Touch-control module
A touch-control module for recognizing gesture inputs by a position sensitive device to an electronic device is disclosed. The touch-control module includes an input connected to the position sensitive device for receiving at least one sensing signal generated by the position sensitive device when one or more objects touch a surface thereof; a touch state unit for detecting the sensing signal and determining a touch state of the object(s), such as approaching to or lifting off the position sensitive device; a position and multi-gesture processing unit for analyzing the sensing signal to determine a touch position of the object(s) on the position sensitive device, and tracking the touch state and touch position to determine a corresponding motion factor; and an output connected to the electronic device for outputting the touch state and touch position as well as information corresponding to a motion factor whenever the motion factor is determined.
1. A touch-control module connected to a position sensitive device and an electronic device, comprising:
an input connected to the position sensitive device for receiving at least one sensing signal generated by the position sensitive device when one or more objects are in the proximity of a surface of the position sensitive device;
a touch state unit configured to detect the sensing signal and determine touch state of the one or more objects, including approaching to or lifting off the position sensitive device;
a handwriting recognizing unit configured to track the touch state and the touch position for determining patterns manually written on the position sensitive device by the one or more objects;
a position and multi-gesture processing unit configured to analyze the sensing signal for determining touch position of the one or more objects associating to the position sensitive device, and to track the touch state and the touch position of the one or more objects for determining a corresponding motion factor, the position and multi-gesture processing unit comprising a position calculating element, a motion factor computing and recognizing element, and an encoding element, wherein a gesture comprises a sequence of multiple motion factors, the encoding element converts each motion factor of the gesture into a predefined unique code in order to produce a sequence of a plurality of unique codes corresponding to a gesture, and the electronic device reads the sequence of the plurality of unique codes for causing the electronic device to perform an action corresponding to the multiple motion factors of the gesture; and
an output connected to the electronic device for outputting the touch state and the touch position, and also information corresponding to the motion factor whenever the motion factor is determined, to the electronic device for causing the electronic device to perform an action.
2. The touch-control module as claimed in claim 1 , wherein, the position and multi-gesture processing unit also tracks the touch state and the touch position occurring time.
3. The touch-control module as claimed in claim 1 , wherein, if the number of objects on the position sensitive device is two or more, the position and multi-gesture processing unit can track the touch state and touch position of each of the objects one by one.
4. The touch-control module as claimed in claim 3 , wherein the position and multi-gesture processing unit can track relative positions among the objects.
5. The touch-control module as claimed in claim 3 , wherein the position and multi-gesture processing unit can track relative speed and moving direction among the objects.
6. The touch-control module as claimed in claim 2 , wherein the position and multi-gesture processing unit can track a first change tendency of the touch position within a first time period.
7. The touch-control module as claimed in claim 6 , wherein the position and multi-gesture processing unit can further track a second change tendency of the first change tendency within a second time period.
8. The touch-control module as claimed in claim 1 , wherein the handwriting recognizing unit refers to the sensing signal in recognizing the patterns.
9. The touch-control module as claimed in claim 1 , wherein the handwriting recognizing unit also tracks the motion factors for determining the patterns manually written on the position sensitive device by the one or more objects.