Abstract: An apparatus and method for human body communication in a mobile communication system are provided. A portable terminal includes a human body communication module and a controller. The human body communication module performs human body communication. The controller performs a process to perform connection with an external device through the human body communication and then perform an operation executable through the human body communication.

Abstract: Disclosed is an apparatus and method for signal detection according to frequency bands used in an RFID system. The apparatus includes a low-noise amplifier for low-noise amplifying a received signal, a receiver unit for detecting a CW signal and a tag signal, a transmitter unit for frequency up-converting and outputting an input signal, a PLL for generating a frequency signal according to a transmission signal band or a reception signal band, a receiver unit switch for connecting the receiver unit with the low-noise amplifier or a directional coupler, an antennas switch for connecting the antenna with the directional coupler or low-noise amplifier, and a controller unit for controlling a frequency of the frequency signal generated by the PLL, turning off transmission power in a case of an LBT scheme, controlling the receiver unit switch and the antenna switch, and determining if a corresponding channel is an idle channel.

Abstract: A tactile input/output device and a driving method thereof are provided. The device includes at least one input end, at least one output end, and a controller. The input end includes a plurality of input cells arranged at regular intervals. The output end includes a plurality of output cells arranged at regular intervals. The controller senses an input signal of the input end and controls the output end to generate a corresponding output signal. The input end and the output end are installed to form one array with being separated. The input cell and the output cell are arranged so that they do not overlap with each other.

Abstract: An apparatus and method for human body communication in a mobile communication system are provided. A portable terminal includes a human body communication module and a controller. The human body communication module performs human body communication. The controller performs a process to perform connection with an external device through the human body communication and then perform an operation executable through the human body communication.

Abstract: An input apparatus and method for tactile sensing are disclosed. The input apparatus includes a sensor array for outputting input data in an array format according to a touch input, and a controller for obtaining first input data for a first input from the sensor array if the first input above a predetermined pressure is imposed on the sensor array, for obtaining second input data for a second input from the sensor array if the second input above a predetermined pressure is imposed on the sensor array, for generating third input data indicating an input characteristic by comparing the first input data and the second input data, and for operating according to a program based on the third input data.

Abstract: Disclosed is an apparatus and method for signal detection according to frequency bands used in an RFID system. The apparatus includes a low-noise amplifier for low-noise amplifying a received signal, a receiver unit for detecting a CW signal and a tag signal, a transmitter unit for frequency up-converting and outputting an input signal, a PLL for generating a frequency signal according to a transmission signal band or a reception signal band, a receiver unit switch for connecting the receiver unit with the low-noise amplifier or a directional coupler, an antennas switch for connecting the antenna with the directional coupler or low-noise amplifier, and a controller unit for controlling a frequency of the frequency signal generated by the PLL, turning off transmission power in a case of an LBT scheme, controlling the receiver unit switch and the antenna switch, and determining if a corresponding channel is an idle channel.

Abstract: A reception apparatus and method are provided for acquiring code timing by receiving pilot signals spread with allocated codes in a receiver using multiple antennas, wherein a transmitter using multiple antennas allocates different codes to pilot signals for transmitting through the respective antennas. The apparatus and method comprise receiving the spread pilot signals through the respective antennas; outputting estimated propagation delay values of the pilot signals transmitted from the respective antennas of the transmitter and peak values of matched filters for respective channels; and calculating new estimated propagation delay values by applying weights determined based on the peak values of matched filters for respective channels to the estimated propagation delay values, and acquiring code timing with the new estimated propagation delay values.

Abstract: Disclosed is a semiconductor chip comprising power pads for receiving power, a plurality of pad groups grouped according to functions in such a manner that each pad group includes at least one input/output pad, separated power rings connected to each of pad groups and for delivering power supplied from the power pads to each of the pad groups, and a switch control unit for determining usage states for input/output pads of the pad groups and for performing on/off control with respect to each of the pad groups. The pad group comprises at least simultaneously-operating input/output pad, and is grouped in such a manner that the pad group includes at least two pads sharing power supplied from one power pad. A switch control unit determines a usage state for each of the pad groups and, as a result of the determination, turns off input/output pads of an idle pad group.

Abstract: A circuit for reducing leakage current in a processor of an electronic apparatus, the processor having a joint test action group (JTAG) test terminal, is disclosed, which includes an initialization test pin included in the JTAG test terminal; a reset pin of the processor; and a semiconductor device connected between the initialization test pin and the reset pin, wherein the initialization test pin, the reset pin, and the semiconductor device are arranged to enable forward current to flow from the initialization test pin to the reset pin through the semiconductor device.

Abstract: A circuit for reducing leakage current in a processor of an electronic apparatus, the processor having a joint test action group (JTAG) test terminal, is disclosed, which includes an initialization test pin included in the JTAG test terminal; a reset pin of the processor; and a semiconductor device connected between the initialization test pin and the reset pin, wherein the initialization test pin, the reset pin, and the semiconductor device are arranged to enable forward current to flow from the initialization test pin to the reset pin through the semiconductor device.