analysis for DRM and WMA. about the cost of decoding time and memroy.

本文介绍了TCM技术背景，研究了TCM编码和译码的方法，讨论了TCM编码增益的来源，阐述了TCM的发展前景，并指出了周联合优化思想进行通信系统设计的重要性。-This article describes the the TCM technical background, the of TCM coding and decoding methods, sources of TCM coding gain on the prospects for the development of TCM, an

本文介绍的八路数显无线遥控抢答器，它由8个发射器和1个接收器组成，可用于8组或8组以下的智力竞赛中。本设计使用到的元器件包括：8051芯片、数码LED显示器、七段LED数码管的译码。-This article describes the significant number eight wireless remote Responder, which consists of eight transmitter and a receiver components can be used for e