-
1.发明申请PULSE HEIGHT ANALYZER AND NUCLEAR MEDICINE DIAGNOSIS APPARATUS PROVIDED WITH THE SAME 有权脉搏高分析仪及其相应的核医学诊断仪器公开(公告)号：US20120184848A1
公开(公告)日：2012-07-19
申请号：US13499320
申请日：2009-10-01
CPC分类号： G01T1/1647 , A61B6/037 , A61B6/4258
摘要： With a pulse-height analyzer, a reference-pulse generator generates a reference pulse of a given pulse height for a given period of time when an analog radiation pulse inputted to a comparator is higher than an initial threshold. A capacitor and a resistor receive the reference pulse, and then increase an increment threshold for the given period of time from the initial threshold to the given pulse height. Then the increment threshold is set as a reference voltage of the comparator. A pulse time width of the analog radiation pulse is determined through measuring a period of time from timing where the analog radiation pulse exceeds the initial threshold to timing where the analog radiation pulse being attenuated falls below the increment threshold.
摘要翻译： 使用脉冲高度分析器，当输入到比较器的模拟辐射脉冲高于初始阈值时，参考脉冲发生器产生给定脉冲高度的给定脉冲达给定时间段。 电容器和电阻接收参考脉冲，然后增加从初始阈值到给定脉冲高度的给定时间段的增量阈值。 然后将增量阈值设置为比较器的参考电压。 通过测量从模拟辐射脉冲超过初始阈值的定时到正在衰减的模拟辐射脉冲降至低于增量阈值的定时的时间段来确定模拟辐射脉冲的脉冲时间宽度。
-
2.发明授权公开(公告)号：US08981307B2
公开(公告)日：2015-03-17
申请号：US13499320
申请日：2009-10-01
CPC分类号： G01T1/1647 , A61B6/037 , A61B6/4258
摘要： With a pulse-height analyzer, a reference-pulse generator generates a reference pulse of a given pulse height for a given period of time when an analog radiation pulse inputted to a comparator is higher than an initial threshold. A capacitor and a resistor receive the reference pulse, and then increase an increment threshold for the given period of time from the initial threshold to the given pulse height. Then the increment threshold is set as a reference voltage of the comparator. A pulse time width of the analog radiation pulse is determined through measuring a period of time from timing where the analog radiation pulse exceeds the initial threshold to timing where the analog radiation pulse being attenuated falls below the increment threshold.
摘要翻译： 使用脉冲高度分析器，当输入到比较器的模拟辐射脉冲高于初始阈值时，参考脉冲发生器产生给定脉冲高度的给定脉冲达给定时间段。 电容器和电阻接收参考脉冲，然后增加从初始阈值到给定脉冲高度的给定时间段的增量阈值。 然后将增量阈值设置为比较器的参考电压。 通过测量从模拟辐射脉冲超过初始阈值的定时到正在衰减的模拟辐射脉冲降至低于增量阈值的定时的时间段来确定模拟辐射脉冲的脉冲时间宽度。
-
公开(公告)号：US20100294944A1
公开(公告)日：2010-11-25
申请号：US12738678
申请日：2008-09-29
IPC分类号： G01T1/29
CPC分类号： G01T1/1647
摘要： A radiation detector of this invention includes a pulse width modulation circuit for binarizing an analog electrical pulse outputted from a detector cell with a predetermined threshold, and modulating it into a digital electrical pulse, and a data superposer for outputting an incident position pulse train by superposing incident position pulses and concerning the position of the detector cell on which the radiation has fallen, and the digital electrical pulse detected by the radiation. Thus, position information which has conventionally been added after output of digital electrical pulse can be added into the digital electrical pulse. Therefore, compared with the conventional technique of adding position information after digital electrical pulse and transmitting the position information, the position of the radiation incident on the detector cell can be detected in a short time.
摘要翻译： 本发明的放射线检测器包括用于将从检测器单元输出的模拟电脉冲二值化为预定阈值并将其调制为数字电脉冲的脉宽调制电路，以及用于通过叠加输出入射位置脉冲串的数据上载器 入射位置脉冲和关于辐射已经下降的检测器单元的位置以及由辐射检测的数字电脉冲。 因此，可以将数字电脉冲输出之后常规添加的位置信息加到数字电脉冲中。 因此，与在数字电脉冲之后添加位置信息并发送位置信息的常规技术相比，可以在短时间内检测入射到检测器单元上的辐射的位置。
-
公开(公告)号：US08269183B2
公开(公告)日：2012-09-18
申请号：US12738678
申请日：2008-09-29
CPC分类号： G01T1/1647
摘要： A radiation detector of this invention includes a pulse width modulation circuit for binarizing an analog electrical pulse outputted from a detector cell with a predetermined threshold, and modulating it into a digital electrical pulse, and a data superposer for outputting an incident position pulse train by superposing incident position pulses and concerning the position of the detector cell on which the radiation has fallen, and the digital electrical pulse detected by the radiation. Thus, position information which has conventionally been added after output of digital electrical pulse can be added into the digital electrical pulse. Therefore, compared with the conventional technique of adding position information after digital electrical pulse and transmitting the position information, the position of the radiation incident on the detector cell can be detected in a short time.
摘要翻译： 本发明的放射线检测器包括用于将从检测器单元输出的模拟电脉冲二值化为预定阈值并将其调制为数字电脉冲的脉宽调制电路，以及用于通过叠加输出入射位置脉冲串的数据上载器 入射位置脉冲和关于辐射已经下降的检测器单元的位置以及由辐射检测的数字电脉冲。 因此，可以将数字电脉冲输出之后常规添加的位置信息加到数字电脉冲中。 因此，与在数字电脉冲之后添加位置信息并发送位置信息的常规技术相比，可以在短时间内检测入射到检测器单元上的辐射的位置。
-
公开(公告)号：US20140239184A1
公开(公告)日：2014-08-28
申请号：US14346658
申请日：2011-09-22
申请人： Masayuki Nakazawa , Junichi Ohi , Tetsuo Furumiya
发明人： Masayuki Nakazawa , Junichi Ohi , Tetsuo Furumiya
CPC分类号： G01T1/164 , A61B6/037 , G01T1/2006 , G01T1/2985
摘要： The disclosure has one object to provide a radiation tomography apparatus of a low price that facilitates a design change of a detector ring to suppress costs of development. The radiation tomography apparatus according to the disclosure includes a plurality of modules configured to receive detected data from different radiation detectors. Then, the modules each send and receive the detected data to and from one another, thereby sharing the detected data and counting the number of coincidence events. That is, when manufacturing radiation tomography apparatus, merely wiring the coincidence modules achieves implementation of the coincidence unit. This allows manufacturing the radiation tomography apparatus without new development of a substrate for performing coincidence. Consequently, the radiation tomography apparatus of a low price can be provided with suppressed costs of the development.
摘要翻译： 本发明的一个目的是提供一种低价格的放射线断层摄影装置，其便于检测器环的设计改变以抑制显影成本。 根据本公开的放射线断层摄影装置包括被配置为从不同的辐射检测器接收检测到的数据的多个模块。 然后，模块各自发送并接收检测到的数据到彼此，从而共享检测到的数据并对重合事件的数量进行计数。 也就是说，当制造放射线断层摄影装置时，仅仅配合符合模块实现了重合单元的实现。 这允许制造放射线断层摄影装置，而不需要用于执行重合的基板的新开发。 因此，可以提供低价格的放射线断层摄影装置抑制开发成本。
-
公开(公告)号：US08330520B2
公开(公告)日：2012-12-11
申请号：US12996636
申请日：2008-06-09
申请人： Tetsuo Furumiya , Junichi Ohi
发明人： Tetsuo Furumiya , Junichi Ohi
IPC分类号： H03K5/08
CPC分类号： H03G11/002 , H03G11/02
摘要： The limiter circuit of this invention is a limiter circuit which, by switching action of a pair of transistors, allows passage of only signal voltage components of an input signal voltage included in ranges of an upper limit signal voltage and a lower limit signal voltage. With this construction, the pair of transistors carry out comparisons between the input signal voltage and threshold signal voltages and line switching at the same time. Therefore, there is no influence of propagation delay speed, and no switching noise occurs at times of line switching. Since diodes are not used, a high-speed limiter circuit can be manufactured.
摘要翻译： 本发明的限幅器电路是限制电路，其通过一对晶体管的开关动作，允许仅包含在上限信号电压和下限信号电压范围内的输入信号电压的信号电压分量。 利用这种结构，该对晶体管同时执行输入信号电压和阈值信号电压和线路切换之间的比较。 因此，不存在传播延迟速度的影响，在线路切换时不产生开关噪声。 由于不使用二极管，所以可以制造高速限幅电路。
-
公开(公告)号：US09086491B2
公开(公告)日：2015-07-21
申请号：US14346658
申请日：2011-09-22
申请人： Masayuki Nakazawa , Junichi Ohi , Tetsuo Furumiya
发明人： Masayuki Nakazawa , Junichi Ohi , Tetsuo Furumiya
CPC分类号： G01T1/164 , A61B6/037 , G01T1/2006 , G01T1/2985
摘要： The disclosure has one object to provide a radiation tomography apparatus of a low price that facilitates a design change of a detector ring to suppress costs of development. The radiation tomography apparatus according to the disclosure includes a plurality of modules configured to receive detected data from different radiation detectors. Then, the modules each send and receive the detected data to and from one another, thereby sharing the detected data and counting the number of coincidence events. That is, when manufacturing radiation tomography apparatus, merely wiring the coincidence modules achieves implementation of the coincidence unit. This allows manufacturing the radiation tomography apparatus without new development of a substrate for performing coincidence. Consequently, the radiation tomography apparatus of a low price can be provided with suppressed costs of the development.
摘要翻译： 本发明的一个目的是提供一种低价格的放射线断层摄影装置，其便于检测器环的设计改变以抑制显影成本。 根据本公开的放射线断层摄影装置包括被配置为从不同的辐射检测器接收检测到的数据的多个模块。 然后，模块各自发送并接收检测到的数据到彼此，从而共享检测到的数据并对重合事件的数量进行计数。 也就是说，当制造放射线断层摄影装置时，仅仅配合符合模块实现了重合单元的实现。 这允许制造放射线断层摄影装置，而不需要用于执行重合的基板的新开发。 因此，可以提供低价格的放射线断层摄影装置抑制开发成本。
-
公开(公告)号：US20110089989A1
公开(公告)日：2011-04-21
申请号：US12996636
申请日：2008-06-09
申请人： Tetsuo Furumiya , Junichi Ohi
发明人： Tetsuo Furumiya , Junichi Ohi
IPC分类号： H03L5/00
CPC分类号： H03G11/002 , H03G11/02
摘要： The limiter circuit of this invention is a limiter circuit which, by switching action of a pair of transistors, allows passage of only signal voltage components of an input signal voltage included in ranges of an upper limit signal voltage and a lower limit signal voltage. With this construction, the pair of transistors carry out comparisons between the input signal voltage and threshold signal voltages and line switching at the same time. Therefore, there is no influence of propagation delay speed, and no switching noise occurs at times of line switching. Since diodes are not used, a high-speed limiter circuit can be manufactured.
摘要翻译： 本发明的限幅器电路是限制电路，其通过一对晶体管的开关动作，允许仅包含在上限信号电压和下限信号电压范围内的输入信号电压的信号电压分量。 利用这种结构，该对晶体管同时执行输入信号电压和阈值信号电压和线路切换之间的比较。 因此，不存在传播延迟速度的影响，在线路切换时不产生开关噪声。 由于不使用二极管，所以可以制造高速限幅电路。
-
公开(公告)号：US08305128B2
公开(公告)日：2012-11-06
申请号：US12933730
申请日：2008-03-21
IPC分类号： H03K3/01
CPC分类号： H03K3/84
摘要： According to a spurious pulse generator of this invention, integrating circuits are provided at a plurality of stages for carrying out integrating operations about time and outputting a spurious pulse, the integrating circuits being constructed to input a voltage value for controlling a crest value which is a peak swing of the spurious pulse to an amplifier forming an integrating circuit at a most upstream stage when a switching element is ON, and to input a constant voltage value when the switching element is OFF. As a result, the voltage value before ON-state and after ON-state of the switching element does not change but remains a constant voltage value, thereby obtaining a desired spurious pulse.
摘要翻译： 根据本发明的寄生脉冲发生器，集成电路设置在多个级，用于执行关于时间的积分操作并输出杂散脉冲，所述积分电路被构造成输入用于控制峰值的电压值，该峰值是 当开关元件为ON时，在最上游级形成积分电路的放大器的寄生脉冲的峰值摆幅，以及当开关元件断开时输入恒定电压值。 结果，开关元件的导通状态之后的电压值和开关元件的导通状态之间的电压值不变化，但是保持恒定的电压值，从而获得期望的寄生脉冲。
-
公开(公告)号：US20110018603A1
公开(公告)日：2011-01-27
申请号：US12933730
申请日：2008-03-21
IPC分类号： H03K3/01
CPC分类号： H03K3/84
摘要： According to a spurious pulse generator of this invention, integrating circuits are provided at a plurality of stages for carrying out integrating operations about time and outputting a spurious pulse, the integrating circuits being constructed to input a voltage value for controlling a crest value which is a peak swing of the spurious pulse to an amplifier forming an integrating circuit at a most upstream stage when a switching element is ON, and to input a constant voltage value when the switching element is OFF. As a result, the voltage value before ON-state and after ON-state of the switching element does not change but remains a constant voltage value, thereby obtaining a desired spurious pulse.
摘要翻译： 根据本发明的寄生脉冲发生器，集成电路设置在多个级，用于执行关于时间的积分操作并输出杂散脉冲，所述积分电路被构造成输入用于控制峰值的电压值，该峰值是 当开关元件为ON时，在最上游级形成积分电路的放大器的寄生脉冲的峰值摆幅，以及当开关元件断开时输入恒定电压值。 结果，开关元件的导通状态之后的电压值和开关元件的导通状态之间的电压值不变化，但是保持恒定的电压值，从而获得期望的寄生脉冲。
-
-
-
-
-
-
-
-
-
搜索结果
12 条记录 (耗时 0.023 秒)
