Victor H. S. Ha, S. Choi, J. Jeon, G. Lee, Won-Kap Jang, Woosung Shim
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引用次数: 6
摘要
韩国为向固定、移动、便携式接收器提供高质量的数字音频、视频、数据广播服务，制定了新的数字多媒体广播(DMB)国家标准。我们开发了世界上第一个DSP/FPGA实现的便携式DMB接收器，配有RF接收器，6.4英寸LCD显示器和音频/视频/数据解码器。在本文中，我们介绍了这种便携式DMB接收机的设计、实现和性能。首先，我们简要概述了DMB系统及其支持的音频/视频编码工具，即MPEG-4 BSAC和MPEG-4 Part 10 AVC/H.264。讨论了DMB接收机的低功耗高性能设计，重点讨论了音频/视频解码部分。最后，我们举例说明了在总频率为25 MHz时实时工作的便携式DMB接收器的性能。
Real-time audio/video decoders for digital multimedia broadcasting
A new national standard for digital multimedia broadcasting (DMB) has been drafted in Korea to provide high quality digital audio, video, and data broadcasting services to fixed, mobile, and portable receivers. We have developed the world's first DSP/FPGA implementation of the portable DMB receiver, complete with an RF receiver, a 6.4-inch LCD display, and audio/video/data decoders. In this paper, we present the design, implementation, and performance of this portable DMB receiver. First, we provide a brief overview of the DMB system and the audio/video coding tools supported by it, i.e., MPEG-4 BSAC and MPEG-4 Part 10 AVC/H.264. We discuss the low-power high-performance design of the DMB receiver, focusing particularly on the audio/video decoding parts. Finally, we illustrate the performance of the portable DMB receiver that operates in real-time at the overall frequency of 25 MHz.
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