Systems and methods for running priority-based application...

Details Systems and methods for running priority-based application... Systems and methods for running priority-based application...

2001-09-21

2009-10-06

Kuntz, Curtis (Department: 2614)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Digital audio data processing system

C381S119000, C710S056000, C710S060000

Reexamination Certificate

active

07599753

ABSTRACT:
Systems and methods for processing data from priority-based operating system threads within a realtime component are described. The component submits blank buffers to hardware. The component receives data from priority based operating system threads and processes and writes the data from within an independent second real-time thread to buffers before the buffers into which the data is written are used by the hardware. Hardware buffers are created offset from memory page boundaries such that the least significant bits of any memory address referencing the start of the buffer uniquely identify it and can be used as an index into a circular buffer queue to determine which buffer is currently being processed. Data is always processed and written into a buffer that is a predetermined range of buffers in front of the buffer currently being processed by the hardware.

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Bargen, Bradley and Peter Donnelly,“Inside DirectX”, 1998, Microsoft Press, pp. 203-266.

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