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SYSTEM AND METHOD FOR OPTIMIZING POWER CONSUMPTION IN MULTIMEDIA SIGNAL PROCESSING IN MOBILE DEVICES
SYSTEM AND METHOD FOR OPTIMIZING POWER CONSUMPTION IN MULTIMEDIA SIGNAL PROCESSING IN MOBILE DEVICES
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机译:用于优化移动设备中多媒体信号处理的功耗的系统和方法
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摘要
The present invention provides a system and method for optimizing power consumption in Multimedia Signal Processing in mobile devices. The system comprises a Media (speech, audio, image, and video) codec encoder module, a Media codec decoder module (106) and pre-processing and postprocessing (filtering, deblocking filter, Analytics, person detect, keyword/keyframe spotting) modules modules. The pre-processing and post-processing modules are implemented on a DSPNLIW processor, while the Media encoder and decoder modules are implemented on a CPU with SIMD extensions. This pipeline (asynchronous RPC, non-blocking) implementation of modules in multi-core reduces current consumption in the SoC by up to 50 percent compared to an implementation of the modules in a multiple CPU/DSP/VLIW core with synchronous RPC (blocking). The significant reduction in current consumption of the modules enables reduction of power consumption in the Multimedia processing use case. Thus, the invention provides a simple method of optimizing power consumption by multi core implementation of the modules in real world use case using Multimedia Signal Processing in mobile devices.
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