US 2025/0147176 A1 · PROXIMITY AND LIVENESS DETECTION USING AN ULTRASONIC TRANSCEIVER

Abstract

Devices and methods are provided that facilitate proximity or liveness detection of a user of a wearable device or a user interacting with a device based on ultrasonic information. In various embodiments, machine learning classifier models can be employed to generate classification predictions of a donned or a doffed state of a wearable device. In various aspects, a gated-recurrent unit (GRU) recursive neural network (RNN) can be employed as a machine learning classifier model. In other aspects, a liveness detection classifier decision tree can be employed as a machine learning classifier model. Power states or operating modes for associated devices can be selected based on the proximity or liveness of the user of the wearable device, as an example.

Claims35

Dependent claims

An apparatus, comprising:

a processor that executes computer-executable components stored in a computer-readable memory, the computer-executable components comprising:
a liveness detection classifier component that generates a classification of ultrasonic information as indicative of at least one of proximity or liveness of a user of a wearable device comprising the apparatus via a liveness classification algorithm;
a determination component that generates a determination of the at least one of the proximity or the liveness of the user of the wearable device based at least in part on the classification;
and
a power management component configured to select at least one of a power state or an operating mode of the wearable device based at least in part on the determination of the at least one of the proximity or the liveness of the user of the wearable device.

2 more elements

A method, comprising:

generating, by an ultrasonic transceiver operatively coupled to a processor, ultrasonic information associated with a user of a wearable device;
generating a classification, via a liveness detection classifier component associated with a memory coupled to the processor, of the ultrasonic information as indicative of at least one of proximity or liveness of the user of the wearable device according to a liveness classification algorithm executed by the processor;
generating a determination, via a determination component associated with the memory, of the at least one of the proximity or the liveness of the user of the wearable device based at least in part on the classification;
and
selecting, via a power management component associated with the memory, at least one of a power state or operating mode of the wearable device based at least in part on the determination of the at least one of the proximity or the liveness of the user of the wearable device.

2 more elements

Dependencies are inferred from the claim text.

Proximity and liveness detection using an ultrasonic transceiver

Life of this patent

Proximity and liveness detection using an ultrasonic transceiver

Life of this patent

Abstract

Claims35