Abstract: A camera for storing photographed images in a storage device connected to the camera through a network and a method of operating the storage device of the camera. The camera includes a photographing unit photographing an object to generate image data of the object; a transfer unit transferring the image data to a storage device to store the image data therein; and a storage device setting unit transferring the image data to at least one second storage device if it is determined that the first storage device is no longer able to store the image data while the image data is being transferred to and stored in the first storage device.

Abstract: A data communication system and a communication control method are provided. The data communication system includes a data transmission apparatus and a data receiving apparatus connected to each other through two or more parallel paths; and two or more routers disposed on the two or more parallel paths, respectively, wherein at least one of the routers detects bandwidth aggregation communication being performed on the parallel paths, from data transmitted through the at least one of the routers, and controls a sum of transmission rates used for the bandwidth aggregation communication to be lower than an upper-limit transmission rate during the bandwidth aggregation communication.

Abstract: A camera for storing photographed images in a storage device connected to the camera through a network and a method of operating the storage device of the camera. The camera includes a photographing unit photographing an object to generate image data of the object; a transfer unit transferring the image data to a storage device to store the image data therein; and a storage device setting unit transferring the image data to at least one second storage device if it is determined that the first storage device is no longer able to store the image data while the image data is being transferred to and stored in the first storage device.