公开(公告)号：US07200534B2

公开(公告)日：2007-04-03

申请号：US11074122

申请日：2005-03-07

申请人： John M. Heumann ,  Gerald L. Meyer

发明人： John M. Heumann ,  Gerald L. Meyer

IPC分类号： G06G7/48

CPC分类号： A61B6/025

摘要： In one embodiment, a method for designing a radiographic imaging system includes 1) receiving a number of design constraints for the system, and then 2) in response to the constraints, generating a plurality of radiographic imaging system designs, each having a different number of radiographic sources, and each requiring a different number of nominal scan passes to image a specimen region of interest. Designs having a greater number of radiographic sources have sets of translated radiographic detection areas sharing at least some coincident, nominal scan passes as compared to radiographic imaging system designs having fewer radiographic sources. Each set of translated radiographic detection areas is associated with a radiographic source that is replicated and translated with respect to a radiographic source that forms part of a radiographic imaging system design having fewer radiographic sources. Related systems and apparatus are also disclosed.

摘要翻译： 在一个实施例中，一种用于设计射线照相成像系统的方法包括：1）为系统接收多个设计约束，然后响应于约束，产生多个放射照相成像系统设计，每个具有不同数量的 射线照相源，并且每个都需要不同数量的标称扫描通过以对感兴趣的标本区域成像。 与具有较少射线照相源的射线照相成像系统设计相比，具有更多数量的放射线照相源的设计具有共享至少一些重合的标称扫描通过的一组翻转的放射线照相检测区域。 每组翻译的放射照相检测区域与放射照相源相关联，该放射照相源相对于形成具有较少放射照相源的射线照相成像系统设计的一部分的放射照相源被复制和平移。 还公开了相关系统和装置。

公开(公告)号：US5479207A

公开(公告)日：1995-12-26

申请号：US196617

申请日：1994-02-14

申请人： Greg A. Degi ,  Gerald L. Meyer ,  Steven L. Webb

发明人： Greg A. Degi ,  Gerald L. Meyer ,  Steven L. Webb

IPC分类号： H04N1/028 ,  H04N1/19 ,  H04N1/40 ,  H04N1/401 ,  H04N5/235 ,  H04N5/369 ,  H04N5/372 ,  H04N3/14

CPC分类号： H04N5/3692 ,  H04N1/40056 ,  H04N1/401 ,  H04N5/2353 ,  H04N5/372

摘要： A system and method for improving the signal to noise ratio of a CCD sensor within an optical scanner varies the exposure time of the CCD sensor. Exposure time is varied by clocking the CCD sensor a number of times equal to the number of pixels in the CCD sensor plus an additional number of clock cycles to create a delay. The additional exposure time maximizes the magnitudes of the charges produced by the CCD sensor. The required delay is computed during a pre-scan calibration step.

摘要翻译： 用于提高光学扫描仪内的CCD传感器的信噪比的系统和方法改变了CCD传感器的曝光时间。 通过将CCD传感器计时等于CCD传感器中的像素数量以及附加数量的时钟周期来创建延迟，来改变曝光时间。 额外的曝光时间使CCD传感器产生的电荷的大小最大化。 在预扫描校准步骤期间计算所需的延迟。

公开(公告)号：US5047871A

公开(公告)日：1991-09-10

申请号：US356027

申请日：1989-05-23

申请人： Gerald L. Meyer ,  David W. Boyd

发明人： Gerald L. Meyer ,  David W. Boyd

IPC分类号： G06T3/40 ,  H04N1/04 ,  H04N1/047 ,  H04N1/10 ,  H04N1/193

CPC分类号： H04N1/0411 ,  G06T3/40 ,  H04N1/0402 ,  H04N1/0443 ,  H04N1/0473 ,  H04N1/1013 ,  H04N1/193 ,  H04N2201/04755

摘要： The density of pixel samples across a document is determined by employing a constant scanner sensing head sampling rate and driving the scanner head movement at a rate directly correlated to the preselected density level. The scanner operator determines the particular density and introduces a signal to motor drive controls to cause it to move across the image at the preselected rate.

公开(公告)号：US4316152A

公开(公告)日：1982-02-16

申请号：US77980

申请日：1979-09-24

申请人： Gerald L. Meyer

发明人： Gerald L. Meyer

IPC分类号： H03L7/06 ,  H03L7/085 ,  H03L7/093 ,  H03L7/181 ,  H03L7/08

CPC分类号： H03L7/181

摘要： A counter of modulus n counts the oscillations of a variable frequency oscillator whose center frequency is n-times the nominal frequency of digital data having phase variations. The occurrence of a selected value of the count may be taken as a phase corrected clock for the digital data. Differences between successive values in the counter as pulses of the digital data occur indicate shifts in phase thereof, while the modularity prevents absent data pulses from contributing to the phase error. Successive counts are captured, made available as phase error information in digital form, and used to drive a digital-to-analog converter whose output controls the variable frequency oscillator.

摘要翻译： 模数n的计数器对可变频率振荡器的振荡进行计数，其中心频率是具有相位变化的数字数据的标称频率的n倍。 可以将计数的所选值的出现作为数字数据的相位校正时钟。 作为数字数据的脉冲的计数器中的连续值之间的差异表示其相位移动，而模块化防止没有数据脉冲对相位误差造成贡献。 连续计数被捕获，以数字形式作为相位误差信息提供，并用于驱动其输出控制可变频率振荡器的数模转换器。