Abstract: A cooking apparatus is disclosed. The cooking apparatus may include a cooking compartment in which food is placed, a control substrate configured to receive an input of user manipulation, a communicator configured to receive cooking data from an external electronic device by a wireless communication method, and be mounted on a backside of the control substrate and a processor configured to perform cooking based on at least one of the user manipulation input through the control substrate and the received cooking data.

Abstract: A washing machine having a balancer and a control method thereof which achieve correct communication between a controller and a balancing module such that a balancing module is correctly shifted to a target position. The control method of the washing machine includes measuring a first time between position detection time points of the balancing modules during rotation of the rotary tub when the plurality of balancing modules is in a static mode, measuring a second time between position detection time points of the balancing modules during rotation of the rotary tub when any one of the balancing modules is shifted by a predetermined distance through a movement command, and confirming a relationship between a module ID of any one of the balancing modules and a communication ID of the movement command through a relative variation of the second time with respect to the first time.

Abstract: A washing machine having a balancer housing capable of transmitting electric power from an external power source to a balancing module. The washing machine includes a rotary drum, and a balancer to counterbalance an unbalanced load generated in the rotary drum. The balancer includes a balancer housing mounted to the rotary drum, and a balancing module having a moving unit to move inside the balancer housing. The balancer housing includes an electrode provided at an inner surface of the balancer housing in a circumferential direction thereof in order to transmit electric power to the moving unit of the balancing module, an electric wire electrically connected to the electrode in order to apply electric power from an external power source to the electrode, and a connector provided at an outer surface of the balancer housing in order to electrically connect the electric wire and the electrode.

Abstract: An indoor unit and an air conditioning system using the same include a first communication module to communicate with a wired remote controller, a power switch connected to a power terminal of one or the other side of the first communication module, a ground switch connected to a ground terminal of one or the other side of the first communication module to constitute a pair with the power switch, and an indoor unit controller to turn on the power switch and the ground switch when an indoor unit supplies power to the wired remote controller, and to turn off the power switch and the ground switch when another indoor unit supplies power to the wired remote controller.

Abstract: An air conditioner is provided. The air conditioner includes at least one outdoor unit, a plurality of indoor units, and at least one remote controller to receive operation commands for the plural indoor units. One of the plural indoor units may be selected as a power-supplying indoor unit to supply electric power to the at least one remote controller, based on voltage values of electric power to be supplied from the plural indoor units to the at least one remote controller. The selected indoor unit supplies electric power to the at least one controller. The air conditioner enables a supply of electric power with a sufficiently high voltage to a remote controller by supplying electric power to the remote controller by one indoor unit exhibiting a highest voltage value of electric power to be supplied to the remote controller, as compared to other indoor units.

Abstract: An air conditioner includes at least one indoor unit and a wired controller connected to the indoor unit through two lines to receive power from the indoor unit and to perform data communication with the indoor unit. Each of the indoor unit and the wired controller includes a communication unit that modulates a low-frequency communication signal into a high-frequency communication signal and transmits the high-frequency signal and demodulates a received high-frequency signal into a low-frequency signal. When a plurality of indoor units and a wired controller perform communication, a communication signal is transmitted after being modulated into a high-frequency signal and linking the high-frequency signal with DC power. This reduces the inductance of an inductor required to separate the linked high-frequency signal into DC power and a communication signal and the capacitance of a capacitor required to link the signal with DC power, reducing PCB size and inductor and capacitor costs.

Abstract: An indoor unit performs a control operation to not supply power to a load device through a power/communication line simultaneously with other indoor units. An air conditioning system may includes an indoor unit including a microcomputer to output a power application signal to supply power to a load device through a power/communication line, and a duplicate power application prevention unit to interrupt the power application signal from the microcomputer when the power is simultaneously applied to the power/communication line by a different indoor unit, to prevent the power from being duplicately applied to the power/communication line.

Abstract: An air conditioner is provided. The air conditioner includes at least one outdoor unit, a plurality of indoor units, and at least one remote controller to receive operation commands for the plural indoor units. One of the plural indoor units may be selected as a power-supplying indoor unit to supply electric power to the at least one remote controller, based on voltage values of electric power to be supplied from the plural indoor units to the at least one remote controller. The selected indoor unit supplies electric power to the at least one controller. The air conditioner enables a supply of electric power with a sufficiently high voltage to a remote controller by supplying electric power to the remote controller by one indoor unit exhibiting a highest voltage value of electric power to be supplied to the remote controller, as compared to other indoor units.

Abstract: An indoor unit and an air conditioning system using the same include a first communication module to communicate with a wired remote controller, a power switch connected to a power terminal of one or the other side of the first communication module, a ground switch connected to a ground terminal of one or the other side of the first communication module to constitute a pair with the power switch, and an indoor unit controller to turn on the power switch and the ground switch when an indoor unit supplies power to the wired remote controller, and to turn off the power switch and the ground switch when another indoor unit supplies power to the wired remote controller.

Abstract: A refrigerator includes storage chambers storing foods, cooling devices cooling the storage chambers, a display unit displaying a picture to manage foods, a communication unit receiving product information of products purchased by a user from a seller server, and a control unit extracting product information of food items purchased by the user from the product information of the products and controlling the display unit so as to display food management information generated based on the extracted product information of the food items. The refrigerator may display management information of the food items purchased by the user without separate input of the product information of the food items purchased by the user.

Abstract: A washing machine having a balancer and a control method thereof which achieve correct communication between a controller and a balancing module such that a balancing module is correctly shifted to a target position. The control method of the washing machine includes measuring a first time between position detection time points of the balancing modules during rotation of the rotary tub when the plurality of balancing modules is in a static mode, measuring a second time between position detection time points of the balancing modules during rotation of the rotary tub when any one of the balancing modules is shifted by a predetermined distance through a movement command, and confirming a relationship between a module ID of any one of the balancing modules and a communication ID of the movement command through a relative variation of the second time with respect to the first time.

Abstract: A washing machine having a balancer housing capable of transmitting electric power from an external power source to a balancing module. The washing machine includes a rotary drum, and a balancer to counterbalance an unbalanced load generated in the rotary drum. The balancer includes a balancer housing mounted to the rotary drum, and a balancing module having a moving unit to move inside the balancer housing. The balancer housing includes an electrode provided at an inner surface of the balancer housing in a circumferential direction thereof in order to transmit electric power to the moving unit of the balancing module, an electric wire electrically connected to the electrode in order to apply electric power from an external power source to the electrode, and a connector provided at an outer surface of the balancer housing in order to electrically connect the electric wire and the electrode.

Abstract: An air conditioner includes at least one indoor unit and a wired controller connected to the indoor unit through two lines to receive power from the indoor unit and to perform data communication with the indoor unit. Each of the indoor unit and the wired controller includes a communication unit that modulates a low-frequency communication signal into a high-frequency communication signal and transmits the high-frequency signal and demodulates a received high-frequency signal into a low-frequency signal. When a plurality of indoor units and a wired controller perform communication, a communication signal is transmitted after being modulated into a high-frequency signal and linking the high-frequency signal with DC power. This reduces the inductance of an inductor required to separate the linked high-frequency signal into DC power and a communication signal and the capacitance of a capacitor required to link the signal with DC power, reducing PCB size and inductor and capacitor costs.

Abstract: An indoor unit performs a control operation to not supply power to a load device through a power/communication line simultaneously with other indoor units. An air conditioning system may includes an indoor unit including a microcomputer to output a power application signal to supply power to a load device through a power/communication line, and a duplicate power application prevention unit to interrupt the power application signal from the microcomputer when the power is simultaneously applied to the power/communication line by a different indoor unit, to prevent the power from being duplicately applied to the power/communication line.

Abstract: An air conditioner in which a Carrier Sensing Multiple Access/Collision Avoidance (CSMA/CA) algorithm is provided on a bidirectional RS-485 communication line, and a communication method thereof. The air conditioner includes an RS-485 communication module to transmit and receive data in an RS-485 communication mode, and a microcomputer to determine presence or absence of data on a communication line when data to be transmitted is generated, occupy the communication line if no data is present on the communication line, and then transmit the generated data to the communication line.

Abstract: An apparatus for setting a group of a sensor node and a method thereof. According to the apparatus and the method, intensity of a communication signal output from a sensor node is lowered, and the sensor node is set as a group of a master if the communication signal is received in the master, so that the sensor node can be exactly set as belonging to the group of the master.