A low power chipset for portable multimedia applications
A low power chipset for portable multimedia applications
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适用于便携式多媒体应用的低功耗芯片组
DOI：
10.1109/isscc.1994.344718
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
R. Brodersen
中科院分区：
文献类型：
--
作者：
A. Chandrakasan;A. Burstein;R. Brodersen
未来的终端将允许用户不受限制地访问通过高带宽网络主干互连的多媒体信息服务器。本文描述了用于此类终端的芯片组，用于在无线上行链路上将用户的音频和笔输入传输到网络，并在下行链路上从骨干网接收音频、文本/图形和压缩视频。便携性要求导致主要设计重点是降低功耗。六个芯片提供高速数字无线电调制解调器和商业语音编解码器、笔输入电路以及用于文本/图形和全动态视频显示的 LCD 面板之间的接口。该芯片以低于 5 mW 的功耗提供协议转换、同步、纠错、打包、缓冲、视频解压缩和 D/A 转换。<<ETX>>
Future terminals will allow users untethered access to multimedia information servers that are interconnected through high-bandwidth network backbones. This paper describes a chipset for such a terminal, to transmit audio and pen input from the user to the network on a wireless uplink and to receive audio, text/graphics and compressed video from the backbone on the down link. The portability requirement results in the primary design focus on power reduction. Six chips provide the interface between a high-speed digital radio modem and a commercial speech codec, pen input circuitry, and LCD panels for text/graphics and full-motion video display. The chips provide protocol conversion, synchronization, error correction, packetization, buffering, video decompression, and D/A conversion at power consumption less than 5 mW.<<ETX>>