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嵌入式系统中汉字的数字输入技术研究

Chinese Input Technique Research Based on Chinese Character’s Orders of Strokes

【作者】 吕继兴

【导师】 蒋文科;

【作者基本信息】 河北农业大学 , 农业机械化工程, 2003, 硕士

【摘要】 随着社会信息化进程的加快,移动通信领域的发展也呈现出日新月异的景象。中国作为移动通信设备拥有量的大国,也是移动通信设备制造的强国,因此对于移动通信设备上中文信息处理能力的要求是相当高的。当前在移动通信设备上应用的操作系统主要有Windows CE、Plam和EPOC等。Windows CE是Microsoft公司在移动通信领域推出的嵌入式操作系统,该操作系统具有强大的联网能力、强劲的实时性和小内存体积占用以及丰富的多媒体和Web浏览功能,这使得此操作系统可在各种小型嵌入式系统中使用,且因其功能强大,在工业控制领域中的应用有着非常广阔的前景。但是此嵌入式操作系统在中文信息输入方面只是集成了汉字的手写输入,而对于应用更为广泛的键盘输入则没有提供。本文就根据移动通信设备上常见的数字键盘,为Windows CE嵌入式操作系统在汉字的数字键盘输入技术及其实现方面作了必要的研究;并使用了一种在查找时空间复杂度为O(n)、时间复杂度为O(n)的树形结构来存储中文信息,使用这种存储技术作为码表内存存放方式的汉字输入法具有输入速度快、占用空间少的优点。为了加快汉字的输入速度,根据常用汉字优先选择的原则,对常用的汉字频率作了统计,并且按照在相同编码下汉字频率的由高到低的顺序来显示汉字。最后提出了在嵌入式系统中与汉字使用频率结合的方法,共同生成汉字频率的排序列表。本输入技术的研究,为Windows CE系统在中文信息处理的汉字输入方法上添加了键盘输入,并且为其它嵌入式系统的汉字数字输入技术提供了有意义的参考。

【Abstract】 With social information-based quickening of process, mobile communication development of field appears and publishes the scene with rapid change. China as mobile communication equipment with big country, mobile communication powerful country of device fabrication too, the request of Chinese information processing in mobile communication equipment is quite high. The operating systems used on the mobile communication equipment at present are Windows CE, Plam and EPOC etc. Windows CE is embedded operating system putted out by Microsoft Corporation in the field of mobile communication. This operating system has strong networking ability, powerful real-time character and little memory volume taking up and abundant multimedia and Web function of browse. This makes Windows CE embedded operating system can be used in various kinds of small-scale embedded systems. And it is powerful. There are very wide prospects in the application in the industrial control field. But this embedded operating system only integrated Chinese character handwritten to input in Chinese information, and was not offered the more extensive keyboard input system. This article, according to the common digital keyboard on the mobile communication equipment, make essential research for Windows CE - embedded operation system in Chinese character input technology and realize with digital keyboard. Using tree-like structure that has the space complexity O(n) and the time complexity of O(n) when searching to store Chinese information. Chinese input method applying this kind of store technique in Chinese table has the quality of high input speed and low memory space. For accelerate input speed of Chinese character, according to daily Chinese character principle of prior choice, Make and count to commonly used Chinese character frequency, according to Chinese character from high to low prices order of frequency under the same code. Finally, this article propose a way that combine Chinese using frequency and users’ using frequency to create a Chinese character frequency table in embedded system. The research of input technique adds Chinese character digital input with Chinese information process in Windows CE operation system. And also this article offers meaningful reference for other embeddedsystem in Chinese character digital input technique.

  • 【分类号】TP391.1
  • 【被引频次】4
  • 【下载频次】190
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