Abstract: A fuel cell system and a method of controlling the system are provided. The fuel cell system includes: a fuel cell having a plurality of cells to generate power through a reaction between hydrogen supplied to an anode space and oxygen supplied to a cathode space; a power storage device to be charged with power generated by the fuel cell or discharged to supply power; and a controller. The controller recirculates hydrogen, diffused from the anode space to the cathode space, into the anode space by supplying power charged in the power storage device to the fuel cell when the power generation of the fuel cell is stopped. The controller is configured to control whether to supply the power to the fuel cell based on a pressure measured in the anode space and voltages of the cells that constitute the fuel cell.

Abstract: A method and system for providing a picture as caller ID (Identification). In a mobile communication system having a first mobile station (MS) on a calling side, a second MS on a called side, and a base station (BS) and an MSC that enable communication between the first and second MSs, the MSC has a storage component that stores picture information of each MS. The MSC receives a SETUP message from the first MS via the BS during a call attempt by the first MS, checks whether the picture information of the first MS is stored in the storage component in response to the SETUP message, and transmits the picture information of the first MS to the second MS so that the picture information of the first MS can be displayed as the caller ID on a display of the second MS, if the picture information of the first MS is stored in the storage component of the MSC.

Abstract: A method for displaying caller information using image data in a mobile telecommunications system. If a call origination has occurred, a calling user element sets up a voice data channel with a called user element and forms a data path with the called user element to transmit caller image information. Then, the calling user element transmits the caller image information to the called user element over the data path.

Abstract: A method for displaying caller information using image data in a mobile telecommunications system. If a call origination has occurred, a calling user element sets up a voice data channel with a called user element and forms a data path with the called user element to transmit caller image information. Then, the calling user element transmits the caller image information to the called user element over the data path.

Abstract: A method and system for providing a picture as caller ID (Identification). In a mobile communication system having a first mobile station (MS) on a calling side, a second MS on a called side, and a base station (BS) and an MSC that enable communication between the first and second MSs, the MSC has a storage component that stores picture information of each MS. The MSC receives a SETUP message from the first MS via the BS during a call attempt by the first MS, checks whether the picture information of the first MS is stored in the storage component in response to the SETUP message, and transmits the picture information of the first MS to the second MS so that the picture information of the first MS can be displayed as the caller ID on a display of the second MS, if the picture information of the first MS is stored in the storage component of the MSC.