Electronics and Telecommunications Research Institute

Changwon National University Industry Academy Cooperation Corps

Kyung Hwan Park

Tae Wook Kang

In Gi Lim

Sung Eun Kim

Sung Weon Kang

Tae Young Kang

Jung Bum Kim

Byoung Gun Choi

Jung Hwan Hwang

Seok Bong Hyun

Chang Hee Hyoung

Kyung Soo Kim

Hyung Il Park

Hyung-Il Park

Jin Kyung Kim

Jae-Jin Lee

Kwang Il Oh

Bon Tae Koo

Seong Su Park

Byounggun Choi

Hyuk Joo Kim

Seong Mo Park

Kyung Jin Byun

Min Sang Park

Jang Hong Choi

Hey Jin Myoung

Min Woo Park

Mi Jeong Park

Pil Jae Park

Hyun Kyu Yu

Kyung-Soo Kim

Sang Kyun Lee

Youn Tae Kim

Cheon Soo Kim

Jae Hoon Shim

Sung-Eun Kim

Seon-Ho Han

Byung Jo Kim

Jin-Kyung Kim

Sun Hee Kim

Ki Hyuk Park

Dong-Young Kim

Seong-Su Park

Sukho Lee

Kyuseung Han

Young Hwan Bae

Seok-bong Hyun

Jeen Hur

Young Hee Kim

Yun Ho Choi

Myung Ae Chung

Kyungsoo Kim

Sang Pil Kim

Jeong-Geun Kim

Geum-Young Tak

Kisu Kim

Hyung Ii Park

Hong Zhou Jin

Disclosed is a network-on-chip including a first data converter that receives first image data and second image data from at least one image sensor and encodes one image data among the first image data and the second image data, into first data, based on whether the first image data is identical to the second image data and a second data converter that receives non-image data from at least one non-image sensor and encodes the received non-image data into second data. The network-on-chip outputs the first data and the second data to transmit the first data and the second data to an external server at a burst length.

Network-on-chip for processing data, sensor device including processor based on network-on-chip and data processing method of sensor device

Disclosed is a radar device capable of operating in a dual mode, which includes a transmitter that includes a first signal generator that generates a Doppler radar signal and a second signal generator that generates a Frequency Modulated Continuous Wave (FMCW) radar signal, a receiver that receives a reflected signal reflected from a target and converts the reflected signal to a digital signal, a signal processing circuit that processes the digital signal differently depending on the dual mode to output an output signal, a signal analysis circuit that analyzes the output signal, and a controller that controls operations of the transmitter, the receiver, the signal processing circuit, and the signal analysis circuit, and the dual mode includes a first mode in which the first signal generator is activated and a second mode in which the second signal generator is activated.

Radar device operating in dual mode and operation method thereof

Provided is a drive amplifier. A drive amplifier may include: a main circuit configured to receive an RF input signal and output a first RF output signal; and a selective bias adjustment circuit comprising a first common gate transistor to which a first common gate bias voltage is applied and a second common gate transistor to which a second common gate bias voltage is applied, and configured to output a second RF output signal using the first common gate transistor and the second common gate transistor.

Drive amplifier

Disclosed are a charge sensitive amplifier capable of minimizing a variation in a signal voltage of an output signal by applying a bias direct current to a gate of a feedback transistor, and a radiation sensor including the same. According to the charge sensitive amplifier and the radiation sensor including the same, it is possible to minimize a variation in a signal voltage of a charge sensitive amplifier output signal by applying a current, which is formed by mirroring a current bias circuit designed to be insensitive to PVT variations, to a gate of a feedback transistor. Furthermore, it is possible to reduce a variation in charging time and enable high-speed sensing by charging the signal voltage to the level of a common voltage VCOM by using a constant current supplied through a bandgap reference (BGR) circuit.

Charge sensitive amplifier and radiation sensor including the same

A hybrid communication device, an operation method thereof, and a communication system including the same are provided. The hybrid communication device includes a contact unit that includes an antenna for receiving a first communication signal and an electrode for receiving a second signal, a switch controller that includes a first switch and a second switch and controls the first switch and the second switch based on a change in capacitance of the electrode, and a signal processing unit that receives at least one of the first communication signal and the second communication signal from the contact unit via the first switch and processes the received signal. The first switch is connected to the contact unit, and the signal processing unit is connected to the first switch.

Communication device, operation method thereof, and communication system including the same

Disclosed is a phase demodulator, which includes a transmitter that outputs a reference signal to a target, a receiver that receives a target signal generated in response to the reference signal from the target, and a demodulation processor that demodulates the target signal, and the demodulation processor includes a phase controller that outputs a first phase signal based on the reference signal, a phase shifter that delays a phase of the first phase signal to output a first delayed signal, a mixer that outputs a first mixing signal based on the target signal and the first delay signal, and an amplifier that outputs a first feedback signal generated by amplifying the first mixing signal to the phase controller.

Phase demodulator with negative feedback loop

Provided is a radioisotope battery. A radioisotope battery according to exemplary embodiments may include: a substrate; a shield layer disposed on the substrate and including a first material; a source layer embedded in the shield layer and including a second material which is a radioisotope of the first material; a PN junction layer on the shield layer and the source layer; and a window layer between the PN junction layer and the source layer.

Radioisotope battery

A random number generating device includes a particle detector, a pulse generator, a clock counter, and a random number converter. The particle detector detects particles emitted from a radioactive isotope. The pulse generator generates pulses corresponding to the particles. The clock counter counts the number of clock cycles during time intervals between the pulses and generates a plurality of count values. The random number converter adjusts a clock frequency, based on a minimum value and a maximum value of the plurality of count values and converts a target count value generated depending on the adjusted clock frequency into a random number.

Random number generating device and operating method of the same

A human body communication device includes an electrode, a matching circuit, a switch providing a first path electrically connected to the matching circuit and a second path electrically connected to the matching circuit, a sensor, in a first state, connected to the matching circuit through the switch, outputting a first sensing signal to the matching circuit, and outputting a second sensing signal when a difference between a signal generated from the matching circuit in response to the first sensing signal and the first sensing signal is greater than or equal to a threshold, a transmitter, in a second state, connected to the matching circuit through the switch, and outputting a data signal to the matching circuit, and a controller controlling the switch from the first state to the second state in response to receiving the second sensing signal from the sensor, in the first state.

Human body communication device having single electrode

Provided are a random number generating device and a method of operating the same. The random number generating device includes a source detector, a pulse generator, a counter, and a verification circuit. The source detector detects particles emitted from a source to generate a detection signal. The pulse generator generates pulses corresponding to the detected particles, based on the detection signal. The counter measures time intervals among the pulses and generates binary count values respectively corresponding to the time intervals. The verification circuit determines an output of the binary count values, based on the number of 0 values and the number of 1 values included in the binary count values.

Provided is a method for generating a preamble of a transmission signal for human body communication, the method including using a frequency shift code (FSC) of which a length is adjusted according to an operating clock frequency or a transmission rate and a first pseudo random binary sequence (PRBS) code of p chips where p is a natural number to generate a first preamble unit block of n chips where n is a natural number, using the FSC and a second PRBS code of p' chips to generate a second preamble unit block of n&#x2032; chips, and arraying the first preamble unit block consecutively and repeatedly and disposing the second preamble unit block at a next stage to form the preamble of the transmission signal.

Data transmission device for human body communication, preamble generation method thereof, and frame synchronization method thereof

Provided are an energy harvesting device capable of generating electric energy by effectively obtaining an electromagnetic wave emitted from an indoor lighting device and a power control system of a lighting device capable of performing self-power generation by using the energy harvesting device as a power source. The energy harvesting device using an electromagnetic wave according to an exemplary embodiment of the present disclosure includes: an interface unit made of a conductive material and configured to capture a conductive interference signal transferred through a conductive member of a lighting device; and a rectifier circuit unit configured to rectify the captured conductive interference signal to convert the rectified conductive interference signal to direct current power.

Energy harvesting device using electromagnetic interference signal and sensor system including the same

Disclosed is an energy conversion apparatus. An energy conversion apparatus may comprise a control part controlling a length of a first time duration in which input current is inputted and accumulated, a length of a second time duration in which the accumulated current is provided to a load, and a length of a third time duration in which inverse current flows; and a DC-to-DC converter including an inductor, a output capacitor, and at least one switching element, wherein the input current is accumulated during the first time duration by switching the at least one switching element according to a control of the control part so as to perform input impedance matching, and the DC-to-DC convert provides a current corresponding to a difference between the accumulated current provided during the second time duration and the inverse current flowing from the output capacitor during the third time duration to the load.

Energy conversion apparatus

Disclosed is a radar apparatus supporting short range and long range radar operations, wherein a plurality of short range transmitting chirp signals and a plurality of long range transmitting chirp signals are generated by a predetermined modulation scheme and is transmitted to an object through at least one transmitting array antenna and signals reflected from the object is received through at least one receiving array antenna, and the plurality of long range transmitting chirp signals have transmission power larger than that for the plurality of short range transmitting chirp signals.

Radar apparatus supporting short and long range radar operation

Disclosed are a method and an apparatus for amplitude modulation of a spread signal that can increase a data transmission rate and frequency use efficiency by loading information on the amplitude of the spread signal used in digital communications. A method for amplitude modulation of a spread signal according to an exemplary embodiment of the present disclosure includes: receiving a first data signal; generating a spread signal by applying a spreading code to the first data signal; receiving a second data signal; and outputting the spread signal at an amplitude corresponding to a value of the second data signal.

Method and apparatus for amplitude modulation of spread signal

Growing community of inventors

Daejeon, South Korea

Kyung Hwan Park