US Patent 8224978 Mechanism to verify physical proximity
Patent 8224978 was granted and assigned to Microsoft on July, 2012 by the United States Patent and Trademark Office.
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Patent abstract
Two participants may observe periodic data sources available only in the vicinity of physical trust (i.e. a wifi beacon). If an initial test of whether each participant has received the same key is passed, each party may hash the periodic source and communicate it to the other over a non-proximal communication channel (an IP network) and both are able to verify that the other (or agent of the other) is within the same vicinity.
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Patent Inventor Names
Daniel Driscoll0
Robert Hain0
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US Patent 08224978 Mechanism to verify physical proximity US Patent 8224978 Mechanism to verify physical proximity
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Patent Number
08224978
Patent Number
8224978
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US Patent 08224978 Mechanism to verify physical proximity
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Is a
Current assignee
Patent jurisdiction
Patent number
08224978
Date of patent
July 17, 2012
Patent application number
12436947
Date Filed
May 7, 2009
Patent primary examiner
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