Lg Electronics Inc.

Korea Electronics Technology Institute

Soongsil University

Samsung Electronics Co., Ltd.

Snu Rdb Foundation

Younghan Kim

Jaehwan Park

Hyunseuk Ahn

Sookyoung Kim

Yun Won Chung

Seungok Lim

Byoungyong Hong

Min Wook Kang

Sanghyun Jung

Sangwoo Ha

Changseok Yun

Jaeho Kwak

Gukchan Lim

Mihyun Park

Seonghyok Kim

Hyun-Chul Yoon

SaeWoong Bahk

Jahee Hur

Yonghahk Park

Hyunju Oh

Yongju Park

Yongseok Lim

Seokhyun Lim

Jin Il Oh

Soonwon Hwang

Sungguk Yoon

An energy harvesting system includes a plurality of energy converters connected to multiple ambient energy sources, respectively, receiving energy from the multiple ambient energy sources, and converting the received energy into electrical energy. The system also includes an electrical energy buffer receiving and collecting electrical energy from the energy converters, and combining the collected electrical energy to have a predetermined power level and a constant voltage converter receiving the combined electrical energy from the electrical energy buffer, and converting the received electrical energy into driving power of a power level usable by a load. The system further includes an electrical energy storage receiving the driving power from the constant voltage converter, storing the received driving power, and providing the stored driving power to the load. When internal power is generated in a specific energy converter, the generated internal power is selectively used as external power for another energy converter.

Energy harvesting system using multiple ambient energy sources

An energy harvesting apparatus, system, and method are provided to perform energy harvesting and estimation of ambient energy intensity. The energy harvesting apparatus includes an energy converter, an energy storage, an output voltage/current detector, and a switch. The energy converter receives ambient energy, converts the ambient energy into DC power having a DC voltage and a DC current, and outputs the DC power. The energy storage receives and stores the DC power. The output voltage/current detector has a constant load value and detects at least one of the DC voltage and the DC current, outputted from the energy converter, to be used for estimating intensity of the ambient energy. The switch selectively connects the energy converter to the energy storage or the output voltage/current detector.

Energy harvesting apparatus, system, and method for estimating ambient energy intensity

The present disclosure provides communications apparatus and method using an On-off keying (OOK) modulation based low power wake-up protocol suitable for use in IoT devices. The communication method according to an exemplary embodiment includes: transmitting, by a main radio module of a master device, an OOK modulated wake-up radio signal by using a narrow frequency band between an ISM band and a guard band in the ISM band; receiving, by a low power wake-up radio module of a slave device, the wake-up radio signal and to demodulate according to an OOK modulation scheme and awaken a controller of the slave device in a sleep mode; and after the controller wakes up from the sleep mode, transmitting data to be transmitted to the master device, by the controller of the slave device, through the main radio module.

Communications apparatus and method using OOK modulation based low power wake-up protocol

A portable electronic device according to the present disclosure may include a memory configured to store video data, a touch screen configured to receive a touch input related to a summary of the video data, and a controller configured to generate the summary of the video data in response to the touch input, wherein the controller extracts objects included in the video data, and detects a section in which at least one of the extracted objects appears and then disappears, and edits the video data based on the detected section to generate a summary of the video data.

Portable electronic device and method for generating a summary of video data

A mobile terminal and a method for controlling the mobile terminal are disclosed. A mobile terminal according to the present invention comprises a camera, a touch screen, and a controller configured to enter Always on Camera mode in which the camera is operated while the touch screen is inactive, take a picture at predetermined photographing intervals, and take more pictures each time the number of recognized subjects is changed within one photographing period. According to the present invention, a mobile terminal may take an image reflecting a change of a subject in Always on Camera mode in an efficient manner.

Mobile terminal and method for controlling the same and operating in an always on camera mode

A mobile terminal including a terminal body comprising a battery; an adaptor connector formed at one side surface of the terminal body and to which a power supply adaptor is connected; a plurality of charging units configured to charge the battery between the adaptor connector and the battery; and a controller configured to generate a control signal for controlling each of the plurality of charging units. Further, any one of the plurality of charging units is configured to detect a level of a voltage of the battery, compare the voltage of the battery with first to third threshold voltages, and output first battery voltage data to the controller when the voltage of the battery is lower than the first threshold voltage, output second battery voltage data to the controller when the voltage of the battery is equal to or larger than the first threshold voltage and is lower than the second threshold voltage, and output third battery voltage data to the controller when the voltage of the battery is equal to or larger than the second threshold voltage and is lower than the third threshold voltage.

Mobile terminal and battery charging method therefor

Provided is an opportunistic forwarding method and apparatus for a content-based information centric network in a delay tolerant network environment. The opportunistic forwarding method for a content-based information centric network in a delay tolerant network environment having a processor and a memory includes when a first node contacts a second node, updating a first delivery predictability and a second delivery predictability of the first node based on contact record information between the first node and the second node and data that the second node has, updating a first message of the first node by comparing the first message including first interest information and first data that the first node has with a second message including second interest information and second data that the second node has, and delivering the first message of the first node to the second node based on the first and second delivery predictabilities of the first node.

Opportunistic forwarding method of using delay tolerant network for content-based information centric network and apparatus for performing the method

A mobile terminal and a battery charging method therefor are provided. The mobile terminal includes: a terminal body including a battery; an adaptor connecter formed at one side surface of the terminal body and to which a power supply adaptor is connected; a plurality of charging units configured to charge the battery between the adaptor connecter and the battery; and a controller configured to generate a control signal for controlling each of the plurality of charging units.

A mobile terminal is provided a mobile terminal and a control method thereof according to exemplary embodiments. The mobile terminal includes a main body that is configured to be wearable on a specific portion of a user's body, a sensing unit that is configured to sense whether or not the main body has been worn, and also sense a user gesture for deciding the worn position of the main body, and a controller that is configured to decide the worn position of the main body according to the sensed user gesture, and setting a user input for generating a first control command in a different manner based on the decided worn position. With the configuration, the main body may sense the worn position by itself so as to provide a user interface, which is more intuitive and convenient for the user, according to the sensed worn position.

Mobile terminal and control method thereof

A method of fabricating a semiconductor device with conductive patterns comprises sequentially forming an etch-target layer and a middle mold layer on a substrate, forming a first upper mold pattern and a second upper mold pattern on the middle mold layer to have top surfaces at different levels, etching the middle mold layer using the first and second upper mold patterns as an etch mask to form first and second middle mold patterns, respectively, forming a third middle mold pattern between the first and second middle mold patterns, and etching the etch-target layer using the first to third middle mold patterns as an etch mask to form conductive patterns.

Methods of fabricating semiconductor devices

A scheduling method for a wireless communication system is disclosed. The method includes (a) selecting n(&#x3c;N) terminals among the N terminals included in the wireless communication system; (b) receiving channel state information from the selected terminals and allocating wireless resources to at least one terminal among the selected terminals; (c) performing transmission or reception via the allocated wireless resource at the at least one terminal; and (d) newly selecting n terminals and returning to the (b) step, wherein the remaining terminals except for the selected terminals inactivate the transmitting and receiving function at the steps of (b) and (c). Therefore, a wireless cellular network adapted to improve the energy efficiency in fairness is provided.

Growing community of inventors

Seoul, South Korea

Younghan Kim