Abstract: In the fingerprint identification system according to the present disclosure, the fingerprint sensor collects multiple frames of fingerprint images sliding-inputted by a user, the judging unit determines whether, among the multiple frames of fingerprint images, there is a first overlap region between a current frame of fingerprint images and a previous frame of fingerprint images; if yes, the judging unit removes the first overlap region from the current frame of fingerprint images and superposes the previous frame of fingerprint images with the current frame of fingerprint images to form a superposed fingerprint image; the judging unit completes judgment of all the multiple frames of fingerprint images to obtain a template fingerprint image; the processing unit saves characteristic points of the complete template fingerprint image.

Abstract: In the fingerprint identification system according to the present disclosure, the fingerprint sensor collects multiple frames of fingerprint images sliding-inputted by a user, the judging unit determines whether, among the multiple frames of fingerprint images, there is a first overlap region between a current frame of fingerprint images and a previous frame of fingerprint images; if yes, the judging unit removes the first overlap region from the current frame of fingerprint images and superposes the previous frame of fingerprint images with the current frame of fingerprint images to form a superposed fingerprint image; the judging unit completes judgment of all the multiple frames of fingerprint images to obtain a template fingerprint image; the processing unit saves characteristic points of the complete template fingerprint image.

Abstract: A method of identifying a rotation gesture comprises detecting one or more induction signals induced by one or more pointing objects that come into contact with a touch-sensitive surface, determining the number of pointing objects, detecting movement statuses of the detected pointing objects, determining a rotation gesture performed by the pointing objects based on the movement statuses, generating a control signal associated with the determined rotation gesture and executing the rotation gesture in response to the generated control signal.

Abstract: A method for detecting one or more objects is disclosed. In one embodiment, the method comprises the steps of: receiving one or more induction signals caused by at least one object along one or more directions; comparing each received induction signal with a reference to detect at least one upward trend and/or at least one downward trend in the induction signal; and determining the number of objects based on the number of upward trend and/or downward trend in each received induction signal. A device for detecting one or more objects on a touch device is also disclosed.

Abstract: A method of identifying a shifting gesture comprises detecting one or more induction signals induced by one or more pointing objects that come into contact with a touch-sensitive surface, determining the number of the pointing objects that come into contact with the touch-sensitive surface, recording moving status and coordinates of each pointing object in an instance in which the number of the pointing objects is larger than a preset number, determining whether one pointing object moves in a direction parallel to the direction that another pointing object moves in according to the recorded moving status and the coordinates of the pointing objects and generating control signals to execute a gesture associated with the determined result.

Abstract: A method of identifying a rotation gesture comprises detecting one or more induction signals induced by one or more pointing objects that come into contact with a touch-sensitive surface, determining the number of the pointing object that come into contact with a touch screen, determining a rotation gesture performed by the pointing objects if the number of the pointing object is more than one, generating a control signal associated with the determined rotation gesture and executing a rotation command in response to the generated control signal.

Abstract: A method of identifying a rotation gesture comprises detecting one or more induction signals induced by one or more pointing objects that come into contact with a touch-sensitive surface, determining the number of pointing objects, detecting movement statuses of the detected pointing objects, determining a rotation gesture performed by the pointing objects based on the movement statuses, generating a control signal associated with the determined rotation gesture and executing the rotation gesture in response to the generated control signal.

Abstract: A method of identifying a scaling gesture comprises detecting one or more induction signals induced by one or more pointing objects that come into contact with a touch-sensitive surface, determining the number of the pointing object, determining a scaling gesture, generating a control signal associated with the determined scaling gesture and executing the scaling gesture in response to the generated control signal.

Abstract: A method of identifying gestures on a touchpad comprises determining a first time interval between receipt and drop in a first contact signal induced by a first contact with the touchpad, recording a first start touch point and a first end touch point associated with the receipt and drop in the first contact signal, determining a gesture according to the first time interval, the first start touch point and the first end touch point and generating a control signal associated with the determined gesture.

Abstract: A method for detecting one or more objects is disclosed. In one embodiment, the method comprises the steps of: receiving one or more induction signals caused by at least one object along one or more directions; comparing each received induction signal with a reference to detect at least one upward trend and/or at least one downward trend in the induction signal; and determining the number of objects based on the number of upward trend and/or downward trend in each received induction signal. A device for detecting one or more objects on a touch device is also disclosed.