Abstract: An electronic device including a housing including a grip portion; a memory included in the housing; a sensor located in the housing; and a controller configured to operate in a first mode in which content corresponding to a trajectory of a tip of the housing is stored in the memory, and operate in a second mode in which a command corresponding to the trajectory of the tip of the housing executes a specific function on the electronic device.

Abstract: The present invention relates to a tethering type head mounted display (HMD) which is connected to a mobile terminal and a method for controlling the HMD. The HMD, which is connected to a mobile terminal, comprises: a communication unit for performing wired or wireless communication with the mobile terminal; a display unit for outputting image information; a detection unit for detecting a movement of the HMD; and a control unit for controlling the display unit so as to output image information which is controlled according to the result of detecting a movement of the HMD, wherein, when one of predetermined situations occurs, the control unit controls the display unit so as to output image information which is controlled according to a movement detected in the mobile terminal, and when the situation that has occurred ends, the control unit controls the display unit so as to output image information which is controlled according to a movement of the HMD.

Abstract: An electronic device including a housing including a grip portion; a memory included in the housing; a sensor located in the housing; and a controller configured to operate in a first mode in which content corresponding to a trajectory of a tip of the housing is stored in the memory, and operate in a second mode in which a command corresponding to the trajectory of the tip of the housing executes a specific function on the electronic device.