本論文提出一種能夠降低成本同時提高使用便利性的翻譯筆，其構造為前端光學鏡頭讀取書本上的英文單字，翻譯筆再將讀取到的英文單字轉換成灰階BMP格式，利用翻譯筆內建的藍芽無線發射器將讀取到的英文單字圖形檔送到智慧型手機。 借助智慧型手機上的OCR軟體(Optical Character Recognition光學字元識別)將圖形檔轉換成文字檔，此文字檔自動傳送給在智慧型手機內部的翻譯軟體，翻譯軟體查詢該英文單字的翻譯中文之後，將中文編碼透過軟體轉換成中文字形，再經由藍芽傳送回給翻譯筆，翻譯筆收到該中文字形後控制投影裝置將中文投射在書本上面。 為了要降低成本，必須要極大的簡化翻譯筆上面的零組件，降低零組件的規格，將該執行的運算和資料庫功能盡可能的透過藍芽無線傳輸，傳送到智慧型手機上面執行，翻譯筆上只剩下I/O裝置，提升使用者在操作上的便利性。 ;This work deals with an e-dictionary pen which can translate an English vocabulary on the paper into a Chinese one and project it on the same place. Notice that, compared with the same products on the market, we present a low cost solution, also notice that we enhance user-friendliness and convenience. The developed e-dictionary pen is functioned as scanning an English vocabulary on ink paper by an optical lens in front of the pen, transforming the read texts string into grey level images, and relaying the images to a smartphone via a Bluetooth interface embedded in the pen. Adopting the Optical Character Recognition(OCR) Application Programming Interface(API) within smartphones, text strings are recognized from the relayed images, translated into coded Chinese vocabulary, transferred into bitmap images, and sent back to the pen through the same interface. After receiving the bitmap images, e-dictionary pen will project it on ink paper. It has shown that, in order to cut the cost of an e-dictionary pen, we eliminate all expensive components by making use of functions and databank of smartphones to process all required complex algorithms. It has shown that an e-dictionary pen is only an I/O device which results in friendly and convenient for users.
