Electronics and Telecommunications Research Institute

Sung Weon Kang

Tae Wook Kang

In Gi Lim

Sung Eun Kim

Jung Bum Kim

Jung Hwan Hwang

Chang Hee Hyoung

Kyung Soo Kim

Kyung Hwan Park

Hyung Il Park

Tae Young Kang

Byoung Gun Choi

Jin Kyung Kim

Seok Bong Hyun

Hyung-Il Park

Ki Hyuk Park

Jae Hoon Shim

Duck Gun Park

Jae Woo Lee

Yun Tae Kim

Kwang Il Oh

Youn Tae Kim

Woo Seok Yang

Sung Hae Jung

Byounggun Choi

Hey Jin Myoung

Seong Mo Park

Chang Han Je

Jin Bong Sung

Hyun Kyu Yu

Jae-Jin Lee

Young-Su Kwon

Chang Auck Choi

Joo Hyun Lee

Mi Jeong Park

Woojoo Lee

Hyung Ii Park

Jin Ho Lee

Hyuk Joo Kim

Kyung-Soo Kim

Kyoung Ik Cho

Jae Jin Lee

Bon Tae Koo

Sung Won Sohn

Myung Lae Lee

Kyung Jin Byun

Gunn Hwang

Sung-Eun Kim

Jin-Kyung Kim

Sukho Lee

Kyuseung Han

Jeongmin Yang

Min Gun Kim

Myung Ae Chung

Hyung Joun Yoo

Seok Hwan Moon

Kyungsoo Kim

Eung Gie Oh

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

Provided is an image sensor. The image sensor includes a pixel array including pixels arranged along a first direction and a second direction, and partitioned into blocks, a converter configured to convert image signals outputted from the pixels into digital signals based on an image, and an image signal processor configured to add amplitudes of the digital signals belonging to each of the blocks to determine edge blocks among the blocks, compare the amplitudes of the digital signals to determine directions in which direction lines of the edge blocks are directed, and connect the direction lines to extract an edge of the image.

Image sensor and method for extracting edge of image based on amplitudes of signals output from pixels

Provided is an image processing device. The device includes an active pixel sensor array including a plurality of pixels configured to generate a plurality of signals corresponding to a target, and an image processor configured to generate a depth map about the target based on an intensity difference of two signals among the plurality of signals.

Image processing device configured to generate depth map and method of operating the same

Provided is an operating method of a wearable device, the method including setting a threshold voltage when there is not a physical contact of an outsider, measuring an envelope voltage while performing a data communication, determining whether to be the physical contact with the outsider by comparing the threshold voltage with the envelope voltage, and stopping the data communication, when there is the physical contact with the outsider.

Wearable device and data security method thereof

The present disclosure relates to a capsule endoscope transmitter configured to transmit frames including control frames and data frames to a capsule endoscope receiver. The capsule endoscope transmitter includes a preamble generator configured to generate preambles for synchronizing and identifying the control frames used to select a reception electrode pair that receives the frames, and a line sync generator configured to generate a line sync for synchronizing the data frames and identifying a code value of each of the data frames.

Capsule endoscope transmitter and capsule endoscope receiver configured to perform human body communication and human body communication method using the same

Provided are Controller Area Network (CAN) controller and a data transmission method using the same. The CAN controller includes a receiver, a reception First in First out (FIFO) memory, a transmission FIFO memory, and a transmitter. The receiver is configured to analyze reception information received from a CAN bus according to a set protocol. The reception FIFO memory is configured to store the reception information to be overwritten on previously stored reception information based on identification data of the reception information and a bus load. The transmission FIFO memory is configured to store the transmission information to be overwritten on previously stored transmission information based on identification data of the transmission information and a processor load of the processor. The transmitter is configured to set the protocol and transmit the transmission information stored in the transmission FIFO memory to the CAN bus.

Can controller and data transmission method using the same

Provided is a network-on-chip (NoC). The NoC includes a plurality of routers configured to receive power through each corresponding power gating switch, and a controller configured to control a power gating switch of each of the plurality of routers based on temperature information provided from each of the plurality of routers and control a driving clock of the plurality of routers. The controller controls the power gating switch to turn off at least one first router by referring to the temperature information and over-scale a clock frequency of at least one turned-on second router.

Network-on-chip using temperature-effect-inversion and operation method thereof

Provided is a video providing system. The video providing system includes a memory configured to store device information of a display device, an analyzer configured to receive an original video from the outside and analyze images in the original video, and a processor configured to generate, from the original video, video streams according to a streaming mode and control signals of the display device respectively corresponding to the video streams, based on device information of a display device and analysis information from the analyzer, and provide the video streams and the control signals to the display device.

Method and system for providing video

The reception device includes a base member, a first electrode, a second electrode, a differential amplifier, and a circuit board. The base member includes a first surface and a second surface. The first electrode is provided on the first surface and configured to receive a reception signal. The second electrode is provided on the second surface and configured to receive a reference voltage. The differential amplifier is configured to amplify a potential difference between the reception signal and the reference voltage. The circuit board is configured to provide a power voltage and a reference ground to the differential amplifier. A distance between the circuit board and the first electrode is smaller than a distance between the circuit board and the second electrode. According to an embodiment of the inventive concept, the amplification performance of the reception device using a human body as a medium is improved.

Reception device and transmission/reception system including the same

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 is a receiver for human body communication, the receiver including a comparator, a clock and data recovery circuit, and resistors or passive elements having a resistance property in power supply and ground connection units of other digital operation components and a power supply and ground connection unit of a printed circuit board (PCB) to remove or suppress a digital noise reflowed into a human body in the receiver and to raise reception performance by amplifying, with a high gain, a very small transmission signal transmitted through the human body causing a very high loss.

Receiver for human body communication and method for removing noise 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 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

Disclosed are an apparatus and a method for transmitting human sound that cancel an interference signal generated by a non-linear property of a human body around an ear by synthesizing and transmitting a sound signal modulated by a single side band (SSB) transmission method and a carrier to one output unit and by synthesizing and transmitting the sound signal modulated by the single side band (SSB) transmission method and a carrier in which a phase of a signal is transited to the other output unit, by using two signal output units in a sound transmitting apparatus.

Apparatus and method for transmitting human sound for removing interference signal

Growing community of inventors

Daejeon, South Korea

Sung Weon Kang