Wireless Power Hotspot that Charges All of Your Devices

Each year, consumers carry an increasing number of gadgets on their person: mobile phones, tablets, smartwatches, etc. As a result, users must remember to recharge each device, every day. Wireless charging promises to free users from this burden, allowing devices to remain permanently unplugged. Tod...

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Main Authors: Shi, Lixin, Katabi, Dina, Kabelac, Zachary E., Perreault, David J.
Other Authors: Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Format: Article
Language:en_US
Published: Association for Computing Machinery (ACM) 2015
Online Access:http://hdl.handle.net/1721.1/99110
https://orcid.org/0000-0001-8835-7810
https://orcid.org/0000-0002-2638-4028
https://orcid.org/0000-0002-0746-6191
https://orcid.org/0000-0003-4854-4157
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author Shi, Lixin
Katabi, Dina
Kabelac, Zachary E.
Perreault, David J.
author2 Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
author_facet Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Shi, Lixin
Katabi, Dina
Kabelac, Zachary E.
Perreault, David J.
author_sort Shi, Lixin
collection MIT
description Each year, consumers carry an increasing number of gadgets on their person: mobile phones, tablets, smartwatches, etc. As a result, users must remember to recharge each device, every day. Wireless charging promises to free users from this burden, allowing devices to remain permanently unplugged. Today's wireless charging, however, is either limited to a single device, or is highly cumbersome, requiring the user to remove all of her wearable and handheld gadgets and place them on a charging pad. This paper introduces MultiSpot, a new wireless charging technology that can charge multiple devices, even as the user is wearing them or carrying them in her pocket. A MultiSpot charger acts as an access point for wireless power. When a user enters the vicinity of the MultiSpot charger, all of her gadgets start to charge automatically. We have prototyped MultiSpot and evaluated it using off-the-shelf mobile phones, smartwatches, and tablets. Our results show that MultiSpot can charge 6 devices at distances of up to 50cm.
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spelling mit-1721.1/991102022-09-27T21:06:50Z Wireless Power Hotspot that Charges All of Your Devices Shi, Lixin Katabi, Dina Kabelac, Zachary E. Perreault, David J. Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Perreault, David J. Shi, Lixin Kabelac, Zachary E. Katabi, Dina Perreault, David J. Each year, consumers carry an increasing number of gadgets on their person: mobile phones, tablets, smartwatches, etc. As a result, users must remember to recharge each device, every day. Wireless charging promises to free users from this burden, allowing devices to remain permanently unplugged. Today's wireless charging, however, is either limited to a single device, or is highly cumbersome, requiring the user to remove all of her wearable and handheld gadgets and place them on a charging pad. This paper introduces MultiSpot, a new wireless charging technology that can charge multiple devices, even as the user is wearing them or carrying them in her pocket. A MultiSpot charger acts as an access point for wireless power. When a user enters the vicinity of the MultiSpot charger, all of her gadgets start to charge automatically. We have prototyped MultiSpot and evaluated it using off-the-shelf mobile phones, smartwatches, and tablets. Our results show that MultiSpot can charge 6 devices at distances of up to 50cm. National Science Foundation (U.S.) 2015-09-30T12:58:32Z 2015-09-30T12:58:32Z 2015-09 Article http://purl.org/eprint/type/ConferencePaper 9781450336192 http://hdl.handle.net/1721.1/99110 Lixin Shi, Zachary Kabelac, Dina Katabi, and David Perreault. 2015. Wireless Power Hotspot that Charges All of Your Devices. In Proceedings of the 21st Annual International Conference on Mobile Computing and Networking (MobiCom '15). ACM, New York, NY, USA, 2-13. https://orcid.org/0000-0001-8835-7810 https://orcid.org/0000-0002-2638-4028 https://orcid.org/0000-0002-0746-6191 https://orcid.org/0000-0003-4854-4157 en_US http://dx.doi.org/10.1145/2789168.2790092 Proceedings of the 21st Annual International Conference on Mobile Computing and Networking (MobiCom '15) Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Association for Computing Machinery (ACM) Perreault via Vabulas
spellingShingle Shi, Lixin
Katabi, Dina
Kabelac, Zachary E.
Perreault, David J.
Wireless Power Hotspot that Charges All of Your Devices
title Wireless Power Hotspot that Charges All of Your Devices
title_full Wireless Power Hotspot that Charges All of Your Devices
title_fullStr Wireless Power Hotspot that Charges All of Your Devices
title_full_unstemmed Wireless Power Hotspot that Charges All of Your Devices
title_short Wireless Power Hotspot that Charges All of Your Devices
title_sort wireless power hotspot that charges all of your devices
url http://hdl.handle.net/1721.1/99110
https://orcid.org/0000-0001-8835-7810
https://orcid.org/0000-0002-2638-4028
https://orcid.org/0000-0002-0746-6191
https://orcid.org/0000-0003-4854-4157
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