COMPLEX WAKEUP GESTURE FRAMEWORK

1 . A processing system for sensing, comprising:

a sensor module comprising sensor circuitry coupled to a plurality of sensor electrodes, the sensor module configured to acquire sensing signals with the plurality of sensor electrodes; and

a determination module configured to:

determine, from the sensing signals, first positional information corresponding to a first gesture while a host device is in low power mode,

determine, based on the first positional information and while the host device is in the low power mode, that the first gesture is deliberate input,

send, in response to determining that the first gesture is deliberate input, a wake signal to the host device to switch the host device out of the low power mode, and

send the first positional information to the host device after the host device receives the wake signal.

2 . The processing system of claim 1 , wherein the determination module is further configured to:

determine, from the sensing signals, second positional information corresponding to a second gesture while the host device is in low power mode,

determine, based on the second positional information and while the host device is in the low power mode, that the second gesture is incidental input, and

drop, in response to determining that the second gesture is incidental input, the second positional information without sending a wake signal to the host device to switch the host device out of low power mode.

3 . The processing system of claim 1 , wherein determining that the first gesture is deliberate input comprises:

comparing the first positional information to a plurality of exclusionary rules, and

determining that the plurality of exclusionary rules is satisfied.

4 . The processing system of claim 3 , wherein the plurality of exclusionary rules comprises an exclusionary rule that specifies a maximum number of input objects in the sensing region during the first gesture.

5 . The processing system of claim 1 , wherein determining that the first gesture is deliberate input comprises:

obtaining a length of a path of the first gesture, and

determining that the length of the path satisfies a length threshold.

6 . The processing system of claim 1 , wherein determining that the first gesture is deliberate input comprises:

obtaining a linearity of a path forming the first gesture, and

determining that the linearity satisfies a linearity threshold.

7 . The processing system of claim 1 , wherein determining that the first gesture is deliberate input comprises:

measuring an amount of variability in an input object size forming the first gesture, and

determining that the amount of variability satisfies a variability threshold.

8 . The processing system of claim 1 , wherein determining that the first gesture is deliberate input comprises:

obtaining a velocity of an input object forming the first gesture, and

determining that the velocity satisfies a velocity threshold.

9 . The processing system of claim 1 , wherein determining that the first gesture is deliberate input comprises:

identifying a position of the first gesture, and

determining that the position is a threshold distance from an edge of the sensing region.

10 . The processing system of claim 1 , wherein the determination module is further configured to:

determine, from the sensing signals, second positional information corresponding to a second gesture while the host device is in low power mode,

determine, based on the second positional information and while the host device is in the low power mode, that the second gesture is deliberate input,

determine, based on the second positional information and while the host device is in the low power mode, that the second gesture is an input device recognized gesture,

determine, while the host device is in the low power mode, an action corresponding to the input device recognized gesture, and

send, in response to determining that the second gesture is deliberate input and the action, a wake signal and a notification of the action to the host device to switch the host device out of the low power mode and perform the action.

11 . A system comprising:

an input device comprising:

a plurality of sensor electrodes configured to acquire sensing signals, and

a processing system configured to:

determine, from the sensing signals, a first positional information corresponding to a first gesture while a host device is in low power mode,

determine, based on the first positional information and while the host device is in the low power mode, that the first gesture is deliberate input, and

send, in response to determining that the first gesture is deliberate input, a wake signal to the host device to switch the host device out of the low power mode, and

send the first positional information to the host device after the host device receives the wake signal; and

a host device configured to:

switch out of the low power mode based on the wake signal, and

analyze the first positional information based on receiving the first positional information.

12 . The system of claim 11 , wherein analyzing the first positional information comprises:

identifying an action corresponding to the first positional information, and

wherein the host device is further configured to perform the action.

13 . The system of claim 11 , wherein the processing system is further configured to:

determine, from the sensing signals, a second positional information corresponding to a second gesture while the host device is in low power mode,

determine, based on the second positional information and while the host device is in the low power mode, that the second gesture is deliberate input,

determine, based on the second positional information and while the host device is in the low power mode, that the second gesture is an input device recognized gesture,

determine, while the host device is in the low power mode, an action corresponding to the input device recognized gesture, and

send, in response to determining that the second gesture is deliberate input and the action, a wake signal and a notification of the action to the host device to switch the host device out of the low power mode and perform the action, and

wherein the host device is further configured to perform the action in response to the wake signal and the notification of the action.

14 . The system of claim 11 , wherein the processing system is further configured to:

capture, from the sensing signals, a second positional information corresponding to a second gesture while the host device is in low power mode,

determine, based on the second positional information and while the host device is in the low power mode, that the second gesture is incidental input, and

drop, in response to determining that the second gesture is incidental input, the second positional information without sending a wake signal to the host device to switch the host device out of low power mode.

15 . A method for sensing comprising:

determining a first positional information corresponding to a first gesture while a host device is in low power mode;

determining, based on the first positional information and while the host device is in the low power mode, that the first gesture is deliberate input;

sending, in response to determining that the first gesture is deliberate input, a wake signal to the host device to switch the host device out of the low power mode, and

sending the first positional information to the host device after the host device receives the wake signal.

16 . The method of claim 15 , further comprising:

determining, from the sensing signals, a second positional information corresponding to a second gesture while the host device is in low power mode,

determining, based on the second positional information and while the host device is in the low power mode, that the second gesture is incidental input, and

dropping, in response to determining that the second gesture is incidental input, the second positional information without sending a wake signal to the host device to switch the host device out of low power mode.

17 . The method of claim 15 , wherein determining that the first gesture is deliberate input comprises:

comparing the first positional information to a plurality of exclusionary rules, and

determining that the plurality of exclusionary rules is satisfied.

18 . The method of claim 17 , wherein the plurality of exclusionary rules comprises an exclusionary rule that specifies a maximum number of input objects in the sensing region during the first gesture.

19 . The method of claim 15 , further comprising:

determining, from the sensing signals, a second positional information corresponding to a second gesture while the host device is in low power mode,

determining, based on the second positional information and while the host device is in the low power mode, that the second gesture is deliberate input,

determining, based on the second positional information and while the host device is in the low power mode, that the second gesture is an input device recognized gesture,

determining, while the host device is in the low power mode, an action corresponding to the input device recognized gesture, and

sending, in response to determining that the second gesture is deliberate input and the action, a wake signal and a notification of the action to the host device to switch the host device out of the low power mode and perform the action.

20 . The method of claim 15 , wherein determining that the first gesture is deliberate input comprises:

obtaining a length of a path of the first gesture, and

determining that the length of the path satisfies a length threshold.