Abstract: An antenna structure includes a base, a first radiator, and a second radiator. The base is configured to be rotatably connected to a remote controller body of a remote controller of an unmanned aerial vehicle (UAV) system. One ends of the first radiator and the second radiator are connected to the base, and other ends of the first radiator and the second radiator extend away from the base. The first radiator and the second radiator are fixedly connected to the base in a rotation direction relative to the remote controller body and are configured to rotate simultaneously with the base in the rotation direction.

Abstract: A method of managing digital rights in a network without a central license server where each instance of the program broadcasts its identification into the network, and any instance of the program detecting its own license code from another node closes down. A closing program may also generate a close down message to the conflicting program.

Abstract: A system for discovering, identifying and managing ad hoc networks and facilitating the communications within that network is disclosed. An addition to the network interface mediates discovery of adjacent computers with the same addition running and the exchange of profiles between these computers to allow device sharing and routing.

Abstract: A method of managing digital rights in a network without a central license server where each instance of the program broadcasts its identification into the network, and any instance of the program detecting its own license code from another node closes down. A closing program may also generate a close down message to the conflicting program.