Abstract: An embodiment of the present invention provides a stylus as an inputting device of a handwriting system. The stylus comprises a jog ball, a signal emitting circuit for emitting electromagnetic waves, an resonant circuit for determining the frequencies of the emitting electromagnetic waves, and a button and ball circuit that comprises a pair of sensing units respectively arranged at up and down side of the jog ball for tracking the rolling of the jog ball.

Abstract: An embodiment of the present invention provides a stylus as an inputting device of a handwriting system. The stylus comprises a jog ball, a signal emitting circuit for emitting electromagnetic waves, an resonant circuit for determining the frequencies of the emitting electromagnetic waves, and a button and ball circuit that comprises a pair of sensing units respectively arranged at up and down side of the jog ball for tracking the rolling of the jog ball.

Abstract: A large-sized electromagnetic digital broad with segmented frame antenna is provided, including at least an antenna turning board, at least an antenna multiplexer board, a physical antenna web, and a control board. The length of the antenna turning board is he same as the length of the antenna multiplexer board. The antenna turning boards and the antenna multiplexer boards are arranged to form a segmented frame antenna. The length and the width of the assembled large-sized digital board are a multiple of the length of the antenna turning board. Therefore, the size of the assembled digital board is not limited to any specific size, and is not limited by the size of the manufacturing machines.