Apparatus and method for MPEG decoding using dynamic...

Details Apparatus and method for MPEG decoding using dynamic... Apparatus and method for MPEG decoding using dynamic...

2005-09-13

2005-09-13

Diep, Nhon (Department: 2613)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

Reexamination Certificate

active

06944229

ABSTRACT:
There is provided an apparatus and method for MPEG decoding using dynamically varying voltage and frequency of a processor, wherein an operation frequency and voltage of the processor is set depending on a difference between the number of current frames and that of set frames, in correspondence with the interrupt generated during decoding frames until a next interrupt is generated, to thereby support a real-time decoding. The method herein includes the steps of predicting decoding time until the next interrupt from the current interrupt is generated depending on both a type and size of frames and the system speed.

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Tajana Simunic et al, “Dynamic Voltage Scaling and Power Management for Portable Systems”, DAC 2001, Jun.18-22, 2001.
Donghwan Son, Chansu Yu and Heung-Nam Kim, “Dynamic Voltage Scaling on MPEG Decoding”, Proceedings of the Eigth International Conference on Parallel and Distributed Systems, pp. 633-640, Jun. 26-29, 2001, Kyongju City, Korea.
Trevor Pering, Tom Burd, Rober Brodersen, “The Simulation and Evaluation of Dynamic Voltage Scaling Algorithms”, Proceedings 1998 International Symposium on Low Power Electronics and Design, pp. 76-81, Aug. 10-12, 1998, Monterey, California, United States.

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