INEXPENSIVE BRAILLER: Writing Braille Using IMPAD - Courant ...

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5 Implementation……………………………………………………………………………….17 5.1 By Pressing Down…………………………………………………………………..17 5.2 By Lifting……………………………………………………………………………22 5.3 Kobigraphs………………………………………………………………………….23 6 Results…………………………………………………………………………….…………...28 7 Conclusions and Future Work………………………………………………………………30 Bibliography…………………………………………………………………………….………32 vi
List of Figures Figure 2.1.1: Braille Cell………………………………………………………………………….3 Figure 2.2.1: Braille Letters………………………………………………………………………4 Figure 2.2.2: Braille Numbers…………………………………………………………………….4 Figure 2.3.1: Perkins Brailler……………………………………………………………………...5 Figure 3.1.1: IMPAD……………………………………………………………………………...8 Figure 4.1.1: Brailler with IMPAD………………………………………………………………11 Figure 4.1.2: IMPAD Brailler Display with Six Touching Fingers……………………………...13 Figure 4.1.3: Displaying Input for Space………………………………………………………...14 Figure 4.1.4: Letter M……………………………………………………………………………15 Figure 4.1.5: Entering M by Pressing Down…………………………………………………….15 Figure 4.1.6: Entering M by Lifting the Fingers…………………………………………………15 Figure 4.1.7: Words and Abbreviations………………………………………………………….16 Figure 5.1.1: Zones for Touches…………………………………………………………………19 vii
Page 1 and 2: INEXPENSIVE BRAILLER: Writing Brail
Page 3 and 4: Acknowledgements I would like to th
Page 5: CONTENTS Acknowledgements………
Page 9 and 10: CHAPTER 1 Introduction Use of Brail
Page 11 and 12: CHAPTER 2 Braille 2.1 Overview Brai
Page 13 and 14: Braille Alphabets can belong to any
Page 15 and 16: CHAPTER 3 IMPAD - Inexpensive Multi
Page 17 and 18: at that intersection point. Finally
Page 19 and 20: uttons, and with this tactile feedb
Page 21 and 22: Figure 4.1.2: IMPAD Brailler Displa
Page 23 and 24: will apply more pressure on the lef
Page 25 and 26: CHAPTER 5 IMPLEMENTATION 5.1 By Pre
Page 27 and 28: Figure 5.1.1: Zones for Touches. Zo
Page 29 and 30: numbers, and the sum will give us t
Page 31 and 32: the binary representation. The sum
Page 33 and 34: accepted as a „South-West‟ move
Page 35 and 36: To enter the space character, a str
Page 37 and 38: sound files for those letters are p
Page 39 and 40: y connecting IMPAD to their PDA, we

INEXPENSIVE BRAILLER: Writing Braille Using IMPAD - Courant ...

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