Abstract: A power transmitting apparatus, a power receiving apparatus, and methods thereof are provided, which can make a certain amount of power, that is set by the transmitting apparatus or the receiving apparatus, be transmitted and received in transmitting and receiving the power by wire or wirelessly between the apparatuses. The power transmitting apparatus includes a power transmitting unit configured to transmit power of a provided battery to a power receiving apparatus; a confirmation unit configured to confirm at least one of a residual amount of the battery, a transmitted amount of the power, an amount of power that is received by the power receiving apparatus, a charge amount of the power receiving apparatus, and an accumulated time for which the power is being transmitted; and a control unit configured to control transmission of the power through comparison of the result of the confirmation with a predetermined threshold value.

Abstract: A power transmitting apparatus, a power receiving apparatus, and methods thereof are provided, which can make a certain amount of power, that is set by the transmitting apparatus or the receiving apparatus, be transmitted and received in transmitting and receiving the power by wire or wirelessly between the apparatuses. The power transmitting apparatus includes a power transmitting unit configured to transmit power of a provided battery to a power receiving apparatus; a confirmation unit configured to confirm at least one of a residual amount of the battery, a transmitted amount of the power, an amount of power that is received by the power receiving apparatus, a charge amount of the power receiving apparatus, and an accumulated time for which the power is being transmitted; and a control unit configured to control transmission of the power through comparison of the result of the confirmation with a predetermined threshold value.

Abstract: Provided are an apparatus and method for transmitting multimedia contents and a system and method for relaying multimedia contents, and more particularly, an apparatus for transmitting multimedia contents, the apparatus generating an image using a camera therein when receiving a call channel request signal from a requesting terminal and transmitting the generated image to the requesting terminal, a method of transmitting multimedia contents, and a system and method for relaying multimedia contents.