公开(公告)号：US5663799A

公开(公告)日：1997-09-02

申请号：US590495

申请日：1996-01-24

申请人： Alastair D. McAulay ,  Junqing Wang

发明人： Alastair D. McAulay ,  Junqing Wang

IPC分类号： G01N21/956 ,  G01B11/00 ,  G01N21/00

CPC分类号： G01N21/95684

摘要： A technique for detecting damage of leads arranged in a generally parallel periodic pattern, includes the following steps: directing a coherent light beam at a plurality of adjacent leads; detecting an image at a distance from the leads at which the light beam would form a diffraction image having substantially uniform intensity when the leads form a substantially uniform pattern; moving the pattern of leads and the light beam with respect to each other; and detecting damage of leads from variation in intensity of the detected image.

摘要翻译： 用于检测以大致平行的周期性图案布置的引线的损坏的技术包括以下步骤：将相干光束引导到多个相邻引线; 当引线形成基本上均匀的图案时，检测距离引线一段距离处的图像，在该距离处光束将形成具有基本均匀的强度的衍射图像; 将引线和光束相对于彼此移动; 并检测引线的检测图像强度变化的损伤。

公开(公告)号：US4851840A

公开(公告)日：1989-07-25

申请号：US141934

申请日：1988-01-06

申请人： Alastair D. McAulay

发明人： Alastair D. McAulay

IPC分类号： G02F7/00

CPC分类号： G02F7/00

摘要： An analog to digital converter, adapted to convert an optical analog signal to an equivalent optical digital signal being one of x optically presented digital numbers defined by an n-bit digital word, where X=2.sup.n. The optical analog signal is light having an intensity variable over a range from a minimum to a maximum value. The analog to digital converter comprises a linear array of comparator means, a linear array of logic means, and a linear array of decoding means. The linear array of comparator means is responsive to the light at a plurality of input positions, x, and produces binary threshold signals which respresent a one-dimensional spacial reference having a length of corresponding to the magnitude of the sensed intensity. The linear array of logic means is responsive to the binary threshold signals and produces an optical index signal which is a one-point spacial reference having a location, an index postion, corresponding to the length of the one-dimensional spacial reference. The linear array of decoding means is responsive to the optical index signal and projects the digital number corresponding to the sensed intensity as the optical digital signal in response to being illuminated by the optical index signal.

摘要翻译： 一种模拟数字转换器，适于将光学模拟信号转换为由n位数字字定义的x个光学呈现的数字数字之一的等效光学数字信号，其中X = 2n。 光学模拟信号是具有从最小值到最大值的范围内的强度变化的光。 模数转换器包括比较器装置的线性阵列，逻辑装置的线性阵列和解码装置的线性阵列。 比较器装置的线性阵列响应于多个输入位置x处的光，并且产生二值阈值信号，其表示具有对应于感测强度的大小的长度的一维空间参考。 逻辑装置的线性阵列响应于二进制阈值信号并产生光学索引信号，该光学索引信号是具有对应于一维空间参考的长度的位置（索引位置）的一点空间参考。 解码装置的线性阵列响应于光学索引信号，并且响应于被光学索引信号照亮，将对应于感测强度的数字数据投射为光学数字信号。

公开(公告)号：US5050117A

公开(公告)日：1991-09-17

申请号：US475727

申请日：1990-02-06

申请人： Alastair D. McAulay

发明人： Alastair D. McAulay

IPC分类号： G06E1/04

CPC分类号： G06E1/04

摘要： Optical computing cells or logic cells are constructed of two or more spatial light rebroadcasters (SLR's). Data or information images in the form of light are written into and read from the SLR's with the SLR's being controlled to process the data in a desired manner. The logic cells can be used generally to construct optical computers and are particularly adapted to the construction of optical subsystems for a digital optical computer. In addition, the logic cells can be used for performing masking, interface, intermediate storage and other operations within an optical computer. Cells made up of only SLR's can be used directly for many applications. The cells also can be modified by the internal or external addition of other optical elements for routing light between or among SLR's of the cells, processing and/or blocking light as the light passes between SLR's of the cells. Such modifications and adaptations complement cells made up only of SLR's to form a family of optical logic cells.

摘要翻译： 光学计算单元或逻辑单元由两个或更多个空间光转播器（SLR）构成。 以SLR形式将数据或信息图像写入SLR，并以SLR进行控制，以期望的方式处理数据。 逻辑单元通常可用于构造光学计算机，并且特别适用于数字光学计算机的光学子系统的构造。 此外，逻辑单元可用于在光学计算机内执行掩蔽，接口，中间存储和其他操作。 仅由SLR组成的单元可以直接用于许多应用。 还可以通过内部或外部添加其他光学元件来修改单元，用于在单元的SLR之间或SLR之间路由光，当光通过单元的单反相机时，处理和/或阻挡光。 这样的修改和适应补充了仅由SLR组成的单元，以形成光逻辑单元族。

公开(公告)号：US4686532A

公开(公告)日：1987-08-11

申请号：US739932

申请日：1985-05-31

申请人： Alastair D. McAulay

发明人： Alastair D. McAulay

IPC分类号： G01S7/295 ,  G01S13/522 ,  G01S13/89 ,  G01S15/89 ,  G01S7/44

CPC分类号： G01S15/89 ,  G01S13/522 ,  G01S13/89 ,  G01S7/295

摘要： A sonar or radar permits primary distributed scatterers that are close to the sonar or radar relative to the array dimension to be rapidly and accurately located and pertinent characteristics to be estimated, such as Doppler and complex scattering strength. The region viewed is partitioned in annuli instead of in angular pie shaped slices as is normally the case for conventional sonar. This avoids the difficulty with conventional sonar or radar of distinguishing whether a scatterer is in a side lobe or the main beam an dis preferable to conventional sonars or radars in the important case of approaching multiple scatterers, e.g. robotic vehicle sensors or torpedo terminal homing on a target, because near regions may be examined in all directions prior to further regions. Computational speed is achieved by utilizing precomputation and leaving only part of the computation to be performed in real time.

摘要翻译： 声纳或雷达允许相对于阵列尺寸靠近声纳或雷达的主要分布散射体被快速且准确地定位并且要估计的相关特性，例如多普勒和复散射强度。 所观察的区域以环形分隔，而不是像通常为常规声纳的情况下的角馅饼状切片。 这避免了在接近多个散射体的重要情况下，常规声纳或雷达难以区分散射体是在旁瓣还是主梁，对于传统的声纳或雷达来说是不利的。 机器人车辆传感器或鱼雷终端在目标上归位，因为在进一步的区域之前可以在所有方向检查近地区。 计算速度是通过利用预先计算来实现的，并且只剩下部分计算被实时执行。

公开(公告)号：US5285411A

公开(公告)日：1994-02-08

申请号：US716098

申请日：1991-06-17

申请人： Alastair D. McAulay

发明人： Alastair D. McAulay

IPC分类号： G11C13/04 ,  G11C15/00

CPC分类号： G11C15/00 ,  G11C13/04

摘要： A method and apparatus operate an optical memory to perform bit-slice associative memory operations by storing a plurality of keywords to define a keyword database and accessing the database by means of one of the keywords. Preferably, the plurality of keywords are unique and are used to retrieve data which corresponds individually to the keywords. Operation of the memory is by identification of a keyword, the location of which is to be determined within the memory, for example for data retrieval. The identified keyword is then used effectively as a retrieval mask to access the plurality of keywords. The keyword database and its complement are stored in an optical device with the keyword to be retrieved and its complement being stored in recall optical devices. The keyword database or its complement is repetitively swept by shifting output columnar vectors by one bit position until all bit positions have been swept. Only identical keywords stored in the memory will result in light output during the last sweep with the light output identifying the row or rows which contain the keyword to be retrieved. The optical paths can be reduced and/or the use of complements can be eliminated by means of dual-rail coding and polarization techniques.

摘要翻译： 一种方法和装置操作光学存储器以通过存储多个关键词来定义关键字数据库并通过其中一个关键字访问数据库来执行比特片相关存储器操作。 优选地，多个关键字是唯一的，并且用于检索与关键字单独对应的数据。 存储器的操作是通过识别要在存储器内确定位置的关键字，例如用于数据检索。 然后，将所识别的关键字有效地用作检索掩码以访问多个关键字。 关键字数据库及其补码存储在要被检索的关键字的光学设备中，并且其补码存储在调用光学设备中。 关键字数据库或其补码通过将输出柱状向量移位一位位置直到所有位位置被扫描重复扫描。 存储在存储器中的相同关键字将导致上次扫描期间的光输出，光输出标识包含要检索的关键字的行或行。 可以通过双轨编码和偏振技术来减少光路和/或补充物的使用。

公开(公告)号：US4811210A

公开(公告)日：1989-03-07

申请号：US901868

申请日：1986-08-29

申请人： Alastair D. McAulay

发明人： Alastair D. McAulay

IPC分类号： G06E1/02 ,  G06F15/80 ,  G06F17/14 ,  G06F17/15 ,  G06F17/16 ,  G10L15/00 ,  G10L15/12 ,  G06F7/56

CPC分类号： G10L15/12 ,  G06E1/02 ,  G06F15/8015 ,  G06F17/142 ,  G06F17/15 ,  G06F17/16 ,  G10L15/00

摘要： A computer (30) has parallel elementary processors (P1, . . . , PK) interconnected by an optical crossbar switch (32). Multiple groups of processors, each having a separate crossbar switch, are connected by exchange switches. Optical fibers (34) are used to provide high speed communication between the processors and the switch (32). The optical crossbar switch (32) is reconfigurable dynamically. The computer is reconfigurable to provide efficient implementations of signal processing and logical inference computations, including a systolic filter, a fast Fourier transform, a correlator and a matrix-vector multiplier, forward and backward chaining inference machine, and speech recognizer.

摘要翻译： 计算机（30）具有通过光学交叉开关（32）互连的并行基本处理器（P1，...，PK）。 每组具有单独的交叉开关的处理器组由交换开关连接。 光纤（34）用于提供处理器和开关（32）之间的高速通信。 光学交叉开关（32）可动态地重新配置。 计算机可重构以提供信号处理和逻辑推理计算的有效实现，包括收缩滤波器，快速傅里叶变换，相关器和矩阵向量乘法器，前向和后向链接推理机和语音识别器。