Abstract: A method of transmitting data performed by a server through a network, a method of transmitting data in an ad hoc network, a server, and a data transmitting system are provided. The method of transmitting data performed by a server through a network includes receiving and storing data from a device of a first user; detecting that a device of a second user accesses the server; selecting data from the stored data based on user information; processing the selected data to be optimized for the device of the second user; and transmitting the processed data to the device of the second user, wherein the server is configured to combine data received from a plurality of devices of the first user and transmit the combined data to the device of the second user.

Abstract: A method of transmitting data performed by a server through a network, a method of transmitting data in an ad hoc network, a server, and a data transmitting system are provided. The method of transmitting data performed by a server through a network includes receiving and storing data from a device of a first user; detecting that a device of a second user accesses the server; selecting data from the stored data based on user information; processing the selected data to be optimized for the device of the second user; and transmitting the processed data to the device of the second user, wherein the server is configured to combine data received from a plurality of devices of the first user and transmit the combined data to the device of the second user.

Abstract: A data transmission method, a server and a data transmission system are provided. The data transmission method includes receiving data, storing data, selecting data based on device information, and transmitting the selected data, resulting in a more convenient sharing and utilization of data.

Abstract: A content managing method of a mobile device, a server, and a system is provided. According to the content managing method, when the mobile device enters into a specific region, the mobile device transmits location information of the location of the mobile device and device information of the mobile device to the server, and the server searches for and transmits content information corresponding to the location information to the mobile device. Accordingly, a user can receive the content information simply by entering into a specific location with the mobile device.

Abstract: An apparatus and a method for reducing wireless data transmission in a personal area network is configured to generate and transmit a packet including information discriminating between a synchronous channel and a data channel. The apparatus and method discriminate between the synchronous channel and data channel when receiving a packet in order to improve data transmission performance of a human body communication system. The apparatus and the method use a transmission channel whose frequency is lower than an antenna frequency as a synchronous channel, and use a transmission channel whose frequency is higher than the antenna frequency as a data channel.

Abstract: The present invention proposes a method for transmitting data considering a non-contact state of a human body, while selecting a central frequency in various ranges in the human body communication system. To this end, a first embodiment of the present invention proposes a human body communication system in which a central frequency can be simply moved, and specifically, proposes a data transmission apparatus comprising a frequency shifter which shifts the output of a multiplexer into a specified frequency so as to enable the central frequency to be moved. In addition, a second embodiment of the present invention proposes a human body communication system which controls not only central frequency selection and transmission band minimization, but also a data rate, modulation, etc, and thus can perform stable communication in a non-contact state of a human body. Through this, it is possible to maximize the band efficiency, and to transmit data considering a non-contact state of a human body.

Abstract: Provided is a receiving apparatus for processing an analog baseband signal in an information terminal that communicates using a dielectric. The receiving apparatus includes an electrode for receiving an electric-field signal; a first gain adjuster for gain adjustment by amplifying the received signal; a channel selection filter for selecting a signal corresponding to a receive channel bandwidth from the gain-adjusted signal; a second gain adjuster for gain adjustment by amplifying the selected signal; a comparator for converting a signal output from the second gain adjuster into a digital signal; an oversampler for oversampling the digital signal at a frequency fClock higher than a receive channel frequency fSignal; a demodulator for demodulating the oversampled signal; and a clock generator for providing necessary a clock signal to the oversampler and the demodulator.

Abstract: According to the present invention, a communication apparatus comprises: a preamble generator which generates a pseudo-random code; a band shaping code generator which generates a band shaping code having a higher frequency than the pseudo-random code; a calculator which performs a calculation of the pseudo-random code and the band shaping code and outputs a preamble obtained through the calculation; and a multiplexer which multiplexes the preamble for synchronization with a second communication apparatus, a header, and data, and outputs a data frame obtained through the multiplexing.

Abstract: Provided is a receiving apparatus for processing an analog baseband signal in an information terminal that communicates using a dielectric. The receiving apparatus includes an electrode for receiving an electric-field signal; a first gain adjuster for gain adjustment by amplifying the received signal; a channel selection filter for selecting a signal corresponding to a receive channel bandwidth from the gain-adjusted signal; a second gain adjuster for gain adjustment by amplifying the selected signal; a comparator for converting a signal output from the second gain adjuster into a digital signal; an oversampler for oversampling the digital signal at a frequency fClock higher than a receive channel frequency fSignal; a demodulator for demodulating the oversampled signal; and a clock generator for providing necessary a clock signal to the oversampler and the demodulator.

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 content managing method of a mobile device, a server, and a system is provided. According to the content managing method, when the mobile device enters into a specific region, the mobile device transmits location information of the location of the mobile device and device information of the mobile device to the server, and the server searches for and transmits content information corresponding to the location information to the mobile device. Accordingly, a user can receive the content information simply by entering into a specific location with the mobile device.

Abstract: The present invention proposes a method for transmitting data considering a non-contact state of a human body, while selecting a central frequency in various ranges in the human body communication system. To this end, a first embodiment of the present invention proposes a human body communication system in which a central frequency can be simply moved, and specifically, proposes a data transmission apparatus comprising a frequency shifter which shifts the output of a multiplexer into a specified frequency so as to enable the central frequency to be moved. In addition, a second embodiment of the present invention proposes a human body communication system which controls not only central frequency selection and transmission band minimization, but also a data rate, modulation, etc, and thus can perform stable communication in a non-contact state of a human body. Through this, it is possible to maximize the band efficiency, and to transmit data considering a non-contact state of a human body.

Abstract: A data transmission method, a server and a data transmission system are provided. The data transmission method includes receiving data, storing data, selecting data based on device information, and transmitting the selected data, resulting in a more convenient sharing and utilization of data.

Abstract: An apparatus and a method for reducing wireless data transmission in a personal area network is configured to generate and transmit a packet including information discriminating between a synchronous channel and a data channel. The apparatus and method discriminate between the synchronous channel and data channel when receiving a packet in order to improve data transmission performance of a human body communication system. The apparatus and the method use a transmission channel whose frequency is lower than an antenna frequency as a synchronous channel, and use a transmission channel whose frequency is higher than the antenna frequency as a data 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 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: 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.