Radar-based gesture-recognition at a surface of an object
AssigneeGoogle Inc.
InventorsIvan Poupyrev, Gaetano Roberto Aiello
Life of this patent
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Abstract
This document describes techniques and devices for radar-based gesture-recognition through a wearable device. The techniques enable an easy-to-use input interface through this wearable radar device, in contrast to small or difficult-to-use input interfaces common to wearable computing devices. Further, these techniques are not limited to interfacing with wearable computing devices, but may aid users in controlling various non-wearable devices, such as to control volume on a stereo, pause a movie playing on a television, or select a webpage on a desktop computer.
Claims20
A radar-based gesture-recognition system comprising:
- a microwave radio element that emits microwave radiation that is tailored to human tissue by using particular frequencies that substantially penetrate clothing material while not substantially penetrating human tissue, the emitted microwave radiation configured to provide a localized radar field conforming to a surface of an object;
- an antenna element that senses interactions at the surface of the object and within the localized radar field;
- one or more processors;
- and
- one or more computer-readable storage media having instructions that, when executed, cause the one or more processors to:
- differentiate, based on the interactions sensed by the antenna element according to particular frequencies used to tailor the emitted microwave radiation to human tissue, user interactions caused by human tissue from other interactions that are not caused by human tissue;
- determine, based on the user interactions and not the other interactions, a gesture performed at the surface of the object;
- and
- output an indication of the determined gesture.
A method implemented by a radar-based gesture-recognition system comprising:
- emitting, using a microwave radio element of the radar-based gesture recognition system, microwave radiation tailored to human tissue by using particular frequencies that substantially penetrate clothing material while not substantially penetrating human tissue, the microwave radiation emitted to provide a localized radar field conforming to a surface of an object;
- sensing, with an antenna element of the radar-based gesture-recognition system, interactions at the surface of the object and within the localized radar field;
- differentiating, from the sensed interactions associated with the particular frequencies used to tailor the microwave radiation to human tissue, user interactions that are from human tissue from other interactions that are not from human tissue;
- determining, based on the differentiated user interactions that are from human tissue, a gesture performed at the surface of the object;
- and
- outputting data corresponding to the determined gesture.
A computer-readable storage media having instructions that, when executed, cause the one or more processors to:
- cause a microwave radio element to emit microwave radiation that:
- is tailored to human tissue by using particular frequencies that substantially penetrate clothing material while not substantially penetrating human tissue;
- and
- provides a localized radar field conforming to a surface of an object;
- receive interactions sensed, with an antenna element, at the surface of the object and within the localized radar field;
- differentiate, from the sensed interactions associated with the particular frequencies used to tailor the microwave radiation to human tissue, user interactions that are from human tissue from other interactions that are not from human tissue;
- determine, based on the differentiated user interactions that are from human tissue, a gesture performed at the surface of the object;
- and
- output data corresponding to the determined gesture.
Dependencies are inferred from the claim text.