Abstract: An electronic apparatus is provided. The electronic apparatus includes an output circuit, an input circuit, and a processor. The output circuit is connected to plural speaker devices. The processor controls the output circuit to cause each of the speaker devices to output an audio signal, and identifies whether each of the speaker devices is connected based on the audio signal received through the input circuit.

Abstract: An electronic apparatus is provided. The electronic apparatus includes an output circuit, an input circuit, and a processor. The output circuit is connected to plural speaker devices. The processor controls the output circuit to cause each of the speaker devices to output an audio signal, and identifies whether each of the speaker devices is connected based on the audio signal received through the input circuit.

Abstract: An image processing system in which an image display apparatus and a peripheral device perform bidirectional communication through a single communication line, including a peripheral device connected to a first side of the communication line, the peripheral device being configured to provide a first signal to the communication line; and an image display apparatus connected to a second side of the communication line, the image display apparatus being configured to provide a second signal to the communication line, and to selectively allow the communication line to conduct electricity based on a state of at least one from among the first signal and the second signal in order to perform the bidirectional communication.

Abstract: A display apparatus, a paid broadcast processing apparatus, and a control method thereof are provided. The display apparatus includes: a tuner configured to receive at least one broadcast signal through at least one broadcast channel; a signal processor configured to signal-process the received at least one broadcast signal; a display configured to display the signal-processed at least one broadcast signal; an interface connected with at least one paid broadcast processing apparatus which descrambles at least one paid broadcast signal; and a controller configured to control the signal processor to signal-process the received at least one broadcast signal into a form that is displayable through the display, and, when the received at least one broadcast signal is the at least one paid broadcast signal, transmit the at least one paid broadcast signal to the paid broadcast processing apparatus through the interface.

Abstract: A universal serial bus (USB) device, an electronic apparatus including the same and a control method thereof are provided. The electronic apparatus includes a signal transceiver configured to transmit and receive a signal to and from an external apparatus; a first processor configured to communicate with the external apparatus; a switching unit configure to selectively supply a signal generating power to a signal transmission line between the signal transceiver and the first processor; a second processor configured to control the switching unit to generate a conversion signal corresponding to a predetermined event signal if the signal received from the external apparatus comprises the predetermined event signal; and a third processor configured to control the first processor to communicate with the external apparatus if the conversion signal is received.

Abstract: An image processing system in which an image display apparatus and a peripheral device perform bidirectional communication through a single communication line, including a peripheral device connected to a first side of the communication line, the peripheral device being configured to provide a first signal to the communication line; and an image display apparatus connected to a second side of the communication line, the image display apparatus being configured to provide a second signal to the communication line, and to selectively allow the communication line to conduct electricity based on a state of at least one from among the first signal and the second signal in order to perform the bidirectional communication.

Abstract: A display apparatus and a method for updating time information thereof are provided. The display apparatus includes a display, a power supply configured to supply power to a controller in response to alternating current (AC) power being supplied to the display apparatus, a tuner configured to receive a broadcast signal from an external source, and a controller configured to control the power supply to supply power to the tuner, to extract time information from the broadcast signal received from the tuner, and to update time information of the display apparatus based on the extracted time information, in response to AC power supply to the display apparatus being detected.

Abstract: A display apparatus includes a communicator which is configured to transmit and receive signals to and from a signal receiver; an image processor which is configured to process an image; a display unit which configured to display the processed image; a storage which is configured to store characteristic information of a channel corresponding to the image; and a controller which is configured to transmit a control signal for changing the channel to the signal receiver, extract channel information contained in a signal received from the signal receiver after transmitting the control signal, compare the extracted channel information and the characteristic information of the channel, and control the channel to be changed based on comparison results.

Abstract: A display apparatus and a method for updating time information thereof are provided. The display apparatus includes a display, a power supply configured to supply power to a controller in response to alternating current (AC) power being supplied to the display apparatus, a tuner configured to receive a broadcast signal from an external source, and a controller configured to control the power supply to supply power to the tuner, to extract time information from the broadcast signal received from the tuner, and to update time information of the display apparatus based on the extracted time information, in response to AC power supply to the display apparatus being detected.

Abstract: An electronic apparatus and a controlling method thereof are provided. The electronic apparatus includes an interface configured to connect an external apparatus and a controller configured to determine a type of the external apparatus connected to the interface, and in response to a mode of the electronic apparatus being converted to a standby mode, to control power of the interface based on the determined type of the external apparatus.

Abstract: A satellite broadcasting receiving apparatus is provided. The apparatus includes a storage configured to store satellite channel information, a multituner configured to include a plurality of tuners to be connected to a satellite broadcasting cable, a signal processor configured to process a satellite broadcasting signal received through the multituner, and a controller configured to search a tuner to which the satellite broadcasting cable is connected among the plurality of tuners using the satellite channel information, and connect the searched tuner and the signal processor.

Abstract: A display apparatus, a paid broadcast processing apparatus, and a control method thereof are provided. The display apparatus includes: a tuner configured to receive at least one broadcast signal through at least one broadcast channel; a signal processor configured to signal-process the received at least one broadcast signal; a display configured to display the signal-processed at least one broadcast signal; an interface connected with at least one paid broadcast processing apparatus which descrambles at least one paid broadcast signal; and a controller configured to control the signal processor to signal-process the received at least one broadcast signal into a form that is displayable through the display, and, when the received at least one broadcast signal is the at least one paid broadcast signal, transmit the at least one paid broadcast signal to the paid broadcast processing apparatus through the interface.

Abstract: A display apparatus includes a communicator which is configured to transmit and receive signals to and from a signal receiver; an image processor which is configured to process an image; a display unit which configured to display the processed image; a storage which is configured to store characteristic information of a channel corresponding to the image; and a controller which is configured to transmit a control signal for changing the channel to the signal receiver, extract channel information contained in a signal received from the signal receiver after transmitting the control signal, compare the extracted channel information and the characteristic information of the channel, and control the channel to be changed based on comparison results.

Abstract: A communication system is provided, including a first master device to operate as a master of a communication according to a first protocol, a second master device to operate as a master of a communication according to a second protocol, a common slave device to operate as a slave of the communication according to the first protocol and the second protocol with respect to the first master device and the second master device, and a switch to control a connection between the common slave device and the first master device and between the common slave device and the second master device for a communication between the common slave device and one of the first master device to and the second master device. Thus, embodiments of the present invention provide a communication system that minimizes cost increases and improves communication speed in a system in which a plurality of master devices communicate with a slave device performing the same function as the master devices.

Abstract: A serial data receiving apparatus includes a transistor, a resistor, and a diode, converts input data of an RS232 standard to data of a TTL/CMOS standard.

Abstract: A serial data receiving apparatus includes a transistor, a resistor, and a diode, converts input data of an RS232 standard to data of a TTL/CMOS standard.

Abstract: A communication system is provided, including a first master device to operate as a master of a communication according to a first protocol, a second master device to operate as a master of a communication according to a second protocol, a common slave device to operate as a slave of the communication according to the first protocol and the second protocol with respect to the first master device and the second master device, and a switch to control a connection between the common slave device and the first master device and between the common slave device and the second master device for a communication between the common slave device and one of the first master device to and the second master device. Thus, embodiments of the present invention provide a communication system that minimizes cost increases and improves communication speed in a system in which a plurality of master devices communicate with a slave device performing the same function as the master devices.

Abstract: An RS-232 transmitter apparatus includes first and second power supplies to respectively supply a first voltage and a second voltage which are based on the RS-232 standard and are different from each other; an input terminal to receive a signal from an external source; and a switching part to select the first power supply or the second power supply according to levels of the signal inputted through the input terminal so as to supply one of the first voltage and the second voltage. With this configuration, the present inputted through the input terminal provides an RS-232 transmitter apparatus which can perform RS-232 communication without an RS-232 transmitter IC including a charge pump, thereby reducing material cost.