| 嵌入式多媒体通信终端中文字交互功能的实现 |
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| 引用本文： | 王雅辉,迟学芬,祝宇鸿,吴伟刚,刘聪.嵌入式多媒体通信终端中文字交互功能的实现[J].吉林大学学报(信息科学版),2009,27(1):56. |
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| 作者姓名： | 王雅辉 迟学芬 祝宇鸿 吴伟刚 刘聪 |
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| 作者单位： | 吉林大学 通信工程学院,长春 130012 |
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| 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。
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| 关 键 词： | TMS320DM642芯片 T9输入法 键盘 I2C总线 ZLG7290芯片 |
Implementation of Interactive Function with Chinese Characters in Embedded Multimedia Communication Terminals Based on DSP |
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| WANG Ya-hui,CHI Xue-fen,ZHU Yu-hong,WU Wei-gang,LIU Cong.Implementation of Interactive Function with Chinese Characters in Embedded Multimedia Communication Terminals Based on DSP[J].Journal of Jilin University:Information Sci Ed,2009,27(1):56. |
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| Authors: | WANG Ya-hui CHI Xue-fen ZHU Yu-hong WU Wei-gang LIU Cong |
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| Institution: | College of Communication Engineering,Jilin University,Changchun 130012,China |
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| 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 ... |
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| Keywords: | TMS320DM642 chip T9 input method keyboard I2C bus ZLG7290 chip |
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