Koninklijke Philips Corporation N.v.

Interuniversitair Microelektronica Centrum (Imec)

Reinder Jaap Bril

Elisabeth Francisca Maria Steffens

Maria Gabrani

Cornelis Conradus Adrianus Maria Van Zon

Christian Hentschel

Gauthier Lafruit

Elisabeth F M Steffens

One embodiment includes a method for operating a terminal having at least one resource. The terminal is configured to execute at least one application in real-time. The execution of the application requires execution of at least two tasks. The method comprises selecting operating points for each of the tasks from a predetermined set without knowing all implementation details. The method further comprises determining at least one implementation parameter for the selected quality-resource utilization operating point, wherein the determining is performed for each of the tasks, and wherein the determined implementation parameter is different than the quality and resource utilization, and executing the tasks with their determined implementation parameter.

Method for operating a real-time multimedia terminal in a QoS manner

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.

Method of and system for determining a best-case response time of a periodic task

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.

Method and a system for allocation of a budget to a task

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Eindhoven, Netherlands

Reinder Jaap Bril