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    • 4. 发明申请
    • Ocular imaging
    • 眼部成像
    • US20080088795A1
    • 2008-04-17
    • US11786514
    • 2007-04-11
    • Lee GoldsteinNorman FordLeo ChylackPaul HartungMarc FriedmanEvan SherrStephen Fantone
    • Lee GoldsteinNorman FordLeo ChylackPaul HartungMarc FriedmanEvan SherrStephen Fantone
    • A61B3/14
    • A61B3/14A61B3/117
    • A system for performing quasi-elastic light scattering and fluorescent ligand scanning on a subject's eye includes a light source configured to transmit light toward the subject's eye, a lens configured to focus light sent from the source and scattered by the subject's eye, a measurement reflector disposed to receive at least a portion of the focused light and configured to reflect a first portion of the received light, a camera configured and disposed to receive the first portion of the received light and configured to provide indicia of an image corresponding to the first portion of the received light, and a processor coupled to the camera and configured to analyze intensities of light in the image to determine a location of a reference point corresponding to an interface of a portion of the eye.
    • 用于在受试者的眼睛上执行准弹性光散射和荧光配体扫描的系统包括:被配置为朝向被检者的眼睛透射光的光源;被配置为聚焦从源发射并被受检者眼睛散射的光的透镜;测量反射器 被配置为接收聚焦光的至少一部分并且被配置为反射接收到的光的第一部分;配置和设置成接收所接收的光的第一部分并被配置为提供对应于第一部分的图像的标记的照相机 以及耦合到相机并被配置为分析图像中的光的强度以确定与眼睛的一部分的界面相对应的参考点的位置的处理器。
    • 7. 发明申请
    • System and method for an asynchronous queue in a database management system
    • 数据库管理系统中异步队列的系统和方法
    • US20060294058A1
    • 2006-12-28
    • US11169064
    • 2005-06-28
    • Peter ZabbackConor CunninghamKeith ElmoreMarc Friedman
    • Peter ZabbackConor CunninghamKeith ElmoreMarc Friedman
    • G06F17/30
    • G06F16/2462G06F16/217
    • A method for performing asynchronous statistics updates in a database management system includes receiving a first query against the database, determining if present statistics related to the first query are stale and entering on a queue a request to acquire updated statistics if the present statistics are stale. The queue jobs are executed asynchronously with respect to the query request. As a result, a first query plan may be developed using the present statistics related to the first query. Thus, no delay in processing the query due to statistics updates is incurred. The first query plan may be executed and results given to the requester. At some later time, the request to acquire updated statistics related to the first query is processed asynchronously from the query request. If subsequent queries are received, the queue can delete duplicate requests to update the same statistics. Those subsequent queries can benefit from the updated statistics.
    • 用于在数据库管理系统中执行异步统计更新的方法包括:接收针对数据库的第一查询,确定与第一查询相关的当前统计信息是否过时,如果当前统计信息过时,则在队列中输入获取更新的统计信息的请求。 队列作业相对于查询请求异步执行。 因此,可以使用与第一查询相关的当前统计数据来开发第一查询计划。 因此,由于统计信息更新而导致处理查询的延迟不会发生。 可以执行第一个查询计划并将结果提供给请求者。 在稍后的时间,获取与第一个查询相关的更新统计信息的请求将从查询请求异步处理。 如果接收到后续查询,队列可以删除重复的请求以更新相同的统计信息。 这些后续查询可以从更新的统计数据中受益。