Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
June 5, 2018
Patent Application Number
14444914
Date Filed
July 28, 2014
Patent Citations Received
Patent Primary Examiner
Patent abstract
A method of unlocking a locked device includes receiving a device identifier over a wireless communication protocol, determining if the device identifier is associated with a list of trusted devices, transmitting a request to generate an acoustic signal over the wireless communication protocol based on the determination, receiving the acoustic signal as an audio sound generated external to the locked device, estimating a distance between a source of the audio sound and the locked device, and unlocking the locked device based on the estimation.
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