Frequency Modulated Continuous Wave Optical Authentication System
AssigneeApple Inc.
InventorsArun Srivatsan Rangaprasad, Anselm Grundhoefer
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Abstract
An authentication system may use a frequency modulated continuous wave sensor to send and receive a signal towards an eye of a user. The received signal may include information about the structure and material properties of the eye. The authentication system may use the information that is included in the received signal to determine whether the sent signal is directed to an eye, whether the eye is open or closed, and whether the user corresponding to the eye is a particular previous user.
Claims20
A system, comprising:
- a frequency modulated continuous wave (FMCW) sensor configured to be directed to an eye, wherein the FMCW sensor is configured to emit a signal and receive a reflected signal;
- a controller, configured to:
- determine structural information of the eye based on the reflected signal, wherein the structural information comprises surface structural information and internal structural information;
- determine, based on the structural information, that a user corresponding to the eye corresponds to a previous user;
- and
- authenticate the user based on the determination that the user corresponds to the previous user.
A method, comprising:
- receiving a reflected signal, reflected from an eye, of a signal from a frequency modulated continuous wave (FMCW) sensor directed to the eye;
- determining structural information of the eye based on the reflected signal, wherein the structural information comprises surface structural information and internal structural information;
- determining, based on the structural information, that a user corresponding to the eye corresponds to a previous user;
- and
- authenticating the user based on the determination that the user corresponds to the previous user.
A non-transitory computer-readable storage medium storing program instructions, wherein the program instructions, when executed on or across one or more processors, cause the one or more processors to:
- receive information about a reflected signal from a frequency modulated continuous wave (FMCW) sensor, wherein the FMCW sensor is directed to an eye;
- determine structural information of the eye based on the reflected signal, wherein the structural information comprises surface structural information and internal structural information;
- determine, based on the structural information, that a user corresponding to the eye corresponds to a previous user;
- and
- authenticate the user based on the determination that the user corresponds to the previous user.
Dependencies are inferred from the claim text.