Device, system, and method of user authentication utilizing an optical microphone
First Claim
1. A system comprising:
- a laser-based self-mix microphone (a) to transmit an outgoing laser signal towards a face of a human speaker, (b) to receive an incoming optical feedback that is reflected back from said face of said human speaker as reflected feedback to said outgoing laser signal, (c) to perform laser self-mix interferometry of said outgoing laser signal and said incoming optical feedback, and (d) based on said laser self-mix interferometry, to generate a user-specific laser self-mix characteristic that uniquely characterizes laser self-mixing of said outgoing laser signal with said incoming optical feedback that is reflected back from said face of said human speaker, wherein said user-specific laser self-mix characteristic uniquely distinguishes between said human speaker and other human speakers;
a user authentication module to authenticate said human speaker for performing a privileged action, based on said user-specific laser self-mix characteristic that was generated by said laser self-mix interferometry of the outgoing laser signal with said the incoming optical feedback that is associated with said human speaker.
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Abstract
Device, system, and method of user authentication utilizing an optical microphone or laser-based microphone. An optical microphone transmits an outgoing optical signal or laser beam towards a face of a human speaker; receives an incoming optical feedback that is reflected back from the face of the human speaker; performs self-mix interferometry that is based on the outgoing optical signal and the incoming reflected optical signal; and generates a user-specific feature or characteristic that uniquely characterizes said human speaker. A user authentication module operates to authenticate the user for performing a privileged or an access-controlled action, based on the user-specific characteristic that was generated, optionally in combination with one or more biometric features or authentication requirements.
110 Citations
13 Claims
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1. A system comprising:
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a laser-based self-mix microphone (a) to transmit an outgoing laser signal towards a face of a human speaker, (b) to receive an incoming optical feedback that is reflected back from said face of said human speaker as reflected feedback to said outgoing laser signal, (c) to perform laser self-mix interferometry of said outgoing laser signal and said incoming optical feedback, and (d) based on said laser self-mix interferometry, to generate a user-specific laser self-mix characteristic that uniquely characterizes laser self-mixing of said outgoing laser signal with said incoming optical feedback that is reflected back from said face of said human speaker, wherein said user-specific laser self-mix characteristic uniquely distinguishes between said human speaker and other human speakers; a user authentication module to authenticate said human speaker for performing a privileged action, based on said user-specific laser self-mix characteristic that was generated by said laser self-mix interferometry of the outgoing laser signal with said the incoming optical feedback that is associated with said human speaker. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification