Electronics and Telecommunications Research Institute

Lg Chem, Ltd

Lg Display Co., Ltd.

Jung Bum Kim

Sung Weon Kang

In Gi Lim

Tae Wook Kang

Sung Eun 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

Ki Hyuk Park

Jae Hoon Shim

Hyung-Il Park

Duck Gun Park

Hyeon Sik Choi

Hey Jin Myoung

Dong Hoon Lee

Yeon Keun Lee

Kwang Il Oh

Minsoo Kang

Dae Woong Lee

Kong Kyeom Kim

Min Choon Park

Jae Soon Bae

Byounggun Choi

Seong Mo Park

Ji Hee Kim

Mi Jeong Park

Jung Doo Kim

Yong Sik Ahn

Kyoung Sik Moon

Seong Soo Jang

Hyung Ii Park

Jae Seung Lee

Hyuk Joo Kim

Moon Soo Park

Kyung-Soo Kim

Dae Hee Lee

Youn Tae Kim

In Ho Hwang

Sung-Eun Kim

Jung Hyoung Lee

Mun Kyu Joo

Ik Soo Eo

Yun Hye Hahm

Jin-Kyung Kim

Min Jeong Lee

Young Chul Lee

In San Jeon

Kyungsoo Kim

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 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

The present invention provides an organic light emitting device including: a substrate; and two or more stacked light emitting elements, which comprise a first electrode, at least one intermediate electrode, a second electrode, and an organic material layer disposed between the electrodes, the stacked organic light emitting elements including a first group of electrodes electrically connected to each other such that among the electrodes, at least two electrodes, which are not adjacent to each other, become a common electric potential, and a second group of electrodes which include one electrode among electrodes which are not electrically connected to the first group of electrodes, or at least two electrodes which are not electrically connected to the first group of electrodes and are electrically connected to each other so as to be a common electric potential without being adjacent to each other, in which the stacked organic light emitting elements are disposed at an interval apart from each other on the substrate and driven by an alternating current power source such that a form, in which a first group of electrodes of one stacked organic light emitting element among the stacked organic light emitting elements are directly connected to a second group of electrodes of another stacked organic light element, is continuously repeated.

Organic light-emitting device

The present invention relates to a substrate for an organic electrode device, a manufacturing method thereof, and an organic electronic device. An exemplary substrate of the invention, if an organic light emitting element is formed on an upper part of the substrate, can obtain luminance with high emission and uniformity by efficiently controlling the surface resistance of an electrode even when the device is configured into larger sizes.

Substrate for organic electronic device

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

The present application relates to an organic light emitting device (OLED) and lighting devices. The exemplary OLED according to the present application, for example, may minimize evanescent coupling caused by surface plasmons, and the like, and may have excellent emission efficiency.

Organic light emitting device

Provided are a conductive film and a method of manufacturing the same. The conductive film includes a substrate, a first conductive layer formed on the substrate, and a patterned second conductive layer formed on the first conductive layer. Here, oxide layers are formed on top and side surfaces of the second conductive layer. The conductive film may prevent defects of the conductive layer caused by rapid oxidation or damage to the substrate, and increase emission uniformity.

Conductive film having oxide layer and method of manufacturing the same

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

A receiver in a human communication system includes: receiving electrodes including a transmission frame including control frames and data frames; first and second switches connected with the receiving electrodes; a switching control unit controlling a switching of the first and second switches to selectively connect the receiving electrodes with the first and second switches in response to each control frame according to a predetermined rule every time each of the control frames is input; a signal processing unit performing signal processing on the transmission frame output from the first and second switches; a preamble detection unit detecting the first preamble from each of the control frames included in the signal-processed transmission frame to generate preamble correlation values for the first preamble; and a correlation value processing unit controlling the switching control unit to select pairs of final receiving electrodes among the receiving electrodes based on the preamble correlation values.

Transmitter, receiver and method thereof in human body communication system

Provided are a frequency modulation/demodulation apparatus using a frequency selective baseband and a transmitting/receiving apparatus using the same. In a frequency selective baseband transmission technique or an FS-CDMA technique, a transmission rate is controlled according to communication channel environment, spread code groups are repeatedly selected in a receiving side so as to obtain a frequency diversity gain. Accordingly, it is possible to reduce interference between users. In addition, even in a case where strong interference induced from electronic exists, it is possible to implement low-power, stable human-body communication and to ensure a communication quality.

Frequency modulating apparatus and transmitting apparatus including the same, and frequency demodulating apparatus and receiving apparatus including the same

Disclosed are a telematics system using human body communication, a portable device having a telematics function using human body communication, and a method for providing a telematics service using human body communication. The telematics system using human body communication includes: a vehicle receiving an authentication key from at least one portable device through human body communication using a human body as a medium, and controlling the opening and closing of a door of the vehicle based on whether or not the received authentication key is valid; and a first portable device transmitting a first authentication key through a user's body in contact with the vehicle.

Telematics system using human body communication, portable device having telematics function using human body communication, and method for providing telematics service using human body communication

Growing community of inventors

Daejeon, South Korea

Jung Bum Kim