Wide-Field Radar-Based Gesture Recognition
First Claim
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1. A computer-implemented method comprising:
- providing, by an emitter of a radar system, a radar field;
receiving, at a receiver of the radar system, a first set of reflection signals caused by a first interaction of a first human action performing a gesture within the radar field, the first set of reflection signals representing a first time period during which the first human action interacts with the radar field;
receiving, at the receiver of the radar system, a second set of reflection signals caused by a second interaction of a second human action performing the gesture within the radar field, the second set of reflection signals representing a second time period during which the second human action interacts with the radar field;
analyzing the first and second sets of reflection signals to determine a signal element common to the first and second sets of reflection signals; and
associating the signal element with the gesture effective to enable a later received reflection signal caused by an interaction by a different human action to be associated with the gesture.
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Abstract
This document describes techniques using, and devices embodying, wide-field radar-based gesture recognition. These techniques and devices can enable a great breadth of gestures and uses for those gestures, such as gestures to use, control, and interact with computing and non-computing devices, from software applications to refrigerators.
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Citations
20 Claims
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1. A computer-implemented method comprising:
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providing, by an emitter of a radar system, a radar field; receiving, at a receiver of the radar system, a first set of reflection signals caused by a first interaction of a first human action performing a gesture within the radar field, the first set of reflection signals representing a first time period during which the first human action interacts with the radar field; receiving, at the receiver of the radar system, a second set of reflection signals caused by a second interaction of a second human action performing the gesture within the radar field, the second set of reflection signals representing a second time period during which the second human action interacts with the radar field; analyzing the first and second sets of reflection signals to determine a signal element common to the first and second sets of reflection signals; and associating the signal element with the gesture effective to enable a later received reflection signal caused by an interaction by a different human action to be associated with the gesture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A computer-implemented method comprising:
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providing a wide radar field; receiving a reflection signal for a gesture made within the wide radar field; determining signal elements of the reflection signal; comparing the signal elements of the reflection signal to known signal elements associated with known gestures; determining, based on the signal elements of the reflection signal corresponding to the known signal elements, that the gesture made in the wide radar field is one of the known gestures; and passing the one of the known gestures to an application or operating system. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. An apparatus comprising:
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a wide-field radar-based gesture-recognition system comprising; a radar-emitting element configured to provide a wide radar field; and an antenna element configured to; receive reflection signals from human tissue that is within the wide radar field; and pass the received reflection signals; and one or more computer-readable storage media having instructions stored thereon that, responsive to execution by the one or more computer processors, perform operations comprising; causing the wide-field radar-based gesture-recognition system to provide a radar field with the radar-emitting element; causing the wide-field radar-based gesture-recognition system to receive reflection signals for an interaction in the wide radar field with the antenna element; determining, based on the received reflection signals, signal elements; comparing the signal elements of the received reflection signal to known signal elements associated with known gestures; determining, based on the signal elements corresponding to the known signal elements, that the interaction made in the wide radar field corresponds to one of the known gestures; and passing the one of the known gestures to an application or operating system. - View Dependent Claims (19, 20)
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Specification