Abstract: An operation method of a first communication node for transmitting a message in a vehicle-to-everything (V2X) communication network is provided. The method includes receiving information regarding a time period including a plurality of transmission slots from a second communication node and selecting one transmission slot included in the time period based on a first index configured based on the information regarding the time period. A message is transmitted through the one transmission slot and the information regarding the time period includes information regarding a number of the plurality of transmission slots included in the time period.

Abstract: An operation method of a first communication node in a communication network identifies a number of second communication nodes receiving messages in a first reception mode and a number of third communication nodes receiving messages in a second reception mode. A transmission mode is determined for transmitting a wireless access in vehicular environments service advertisement (WSA) message based on the identified numbers. A transmission period is then determined for transmitting the WSA message based on the transmission mode. The WSA message is transmitted based on the transmission mode and the transmission period. A protocol used for the first reception mode is different from a protocol used for the second reception mode.

Abstract: A bias circuit includes a bias current circuit and a temperature compensation circuit. The bias current circuit includes a first resistor and a first transistor, in a first current path connected between a current terminal of a reference current and a ground, and connected to each other in series, and a second transistor in a second current path connected between the current terminal and the ground, and having a base connected to a collector of the first transistor. The temperature compensation circuit includes a second resistor in the second current path, and connected between an emitter of the second transistor and a base of the first transistor and having a first thermal coefficient, and a third resistor included in the second current path, and connected between the base of the first transistor and the ground and having a second thermal coefficient, different from the first thermal coefficient.

Abstract: An operation method of a first communication node for transmitting a message in a vehicle-to-everything (V2X) communication network is provided. The method includes receiving information regarding a time period including a plurality of transmission slots from a second communication node and selecting one transmission slot included in the time period based on a first index configured based on the information regarding the time period. A message is transmitted through the one transmission slot and the information regarding the time period includes information regarding a number of the plurality of transmission slots included in the time period.

Abstract: A power amplifier includes an amplifying circuit configured to amplify an input signal and comprising transistors, which may be disposed in parallel with one another and divided into a first group of transistors and a second group of transistors. The power amplifier also includes a bias circuit configured to supply bias power to one of the transistors of the first group and the transistors of the second group.

Abstract: A power amplifier includes an amplifying circuit configured to amplify an input signal and comprising transistors, which may be disposed in parallel with one another and divided into a first group of transistors and a second group of transistors. The power amplifier also includes a bias circuit configured to supply bias power to one of the transistors of the first group and the transistors of the second group.

Abstract: Disclosed herein is an apparatus for driving a gyro sensor including a driving displacement signal processing unit, a sensing signal processing unit and an automatic quadrature signal controller configured to control the variable resistor through digital correction when a quadrature signal exists, and minimize an amplitude of the quadrature signal.

Abstract: Disclosed herein are an apparatus and a method for detecting a gyro sensor signal. The apparatus includes: a preamplifier unit outputting sensing voltage and inverse phase sensing voltage; a sample and hold unit holding the sensing voltage and the inverse phase sensing voltage for a predetermined period at a predetermined point in time; an averaging unit removing offset; a current passing unit providing a current path of output voltage of the averaging unit; a comparing unit comparing a signal output from the averaging unit and reference voltage with each other to output a comparison signal; and a pulse counter unit generating and outputting a count signal that is in proportion to a width of the comparison signal.

Abstract: An apparatus for driving a gyro sensor includes a gyro sensor, an analog circuit, a signal converter, and a digital automatic gain controller. The gyro sensor includes at least one driving mass. The analog circuit detects an amplitude value or a phase value of resonance of the driving mass from first and second driving displacement signals output from the gyro sensor. The signal converter converts the amplitude value or the phase value into a digital value. The digital automatic gain controller outputs a control gain for controlling a signal driving resonance of the driving mass based on a selected one of a phase or amplitude of resonance of the driving mass, so that a selected one of the amplitude value and the phase value input from the signal converter is converged to a preset targeted value.

Abstract: Laser crystallization equipment includes a laser generator generating a laser beam, the laser beam being directed toward a processing target substrate, and a blade member over the processing target substrate, the blade member being configured to chop the laser beam with a predetermined width in two directions, wherein two ends of the laser beam chopped by the blade member are irradiated to the processing target substrate as diffraction light.

Abstract: Disclosed herein is a resistive type accelerator sensor, including: a sensor unit; and a continuous time sigma-delta ADC including an input unit which receives an analog input signal transferred from the sensor unit, an addition circuit which is coupled with the input unit to receive the analog input signal and an analog feedback signal transferred from DAC to provide a summed signal, an integrator which integrates the summed signal transferred from the addition circuit, a comparator which converts an integrated signal transferred from the integrator into a digital signal, and an output unit which transfers the digital output signal.

Abstract: Disclosed herein is an apparatus for driving a gym sensor including a driving displacement signal processing unit, a sensing signal processing unit and an automatic quadrature signal controller configured to control the variable resistor through digital correction when a quadrature signal exists, and minimize an amplitude of the quadrature signal.

Abstract: Disclosed herein are a continuous-time sigma-delta modulator and a continuous-time sigma-delta modulating method. According to an exemplary embodiment of the present invention, the continuous-time sigma-delta modulator includes: an integrator receiving and integrating a signal; a quantizer quantizing an output of the integrator to be digitally output; a timer receiving the digital output of the quantizer to charge and discharge a charging and discharging capacitor according a predetermined timing so as to generate a trapezoidal waveform; and a digital-to-analog converter (DAC) outputting a digital-to-analog converted trapezoidal waveform depending on the digital output of the quantizer by using the timer to feedback the digital-to-analog converted trapezoidal waveform to be summed with a signal input to the integrator Further, the continuous-time sigma-delta modulating method is proposed.

Abstract: Disclosed herein is an apparatus for driving a gyroscope sensor, including: multi-axis sensing means; detecting circuit means; switching means that is disposed between the axes of the multi-axis sensing means and the detecting circuit means so as to connect or disconnect between the axes of the multi-axis sensing means and the detecting circuit means according to a switching control signal; and control means that controls the switching means such that the axes of the multi-axis sensing means and the detecting circuit means are sequentially connected or disconnected. By providing Integrated detecting circuit means to detect gyro signals on axes from a gyroscope sensor, size can be reduced and power consumption (current) and cost can be saved.

Abstract: Disclosed herein are a gyro sensor driver and a pulse translation device used thereof. The gyro sensor driver, includes: a phase shifter that delays a signal output from an output terminal of a vibrating sensor to output a phase-shifted signal; a comparator that inverts a signal output from the phase shifter to output a clock signal; a reference voltage generator that generates and outputs reference voltage; and a pulse translator that receives the reference voltage output from the reference voltage generator and the clock signal output from the comparator to generate and output a signal of a predetermined pulse, thereby generating a desired driving signal with low current.

Abstract: Disclosed herein is a gain control device of a gyro sensor driving signal, including: a gyro sensor generating a gyro signal; a driving signal supply unit applying a driving signal to the gyro sensor; and a gain control unit detecting positive and negative driving signals of the gyro sensor so as to be output as a pulse waveform and changing the pulse waveform to a resistance value corresponding to the pulse waveform to compensate for a gain of the driving signal, whereby it is possible to simply implement the circuit and reduce costs, by controlling the gain of the gyro sensor

Abstract: There are provided an electronic pen data input system and an electronic pen data input method using the same. The electronic pen data input system includes: an electronic pen including an accelerometer sensor to provide acceleration information corresponding to movement thereof; and a portable communications terminal calculating movement information of the electronic pen using the acceleration information of the electronic pen and compensating for a noise input in the movement information to determine a handwriting data input.

Abstract: Disclosed herein is a peak detector including: a operation time point providing unit outputting a certain time point before the maximum value in an interval in which a driving displacement increases as an operation time point, when a raising edge of an operation interval signal is detected; and a holding circuit unit, when a reset signal is input, starting an operation at the operation time point provided from the operation time point providing unit after an operation standby state and sensing and outputting a driving displacement of a driving mass.

Abstract: Disclosed herein are a hybrid analog to digital converter and a sensing apparatus using the same. The hybrid analog to digital converter includes: a continuous time modulator amplifying and outputting an analog differential signal; a discrete time modulator amplifying and outputting again the analog differential signal that is amplified and output by the continuous time modulator; and a comparator performing 1 bit ADC function of representing an analog signal output by the discrete time modulator to be High or Low.

Abstract: Disclosed herein are an apparatus and a method for detecting a gyro sensor signal. The apparatus includes: a preamplifier unit outputting sensing voltage and inverse phase sensing voltage; a sample and hold unit holding the sensing voltage and the inverse phase sensing voltage for a predetermined period at a predetermined point in time; an averaging unit removing offset; a current passing unit providing a current path of output voltage of the averaging unit; a comparing unit comparing a signal output from the averaging unit and reference voltage with each other to output a comparison signal; and a pulse counter unit generating and outputting a count signal that is in proportion to a width of the comparison signal.