| Acknowledgments | 6 |
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| Preface | 8 |
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| Contents | 13 |
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| PART 1: INTRODUCTION TO WEARABLES | 15 |
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| Chapter 1 BACKGROUND | 16 |
| 1.1 POWER TO THE PEOPLE | 16 |
| 1.2 A CURIOUS SITUATION | 17 |
| 1.3 A BRIEF HISTORY OF WEARABLE TECHNOLOGY | 21 |
| 1.4 ACCEPTANCE FACTORS FOR WEARABLE SYSTEMS | 31 |
| Chapter 2 WEARABLE SYSTEM APPLICATIONS | 34 |
| 2.1 CHARACTERISTICS OF A WEARABLE APPLICATION | 34 |
| 2.2 MAINSTREAM WEARABLE SYSTEM APPLICATIONS | 37 |
| 2.3 MAKING THESE APPLICATIONS TRANSPARENT | 52 |
| Chapter 3 OVERVIEW OF WEARABLE SYSTEMS | 54 |
| 3.1 WHAT IS A MAINSTREAM WEARABLE? | 54 |
| 3.2 CHARACTERISTICS OF A WEARABLE SYSTEM | 59 |
| 3.3 USER – WEARABLE INTERACTION MODES | 63 |
| 3.4 FORM FACTOR OVERVIEW | 68 |
| 3.5 TIME OUT: CONVERSATION WITH A SKEPTIC | 81 |
| PART 2: MAINSTREAM WEARABLE DESIGN | 90 |
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| Chapter 4 OVERVIEW OF MAINSTREAM WEARABLE DESIGN | 91 |
| 4.1 WHY THE BAD EXPERIENCE WITH ELECTRONIC DEVICES? | 91 |
| 4.2 A TRANSPARENT USE DESIGN MINDSET | 93 |
| 4.3 SYSTEM DESIGN PRINCIPLES | 114 |
| 5.1 THE TRANSPARENT USE DESIGN PRINCIPLES IN DETAIL | 125 |
| Chapter 5 MAINSTREAM WEARABLE DESIGN IN DETAIL | 125 |
| 5.2 APPLYING THE DESIGN PRINCIPLES | 159 |
| PART 3: SUPPORTING TECHNOLOGIES | 165 |
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| Chapter 6 AWARENESS AND IMMERSION | 166 |
| 6.1 PERVASIVE COMPUTING: THE EMERGENCE OF SMART SPACES | 166 |
| 6.2 CONTEXT AWARENESS | 179 |
| Chapter 7 COMMUNICATION AND POWER | 205 |
| 7.1 COMUNICATIONS IN WEARABLE SYSTEMS | 205 |
| 7.2 POWER MANAGEMENT | 218 |
| PART 4: MAINSTREAM WEARABLE SYSTEMS USER INTERFACES | 240 |
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| Chapter 8 SIGHT AND SOUND USER INTERFACES | 241 |
| 8.1 THE ROLE OF A USER INTERFACE | 241 |
| 8.2 DESIGN ATTRIBUTES OF A USER INTERFACE | 244 |
| 8.3 SPEECH USER INTERFACE81 | 246 |
| 8.4 AUDIO INTERFACE | 260 |
| 8.5 GRAPHICAL USER INTERFACE FOR WEARABLES | 265 |
| Chapter 9 EMERGI NG USER INTERFACES | 276 |
| 9.1 GESTURE INTERFACES | 276 |
| 9.2 HAPTICS INTERFACE | 283 |
| 9.3 EYE TRACKING | 290 |
| 9.4 MULTIMODAL USER INTERFACE | 294 |
| 9.5 INTERFACE PERSONALIZATION | 303 |
| PART 5: SOME TOUGH HURDLES AND THE FUTURE | 315 |
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| Chapter 10 SOCIAL ISSUES OF WEARABLES | 316 |
| 10.1 WEARABLES AND THE ACCOMMODATION OF SOCIAL VALUES AND CONVENTIONS | 316 |
| 10.2 RESOLVING THESE ISSUES | 334 |
| Chapter 11 FUTURE OF WEARABLE SYSTEMS | 338 |
| 11.1 TRENDS | 338 |
| 11.2 PREDICTIONS | 341 |
| 11.3 LAWS OF WEARABLES | 352 |
| 11.4 CYBERTWIN: A POSSIBLE FUTURE | 353 |
| A Final Note WHY TAME THE BORG? | 365 |
| GLOSSARY OF WEARABLE TERMS | 368 |
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| INDEX | 388 |