Abstract: A positioning device and method using two transmirrors for positioning a moving robot which moves in an indoor environment is provided. The positioning device includes a transmitter transmitting signals to first and second transmirrors; a receiver receiving signals from the first and second transmirrors; and a positioning unit determining the position of the moving robot based on time intervals between time points when signals are transmitted to the first and second transmirrors and time points when signals are received from the first and second transmirrors. Accordingly, the number of transmirrors can be reduced, and synchronization between the moving robot and the transmirrors is not needed, so that it is possible to easily implement the positioning with lower cost.

Abstract: An apparatus and a method for providing a video content service in a vehicle are provided. The apparatus includes a speed detection unit detecting a speed of the vehicle using a global positioning system, a status detection unit detecting a status of a parking brake, and a video control unit controlling one or more display apparatuses so that an the video contents are displayed when the speed of the vehicle is determined to be below a predetermined speed based on information on the detected status of the parking brake and the detected speed of the vehicle. According to the present invention, various video contents can be provided to a driver and passengers while safety driving of the vehicle and the driver's concentration on driving are maintained.