Samsung Electronics Co., Ltd.

Hewlett-packard Development Company, L.p.

Seoul National University

Yonsei University

Agency for Defense Development

Sejong University

Taekyoung Kwon

Eunah Kim

Jeong Hyun Yi

Tae Jin Park

Sung-Ju Lee

Dookyoon Han

Youngbin Im

Taejoong Chung

Jicheol Lee

Puneet Sharma

Yonghyun Kim

Ji-Cheol Lee

Han-Na Lim

Jeongkeun Lee

Hyungho Lee

Jung Hee Cheon

Jung Gun Lee

Hanna Lim

Hyung-Ho Lee

Sangho Park

Yonggwon Lee

Mun-Kyu Lee

Minhyeok Kang

Min Gi Cho

Gi Su Yeo

Woomin Lee

Mirim Ahn

Juyoub Kim

Yihyeong Kim

Sarang Na

Do Hyeon An

Sungjoon Choi

Myeongcheol Kwak

Taeheon Park

The present embodiments provide a method and an apparatus for detecting an error of a kernel memory in real time, wherein the method and the apparatus select only an object process in real time without a source code and check a memory error of an operating system kernel only for the object process, thereby minimizing an impact on kernel performance.

Method for detecting error of operating system kernel memory in real time

An electronic apparatus is provided. The electronic apparatus includes an acceleration sensor, a gyro sensor, a geomagnetic sensor, and a processor configured to compare geomagnetic data of the geomagnetic sensor and gyro data of the gyro sensor and correct the gyro data, determine a first value based on a principal component analysis (PCA) of acceleration data of the acceleration sensor, and determine a second value based on a PCA of the gyro data, and estimate a moving direction of the electronic apparatus based on the first value and the second value.

Electronic apparatus of estimation of movement direction and method thereof

A technique for providing a video streaming service is provided. A method of a mobile device for providing a video streaming service includes sending periodically location and moving path information of the mobile device to a first server, receiving bitrate information per location predicted according to a moving path of the mobile device, from the first server, determining a bitrate for a current location of the mobile device based on the predicated bitrate information per location of the mobile device, and requesting a second server to send video segments based on the bitrate.

Method for providing video streaming service and mobile device for same

The present invention relates to a receiver information hiding method of hiding receiver information of a message in a system including a transmitting terminal broadcasting the message and a multitude of receiving terminals receiving the message, and the method includes selecting by the transmitting terminal at least one receiving terminal that has to process the message from the plurality of terminals, transforming by the transmitting terminal address information regarding the selected at least one receiving terminal, generating by the transmitting terminal the message using the transformed address information and broadcasting the generated message, and determining by each of the plurality of receiving terminals whether or not the corresponding receiving terminal is included in the selected at least one receiving terminal using specific address information corresponding to each of the plurality of receiving terminals and the transformed address information, in response to the reception of the message, and selectively processing or ignoring the message according to the determination result.

Method for hiding receiver's address for link layer in group communication

An embodiment provides a method for supporting video transmission and reception in a bitrate selection server of a mobile communication system. The method includes receiving a metadata request of a video from a terminal. The method also includes transmitting the received metadata request to a media server based on the request; receiving a metadata response from the media server. The method also includes storing the received video metadata and transmitting the received video metadata to the terminal. The method also includes requesting subscriber information of the terminal to a Policy and Changing Rules Function (PCRF) and receiving the subscriber information. The method also includes receiving a video segment request of the video from the terminal. The method also includes determining a bitrate of the video based on at least one of the video metadata and the subscriber information.

Method and apparatus for assigning video bitrate in mobile communication system

A security channel interface providing device is provided. The device includes a sensor unit that comprises at least two sensors configured to sense a motion of a user, and a control unit that determines whether or not at least two sensing values sensed by the sensors satisfy a security channel interface activation condition, and activates or inactivates a security channel interface according to a result of the determination. When the security channel interface is activated, the control unit provides a security channel to the user.

Device and method for providing security channel interface

A mobile privacy protection system using a proxy, a proxy device, and a mobile privacy protection method are provided. The mobile privacy protection system includes: an electronic tag to store predetermined tag information; a proxy device to adjust a privacy level of the electronic tag; and a home server to create new tag information in response to a request from the proxy device wherein the new tag information is used to adjust the privacy level.

Mobile privacy protection system using proxy, proxy device and mobile privacy protection method

Channel assignment for access points (APs) in a wireless network includes determining a bottleneck client in an interference relationship, and determining a channel assignment for the APs that maximizes a normalized throughput of the bottleneck client. The normalized throughput is assigned to the bottleneck client, and the bottleneck client is assigned to a fixed set.

Channel assignment for a wireless network

A key calculation method and a shared key generation method, the key calculation method including: generating two keys to perform a key calculation; calculating a first value based on coefficients having an identical coefficient value among coefficients included in each of the two keys; and performing a coordinates operation or an exponentiation operation based on the first value, wherein the calculating of the first value is performed with respect to each of coefficient values included in the two keys, excluding 0.

Key calculation method and key agreement method using the same

A carrier sense relationship and an interference relationship between logical links in a shared, broadcast, medium network are determined. Bandwidth for each of the links is estimated based on the carrier sense relationship and the interference relationship.

Estimating link interference and bandwidth

A tag authentication method, and a tag and reader performing the method are provided. The tag authentication method, including: a reader generating a first random number and transmitting the first random number to a tag; the reader receiving a second random number and a first verification value from the tag; the reader computing a second verification value based on the first random number and the second random number; and the reader comparing the first verification value and the second verification value.

Tag authentication method using rotation, and tag and reader performing the method

Growing community of inventors

Seoul, South Korea

Taekyoung Kwon