Abstract: A method of generating control commands for an electronic device based on signal accumulation amount of sensors is provided in the invention. The method collects effective signal values using sensor(s) in the electronic device when physical quantities, generated or detected by the electronic device, change during the movement of the electronic device. As one or more effective signal values are accumulated to a certain amount that match the comparison with one activation mode or index parameter, the electronic devices then performs corresponding function accordingly.

Abstract: The disclosure is related to a method for identifying handwriting track and a system thereof. The system includes a handwriting device and the control circuits, and the function modules for sensing angular velocity, data sampling, and track comparison. The system samples signals generated by the handwriting device receiving the angular velocity signals. Multiple sampling values within a period of time are obtained. In addition to acquiring the data relating rotation and movement, a rhythm indicating the relationship among the multiple sampling values is also obtained. A handwriting track is depicted according to the angular velocity and angular displacement for every sampling point. The attribute of the handwriting track is therefore the rhythm data recording variance of sampling values per unit time. The system renders modes of handwriting recognition, and character or command input.

Abstract: The present disclosure provides a method to estimate the charging time of a lithium-ion battery comprising: obtaining a temperature (T), a charging current (Ic) and a charging voltage (V) of the lithium-ion battery during a charging procedure, wherein during the charging procedure the lithium-ion battery is firstly charged in a constant-current charging mode (CC Mode) with a constant-current (I) and then charged in a constant-voltage charging mode (CV Mode); when the lithium-ion battery is charged in the constant-current charging mode, obtaining a constant-current charging time (tcc) and obtaining a constant-voltage full charging time (tcv) in the constant-voltage charging mode according to the temperature, so as to obtain a charging remain time of the lithium-ion battery; and when the lithium-ion battery enters the constant-voltage charge mode, obtaining a constant-voltage charging remain time (tcv?) according to the temperature and the charging current.