Abstract: The present invention is related to a pulse frequency modulation for induction charge device, which comprises a pulse frequency modulation for induction charge device being provided to charge a portable electronic device, wherein, the portable electronic device comprises a induction coil, which comprises: an electric magnetic field generate and the secondary coil react circuit; a detection and modulation generate circuit; and a control switch circuit; whereby, the detection and modulation generate circuit could generate pulse singles with various frequencies according to the load varying generated due to distance varying between the portable electronic device and the charged device, and charge to the portable electronic device according the pulse singles so as to reach the goal of effective management the power.

Abstract: The present invention relates to an antenna structure of a wireless receiver arranged to be connected to a computer, and which can be disposed alternatively in vertical and horizontal orientations for receiving control signals from an input device. The receiver has a circuit board and a antenna which has at least an antenna loop located outside the circuit board. The antenna loop is tilted at an angle of between 15-75 degrees relative to the circuit board.

Abstract: The present invention relates to an antenna structure of a wireless receiver arranged to be connected to a computer, and which can be disposed alternatively in vertical and horizontal orientations for receiving control signals from an input device. The receiver has a circuit board and a antenna which has at least an antenna loop located outside the circuit board. The antenna loop is tilted at an angle of between 15–75 degrees relative to the circuit board.

Abstract: The present invention is related to a pulse frequency modulation for induction charge device, which comprises a pulse frequency modulation for induction charge device being provided to charge a portable electronic device, wherein, the portable electronic device comprises a induction coil, which comprises: an electric magnetic field generate and the secondary coil react circuit; a detection and modulation generate circuit; and a control switch circuit; whereby, the detection and modulation generate circuit could generate pulse singles with various frequencies according to the load varying generated due to distance varying between the portable electronic device and the charged device, and charge to the portable electronic device according the pulse singles so as to reach the goal of effective management the power.