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公开(公告)号：US6003056A
公开(公告)日：1999-12-14
申请号：US779731
申请日：1997-01-06
CPC分类号： G06F17/142
摘要： A method and apparatus for calculating fast Fourier transforms FFTs. An FFT of a given size is formatted using tensor product principles for implementation in apparatus or by software such that the same reconfigurable hardware or software can calculate FFTs of any dimension for the selected FFT size. The FFT is factored into an input permutation and successive stages for computing tensor products of dimensionless Fourier transforms of a relatively small base size and twiddle factors, with load-stride permutations between computation stages. The basic building blocks of the circuitry can be reconfigurable for maximizing use-flexibility of the hardware or software. Examples of digital circuit apparatus configured to compute dimensionless formatted FFTs are presented.
摘要翻译： 一种用于计算快速傅里叶变换FFT的方法和装置。 使用用于在设备中或由软件实现的张量产品原理来格式化给定大小的FFT，使得相同的可重新配置的硬件或软件可以计算所选FFT大小的任何维度的FFT。 FFT被计入输入排列和连续阶段，用于计算相对小的基本尺寸和旋转因子的无量纲傅立叶变换的张量乘积，并在计算阶段之间进行负载跨步排列。 电路的基本构建块可以重新配置，以最大化硬件或软件的使用灵活性。 呈现配置成计算无量纲格式FFT的数字电路装置的例子。
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公开(公告)号：US5779038A
公开(公告)日：1998-07-14
申请号：US445252
申请日：1995-05-19
IPC分类号： B65D85/57 , G11B23/023 , G11B33/04
CPC分类号： G11B33/0422 , Y10S206/804
摘要： A storage container comprising an outer shell and an insertable drawer member configured and dimensioned for receiving and storing information-bearing discs and accompanying printed matter. The insertable drawer member includes features to store the discs by contacting non-information bearing surfaces thereof as well as means for selectively retrieving the printed matter together with the disc from the outer shell. The container of the invention additionally comprises a tamper seal formed integral therewith which fractures the first time the drawer member is withdrawn from the shell for determining whether the storage container has ever been opened to access its contents after it was sealed at the factory.
摘要翻译： 一种存储容器，其包括外壳和可插入的抽屉构件，所述可插入抽屉构件构造和尺寸用于接收和存储信息承载盘和附带的打印物。 可插入抽屉构件包括通过接触其不信息支承表面来存储盘的特征，以及用于与外壳一起选择性地将打印物与盘一起取回的装置。 本发明的容器还包括与其一体形成的捣固密封件，其首先使抽屉构件从壳体中取出而断裂，以便确定在工厂密封之后存储容器是否已经打开以进入其内容物。
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63.发明授权
公开(公告)号：US5500730A
公开(公告)日：1996-03-19
申请号：US298370
申请日：1994-08-30
申请人： Robert W. Johnson
发明人： Robert W. Johnson
CPC分类号： G01M11/3109
摘要： There is presented an apparatus and method of locating a reflective anomaly in an optical fiber. An optical generator is positioned at one end of a light path extending to and from a reflective anomaly in an optical fiber, and periodic pulses of light are injected into the fiber. A bend coupler containing directional optical detectors is clamped to the optical fiber in mid-span, between the optical generator and a reflective anomaly, and light energy is tapped. The coupler is capable of detecting and discriminating light travelling in both longitudinal directions. After signal conditioning and digitization, the light pulses are submitted to a logical network to initiate a timer that measures a time interval between the event of an interrogating light pulse, and its reflection, the result being memorized in a buffer. A microprocessor controls the system, and computes distance between the attached bend coupler and the reflective anomaly as a function of the memorized time interval. The result is then displayed for the user. The system enables a fault to be rapidly and accurately located in a multidrop installation without violating intermediate fibers.
摘要翻译： 提出了一种在光纤中定位反射异常的装置和方法。 光学发生器位于延伸到光纤中的反射异常的光路的一端，并且周期性的光脉冲被注入到光纤中。 包含定向光学检测器的弯曲耦合器在中间跨度处被夹持在光学发生器和反射异常之间，并且轻敲能量。 耦合器能够检测和区分在两个纵向方向上行进的光。 在信号调节和数字化之后，光脉冲被提交到逻辑网络以启动测量询问光脉冲的事件与其反射之间的时间间隔的定时器，其结果被存储在缓冲器中。 微处理器控制系统，并计算附加的弯曲耦合器与反射异常之间的距离作为存储时间间隔的函数。 然后为用户显示结果。 该系统能够使故障快速准确地定位在多点安装中，而不会违反中间纤维。
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64.发明授权Storage container for information-bearing disc devices having printed matter retrieval means 失效具有印刷物检索装置的信息承载盘装置的储存容器
公开(公告)号：US5445265A
公开(公告)日：1995-08-29
申请号：US192926
申请日：1994-02-07
IPC分类号： B65D85/57 , G11B23/023 , G11B33/04
CPC分类号： G11B33/0422 , Y10S206/804
摘要： A storage container comprising an outer shell and an insertable drawer member configured and dimensioned for receiving and storing information-bearing discs and accompanying printed matter. The insertable drawer member includes features to store the discs by contacting non-information bearing surfaces thereof as well as means for selectively retrieving the printed matter together with the disc from the outer shell. The container of the invention additionally comprises a tamper seal formed integral therewith which fractures the first time the drawer member is withdrawn from the shell for determining whether the storage container has ever been opened to access its contents after it was sealed at the factory.
摘要翻译： 一种存储容器，其包括外壳和可插入的抽屉构件，所述可插入抽屉构件构造和尺寸用于接收和存储信息承载盘和附带的打印物。 可插入抽屉构件包括通过接触其不信息支承表面来存储盘的特征，以及用于与外壳一起选择性地将打印物与盘一起取回的装置。 本发明的容器还包括与其一体形成的捣固密封件，其首先使抽屉构件从壳体中取出而断裂，以便确定在工厂密封之后存储容器是否已经打开以进入其内容物。
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公开(公告)号：USD347548S
公开(公告)日：1994-06-07
申请号：US3788
申请日：1993-01-15
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公开(公告)号：USD269553S
公开(公告)日：1983-06-28
申请号：US178034
申请日：1980-08-14
申请人： Robert W. Johnson , Donald W. Doman
设计人： Robert W. Johnson , Donald W. Doman
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公开(公告)号：USD264173S
公开(公告)日：1982-05-04
申请号：US112534
申请日：1980-01-16
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公开(公告)号：USD260898S
公开(公告)日：1981-09-22
申请号：US112539
申请日：1980-01-16
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公开(公告)号：US4087697A
公开(公告)日：1978-05-02
申请号：US728863
申请日：1976-10-01
申请人： Robert W. Johnson
发明人： Robert W. Johnson
CPC分类号： H02J9/062 , Y10T307/625 , Y10T307/735
摘要： A system for rapidly substituting one source of AC power for another. A solid-state gated electronic valve is coupled in circuit with a principal power source or "line" and the current through the valve is monitored. Line voltage is also monitored and a timing signal produced to keep the system in synchronism with the principal power source. When the source voltage decreases or changes abruptly, or if its phase drifts unacceptably, the difference detected between the source and a reference effects the termination of valve gating signals, and allows the application of synchronous enabling signals to a standby power source. If the solid-state valve is non-conducting the standby source starts immediately in synchronism with the previously-supplied load voltage. If current is flowing in the valve, however, a commutating signal is produced which overrides the synchronous standby enabling signal to energize the standby power source with the proper polarity to extinguish current through the valve. When the current decreases below the holding current value the standby source is caused to enter the synchronous mode.
摘要翻译： 一种用于快速地将一个AC电源替换为另一个的系统。 固态门控电子阀与主电源或“线路”耦合在一起，并监视通过阀门的电流。 还监控线路电压，并产生定时信号以保持系统与主电源同步。 当源极电压降低或突然变化时，或者如果其相位漂移不可接受，则源极与基准之间的差异会影响阀门选通信号的终止，并允许将备用电源应用于同步启动信号。 如果固态阀不导通，则备用源立即与先前提供的负载电压同步启动。 然而，如果电流在阀中流动，则产生换向信号，该换向信号超过同步待机使能信号，以适当极性激励备用电源，以消除通过该阀的电流。 当电流降低到保持电流值以下时，备用电源进入同步模式。
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公开(公告)号：US4080548A
公开(公告)日：1978-03-21
申请号：US755027
申请日：1976-12-28
申请人： Robert W. Johnson
发明人： Robert W. Johnson
CPC分类号： H01K9/00
摘要： A lighting system provided with a plurality of filaments, the wattage ratings of which differ in a predetermined relationship. The filaments are selectively energized so that the light intensity of the lamp may be varied in steps, without a change in color temperature which otherwise results when the intensity is varied in response to a varying voltage applied to a single filament.
摘要翻译： 具有多个长丝的照明系统，其功率等级以预定的关系不同。 灯丝被选择性地激励，使得灯的光强度可以逐步变化，而不会在色温变化时响应于单个灯丝施加的变化的电压而变化。
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