Abstract: An unmanned aerial vehicle (UAV) flying method for helping an UAV flying to a location of an owner of the UAV or flying to a predetermined place includes the following steps of: triggering the UAV into a hijacked mode; ascertaining if the UAV is capable of flying or not; the UAV flying to the location of the owner or to the predetermined place if the UAV is capable of flying; and, the UAV sending a distress signal to the owner if the UAV is not capable of flying. Therefore, the UAV is capable of flying back or sending information after entering the hijacked mode, so as to avoid or lower the loss caused by losing the UAV or the UAV being captured by the captor.

Abstract: The invention discloses a wireless music playing method, a wireless music playing system and a wireless music player, wherein the method includes the following steps. A digital media controller edits a play schedule and delivers the play schedule to a wireless music player, and the play schedule includes a playing time and corresponding location information of a music source. The wireless music player links to the corresponding location information of the music source to play music media data according to the playing time and the corresponding location information of the music source in the play schedule. The technical solution of the invention can simplify the operation of music playing and realize the automatically classified playing according to time.

Abstract: The invention discloses a wireless music playing method, a wireless music playing system and a wireless music player, wherein the method includes the following steps. A digital media controller edits a play schedule and delivers the play schedule to a wireless music player, and the play schedule includes a playing time and corresponding location information of a music source. The wireless music player links to the corresponding location information of the music source to play music media data according to the playing time and the corresponding location information of the music source in the play schedule. The technical solution of the invention can simplify the operation of music playing and realize the automatically classified playing according to time.

Abstract: A handheld device with a fast-charging capability is adapted to be connected to a charger to obtain an electric power. The handheld device includes a battery, a charging circuit, a safety circuit, a control unit, and an input module. The charging circuit is electrically connected to the charger and transfers an electric power to the battery. The safety circuit is used for restricting an upper limit of the electric power transferred by the charging circuit. The input module is provided for a user to input an emergency charge command. Upon receiving the emergency charge command, the control unit instructs the safety circuit to lower the restriction on the charging circuit, so as to raise the upper limit of the electric power that can be obtained by the charging circuit, thereby accelerating the charging of the battery.

Abstract: A handheld device with a fast-charging capability is adapted to be connected to a charger to obtain an electric power. The handheld device includes a battery, a charging circuit, a safety circuit, a control unit, and an input module. The charging circuit is electrically connected to the charger and transfers an electric power to the battery. The safety circuit is used for restricting an upper limit of the electric power transferred by the charging circuit. The input module is provided for a user to input an emergency charge command. Upon receiving the emergency charge command, the control unit instructs the safety circuit to lower the restriction on the charging circuit, so as to raise the upper limit of the electric power that can be obtained by the charging circuit, thereby accelerating the charging of the battery.

Abstract: A method of inputting a control instruction and a handheld device thereof are provided. The handheld device includes a memory unit, a touch module, and a recognition module. The method includes receiving a writing track input by the user from a touch module, analyzing the writing track by the recognition module to convert the writing track into a track data, and comparing the track data with a feature data stored in the memory unit to judge whether the two are consistent with each other, so as to determine whether to execute a program instruction corresponding to the feature data. Through the handheld device and method, when a user inputs a writing track, the handheld device activates a corresponding application program and specific actions thereof, so as to reduce the time of searching for the application program, thereby enhancing the practicability of the handheld device to the user.

Abstract: A position data exchange system comprises first and second mobile communication devices. The first communication device retrieves current coordinates of itself from a Global Positioning System (GPS) receiver and transmits the coordinates through a wireless communication channel from which the second communication device receives the coordinates. The second communication device displays data concerning the current location of the first communication device according to the coordinates and further provides navigation.

Abstract: A position data exchange system comprises first and second mobile communication devices. The first communication device retrieves current coordinates of itself from a Global Positioning System (GPS) receiver and transmits the coordinates through a wireless communication channel from which the second communication device receives the coordinates. The second communication device displays data concerning the current location of the first communication device according to the coordinates and further provides navigation.