049 , A61N5/1047 , A61N2005/1054 , A61N2005/1062
摘要： A radiotherapy system comprising a support for a patient undergoing radiotherapy treatment, a gantry rotatable about an axis, a source of radiation mounted on the gantry and producing a beam of radiation directed towards a target region of the patient, a collimator coupled to said radiation source, the collimator comprising a plurality of movable, beam-limiting elements, to collectively define a shaped aperture through which the radiation beam passes, a portal imager mounted on the gantry opposite the radiation source for detecting the radiation after it has passed through the patient and generating corresponding images, and associated circuitry for controlling at least the gantry, the source, the collimator, and the portal imager, collating detected data comprising a plurality of images acquired including images at a plurality of angles of rotation of said gantry and images at a plurality of collimator shapes; generating a three-dimensional image of the target region based thereon.
摘要翻译：一种放射治疗系统，包括用于经历放射治疗的患者的支撑件，可围绕轴线旋转的台架，安装在所述台架上的辐射源并产生朝向所述患者的目标区域的辐射束;准直器，其耦合到所述辐射源准直器包括多个可移动的光束限制元件，以共同限定辐射束通过的成形孔，安装在与辐射源相对的台架上的入口成像器，用于在穿过患者之后检测辐射，生成对应的图像，以及用于至少控制台架，源，准直仪和门户成像器的相关电路，对包括所获取的多个图像的检测数据进行整理，包括在所述台架的多个旋转角度的图像和多个准直器形状; 基于此，生成目标区域的三维图像。

2. 发明授权

US08238518B2 Radiotherapy system 有权
标题翻译：放射治疗系统
公开(公告)号：US08238518B2
公开(公告)日：2012-08-07
申请号：US12821672
申请日：2010-06-23
申请人： Gavin George Poludniowski , Michael David Ross Thomas
发明人： Gavin George Poludniowski , Michael David Ross Thomas
IPC分类号： A61N5/10 , A61B6/00
CPC分类号： A61N5/1049 , A61N5/1047 , A61N2005/1054 , A61N2005/1062
摘要： A radiotherapy system is disclosed, comprising a support for supporting a patient undergoing radiotherapy treatment, a gantry that is rotatable about an axis, a source of radiation mounted on the gantry and producing a beam of radiation directed towards a target region of the patient, a collimator coupled to said radiation source for collimating said radiation beam, the collimator comprising a plurality of beam-limiting elements, each movable to collectively define a shaped aperture through which the radiation beam passes, a portal imager mounted on the gantry opposite the radiation source for detecting the radiation after it has passed through the patient and generating corresponding images, and associated circuitry for controlling at least the gantry, the source, the collimator, and the portal imager, collating detected data comprising a plurality of images acquired from the imager including images at a plurality of angles of rotation of said gantry and images at a plurality of collimator shapes, and generating a three-dimensional image of the target region based thereon.
摘要翻译：公开了一种放射治疗系统，其包括用于支撑经历放射治疗治疗的患者的支撑件，可围绕轴线旋转的台架，安装在所述台架上的辐射源并产生朝向患者的目标区域的辐射束，准直器，其耦合到所述辐射源，用于准直所述辐射束，所述准直器包括多个光束限制元件，每个限定元件可移动以共同限定辐射束通过的成形孔，安装在与辐射源相对的台架上的入口成像器，在辐射通过患者并产生相应的图像之后检测辐射，以及相关联的电路，用于至少控制台架，源，准直器和门户成像器，对检测的数据进行整理，该检测数据包括从成像器获取的多个图像，包括图像在所述台架的多个旋转角度和在多个colli处的图像并根据其生成目标区域的三维图像。

3. 发明授权

US06275583B1 Circuits and methods for improved network interface circuit protection 失效
标题翻译：改善网络接口电路保护的电路和方法
公开(公告)号：US06275583B1
公开(公告)日：2001-08-14
申请号：US09047985
申请日：1998-03-25
申请人： Jeffrey Haskell Derby , David Ross Thomas
发明人： Jeffrey Haskell Derby , David Ross Thomas
IPC分类号： H04M322
CPC分类号： H04M3/22
摘要： A network interface circuit includes an off-hook/on-hook circuit, responsive to the communications network, that provides an off-hook voltage substantially equal to the communications network voltage in an off-hook state and that provides an on-hook voltage in an on-hook state. A voltage controlled current source provides a load current which is proportional to a communications network voltage provided by the communications network. A divider circuit, responsive to the off-hook/on-hook circuit, provides an input voltage and produces an over-voltage, wherein the input voltage is proportional to off-hook or on-hook voltage. A clamping circuit limits the input voltage to one of a first or second predetermined value based on the operating mode and generates a current limited voltage. A control circuit, responsive to the over-voltage and the current-limited voltage and the operating mode and responsive to the off-hook/on-hook circuit, sets the network interface circuit in the off-hook state or the on-hook state based on the input voltage, the current-limited voltage, and the operating mode. Related methods and apparatus are also discussed.
摘要翻译：网络接口电路包括响应于通信网络的摘机/挂机电路，其提供基本上等于摘机状态下的通信网络电压的摘机电压，并且提供挂机电压挂机状态。电压控制电流源提供与由通信网络提供的通信网络电压成比例的负载电流。响应于摘机/挂机电路的分频器电路提供输入电压并产生过电压，其中输入电压与摘机或挂机电压成比例。钳位电路基于操作模式将输入电压限制为第一或第二预定值之一，并产生电流限制电压。响应于过电压和限流电压和操作模式并且响应于摘机/挂机电路的控制电路将网络接口电路设置为摘机状态或挂机状态基于输入电压，限流电压和工作模式。还讨论了相关方法和装置。

4. 发明授权

US08705696B2 Radiotherapy system 有权
标题翻译：放射治疗系统
公开(公告)号：US08705696B2
公开(公告)日：2014-04-22
申请号：US13365837
申请日：2012-02-03
申请人： Gavin George Poludniowski , Michael David Ross Thomas
发明人： Gavin George Poludniowski , Michael David Ross Thomas
IPC分类号： A61B6/03
CPC分类号： A61N5/1049 , A61N5/1047 , A61N2005/1054 , A61N2005/1062
摘要： A radiotherapy system comprising a support for a patient undergoing radiotherapy treatment, a gantry rotatable about an axis, a source of radiation mounted on the gantry and producing a beam of radiation directed towards a target region of the patient, a collimator coupled to said radiation source, the collimator comprising a plurality of movable, beam-limiting elements, to collectively define a shaped aperture through which the radiation beam passes, a portal imager mounted on the gantry opposite the radiation source for detecting the radiation after it has passed through the patient and generating corresponding images, and associated circuitry for controlling at least the gantry, the source, the collimator, and the portal imager, collating detected data comprising a plurality of images acquired including images at a plurality of angles of rotation of said gantry and images at a plurality of collimator shapes; generating a three-dimensional image of the target region based thereon.
摘要翻译：一种放射治疗系统，包括用于经历放射治疗的患者的支撑件，可围绕轴线旋转的台架，安装在所述台架上的辐射源并产生朝向所述患者的目标区域的辐射束;准直器，其耦合到所述辐射源准直器包括多个可移动的光束限制元件，以共同限定辐射束通过的成形孔，安装在与辐射源相对的台架上的入口成像器，用于在穿过患者之后检测辐射，生成对应的图像，以及用于至少控制台架，源，准直仪和门户成像器的相关电路，对包括所获取的多个图像的检测数据进行整理，包括在所述台架的多个旋转角度的图像和多个准直器形状; 基于此，生成目标区域的三维图像。

5. 发明授权

US06198817B1 Communication interface having combined shaping of receive response and synthesized matching terminating impedances for different frequency bands and a design method therefor 失效
标题翻译：具有接收响应的组合整形和不同频带的合成匹配终止阻抗的通信接口及其设计方法
公开(公告)号：US06198817B1
公开(公告)日：2001-03-06
申请号：US09012311
申请日：1998-01-23
申请人： Jeffrey Haskell Derby , David Ross Thomas
发明人： Jeffrey Haskell Derby , David Ross Thomas
IPC分类号： H04M160
CPC分类号： H04M1/76
摘要： A communication interface and a design method therefor simultaneously shape a synthesized terminating impedance matching different frequency bands on different connecting communication circuits and a receive path response to prevent frequency roll-off. In some cases, for example based on specified network requirements in a particular country, the terminating impedance presented by the interface must have different frequency characteristics for received signals in different bands of frequencies. A transconductance amplifier and feedback loop provide the terminating impedance for signals received from the communication circuit and serve as a source impedance for signals transmitted by the interface to the telephone line. Signals with different frequencies will generally be received from the telephone line. These different characteristics are realized using different filter networks in the feedback loop. Each network provides a matching terminating impedance to the communication circuit according to the frequency band applied to the circuit. The network shapes the synthesized impedance based upon the relation Z=1/GmH where Z=the terminating impedance; Gm is the transconductance of the amplifier and H is the transfer function of the feedback network. For multiple frequencies on the telephone line, multiple networks are included in the feedback loop. Each network is designed to match the impedance requirements of a frequency band without affecting the terminating impedance and frequency band of the other frequency bands. A receive filter circuit is coupled to the feedback loop and in combination with the filter networks in the feedback loop prevent frequency roll-off of received frequencies.
摘要翻译：通信接口及其设计方法同时形成在不同连接通信电路上匹配不同频带的合成终端阻抗和接收路径响应以防止频率滚降。在某些情况下，例如，基于特定国家的特定网络要求，由接口呈现的终端阻抗对于不同频带中的接收信号必须具有不同的频率特性。跨导放大器和反馈环路为从通信电路接收的信号提供端接阻抗，并且用作由电话线路的接口发送的信号的源阻抗。通常从电话线路接收具有不同频率的信号。这些不同的特性是通过反馈回路中的不同滤波器网络实现的。每个网络根据施加到电路的频带向通信电路提供匹配的终止阻抗。网络根据关系Z = 1 / GmH形成合成阻抗，其中Z =终端阻抗; Gm是放大器的跨导，H是反馈网络的传递函数。对于电话线上的多个频率，反馈回路中包含多个网络。每个网络被设计为匹配频带的阻抗要求，而不影响其他频带的终端阻抗和频带。接收滤波器电路耦合到反馈回路，并且与反馈回路中的滤波器网络组合以防止接收频率的频率降低。

6. 发明授权

US06181792B2 Communication interface having synthesized matching impedances for different frequency bands and a design method therefor 失效
标题翻译：具有针对不同频带的合成匹配阻抗的通信接口及其设计方法
公开(公告)号：US06181792B2
公开(公告)日：2001-01-30
申请号：US09013363
申请日：1998-01-23
申请人： Jeffrey Haskell Derby , David Ross Thomas
发明人： Jeffrey Haskell Derby , David Ross Thomas
IPC分类号： H04M176
CPC分类号： H04M1/76
摘要： A communication interface and a design method therefor provide a synthesized terminating impedance matching different frequency bands on a communication circuit. In some cases, for example based on specified network requirements in a particular country, the terminating impedance presented by the interface must have different frequency characteristics for received signals in different bands of frequencies. A transconductance amplifier and feedback loop provide the terminating impedance for signals received from the communication circuit and serves as a source impedance for signals transmitted by the interface to the telephone line. Signals with different frequencies will generally be received from the telephone line. These different characteristics are realized using different filter networks in the feedback loop. Each network provides a matching terminating impedance to the communication circuit according to the frequency band applied to the circuit. The network shapes the synthesized impedance based upon the relation Z=1/GmH where Z=the terminating impedance; Gm is the transconductance of the amplifier and H is the transfer function of the feedback network. For multiple frequencies on the telephone line, multiple networks are included in the feedback loop. Each network is designed to match the impedance requirements of a frequency band without affecting the terminating impedance and frequency band of the other frequency bands.
摘要翻译：通信接口及其设计方法提供了在通信电路上匹配不同频带的合成终端阻抗。在某些情况下，例如，基于特定国家的特定网络要求，由接口呈现的终端阻抗对于不同频带中的接收信号必须具有不同的频率特性。跨导放大器和反馈环路为从通信电路接收的信号提供端接阻抗，并且用作由电话线路的接口发送的信号的源阻抗。通常从电话线路接收具有不同频率的信号。这些不同的特性是通过反馈回路中的不同滤波器网络实现的。每个网络根据施加到电路的频带向通信电路提供匹配的终止阻抗。网络根据关系Z = 1 / GmH形成合成阻抗，其中Z =终端阻抗; Gm是放大器的跨导，H是反馈网络的传递函数。对于电话线上的多个频率，反馈回路中包含多个网络。每个网络被设计为匹配频带的阻抗要求，而不影响其他频带的终端阻抗和频带。

7. 发明申请

US20110317895A1 Radiotherapy system 有权
标题翻译：放射治疗系统
公开(公告)号：US20110317895A1
公开(公告)日：2011-12-29
申请号：US12821672
申请日：2010-06-23
申请人： Gavin George Poludniowski , Michael David Ross Thomas
发明人： Gavin George Poludniowski , Michael David Ross Thomas
IPC分类号： G06K9/00 , A61B6/00
CPC分类号： A61N5/1049 , A61N5/1047 , A61N2005/1054 , A61N2005/1062
摘要： A radiotherapy system is disclosed, comprising a support for supporting a patient undergoing radiotherapy treatment, a gantry that is rotatable about an axis, a source of radiation mounted on the gantry and producing a beam of radiation directed towards a target region of the patient, a collimator coupled to said radiation source for collimating said radiation beam, the collimator comprising a plurality of beam-limiting elements, each movable to collectively define a shaped aperture through which the radiation beam passes, a portal imager mounted on the gantry opposite the radiation source for detecting the radiation after it has passed through the patient and generating corresponding images, and associated circuitry for controlling at least the gantry, the source, the collimator, and the portal imager, collating detected data comprising a plurality of images acquired from the imager including images at a plurality of angles of rotation of said gantry and images at a plurality of collimator shapes, and generating a three-dimensional image of the target region based thereon.
摘要翻译：公开了一种放射治疗系统，其包括用于支撑经历放射治疗治疗的患者的支撑件，可围绕轴线旋转的台架，安装在所述台架上的辐射源并产生朝向患者的目标区域的辐射束，准直器，其耦合到所述辐射源，用于准直所述辐射束，所述准直器包括多个光束限制元件，每个限定元件可移动以共同限定辐射束通过的成形孔，安装在与辐射源相对的台架上的入口成像器，在辐射通过患者并产生相应的图像之后检测辐射，以及相关联的电路，用于至少控制台架，源，准直器和门户成像器，对检测的数据进行整理，该检测数据包括从成像器获取的多个图像，包括图像在所述台架的多个旋转角度和在多个colli处的图像并根据其生成目标区域的三维图像。

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