1片低功耗MPEG1编解码器与紧凑的运动估计

ISCE '97. Proceedings of 1997 IEEE International Symposium on Consumer Electronics (Cat. No.97TH8348) Pub Date : 1997-12-02 DOI:10.1109/ISCE.1997.658380

H. Ohtsubo, T. Fujihira, K. Asada, T. Imaide

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引用次数: 0

摘要

我们开发了一种低功耗MPEG1/JPEG编解码单芯片LSI(编解码器)。在编解码器的开发上，我们开发了一种新的紧凑型运动估计(ME)方法，在保证图像质量的前提下，将门数和功耗分别减少到传统ME方法的1/ 4和1/8左右。通过在编解码器芯片上采用新的ME工艺和电源管理功能，实现了编解码器的低功耗。编解码器的总功耗仅为500mw。通过这个芯片，我们还实现了世界上第一个具有MPEG1流的数码相机。

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1 chip low power MPEG1 codec with compact motion estimation

We have developed a low power MPEG1/JPEG encode/decode single chip LSI (codec). On the development of the codec, we have developed a new compact motion estimation (ME) process which reduced the number of gates and the power consumption to about a quarter and 1/8 of those of the conventional ME process respectively, while keeping good quality of picture. With the new ME process and power management function all over the codec chip, we realized the low power consumption of the codec. Total power consumption of the codec is only 500 mW. With this chip, we have also realized the first digital camera with an MPEG1 stream in the world.

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ISCE '97. Proceedings of 1997 IEEE International Symposium on Consumer Electronics (Cat. No.97TH8348)

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