SELF-ALIGNING UNOBTRUSIVE ACTIVE EYE INTERROGATION
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Accused Products
Abstract
Methods and system for determining a physiological parameter of a subject through interrogation of an eye of the subject with an optical signal are described. Interrogation is performed unobtrusively. The gaze direction of the eye of the subject is determined and an interrogation signal source and/or response signal sensor are moved into alignment with the eye using an actuator to facilitate detection of the signal from the eye of the subject.
13 Citations
295 Claims
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1-177. -177. (canceled)
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178. A method of measuring information from an eye of a subject, comprising;
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delivering an interrogation signal to the eye of the subject with an interrogation signal source; detecting a response signal from the eye of the subject with a response signal sensor; receiving a signal indicative of the gaze direction of the eye of the subject from a gaze signal sensor; determining whether the eye of the subject is in alignment with respect to at least one of the interrogation signal source and the response signal sensor; if the eye of the subject is not in alignment with respect to the at least one of the interrogation signal source and the response signal sensor, actuating at least one actuator configured to adjust at least one of the interrogation signal source and the response signal sensor based at least in part upon the signal from the gaze signal sensor to bring at least one of the interrogation signal source and the response signal sensor into alignment with the eye of the subject; determining a physiological parameter of the subject from the response signal detected from the eye of the subject when the eye of the subject is in alignment with respect to the at least one of the interrogation signal source and the response signal sensor; and causing a signal indicative of the physiological parameter to be transmitted to an external device. - View Dependent Claims (198, 199, 200, 201, 202, 205, 220, 221, 222, 223, 224, 225, 234, 288, 289, 290, 291, 292, 293, 294, 295)
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179-197. -197. (canceled)
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203-204. -204. (canceled)
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206-219. -219. (canceled)
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226-233. -233. (canceled)
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235. An article of manufacture comprising:
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one or more non-transitory machine-readable data storage media bearing one or more instructions for; delivering an interrogation signal to the eye of the subject with an interrogation signal source; detecting a response signal from the eye of the subject with a response signal sensor; receiving a signal indicative of the gaze direction of the eye of the subject from a gaze signal sensor; determining whether the eye of the subject is in alignment with respect to at least one of the interrogation signal source and the response signal sensor; if the eye of the subject is not in alignment with respect to the at least one of the interrogation signal source and the response signal sensor, actuating at least one actuator configured to adjust at least one of the interrogation signal source and the response signal sensor based at least in part upon the signal from the gaze signal sensor to bring at least one of the interrogation signal source and the response signal sensor into alignment with the eye of the subject; determining a physiological parameter of the subject from the response signal detected from the eye of the subject when the eye of the subject is in alignment with respect to the at least one of the interrogation signal source and the response signal sensor; and causing a signal indicative of the physiological parameter to be transmitted to an external device.
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236-287. -287. (canceled)
Specification