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公开(公告)号:US20090019333A1
公开(公告)日:2009-01-15
申请号:US12216229
申请日:2008-07-01
申请人: Paul McEvoy , Jakub Wenus , Ted Hurley
发明人: Paul McEvoy , Jakub Wenus , Ted Hurley
CPC分类号: H03M13/116 , H03M13/033 , H03M13/1102 , H03M13/6527
摘要: Circuits perform row-by-row matrix generation for encoding and decoding of data blocks. They perform fast algebraic generation of high performance low density parity check (LDPC) matrices suitable for use in a wide range of error correction coding and decoding (ECC) applications. Circuit operation is based on a mathematical Cyclic Ring method that enables matrices of any size to be generated from a simple set of initial parameters, based on user-defined performance requirements. The main steps for generating a parity check matrix (H) are selection of an RG matrix structure, selection of Group Ring elements, generating the sub matrices for the RG matrix by a row filling scheme, generating the RG matrix by a cyclic arrangement of the sub matrices, and generating the parity-check matrix by deleting suitably chosen columns from the RG matrix to achieve the desired performance and then transposing the matrix. A circuit performs data encoding or decoding by receiving initial vectors calculated from row vectors of a previously-generated parity check matrix H, cyclic shifting the vectors to generate a desired output row of the parity check matrix H, re-arranging the operation order of the vectors depending on the RG matrix structure and the chosen row, operating on the vectors on information to be encoded.
摘要翻译: 电路执行逐行矩阵生成,用于对数据块进行编码和解码。 它们执行快速代数生成适用于宽范围纠错编码和解码(ECC)应用的高性能低密度奇偶校验(LDPC)矩阵。 电路操作基于一种数学循环环法,可以根据用户定义的性能要求,从一组简单的初始参数生成任意大小的矩阵。 用于生成奇偶校验矩阵(H)的主要步骤是选择RG矩阵结构,选择组环元素,通过行填充方案生成RG矩阵的子矩阵,通过循环布置生成RG矩阵 子矩阵,并且通过从RG矩阵中删除适当选择的列来产生奇偶校验矩阵,以实现期望的性能,然后转置矩阵。 电路通过接收从先前生成的奇偶校验矩阵H的行向量计算的初始向量来执行数据编码或解码,循环移位向量以生成奇偶校验矩阵H的期望输出行,重新布置 取决于RG矩阵结构和所选行的向量,对要编码的信息的向量进行操作。
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公开(公告)号:US20100251438A1
公开(公告)日:2010-09-30
申请号:US12725013
申请日:2010-03-16
申请人: Heinrich Huber , Heiko Dussmann , Paul Perrine , Jakub Wenus , Dimitrios Kalamatianos , Maximilian Wuerstle
发明人: Heinrich Huber , Heiko Dussmann , Paul Perrine , Jakub Wenus , Dimitrios Kalamatianos , Maximilian Wuerstle
IPC分类号: G01Q10/02
CPC分类号: G02B21/365 , G01N15/1475 , G02B21/008
摘要: A method for controlling laser scanning microscopy of a probe comprising at least one cell is disclosed. The method comprises the steps of acquiring at least one initial image of the probe and identifying at least one cell within an initial probe image. Using a pre-defined grammar, a first set of scanning mode parameters for monitoring the cell(s); a first set of trigger parameters including at least one physiological parameter defining an event in the cell(s); and a second set of scanning mode parameters for monitoring at least one cell of the probe after an occurrence of the event is defined. A successive set of probe images acquired according to the first set of scanning mode parameters is provided and processed to determine if the event has occurred. Responsive to the event occurring, microscope modality is changed to the second set of scanning mode parameters.
摘要翻译: 公开了一种用于控制包括至少一个电池的探针的激光扫描显微镜的方法。 该方法包括获取探针的至少一个初始图像并识别初始探针图像内的至少一个单元的步骤。 使用预定义的语法,用于监视单元的第一组扫描模式参数; 包括定义细胞中的事件的至少一个生理参数的第一组触发参数; 以及第二组扫描模式参数,用于在发生事件之后监视探测器的至少一个单元。 提供并处理根据第一组扫描模式参数获取的连续的探测图像组,以确定事件是否已经发生。 响应于发生的事件,显微镜模态改为第二组扫描模式参数。
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公开(公告)号:US20210216039A1
公开(公告)日:2021-07-15
申请号:US17213982
申请日:2021-03-26
摘要: Digital holographic microscopy and related image processing techniques are described. A hologram captured in an image frame is split into different depths while a new hologram is being captured. Image slices of the hologram are determined and using free space impulse responses that are pre-calculated at a different precision than processing operations using the holographic data. Each computation is calculated in parallel based on the number of available processing cores and threads. The image slices are combined into a 2D array or 3D array to permit further processing of the combined array to count and size particles in the image frame. The reconstructed hologram is displayed at a subsequent image frame than that used to capture the hologram.
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