Quantifying circuit performance
    1.
    发明授权
    Quantifying circuit performance 失效
    量化电路性能

    公开(公告)号:US5878383A

    公开(公告)日:1999-03-02

    申请号:US739358

    申请日:1996-10-29

    摘要: The invention relates to automated testing of equipment items of the electronic, electrical, and optical type over a range of environmental conditions. A testing apparatus operates to vary an operating environment of an item of test equipment between a lower extreme and an upper extreme, and iteratively searches each test parameter for a peak response. The peak response is compared with a response limit specified in a customer specification or an international standard. The apparatus assesses a design robustness of the equipment item by comparing a set of measured responses with a maximum range of responses specified in the customer specification or international standard. The apparatus produces a data output for each performance parameter tested, identifying performance parameters which are outside the customer specification, or which have insufficient design robustness.

    摘要翻译: 本发明涉及在一系列环境条件下电子,电和光学类型的设备项目的自动测试。 测试装置操作以在下极限和上极限之间改变测试设备的操作环境,并迭代地搜索每个测试参数以获得峰值响应。 将峰值响应与客户规范或国际标准中规定的响应限制进行比较。 该装置通过将一组测量响应与客户规范或国际标准中指定的最大响应范围进行比较来评估设备项目的设计鲁棒性。 该设备为测试的每个性能参数产生数据输出,识别在客户规格之外的性能参数,或者具有不足的设计鲁棒性。

    Predicting values of a series of data
    2.
    发明授权
    Predicting values of a series of data 失效
    预测一系列数据的值

    公开(公告)号:US06731990B1

    公开(公告)日:2004-05-04

    申请号:US09493167

    申请日:2000-01-27

    IPC分类号: G05B1302

    CPC分类号: G05B13/026

    摘要: Communications data such as traffic levels in a communications network is analysed using techniques adapted from the study of chaos. Future values of a series of communications data are predicted and an attractor structure is determined from the communications data. This enables the communications processes to be monitored, controlled and analysed. Action can be taken to modify the communications process using the results from the prediction and attractor structure to reduce costs and improve performance and efficiency. These methods may also be used for product data from manufacturing processes. An algorithm bank is compiled containing prediction algorithms suitable for different types of data series, including those exhibiting deterministic behaviour and those exhibiting stochastic behaviour. Recent past values of a data series are taken and assessed or audited in order to determine which of the algorithms in the bank would provide the optimal prediction. The selected algorithm is then used to predict future values of the data series. The assessment or auditing process is carried out in real time and a prediction algorithm selected using a “smart switch” such that different algorithms are used for different stages in a given series as required. This enables good prediction of data series which change in nature over time to be obtained.

    摘要翻译: 使用从混沌研究中改进的技术来分析诸如通信网络中的通信量的通信数据。 预测一系列通信数据的未来值,并根据通信数据确定吸引子结构。 这使得能够监测,控制和分析通信过程。 可以采取行动来修改通信过程,使用预测和吸引器结构的结果来降低成本,提高性能和效率。 这些方法也可用于来自制造过程的产品数据。 编译了一种包含适用于不同类型数据系列的预测算法的算法库,其中包括具有确定性行为的那些数据系列和表现随机行为的算法库。 数据系列的最近的价值被采纳和评估或审计,以便确定银行中哪些算法将提供最佳预测。 然后使用所选择的算法来预测数据序列的未来值。 评估或审核过程是实时执行的,并且使用“智能开关”选择的预测算法,使得根据需要在给定系列中的不同阶段使用不同的算法。 这使得能够很好地预测随时间变化的数据序列。

    Dynamic prediction for process control
    3.
    发明授权
    Dynamic prediction for process control 有权
    过程控制的动态预测

    公开(公告)号:US06370437B1

    公开(公告)日:2002-04-09

    申请号:US09243303

    申请日:1999-02-02

    IPC分类号: G05B1302

    CPC分类号: G05B5/01 G05B13/026

    摘要: Product data from a manufacturing process is analysed using techniques adapted from the study of chaos. Future values of a series of product data are predicted and an attractor structure is determined from the product data. This enables the manufacturing process to be monitored, controlled and analysed. Action can be taken to modify the manufacturing process using the results from the prediction and attractor structure to reduce costs and improve performance and efficiency.

    摘要翻译: 使用从混沌研究中改进的技术分析来自制造过程的产品数据。 预测一系列产品数据的未来值,并从产品数据确定吸引子结构。 这使得可以监控,控制和分析制造过程。 可以采取行动来修改制造过程,使用预测和吸引器结构的结果来降低成本,提高性能和效率。

    Quantifying circuit performance
    4.
    发明授权

    公开(公告)号:US5819208A

    公开(公告)日:1998-10-06

    申请号:US739359

    申请日:1996-10-29

    摘要: The invention relates to automated testing of equipment items of the electronic, electrical, and optical type over a range of environmental conditions. A testing apparatus operates to vary an operating environment of an item of test equipment between a lower extreme and an upper extreme, and iteratively searches each test parameter for a peak response. The peak response is compared with a response limit specified in a customer specification or an international standard. The apparatus assesses a design robustness of the equipment item by comparing a set of measured responses with a maximum range of responses specified in the customer specification or international standard. The apparatus produces a data output for each performance parameter tested, identifying performance parameters which are outside the customer specification, or which have insufficient design robustness.