Isolating mobile device electrode
View Patent ↗In one embodiment, a method includes receiving real-time sensor data from multiple sensors located on multiple surfaces of a computing device; detecting a transition in the real-time sensor data from a steady state; and determining based on the detection an imminent use of the computing device.
1. A method comprising:
by a computing device, receiving real-time sensor data from a plurality of sensors located on a plurality of surfaces of the computing device;
by the computing device, detecting a transition in the real-time sensor data from a steady state, wherein the detection comprises:
by the computing device, applying a function to the real-time sensor data from each sensor;
by the computing device, determining a vector of the real-time sensor data based on one or more derivatives of an output of the applied function; and
by the computing device, calculating a projection of the vector of the real-time sensor data on a vector of the steady-state of the computing device; and
by the computing device, determining based on the detection an imminent use of the computing device.
2. The method of claim 1 , wherein calculating the projection comprises:
by the computing device, calculating a dot product of the vector of the real-time sensor data and the vector of the steady-state of the computing device; and
by the computing device, translating the projection to an origin.
3. The method of claim 1 , wherein the function comprises a filtering function, derivative function, convolution of a Heaviside or sigmoid function, or any combination thereof.
4. The method of claim 1 , wherein determining an imminent use comprises, by the computing device, comparing the projection with a projection corresponding to the imminent use of the computing device.
5. The method of claim 1 , wherein:
the computing device is a mobile computing device; and
the imminent use of the computing device corresponds to physical contact between the user and the mobile computing device.
6. The method of claim 1 , wherein one or more of the sensors are touch sensors, at least one of the touch sensors being located on a side surface and at least one of the touch sensor being located on a bottom surface of a mobile computing device.
7. The method of claim 1 , wherein one or more of the sensors are touch sensors, at least one of the touch sensors being located along a side surface and at least one of the touch sensors being located along a portion of the side surface and a portion of bottom surface of the mobile computing device.
8. One or more computer-readable non-transitory storage media embodying software configured when executed to:
receive real-time sensor data from a plurality of sensors located on a plurality of surfaces of a computing device;
detect a transition in the real-time sensor data from a steady state, wherein the detection comprises:
applying a function to the real-time sensor data from each sensor;
determining a vector of the real-time sensor data based on one or more derivatives of an output of the applied function; and
calculating a projection of the vector of the real-time sensor data on a vector of the steady-state of the computing device; and
determine based on the detection an imminent use of the computing device.
9. The media of claim 8 , wherein the software is further configured to:
calculate a dot product of the vector of the real-time sensor data and the vector of the steady-state of the computing device; and
translate the projection to an origin.
10. The media of claim 8 , wherein the function comprises a filtering function, derivative function, convolution of a Heaviside or sigmoid function, or any combination thereof.
11. The media of claim 8 , wherein the software is further configured to compare the projection with a projection corresponding to the imminent use of the computing device.
12. The media of claim 8 , wherein:
the computing device is a mobile computing device; and
the imminent use of the computing device corresponds to physical contact between the user and the mobile computing device.
13. The media of claim 8 , wherein one or more of the sensors are touch sensors, at least one of the touch sensors being located on a side surface and at least one of the touch sensor being located on a bottom surface of a mobile computing device.
14. The media of claim 8 , wherein one or more of the sensors are touch sensors, at least one of the touch sensors being located along a side surface and at least one of the touch sensors being located along a portion of the side surface and a portion of bottom surface of the mobile computing device.
15. A device comprising:
a processor; and
one or more computer-readable non-transitory storage media coupled to the processor and embodying software that:
receive real-time sensor data from a plurality of sensors located on a plurality of surfaces of the device;
detect a transition in the real-time sensor data from a steady state, wherein the detection comprises:
applying a function to the real-time sensor data from each sensor;
determining a vector of the real-time sensor data based on one or more derivatives of an output of the applied function; and
calculating a projection of the vector of the real-time sensor data on a vector of the steady-state of the device; and
determine based on the detection an imminent use of the device.
16. The device of claim 15 , wherein the software is further configured to:
calculate a dot product of the vector of the real-time sensor data and the vector of the steady-state of the device; and
translate the projection to an origin.
17. The device of claim 15 , wherein the software is further configured to compare the projection with a projection corresponding to the imminent use of the device.
18. The device of claim 15 , wherein the function comprises a filtering function, derivative function, convolution of a Heaviside or sigmoid function, or any combination thereof.
19. The device of claim 15 , wherein:
the device is a mobile computing device; and
the imminent use of the computing device corresponds to physical contact between the user and the mobile computing device.
20. The device of claim 15 , wherein one or more of the sensors are touch sensors, at least one of the touch sensors being located on a side surface and at least one of the touch sensor being located on a bottom surface of a mobile computing device.
21. The device of claim 15 , wherein one or more of the sensors are touch sensors, at least one of the touch sensors being located along a side surface and at least one of the touch sensors being located along a portion of the side surface and a portion of bottom surface of the mobile computing device.