Abstract: An input device is provided. The input device includes a communicator for communicating with an electronic device, a pen tip provided on one end portion of the input device, an electrode part provided at a position spaced apart at a predetermined interval from the pen tip, and a processor configured to apply a predetermined frequency signal to the electrode part, and control the communicator so as to transmit, to the electronic device, the signal of which frequency changed according to a capacitance formed between the electrode part and the electronic device.

Abstract: A method of performing adaptive mode switching in a transmitter of a dual mode simultaneous wireless information and power transmission (SWIPT) system, incudes receiving received power of a receiver in a channel; comparing the received power with a predetermined threshold value; selecting one of a single tone mode or a multi-tone mode as a single/multi-tone mode based on the comparison result; selecting a modulation index based on the selected single/multi-tone mode and the received power; and transmitting the selected single/multi-tone mode, the selected modulation index, and a duty cycle to the receiver. The duty cycle is determined based on at least one of power consumed for decoding a single tone signal, power consumed for decoding a multi-tone signal, and power harvested during the channel by the receiver.

Abstract: A method of calibrating a nanofluidic device including a plurality of nanopore channels, a plurality of gating nanoelectrodes, and a plurality of sensing nanoelectrodes, includes applying a selecting voltage across a gating nanoelectrode of the plurality of gating nanoelectrodes to select a nanopore channel. The method also includes tuning the nanopore channel by applying a first biasing voltage across a sensing electrode of the plurality of sensing nanoelectrodes, and receiving a plurality of currents over a plurality of frequencies. The method further includes generating a calibration data set from the pluralities of frequencies and currents. Moreover, the method includes comparing the calibration data set with a reference data set. In addition, the method includes when the calibration data set differs from the reference data set by more than a predetermined threshold, repeating the method with a second biasing voltage different from the first biasing voltage.

Abstract: Provided are a communication method based on a peak-to-average ratio (PAPR) and a transmission apparatus and a receive apparatus using the same and a communication method based on a peak-to-average ratio (PAPR) by a transmission apparatus according to an exemplary embodiment of the present disclosure includes: obtaining each of PAPR values corresponding to respective data symbols from a lookup table having a unique PAPR value; Generating a synchronization signal configured in a random sequence based on a the PAPR value of each data symbol; and transmitting the synchronization signal.

Abstract: The present disclosure relates to an adaptive mode switching method for simultaneous wireless power/information transmission operating in a dual mode and an apparatus for performing the same. The adaptive mode switching apparatus for simultaneous wireless power/information transmission operating in a dual mode includes: an energy harvesting unit; a single tone information receiving unit; a multi-tone information receiving unit; a time-division switch; and an adaptive mode switching control unit which determines a communication mode and a modulation index based on a battery status, the magnitude of the received signal, and a data transmission rate and controls the time-division switch in accordance with the selected communication mode and modulation index.

Abstract: A simultaneous wireless information and power transmission method includes: transmitting an energy transfer signal comprising a peak-to-average power ratio (PAPR) corresponding to information to be transmitted at a first side; measuring the PAPR by receiving the energy transfer signal at a second side; and recovering the information from the measured PAPR at the second side.

Abstract: A receiver that receives a simultaneous wireless information and power transfer (SWIPT) signal is provided. The receiver comprises an antenna configured to receive a SWIPT signal including a power signal and an information signal; an energy harvester configured to receive the SWIPT signal from the antenna when a communication mode is an energy harvesting (EH) mode; and an information decoder configured to receive the SWIPT signal from the antenna when the communication mode is an information decoding (ID) mode.

Abstract: Disclosed is an input device. The input device includes a communicator configured to communicate with an electronic device, a pen tip provided at one end of the input device, a first electrode portion including a plurality of first sub-electrodes spaced apart from each other by a predetermined distance from the pen tip, a second electrode portion including a plurality of second sub-electrodes spaced apart from each other to correspond to each of the plurality of first sub-electrodes at a position spaced apart from the first electrode portion by a predetermined distance, a processor to provide a driving signal to the first electrode portion and the second electrode portion, generate tilt information of the input device on the basis of a plurality of capacitances formed between the plurality of first sub-electrodes and the plurality of second sub-electrodes, and transmit the tilt information to the electronic device.

Abstract: The present disclosure relates to an adaptive mode switching method for simultaneous wireless power/information transmission operating in a dual mode and an apparatus for performing the same. The adaptive mode switching apparatus for simultaneous wireless power/information transmission operating in a dual mode includes: an energy harvesting unit; a single tone information receiving unit; a multi-tone information receiving unit; a time-division switch; and an adaptive mode switching control unit which determines a communication mode and a modulation index based on a battery status, the magnitude of the received signal, and a data transmission rate and controls the time-division switch in accordance with the selected communication mode and modulation index.

Abstract: Provided are a communication method based on a peak-to-average ratio (PAPR) and a transmission apparatus and a receive apparatus using the same and a communication method based on a peak-to-average ratio (PAPR) by a transmission apparatus according to an exemplary embodiment of the present disclosure includes: obtaining each of PAPR values corresponding to respective data symbols from a lookup table having a unique PAPR value; Generating a synchronization signal configured in a random sequence based on a the PAPR value of each data symbol; and transmitting the synchronization signal.

Abstract: Disclosed are a wireless power transfer apparatus, a wireless power receiving apparatus, a wireless power transfer method, a wireless power receiving method, a wireless power transfer system using a dual mode and a recording medium thereof.

Abstract: A duty cycle corrector includes a delay chain, an edge detector, a falling edge shift (FES) controller, a plurality of falling edge modulator (FEM) cores, and a phase interpolator. The delay chain delays a first clock to generate a delay clock, and generates first and second sampling control signals. The edge detector samples the first clock and a second clock using the first and second sampling control signals to obtain first and second sampling signals. The FES controller determines a modulation direction and a modulation width based on the first and second sampling signals. The plurality of FEM cores first modulate the first edge of the first clock and second modulate the first edge of the delay clock using the modulation direction and the modulation width. The phase interpolator performs phase interpolation on the results of the first and second modulations.

Abstract: Disclosed are an inductor layout and an integrated circuit device with improved isolation between inductors through shielding magnetic coupling between the inductors. first and second inductor coils are horizontally spaced apart from each other. A conductor loop is disposed in parallel above the first inductor coil and shields magnetic coupling between the first and second inductor coils in the manner that a part of magnetic flux of a first time-varying magnetic field generated by the second inductor coil is cancelled by magnetic flux of a second magnetic field generated by an induction current that flows in the conductor loop magnetically interlinked with the first time-varying magnetic field. The inductor layout can be applied to an RFIC device to reduce magnetic coupling between inductors of a power amplifier and an oscillator. Improved performance of the device and a very small RFIC can be achieved.

Abstract: Provided is a wireless power reception device including: a gate driver for generating a gate signal for switching between a turn-on voltage and a turn-off voltage; a rectifier connected to both ends of an inductor and including FETs whose on/off states are controlled by the gate signal; a rectifier output detection unit for sensing an output value of the rectifier; and an impedance control unit for controlling an impedance of the rectifier by controlling at least one of a duty ratio of the gate signal and a turn-on voltage for turning on the FET based on the output value.

Abstract: A method of charging a battery by a charging system comprising a master charging circuit and N (N is a natural number) slave charging circuits. The method includes: sourcing a first current to a single-wired bus by the master charging circuit; absorbing (sinking) a second current from the single-wired bus by the N slave charging circuits connected to the single-wired bus; identifying a single-wired bus voltage formed on the single-wired bus at a particular time point by the master charging circuit; and identifying the number of slave charging circuits based on the single-wired bus voltage by the master charging circuit.

Abstract: A duty cycle corrector includes a delay chain, an edge detector, a falling edge shift (FES) controller, a plurality of falling edge modulator (FEM) cores, and a phase interpolator. The delay chain delays a first clock to generate a delay clock, and generates first and second sampling control signals. The edge detector samples the first clock and a second clock using the first and second sampling control signals to obtain first and second sampling signals. The FES controller determines a modulation direction and a modulation width based on the first and second sampling signals. The plurality of FEM cores first modulate the first edge of the first clock and second modulate the first edge of the delay clock using the modulation direction and the modulation width. The phase interpolator performs phase interpolation on the results of the first and second modulations.

Abstract: Disclosed are a wireless power transfer apparatus, a wireless power receiving apparatus, a wireless power transfer method, a wireless power receiving method, a wireless power transfer system using a dual mode and a recording medium thereof.

Abstract: An electronic device is provided. The electronic device includes a receiving circuit configured to wirelessly receive power and output AC power, a rectifying circuit configured to rectify the AC power from the receiving circuit, wherein the rectifying circuit may include a first P-MOSFET configured to transfer a positive amplitude of power to an output terminal of the rectifying circuit while the AC power has the positive amplitude and to prevent transferring a negative amplitude of power to the output terminal of the rectifying circuit while the AC power has the negative amplitude, and a forward loss compensating circuit connected with the first P-MOSFET configured to reduce a threshold voltage of the first P-MOSFET while the AC power has the positive amplitude.

Abstract: A clock and data recovery circuit is disclosed herein. The clock and data recovery circuit includes a phase detection unit, a charge pump, a loop filter, a voltage control oscillator, and a frequency detection unit. The voltage control oscillator has oscillation frequency that is variable in response to a frequency adjustment signal, and outputs an oscillation signal. The frequency detection unit includes a reference clock divider, a counter, and an oscillation frequency control unit. The reference clock divider generates a count-enable signal based on a reference clock signal. The counter generates an oscillation count signal by counting the pulses of the oscillation signal of the voltage control oscillator or the pulses of divided signals resulting from dividing the oscillation signal while the count-enable signal is being enabled. The oscillation frequency control unit compares a target count value with the value of the oscillation count signal, and outputs the frequency adjustment signal.

Abstract: A method of forming a semiconductor device including a memory cell area having a plurality of memory cells and a peripheral circuit area for reading and writing data on the memory cells in the memory cell area of a semiconductor substrate is provided. Contact pads are formed on source/drain regions of transistors in the peripheral circuit area as well as in the memory cell area. The contact pads are concurrently formed on the source/drain regions of the transistors in the memory cell area and the peripheral circuit area. As a result, there is no step difference between the contact pads and, thus, it is easy to form metal contact plugs on the contact pads.