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公开(公告)号：US4395635A
公开(公告)日：1983-07-26
申请号：US228681
申请日：1981-01-26
CPC分类号： G01T1/2985 , A61B6/037
摘要： A gamma ray coincidence analysis system for a multichannel nuclear imaging device of the type employing scintillation detectors in ring-like arrays, with the detectors arranged in quadrants of the rings. The scintillation detectors in a ring have output circuits including respective timing discriminators and OR gates, and respective energy discriminators providing delayed energy pulses, and wherein timing pulses from the respective quadrants are fed via the OR gates to the inputs of a four-input coincidence detector without any delay except for a small delay internal to the discriminators and the very small delay of the OR gates. The delay of the energy pulses at the energy discriminators is for an energy validation period of 500 nsec. The output pulse from the coincidence detector is subsequently delayed for a similar period for verification of the energy levels of the two channels causing the coincidence. A data output signal is generated responsive to the concurrence of the delayed coincidence signal and the delayed energy verification pulses.
摘要翻译： 一种用于使用环状阵列中的闪烁检测器的多通道核成像装置的伽马射线符合分析系统，其中检测器布置在环的象限中。 环中的闪烁检测器具有包括各自的定时鉴别器和或门的输出电路，以及提供延迟的能量脉冲的各自的能量鉴别器，并且其中来自相应象限的定时脉冲经由或门馈送到四输入重合检测器 没有任何延迟，除了鉴别器内部的小延迟和OR门的非常小的延迟。 在能量鉴别器处的能量脉冲的延迟是在500nsec的能量验证周期。 随后将来自重合检测器的输出脉冲延迟相同的周期，以验证两个通道的能量水平导致重合。 响应于延迟符合信号和延迟能量验证脉冲的同时产生数据输出信号。
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公开(公告)号：US4415807A
公开(公告)日：1983-11-15
申请号：US250840
申请日：1981-04-03
CPC分类号： G01T1/2985 , A61B6/037
摘要： A positron emission tomographic scanner is provided with cross-slice event data handling capability by adding only a coincidence detector and register in common to the circuitry for two adjacent planar detector arrays and adding an OR gate to the circuitry for each array. The improvement permits the same circuitry to be utilized for both cross-slice event processing and intra-slice event processing. Selection of the identification code for a detector is determined by a first coincidence detector in the case of an intra-slice event and the added coincidence detector in the case of an inter-slice event.
摘要翻译： 正电子发射断层扫描仪具有跨切片事件数据处理能力，通过仅将一致检测器和寄存器公共地注册到两个相邻的平面检测器阵列的电路中，并将或门加到每个阵列的电路上。 该改进允许将相同的电路用于跨切片事件处理和片内事件处理。 在片内事件的情况下由第一重合检测器确定检测器的识别码的选择，并且在片间事件的情况下由添加的重合检测器确定。
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公开(公告)号：US4421986A
公开(公告)日：1983-12-20
申请号：US209305
申请日：1980-11-21
申请人： Walter S. Friauf , Rodney A. Brooks
发明人： Walter S. Friauf , Rodney A. Brooks
CPC分类号： G01T1/208
摘要： A discriminator circuit for use with a scintillation detector, wherein the scintillation detector output is fed to a time discriminator and the output of the time discriminator is fed via a short precision delay device to one input terminal of a transmission gate device. The detector output signal is also fed to a fast energy discriminator whose output is furnished as an enable signal to the other input terminal of the transmission gate device, providing time output pulses. Timing pulses from the transmission gate device are furnished to a long non-precision delay device and then to one input terminal of a transmission gate. The detector output signal is also fed through a slow energy discriminator and an enable line to another input terminal of the last-named transmission gate, providing energy output pulses in an energy output line which are furnished to the subsequent portion of the system.
摘要翻译： 一种用于闪烁检测器的识别电路，其中闪烁检测器输出被馈送到时间鉴别器，并且时间鉴别器的输出经由短精度延迟器件馈送到传输门装置的一个输入端。 检测器输出信号也被馈送到快速能量鉴别器，其输出作为使能信号提供给传输门装置的另一个输入端，提供时间输出脉冲。 来自传输门装置的定时脉冲被提供给长非精度延迟装置，然后被提供给传输门的一个输入端。 检测器输出信号还通过慢能量鉴别器和使能线路馈送到最后命名的传输门极的另一个输入端，从而提供能量输出脉冲，该能量输出线路提供给系统的后续部分。
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4.发明授权Miniature electrical and mechanical structures useful for constructing miniature robots 失效用于构造微型机器人的微型电气和机械结构
公开(公告)号：US5113117A
公开(公告)日：1992-05-12
申请号：US404741
申请日：1989-09-08
申请人： Rodney A. Brooks , Lee S. Tavrow , Anita M. Flynn
发明人： Rodney A. Brooks , Lee S. Tavrow , Anita M. Flynn
CPC分类号： H01L21/6715 , B25J7/00 , H02N2/08 , H02N2/16 , Y10T29/49139 , Y10T29/4914 , Y10T29/49142
摘要： An electrical device comprises a three-dimensional body formed from an organic polymer and a plurality of electrical elements attached to the body. The body has a regular pattern of sockets in its surface, and the electrical elements have barbed appendages, or, alternatively, the body has appendages and the electrical elements have sockets. The elements are affixed to the body by insertion of the appendages into the sockets. Electrical connections between the electrical elements are formed by selective deposition of tungsten onto the surface of the body with a scanning laser beam. A miniature ("gnat") robot can be constructed using those constructional techniques.
摘要翻译： 电气装置包括由有机聚合物形成的三维体和附接到身体的多个电气元件。 主体在其表面上具有规则的插座图案，并且电气元件具有倒钩附件，或者替代地，主体具有附件并且电气元件具有插座。 元件通过将附件插入插座中而固定在身体上。 电子元件之间的电连接通过用扫描激光束选择性沉积到体表面上而形成。 可以使用这些构造技术构造一个微型（“gnat”）机器人。
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公开(公告)号：US5034608A
公开(公告)日：1991-07-23
申请号：US404732
申请日：1989-09-08
申请人： Lee S. Tavrow , Anita M. Flynn , Rodney A. Brooks
发明人： Lee S. Tavrow , Anita M. Flynn , Rodney A. Brooks
IPC分类号： G01J5/34 , H01L27/148 , H01L37/02
CPC分类号： G01J5/34 , H01L27/14881 , H01L37/02
摘要： An infrared sensor operable without cooling and thus usable at room temperature comprises a substrate supporting thin films of pyroelectric material and switched capacitor control circuitry. The control circuitry compares the absolute capacitance of a reference thin film to that of a sensor thin film, thereby sensing infrared radiation without the use of a chopper device. The reference thin film is thermally coupled to the substrate, and the sensor thin film is thermally insulated form the substrate. To increase the fill factor, the sensor thin film is placed directly above the control circuitry. In another apsect, the sensor is adpated to sense visible and infrared light by adding a CCD sensor and appropriate control circuitry to the substrate.
摘要翻译： 可在不冷却的情况下可操作的红外线传感器可在室温下使用，其包括支撑热电材料薄膜和开关电容器控制电路的基板。 控制电路将参考薄膜的绝对电容与传感器薄膜的绝对电容进行比较，从而在不使用斩波器的情况下感测红外辐射。 参考薄膜热耦合到衬底，并且传感器薄膜与衬底热绝缘。 为了增加填充因子，传感器薄膜直接放置在控制电路的正上方。 在另一个apsect中，传感器适用于通过向基板添加CCD传感器和适当的控制电路来感测可见光和红外光。
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公开(公告)号：US5293094A
公开(公告)日：1994-03-08
申请号：US626224
申请日：1990-12-05
CPC分类号： H02N2/0095 , H01L41/318 , H02N2/08 , H02N2/16 , Y10T29/42
摘要： A ferroelectric motor comprises a single layer of ferroelectric material electrically excited by an array of electrical contacts and an electrical excitation source for supplying phased electrical signals to the contacts thereby creating a travelling wave of mechanical deformation in the ferroelectric layer and actuating an actuator. In alternative embodiments of the invention, the actuator may be linear or rotary. The motor may be fabricated on a single integrated circuit die, in which case the layer of ferroelectric material may be a thin film of PZT. In other embodiments a motor may comprise two dies which are sandwiched together by wafer to wafer bonding. Portions of a die may be removed to permit a linear actuator to project beyond the die.
摘要翻译： 铁电电动机包括由电触头阵列电激励的单层铁电材料和用于向触点提供相控电信号的电激励源，从而在铁电层中产生机械变形的行波并致动致动器。 在本发明的替代实施例中，致动器可以是线性的或旋转的。 电动机可以制造在单个集成电路管芯上，在这种情况下，铁电材料层可以是PZT的薄膜。 在其它实施例中，马达可以包括通过晶片到晶片接合夹在一起的两个管芯。 可以去除模具的部分以允许线性致动器突出超过模具。
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公开(公告)号：US4247774A
公开(公告)日：1981-01-27
申请号：US918804
申请日：1978-06-26
申请人： Rodney A. Brooks
发明人： Rodney A. Brooks
CPC分类号： A61B6/032 , A61B6/4266 , A61B6/482 , A61B6/582 , A61N5/1048 , G01T1/202
摘要： A dual-energy detector system for use in computer assisted tomography. This system produces two independent sets of information from one scan, namely, high-energy and low-energy data. The system employs two cooperating detectors. The first one responds primarily to low-energy photons, allowing most high-energy photons to pass through. The second detector lies behind the first and detects the remaining photons. Thus, two electrical signals are generated which contain information in two different energy ranges, which signals can be computer-processed. The attenuation coefficients at these two energies are sufficiently different so that differential diagnosis and chemical identification may be aided. The computer-processed signals may be employed to provide any of (a) beam-hardening correction, (b) chemical identification and composition of tissues, such as lesions, bone, etc., (c) localization of injected contrast material, or (d) attenuation coefficients for radiation therapy planning.
摘要翻译： 一种用于计算机辅助断层扫描的双能量探测器系统。 该系统从一个扫描产生两组独立的信息，即高能量和低能量数据。 该系统采用两个协同检测器。 第一个主要响应于低能量光子，允许大多数高能光子通过。 第二个检测器位于第一个检测器的后面，并检测剩余的光子。 因此，产生两个包含两个不同能量范围内的信号的电信号，这些信号可以被计算机处理。 这两种能量下的衰减系数有很大的不同，可以帮助鉴别诊断和化学鉴定。 可以使用计算机处理的信号来提供（a）光束硬化校正，（b）化学鉴定和组织的组成，例如损伤，骨等，（c）注射的造影剂的定位或（ d）放射治疗计划的衰减系数。
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