公开(公告)号：US5657122A

公开(公告)日：1997-08-12

申请号：US481227

申请日：1995-06-06

Applicant: Raul Curbelo ,  David B. Johnson

Inventor： Raul Curbelo ,  David B. Johnson

IPC: G02B9/02 ,  G01B9/02 ,  G01J3/28 ,  G01J3/453

CPC classification number: G01J3/453 ,  G01J2003/2866

Abstract: Alignment circuity and calibration method for a scanning interferometer. Phase shifts are introduced into the alignment servo to maximize overall modulation efficiency.

Abstract translation: 扫描干涉仪的校准电路和校准方法。 将相移引入到对准伺服中以最大化总体调制效率。

公开(公告)号：US5612784A

公开(公告)日：1997-03-18

申请号：US584217

申请日：1996-01-04

Applicant: Raul Curbelo

Inventor： Raul Curbelo

IPC: G01B9/02 ,  G01J3/45 ,  G01J3/453

CPC classification number: G01J3/453

Abstract: By considering a transient signal as merely another signal in a linear, shift-invariant system representing a step-scanning Fourier transform spectrometer, the present invention characterizes the transient signal and then compensates for its effect on the measurement by employing various signal processing techniques. Thus, according to one aspect of the present invention, it provides a method for obtaining the spectrum of the desired signal by subtracting the Fourier transform of the transient signal from the Fourier transform of the composite signal output from the detector (i.e., the signal containing both the desired signal and the transient signal). According to another aspect of the present invention, it provides a method for deriving an estimate of the Fourier transform of the transient signal from the Fourier transform of the composite signal.

Abstract translation: 通过考虑瞬态信号作为代表阶跃扫描傅里叶变换光谱仪的线性，移位不变系统中的另一信号，本发明描述了瞬态信号，然后通过采用各种信号处理技术来补偿其对测量的影响。 因此，根据本发明的一个方面，它提供了一种通过从检测器输出的复合信号的傅里叶变换中减去瞬态信号的傅里叶变换来获得期望信号的频谱的方法（即，包含 所需信号和瞬态信号）。 根据本发明的另一方面，提供了一种用于从复合信号的傅里叶变换导出瞬态信号的傅立叶变换的估计的方法。

公开(公告)号：US4935633A

公开(公告)日：1990-06-19

申请号：US255690

申请日：1988-10-11

Applicant: Raul Curbelo ,  David C. Brown

Inventor： Raul Curbelo ,  David C. Brown

IPC: H05B39/04

CPC classification number: H05B39/045 ,  Y02B20/142

Abstract: An infrared source that operates at about 1150.degree. C. without the need for water cooling. The source is configured with a small surface area radiating element, energized by a high frequency AC square wave. The frequency of the AC square wave is much greater than the inverse of the filament's thermal time constant so that the temperature is very stable. The radiating element is mounted relative to a concave reflector so that the infrared radiation forms a beam suitable for input to a spectrometer. In a first embodiment, the radiating element is in the form of a wire coil, while in a second embodiment, it is in the form of a cylinder having a central portion of reduced diameter.

Abstract translation: 红外源，工作在约1150℃，无需水冷却。 源极配置有由高频交流方波激励的小面积辐射元件。 交流方波的频率远大于灯丝的热时间常数的倒数，使得温度非常稳定。 辐射元件相对于凹面反射器安装，使得红外辐射形成适合于输入到光谱仪的光束。 在第一实施例中，辐射元件是线圈的形式，而在第二实施例中，它是具有直径减小的中心部分的圆筒的形式。

公开(公告)号：US3976862A

公开(公告)日：1976-08-24

申请号：US559482

申请日：1975-03-18

Applicant: Raul Curbelo

Inventor： Raul Curbelo

IPC: G01N15/10 ,  G01N15/14 ,  G01N33/483 ,  G01N33/49 ,  G06F15/20 ,  G01N33/16 ,  G06F15/42

CPC classification number: G01N15/1429 ,  G01N15/1427 ,  G01N15/1459 ,  G01N2015/0073 ,  G01N2015/008 ,  G01N2015/1454

Abstract: A flow stream processor particularly adapted for use in blood cell processing, and having discriminator circuits for selecting a particular group of cells from a large population, thereby permitting digital processing of data relative to the cells to be carried on only with respect to the particular group. Additionally the system includes circuitry for automatically adjusting flow stream velocity in accordance with an error signal developed proportionally to the phase difference between signals received from the first and last detectors along the flow stream resulting from transmit of the same cell.

Abstract translation: 特别适用于血细胞处理的流动流处理器，具有用于从大群体中选择特定的细胞群的鉴别器电路，从而允许相对于仅在相对于特定群体携带的细胞数据处理数据 。 另外，该系统包括用于根据与从相同小区的发射产生的流动流从第一和最后检测器接收的信号之间的相位差成比例地发展的误差信号来自动调整流动流速度的电路。

公开(公告)号：US5671047A

公开(公告)日：1997-09-23

申请号：US441126

申请日：1995-05-15

Applicant: Raul Curbelo

Inventor： Raul Curbelo

IPC: G01B9/02 ,  G01J3/45 ,  G02B5/08 ,  G02B27/14

CPC classification number: G02B27/144 ,  G02B27/145

Abstract: A laser beamsplitter for generating a plurality of parallel beams comprises a first beamsplitter and a second beamsplitter. The first and second beamsplitters are manufactured from glass flats having precisely parallel faces, wherein the front surface is coated with a reflective coating and the back surface is coated with a beamsplitter coating such that an initial laser beam passing through the first beamsplitter at a preferred angle of incidence is split into a first beam and a second beam. The second beamsplitter is positioned relative to the first beamsplitter such that the first beam passes through the second beamsplitter and is split into a third beam and a fourth beam. The parallelism of the output beams are determined by the parallelism of the glass flats, and no manual adjustments need to be made. The second, third, and fourth beams, if shone onto a surface orthogonal to the path of the initial beam, display three points that define a triangle, and preferably an equilateral triangle. The coatings on the surfaces of the first and second beamsplitters are chosen to provide three output beams having substantially the same intensity.

Abstract translation: 用于产生多个平行光束的激光分束器包括第一分束器和第二分束器。 第一和第二分束器由具有精确平行面的玻璃平板制造，其中前表面涂覆有反射涂层，并且后表面涂覆有分束器涂层，使得初始激光束以优选的角度穿过第一分束器 的入射被分成第一光束和第二光束。 第二分束器相对于第一分束器定位，使得第一光束穿过第二分束器并被分成第三光束和第四光束。 输出光束的平行度由玻璃平板的平行度决定，不需要进行手动调整。 第二，第三和第四光束如果照射到与初始光束的路径正交的表面上，则显示限定三角形的三个点，优选地是等边三角形。 选择第一和第二分束器的表面上的涂层以提供具有基本相同强度的三个输出光束。

公开(公告)号：US5265039A

公开(公告)日：1993-11-23

申请号：US716752

申请日：1991-06-18

Applicant: Raul Curbelo ,  Warren R. Howell

Inventor： Raul Curbelo ,  Warren R. Howell

IPC: H03M1/20

CPC classification number: G01J3/45 ,  H03M1/201

Abstract: A technique for improving the resolution of an A/D converter (30). The input analog signal is sampled to generate an analog level and the analog level is held (20) for an interval. A dither signal (22) is superimposed (23) on the held level to generate a fluctuating voltage. This fluctuating voltage is then sampled (25) a plurality of at least N times, and N sampled values are communicated to the A/D converter (30) so that N digitized values are generated. These digitized values are averaged (32) to provide an output having a digitization error reduced by a factor of up to N.sup.1/2.

Abstract translation: 一种用于提高A / D转换器（30）的分辨率的技术。 输入模拟信号被采样以产生模拟电平，并且模拟电平保持（20）一段间隔。 抖动信号（22）在保持电平上叠加（23）以产生波动电压。 然后对该波动电压进行采样（25）多次至少N次，并且将N个采样值传送到A / D转换器（30），从而生成N个数字化值。 这些数字化值被平均（32），以提供数字化误差降低到N1 / 2的因子的输出。

公开(公告)号：US5262635A

公开(公告)日：1993-11-16

申请号：US882184

申请日：1992-05-12

Applicant: Raul Curbelo

Inventor： Raul Curbelo

IPC: G01J3/45 ,  G01J1/08 ,  G01J3/453 ,  G01N21/27 ,  H01J40/14 ,  H01J43/30 ,  H03G11/08

CPC classification number: G01N21/274 ,  G01J2001/086 ,  G01J3/453

Abstract: A technique that corrects photodetector non-linearity without increasing the noise level in the detector signal. The detector is coupled to a preamplifier characterized by the absence of positive feedback, and the preamplifier signal is communicated to a linear amplifier whose output signal is then digitized. The digitized signal is then transformed according to stored calibration information that is representative of the non-linear characteristic of the photodetector. The transformed digitized value thus exhibits a linear characteristic as a function of the intensity of the light source. A number of embodiments perform the correction in hardware before digitizing the signal.

Abstract translation: 一种在不增加检测器信号中的噪声电平的情况下校正光电探测器非线性的技术。 检测器耦合到前置放大器，其特征在于不存在正反馈，并且前置放大器信号被传送到线性放大器，其输出信号然后被数字化。 然后，根据存储的代表光电检测器的非线性特征的校准信息来变换数字化信号。 因此，经变换的数字化值表现出作为光源的强度的函数的线性特性。 许多实施例在数字化信号之前执行硬件校正。

公开(公告)号：US4413908A

公开(公告)日：1983-11-08

申请号：US354934

申请日：1982-03-05

Applicant: David E. Abrams ,  Raul Curbelo ,  R. Brough Turner

Inventor： David E. Abrams ,  Raul Curbelo ,  R. Brough Turner

IPC: G01B9/02 ,  G01J3/453

CPC classification number: G01B9/02069 ,  G01B9/02007 ,  G01B9/0209 ,  G01J3/453 ,  G01B2290/60

Abstract: A scanning interferometer is provided with a substantially monochromatic reference beam having a wavelength outside the spectral region of principal interest. Modulation of the reference beam provides a measure of the scan velocity that is compared with a stablized time reference to provide an error signal used to regulate the scan velocity. Modulation of the reference beam also provides a fringe count. At a predetermined count, the time reference is changed in a pre-arranged manner, providing a pre-established scan acceleration sequence at the end of each scan. The acceleration sequence is selected to insure the direction of the scan is reversed within a quarter wave interval of the fringe count, insuring the fidelity of the fringe-count of the monochromatic reference source.

Abstract translation: 扫描干涉仪具有基本单色参考光束，其具有在主要感兴趣的光谱区域之外的波长。 参考光束的调制提供了与稳定时间基准相比较的扫描速度的量度，以提供用于调节扫描速度的误差信号。 参考光束的调制也提供边缘计数。 在预定计数时，以预先排列的方式改变时间基准，在每次扫描结束时提供预先建立的扫描加速度序列。 选择加速度序列以确保扫描的方向在边缘计数的四分之一波长间隔内反转，确保单色参考源的边缘计数的保真度。

公开(公告)号：US20060152755A1

公开(公告)日：2006-07-13

申请号：US11033790

申请日：2005-01-12

Applicant: John Curtis ,  Raul Curbelo ,  Michelle Pflaum

Inventor： John Curtis ,  Raul Curbelo ,  Michelle Pflaum

IPC: G06F3/12

CPC classification number: G06F17/30696

Abstract: Summary information for documents are stored as entries in a table in a relational database. Each entry includes a unique identifier, value(s) for a set of attributes and rendering information for the corresponding document. A collation order is obtained that defines a sort order for the documents based on the set of attributes. An index is generated based on the collation order and includes the rendering information for each document. In response to a rendering request or other query, a query that uses index-only access for the summary table can be used to obtain the rendering information. Further, a set of marker values can be included to provide efficient navigation of the index. Still further, additional functionality can be included to display the documents in a hierarchical structure. To this extent, the invention can automatically re-categorize data when the child locations of a hierarchical location exceed a specified number and/or link other relational data to a hierarchical location.

Abstract translation: 文档的摘要信息作为条目存储在关系数据库中的表中。 每个条目包括唯一标识符，一组属性的值和相应文档的呈现信息。 获得了一种根据属性集定义文档的排序顺序的归类顺序。 基于归类顺序生成索引，并且包括每个文档的呈现信息。 响应于呈现请求或其他查询，可以使用对摘要表使用仅索引访问的查询来获取呈现信息。 此外，可以包括一组标记值以提供索引的有效导航。 此外，可以包括附加功能以以层次结构显示文档。 在这种程度上，当分级位置的子位置超过指定数量和/或将其他关系数据链接到分层位置时，本发明可以自动重新分类数据。

公开(公告)号：US6020962A

公开(公告)日：2000-02-01

申请号：US712046

申请日：1996-09-10

Applicant: Raul Curbelo

Inventor： Raul Curbelo

IPC: G01B9/02 ,  G01J3/45 ,  G01J3/453

CPC classification number: G01J3/453

Abstract: By considering a transient signal as merely another signal in a linear, shift-invariant system representing a step-scanning Fourier transform spectrometer, the present invention characterizes the transient signal and then compensates for its effect on the measurement by employing various signal processing techniques. Thus, according to one aspect of the present invention, it provides a method for obtaining the spectrum of the desired signal by subtracting the Fourier transform of the transient signal from the Fourier transform of the composite signal output from the detector (i.e., the signal containing both the desired signal and the transient signal).According to another aspect of the present invention, it provides a method for deriving an estimate of the Fourier transform of the transient signal from the Fourier transform of the composite signal.

Abstract translation: 通过考虑瞬态信号作为代表阶跃扫描傅里叶变换光谱仪的线性，移位不变系统中的另一信号，本发明描述了瞬态信号，然后通过采用各种信号处理技术来补偿其对测量的影响。 因此，根据本发明的一个方面，它提供了一种通过从检测器输出的复合信号的傅里叶变换中减去瞬态信号的傅里叶变换来获得期望信号的频谱的方法（即，包含 所需信号和瞬态信号）。 根据本发明的另一方面，提供了一种用于从复合信号的傅里叶变换导出瞬态信号的傅立叶变换的估计的方法。