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公开(公告)号：US4135247A
公开(公告)日：1979-01-16
申请号：US824632
申请日：1977-08-15
CPC分类号： A61B6/032 , G06T11/006 , G06T2211/421 , Y10S378/901
摘要： A tomography processor system for processing data from a plurality of projections in essentially real time to produce a reconstructed image immediately following completion of a scan. The system includes specialized high-speed processing stages for performing required calculations and operating in concert with a low-cost computer providing overall system control. These processing stages form a multi-stage pipeline processor capable of performing the correction, convolution, interpolation, and back projection functions required to reconstruct the desired final image. The invention makes use of a reconstruction algorithm particularly adapted to implementation in the manner disclosed and claimed.
摘要翻译： 一种用于基本上实时地处理来自多个投影的数据的断层摄影处理器系统，以便在完成扫描之后立即产生重建图像。 该系统包括专门的高速处理阶段，用于执行所需的计算，并与提供整体系统控制的低成本计算机协同工作。 这些处理阶段形成能够执行重建所需最终图像所需的校正，卷积，插值和反投影功能的多级流水线处理器。 本发明利用特别适于以所公开和所要求保护的方式实现的重建算法。
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公开(公告)号：US5109397A
公开(公告)日：1992-04-28
申请号：US643728
申请日：1991-01-22
IPC分类号： A61B6/03
摘要： An improved X-ray tomography system includes means for providing error information at each incremental angular position of the 360.degree. rotation of each scan, indicative of any mechanical lateral movements of the various tomography components during a scan, and means for compensating the data derived from the analog information signals representative of X-ray flux detected by the detectors during each projection view as a function of the error information during the back projection process so as to provide accurate scan data.
摘要翻译： 改进的X射线断层摄影系统包括用于在每个扫描的360°旋转的每个增量角位置处提供错误信息的装置，其指示在扫描期间各种断层摄影部件的任何机械横向运动，以及用于补偿从 所述模拟信息信号表示在每个投影视图期间由所述检测器检测的X射线通量作为所述反投影处理期间的所述误差信息的函数，以便提供精确的扫描数据。
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公开(公告)号：US4008405A
公开(公告)日：1977-02-15
申请号：US584052
申请日：1975-06-05
申请人： Leopold Neumann , Bernard M. Gordon
发明人： Leopold Neumann , Bernard M. Gordon
摘要： For use in an electronic digitizer such as employed in an electronic weighing system, a circuit for detecting motion and providing a digital output signal. The circuitry includes a dual slope analog-to-digital converter having means for retaining a representation of the integrated analog level of a present and previous conversion cycle, the levels being representative of sampled data. The stored amplitudes are compared to provide an analog difference signal, and an output signal representative of measured weight is provided only when the difference signal is less than a predetermined reference threshold.
摘要翻译： 用于诸如在电子称重系统中使用的电子数字转换器，用于检测运动并提供数字输出信号的电路。 电路包括双斜率模数转换器，其具有用于保持当前和之前转换周期的集成模拟电平的表示的装置，该电平代表采样数据。 存储的幅度被比较以提供模拟差分信号，并且仅当差信号小于预定参考阈值时才提供表示测量的权重的输出信号。
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4.发明授权System containing a predetermined number of monitoring devices and at least one central station 失效包含预定数量的监视装置和至少一个中心站的系统
公开(公告)号：US4356475A
公开(公告)日：1982-10-26
申请号：US186710
申请日：1980-09-12
CPC分类号： G06F19/3418 , G06F19/3406 , G06F19/322
摘要： The system contains a number of monitoring devices, such as bedside units for monitoring parameters of patients, and a central station in star connection. Each monitoring device contains a signal generator and a display device for the display of monitored parameters. The central station contains a central display device and a central multiplexer. The multiplexer has a separate signal input for receiving the output signals of each signal generator, and a first and second number of multiplexer outputs. The output signals of the signal generators each contain undelayed and delayed signal data. The first multiplexer outputs can be connected to the central display device. Thereby, the undelayed signal data contained in the output signals of selected monitoring devices can be displayed in the central station. These signal data represent all parameters monitored by the selected device. The second multiplexer outputs are connected to an intermediate memory for transfer of the delayed signal data of all signal generators thereto. The delayed data stored in the memory can be transmitted in any signal combination for display as a mixed image on the central display device. Thereby, parameters stemming from different monitoring devices can be displayed simultaneously on the central display device.
摘要翻译： 该系统包含多个监测装置，例如用于监测患者参数的床边单元和星形连接的中心站。 每个监视装置包含信号发生器和用于显示被监视参数的显示装置。 中心站包含中央显示设备和中央多路复用器。 多路复用器具有单独的信号输入，用于接收每个信号发生器的输出信号，以及第一和第二数量的多路复用器输出。 信号发生器的输出信号各自包含未延迟和延迟的信号数据。 第一个多路复用器输出可以连接到中央显示设备。 由此，可以在中央站显示包含在所选监视装置的输出信号中的未延迟信号数据。 这些信号数据表示由所选设备监测的所有参数。 第二多路复用器输出连接到中间存储器，用于传送所有信号发生器的延迟信号数据。 存储在存储器中的延迟数据可以以任何信号组合传输，以在中央显示装置上作为混合图像显示。 因此，可以在中央显示装置上同时显示来自不同监视装置的参数。
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5.发明授权Method and apparatus for generating three coordinate signals x, y, z for an x, y, z display device 失效用于生成x，y，z显示装置的三坐标信号x，y，z的方法和装置
公开(公告)号：US4426644A
公开(公告)日：1984-01-17
申请号：US186539
申请日：1980-09-12
CPC分类号： G01R13/20 , G01R13/206 , G01R13/22
摘要： A composite signal is transmitted via a transmission line to an x, y, z display device. The composite signal contains in each of a plurality of predetermined time intervals an identifiable signal. The first signal of said composite signal is a synchronizing start signal. The other signals contain varying information. In the display device there are generated an x-, a y- and a z-coordinate signal. These coordinate signals are generated such that in said predetermined time intervals with reference to the synchronizing start signal and in predetermined varying combinations two of these three coordinate signals are developed and determined by the display device, whereas the remaining third coordinate signal is developed by the display device, but is determined from one of the other signals of the composite signal received via the transmission line.
摘要翻译： 复合信号通过传输线传输到x，y，z显示装置。 复合信号在多个预定时间间隔的每一个中包含可识别的信号。 所述复合信号的第一信号是同步开始信号。 其他信号包含不同的信息。 在显示装置中，产生x，y，z坐标信号。 产生这些坐标信号，使得在参考同步开始信号的所述预定时间间隔中，并且在预定的变化组合中，由显示装置显影和确定这三个坐标信号中的两个，而剩下的第三坐标信号由显示器显影 装置，而是经由传输线路接收的复合信号的其它信号之一确定。
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公开(公告)号：US4031533A
公开(公告)日：1977-06-21
申请号：US618783
申请日：1975-10-02
申请人： Leopold Neumann
发明人： Leopold Neumann
摘要： For use in an electronic weighing or force measuring system having a load cell providing an output signal representing measured force or weight, a ratiometric analog-to-digital converter operative with a low level differential input signal from the load cell and providing differential sensing of load cell excitation for use as a reference signal and generation of any required offset signal.
摘要翻译： 对于具有负载传感器提供表示测量的力或重量的输出信号的电子称重或力测量系统，使用比例式模数转换器，其工作于来自测力传感器的低电平差分输入信号，并提供负载的差分感测 电池激励用作参考信号并产生任何所需的偏移信号。
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7.发明授权Audio signal processing circuit for use in a hearing aid and method for operating same 失效用于助听器的音频信号处理电路及其操作方法
公开(公告)号：US4680798A
公开(公告)日：1987-07-14
申请号：US633446
申请日：1984-07-23
申请人： Leopold Neumann
发明人： Leopold Neumann
CPC分类号： H04R25/505
摘要： In a hearing aid of the type having an electrical amplifier, wherein the improvement provides an audio signal processing circuit incorporated into the amplifier and including integral computing circuitry for controlling the operation thereof; the processing circuit providing circuitry for receiving an audio frequency electrical signal, circuitry for separating the audio frequency signal into a plurality of frequency bandwidths, circuitry for separately amplifying any audio frequency signal present in each of the bandwidths, circuitry for summing the amplified audio frequency signals from each of the bandwidths to produce a reconstituted signal, and circuitry for controlling amplification including circuitry for sampling any audio frequency signal present in each of the bandwidths and circuitry for determining, in response to the audio frequency signals sampled from all of the bandwidths the amplification level for each bandwidth for the separate amplification.
摘要翻译： 在具有电放大器的类型的助听器中，其中改进提供了并入放大器中的音频信号处理电路，并且包括用于控制其操作的积分计算电路; 用于接收音频电信号的处理电路提供电路，用于将音频信号分离成多个频率带宽的电路，用于分别放大每个带宽中存在的任何音频信号的电路，用于对放大的音频信号进行求和的电路 从每个带宽产生重构的信号，以及用于控制放大的电路，包括用于采样每个带宽和电路中存在的任何音频信号的电路，用于响应于从所有带宽采样的音频信号，确定放大 级别为每个带宽进行单独放大。
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公开(公告)号：US4409669A
公开(公告)日：1983-10-11
申请号：US186763
申请日：1980-09-12
CPC分类号： G06F19/3406 , G06F19/324 , G06F19/3412 , G06F19/3418
摘要： A signal processing apparatus comprises a main unit having a frame, and a plurality of modules for processing analog signals replaceably inserted into said frame. Each of the modules has an analog-to-digital converter for the analog signals and an identification signal generator which generates a module identification signal different for each module. The main unit comprises a signal processing system and a conversion pulse clock generator. The latter one clocks each analog-to-digital converter in each module to convert analog signals to digital data. The digital data are transmitted together with the module identification signal to the signal processing system.
摘要翻译： 信号处理装置包括具有帧的主单元和用于处理可替换地插入到所述帧中的模拟信号的多个模块。 每个模块具有用于模拟信号的模拟 - 数字转换器和识别信号发生器，其产生对于每个模块不同的模块识别信号。 主单元包括信号处理系统和转换脉冲时钟发生器。 后者在每个模块中对每个模数转换器进行时钟转换，以将模拟信号转换为数字数据。 数字数据与模块识别信号一起发送到信号处理系统。
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公开(公告)号：US4409652A
公开(公告)日：1983-10-11
申请号：US186764
申请日：1980-09-12
CPC分类号： G06F13/285 , A61B5/02 , G06F19/3406
摘要： The apparatus contains a microprocessor circuit, which comprises a preprocessor which is not DMA-capable in itself and a DMA-capable central processor. Both processors can be made to communicate with each other by means of a main memory. This is performed by temporarily cutting off the communication path between said DMA-capable central processor and said main memory, specifically by an artificial DMA request via the address line of said preprocessor, and by establishing instead a communication path between said preprocessor and said main memory. The communication of said preprocessor with said main memory is started after said central processor has sent a return message signal to said preprocessor, whereby it confirms that its own communication with said main memory is completed.
摘要翻译： 该装置包含微处理器电路，其包括本身不具有DMA功能的预处理器和具有DMA能力的中央处理器。 两个处理器都可以通过主存储器相互通信。 这是通过临时切断所述具有DMA能力的中央处理器和所述主存储器之间的通信路径，特别是经由所述预处理器的地址线的人造DMA请求，并且通过建立所述预处理器和所述主存储器之间的通信路径来执行的 。 所述预处理器与所述主存储器的通信在所述中央处理器向所述预处理器发送返回消息信号之后开始，从而确认其与所述主存储器的自身通信完成。
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公开(公告)号：US4024533A
公开(公告)日：1977-05-17
申请号：US594758
申请日：1975-07-10
申请人： Leopold Neumann
发明人： Leopold Neumann
摘要： An analog-to-digitial converter of the dual slope type wherein simultaneous integration of two input signals is achieved to provide a digital output substantially immune to disturbances affecting both signals. First and second dual slope converter circuits are employed, each receiving a respective analog signal. During conversion of the first signal, integration of the second signal is accomplished such that a digital output signal is provided representing the integrated instantaneous ratio of the two input signals and which is substantially free of disturbances affectng both of signals which may be introduced during a conversion cycle.
摘要翻译： 实现双斜率类型的模数转换器，其中实现两个输入信号的同时积分，以提供基本上免受影响两个信号的扰动的数字输出。 采用第一和第二双斜率转换器电路，每个接收相应的模拟信号。 在转换第一信号期间，实现第二信号的积分，使得提供表示两个输入信号的积分瞬时比率的数字输出信号，并且其基本上没有影响可能在转换期间引入的信号的干扰 周期。
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