Gesture recognition using multiple antenna
Various embodiments wirelessly detect micro gestures using multiple antenna of a gesture sensor device. At times, the gesture sensor device transmits multiple outgoing radio frequency (RF) signals, each outgoing RF signal transmitted via a respective antenna of the gesture sensor device. The outgoing RF signals are configured to help capture information that can be used to identify micro-gestures performed by a hand. The gesture sensor device captures incoming RF signals generated by the outgoing RF signals reflecting off of the hand, and then analyzes the incoming RF signals to identify the micro-gesture.
1. A device configured to identify a gesture associated with a target object, the device comprising:
a processor; and
a computer-readable media comprising instructions that, when executed by the processor, cause the processor to:
receive a plurality of incoming RF signals generated by at least one outgoing RF signal reflecting off the target object;
process a set of data originating from the incoming RF signals to extract shape information about the target object; and
process the shape information about the target object to identify the gesture.
2. The device as recited in claim 1 , wherein:
the outgoing RF signal comprises a single RF signal; and
the instructions further cause the processor to cause the outgoing RF signal to be transmitted via a transmit antenna of the device.
3. The device as recited in claim 2 , wherein the instructions further cause the processor to:
receive the incoming RF signals via a plurality of receive antennas of the device; and
receive each of the incoming RF signals via a respective receive antenna of the receive antennas.
4. The device as recited in claim 1 , wherein:
the outgoing RF signal comprises a plurality of outgoing RF signals; and
the instructions further cause the processor to:
cause the outgoing RF signals to be transmitted via a plurality of transmit antennas of the device; and
transmit each of the outgoing RF signals via a respective transmit antenna of the transmit antennas.
5. The device as recited in claim 4 , wherein the instructions further cause the processor to:
receive the incoming RF signals via a plurality of receive antennas of the device; and
receive each of the incoming RF signals via a respective receive antenna of the receive antennas.
6. A device configured to identify a micro-gesture performed by a hand, the device comprising:
a processor; and
a computer-readable media comprising instructions that, when executed by the processor, cause the processor to:
receive a plurality of incoming RF signals generated by at least one outgoing RF signal reflecting off the hand;
process a set of data originating from the incoming RF signals to extract millimeter-scale information about the hand; and
process the millimeter-scale information about the hand to identify the micro-gesture.
7. The device as recited in claim 6 , wherein:
the outgoing RF signal comprises a single RF signal; and
the instructions further cause the processor to cause the outgoing RF signal to be transmitted via a transmit antenna of the device.
8. The device as recited in claim 7 , wherein the instructions further cause the processor to:
receive the incoming RF signals via a plurality of receive antennas of the device; and
receive each of the incoming RF signals via a respective receive antenna of the receive antennas.
9. The device as recited in claim 6 , wherein:
the outgoing RF signal comprises a plurality of outgoing RF signals; and
the instructions further cause the processor to:
cause the outgoing RF signals to be transmitted via a plurality of transmit antennas of the device; and
transmit each of the outgoing RF signals via a respective transmit antenna of the transmit antennas.
10. The device as recited in claim 9 , wherein the instructions further cause the processor to:
receive the incoming RF signals via a plurality of receive antennas of the device; and
receive each of the incoming RF signals via a respective receive antenna of the receive antennas.
11. The device as recited in claim 6 , wherein the instructions further cause the processor to:
classify a target object as the hand; and
identify the gesture from a plurality of hand-related gestures.
12. A device configured to identify a gesture performed by a user, the device comprising:
a processor; and
a computer-readable media comprising instructions that, when executed by the processor, cause the processor to:
receive a plurality of incoming RF signals generated by at least one outgoing RF signal reflecting off two or more portions of the user;
process a set of data originating from the incoming RF signals to extract information about movements of each of the portions of the user;
determine, based on the information about the movements of each of the portions of the user, a relative movement between the portions of the user; and
process the relative movement between the portions of the user to identify the gesture.
13. The device as recited in claim 12 , wherein:
the outgoing RF signal comprises a single RF signal; and
the instructions further cause the processor to cause the outgoing RF signal to be transmitted via a transmit antenna of the device.
14. The device as recited in claim 13 , wherein the instructions further cause the processor to:
receive the incoming RF signals via a plurality of receive antennas of the device; and
receive each of the incoming RF signals via a respective receive antenna of the receive antennas.
15. The device as recited in claim 12 , wherein:
the outgoing RF signal comprises a plurality of outgoing RF signals; and
the instructions further cause the processor to:
cause the outgoing RF signals to be transmitted via a plurality of transmit antennas of the device; and
transmit each of the outgoing RF signals via a respective transmit antenna of the transmit antennas.
16. The device as recited in claim 15 , wherein the instructions further cause the processor to:
receive the incoming RF signals via a plurality of receive antennas of the device; and
receive each of the incoming RF signals via a respective receive antenna of the receive antennas.
17. The device as recited in claim 12 , wherein the instructions are comprised by one or more application programming interfaces that enable bi-directional communication with one or more applications of the device.
18. The device as recited in claim 17 , wherein at least one application programming interface of the application programming interfaces is configured to perform at least one of:
configuring transmission parameters associated with the outgoing RF signal;
configuring the processing of the set of data originating from the incoming RF signals to extract the information about the movements of each of the portions of the user;
configuring the processing of the relative movement to identify the gesture; or
enabling registration for an event notification when the gesture is detected.
19. The device as recited in claim 1 , wherein the shape information about the target object is on a millimeter scale.
20. The device as recited in claim 6 , wherein the millimeter-scale information about the hand comprises millimeter-scale shape or movement information about the hand.