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1. 发明授权

US07107590B2 Method of and system for determining a best-case response time of a periodic task 失效
标题翻译：用于确定周期性任务的最佳情况响应时间的方法和系统
公开(公告)号：US07107590B2
公开(公告)日：2006-09-12
申请号：US10008195
申请日：2001-11-08
申请人： Reinder Jaap Bril , Elisabeth Francisca Maria Steffens
发明人： Reinder Jaap Bril , Elisabeth Francisca Maria Steffens
IPC分类号： G06F9/44 , G06F9/46
CPC分类号： G06F9/4887
摘要： A method of determining a best-case response time of a first periodic task, the method comprising a first step based upon Rate Monotonic Analysis of determining the priorities of the tasks that have to be scheduled on a system. In order to determine whether the set of tasks can be scheduled on the system, the best-vase response time in addition to the worst-case response time is determined per task. This best-case response time is substantially equal to the difference between the start of a task with a lower priority and the completion of this low priority task, the start being right after the release of the low priority task and the completion coinciding with the simultaneous release all higher priority tasks.
摘要翻译：一种确定第一周期性任务的最佳情况响应时间的方法，所述方法包括基于速率单调分析的确定必须在系统上调度的任务的优先级的第一步骤。为了确定是否可以在系统上调度任务集，除了最坏情况的响应时间之外，还可以确定每个任务的最佳花瓶响应时间。这种最佳情况的响应时间基本上等于具有较低优先级的任务的开始与该低优先级任务的完成之间的差异，该开始恰好在低优先级任务的释放之后，并且完成与同时释放所有更高优先级的任务。

2. 发明授权

US07058951B2 Method and a system for allocation of a budget to a task 有权
标题翻译：方法和为任务分配预算的系统
公开(公告)号：US07058951B2
公开(公告)日：2006-06-06
申请号：US10169346
申请日：2001-11-02
申请人： Reinder Jaap Bril , Elisabeth Francisca Maria Steffens , Christian Hentschel , Maria Gabrani , Cornelis Conradus Adrianus Maria Van Zon
发明人： Reinder Jaap Bril , Elisabeth Francisca Maria Steffens , Christian Hentschel , Maria Gabrani , Cornelis Conradus Adrianus Maria Van Zon
IPC分类号： G06F9/46
CPC分类号： G06F9/4881
摘要： In consumer devices, like digital television sets or set-top boxes, there can be a problem with a sudden load increase caused by for example a scene change and user focus. During such a load increase, the quality of service of the application having the user focus will decrease until the device detects the load increase. The device can reallocate resources to the application having the user focus after which the quality of service will increase again towards its previous level. However, the user may have noticed the quality decrease. In order to prevent this noticeable decrease of quality in overload situations, a method and a system are provided that guarantees a worst-case budget to the application having user focus and conditionally guarantees a budget surplus to an application not having the user focus. The latter application can then use that budget surplus to operate at a higher quality of service level.
摘要翻译：在诸如数字电视机或机顶盒的消费者设备中，由于例如场景改变和用户焦点引起的突然的负载增加可能存在问题。在这样的负载增加期间，具有用户聚焦的应用的服务质量将降低，直到设备检测到负载增加。该设备可以将资源重新分配给具有用户焦点的应用，之后服务质量将再次增加到其先前的水平。然而，用户可能已经注意到质量下降。为了防止在过载情况下质量明显下降，提供了一种方法和系统，其保证对具有用户重点的应用的最坏情况预算，并有条件地保证对不具有用户焦点的应用的预算盈余。后一种应用可以使用这种预算盈余在更高的服务质量水平上运行。

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