J4 ›› 2009, Vol. 27 ›› Issue (01): 56-.

• 论文 • 上一篇    下一篇

嵌入式多媒体通信终端中文字交互功能的实现

王雅辉,迟学芬, 祝宇鸿, 吴伟刚, 刘 聪   

  1. 吉林大学 通信工程学院,长春 130012
  • 出版日期:2009-01-20 发布日期:2009-07-02
  • 通讯作者: 王雅辉(1985— ),女,河北唐山人,吉林大学硕士研究生,主要从事宽带多媒体通信系统研究 E-mail:yahui2008@gmail.com
  • 作者简介:迟学芬(1962— ),女,长春人|吉林大学教授,博士|硕士生导师,主要从事多媒体通信技术研究|(Tel)86-431-85152811(E-mail)chixuefen@gmail.com. 王雅辉(1985— )|女|河北唐山人|吉林大学硕士研究生|主要从事宽带多媒体通信系统研究,(Tel)86-13844812409(E-mail)yahui2008@gmail.com
  • 基金资助:

    吉林省科技发展计划基金资助项目(20060327)

Implementation of Interactive Function with Chinese Characters in Embedded Multimedia Communication Terminals Based on DSP

WANG Ya-hui, CHI Xue-fen, ZHU Yu-hong, WU Wei-gang, LIU Cong   

  1. College of Communication Engineering,Jilin University,Changchun 130012,China
  • Online:2009-01-20 Published:2009-07-02

摘要:

为解决嵌入式DSP(Digital Signal Processing)视频通信系统无法处理中文信息的问题,提出了嵌入式IP多媒体通信系统中文字交互功能的设计与实现方法, 给出硬件、软件设计方案,软件处理技术以及在嵌入式平台上实现多线程同步的方法。在嵌入式多媒体通信终端中建立了小型汉字库,通过I2C(Inter-Integrated Circuit)总线方式读取键盘输入,采用T9拼音输入法编写文字。在保证实时音视频通信的同时,实现了IP网络上的快捷双向文字通信功能。

关键词: TMS320DM642芯片, T9输入法, 键盘, I2C总线, ZLG7290芯片

Abstract:

To resolve the problem of processing Chinese language in embedded DSP(Digital Signal Processing) real\|time video communication system, the design and implementation methods of message (in Chinese language) exchanging function were proposed in embedded IP multimedia communications system. Hardware design and software solution are given. Software processing technologies are discussed in detail. The method of multi-thread synchronization on the embedded platform is proposed. A compact Chinese Library is implemented in the embedded multimedia communication terminal device. Keyboard input is read through the I2C(Inter-Integrated Circuit) bus and edited into Chinese words using T9 pinyin processing tool. While guaranteeing real\|time audio and video communications, it also provides bidirectional speedy message (in Chinese language) exchanging function.

Key words: TMS320DM642 chip, T9 input method, keyboard, I2C bus, ZLG7290 chip

中图分类号: 

  • TP391