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公开(公告)号：US10474845B2
公开(公告)日：2019-11-12
申请号：US15631916
申请日：2017-06-23
Inventor： Souhwan Jung , Ngoc-Tu Chau , Jungsoo Park
Abstract: A duo operating system (OS) for Android security is provided. The duo operating system includes an Android kernel providing drivers for a hardware and an interface of a mobile device, a security platform storing a security key of an integrity check when a kernel is booted in a Linux space, a first layer containing a Linux-based operating system executing a mobile device monitoring and a mobile device security examination, and a second layer containing one or more container-based Android operating systems being a user space layer interacting with users through Android applications.
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公开(公告)号：US10453489B1
公开(公告)日：2019-10-22
申请号：US16236029
申请日：2018-12-28
Inventor： Jaejin Lee , Seongkwon Jeong
IPC: G11B20/10 , G11B7/0065 , G11B5/74 , G11B5/02
Abstract: Provided is a signal detection method of a staggered two-dimensional bit-patterned media and a recording medium and an apparatus for performing the method. The signal detection method of staggered two-dimensional bit-patterned media includes the down-track detection step, which detects a signal through a horizontal direction (x) path along the down-track, the first cross-track detection step, which detects a signal through a first vertical direction (z1) path that allows for passing through of a plurality of pixels arranged on a same line along cross-track perpendicular to the down-track and a plurality of pixels arranged in a staggered manner toward the horizontal direction (x) path with respect to the cross-track, and the second cross-track detection step, which detects a signal through a second vertical direction (z2) path that allows for passing through of a plurality of pixels arranged on a same line along the cross-track and a plurality of pixels arranged in a staggered manner toward an opposite path to the horizontal direction (x) path with respect to the cross-track.
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343.发明授权公开(公告)号：US10372444B2
公开(公告)日：2019-08-06
申请号：US15835028
申请日：2017-12-07
Inventor： Souhwan Jung , Seongeun Kang
Abstract: An Android dynamic loading file extraction method includes checking if at least one call of DexClassLoader, BaseDexClassLoader, PathClassLoader and openDexFile is made to a decompile code of Android Application Package (APK), hooking a dynamic loading method created in dynamic loading mechanism when the at least one call is made, extracting a dex path from the dynamic loading method, identifying if a File.delete method is invoked when the dex path is extracted, hooking the File.delete method when the File.delete method is invoked, extracting a path of the File.delete method and identifying if the path of the File.delete method is matched with the dex path, and extracting a dex file or jar file from the decompile code of APK when the path of the File.delete method is unmatched with the dex path. Accordingly, the dex file used in dynamic loading mechanism of the malicious application is extracted, and static analysis of the hidden codes is conducted using reverse engineering mechanism.
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公开(公告)号：US10264548B2
公开(公告)日：2019-04-16
申请号：US15045621
申请日：2016-02-17
Inventor： Young Han Kim , Thanh Hai Ngo
Abstract: Provided are a mobile evolve packet core (EPC) and a paging method using the same. The mobile EPC includes: a mobile EPC server providing an environment for operating a set of virtual machines (VMs), each of the virtual machines serving as a functional entity of a core network of a mobile communication system; a transmission module transmitting/receiving between the mobile EPC server and components of the mobile communication system or between the mobile EPC server and another mobile EPC server; and a mobile means with the mobile EPC server and the transmission module and providing mobility, wherein the mobile EPC moves to a disaster area to form a public safety network (PSN).
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公开(公告)号：US10264176B2
公开(公告)日：2019-04-16
申请号：US15320720
申请日：2014-07-01
Inventor： Gyeyoung Kim , Heesub Lee , Gyungju Lee
Abstract: A gaze tracking device and method, and a recording medium for performing the same are disclosed. The gaze tracking device, which is a device for tracking the gaze of a person present in an area in which the gaze tracking device is located, sets a photographing unit of the gaze tracking device to a wide-angle mode, photographs an area within a wide-angle view of the photographing unit, detects the person from a photographed image, and converts the wide-angle mode of the photographing unit into a narrow-angle mode so as to track the gaze of the person when the person is detected from the photographed image, wherein when tracking the gaze of the person by converting the wide-angle mode of the photographing unit into the narrow-angle mode, if the person is out of the shooting range of the narrow-angle mode while tracking the gaze of the person in the narrow-angle mode of the photographing unit, the photographing unit is converted from the narrow-angle mode into the wide-angle mode so as to track the gaze of the person by re-searching for the person.
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Patent Agency Ranking
公开(公告)号：US20190087732A1
公开(公告)日：2019-03-21
申请号：US15852576
申请日：2017-12-22
Inventor： Young Tack PARK , Wan Gon LEE , Sung Hyuk BANG
Abstract: Disclosed are ontology-based reasoning apparatus, system, and method using user-defined rules. The ontology-based reasoning apparatus includes a memory storing two or more triple data; and a processor connected to the memory, in which the processor parses user-defined rules input from a user in ontology-based rules to generate a plurality of condition meta information corresponding to a plurality of conditions included in a condition section of the user-defined rules and one result meta information corresponding to one result included in a conclusion section of the user-defined rules, retrieves a plurality of triple data in two or more triple data prestored using the plurality of condition meta information, and reasons new triple data from the plurality of triple data retrieved using the result meta information to store the reasoned new triple data in the memory.
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公开(公告)号：US10232734B2
公开(公告)日：2019-03-19
申请号：US15860798
申请日：2018-01-03
Inventor： Hyeong Joon Ahn
Abstract: Provided is a linear motor motion stage having a passive reaction force compensation function. The linear motor motion stage includes: a base; a magnet track moving on the base; a mover which is moved on a surface of the magnet track by an electromagnetic force generated in a gap with the magnet track; first and second horizontal springs arranged between one side and the other side, respectively, of the magnet track and the base and configured to attenuate a reaction force applied to the base by movement of the mover; and a cross spring arranged between a lower side of the magnet track and the base and configured to attenuate the reaction force. Herein, the linear motor motion stage controls reaction force compensation applied to the linear motor motion stage by controlling the stiffness of the cross spring.
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公开(公告)号：US20190044570A1
公开(公告)日：2019-02-07
申请号：US15752562
申请日：2016-10-18
Inventor： Seongsoo LEE , Youngsan SHIN
CPC classification number: H04B1/69 , H03M1/12 , H04B1/7105 , H04B15/00 , H04L25/03
Abstract: A method for reducing electromagnetic interference (EMI) in a system that periodically operates with a fixed sampling frequency includes reading a digital signal to which an analog signal received from a sensor is converted, generating a time delay that is modulated each cycle of the fixed sampling frequency with software, starting to execute a digital signal processing algorithm by applying the time delay that is modulated, and transmitting to another device through write of the digital signal. Accordingly, the EMI spectrum is spread through the time delay that is modulated with software, resulting in reduced EMI level.
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公开(公告)号：US10172297B2
公开(公告)日：2019-01-08
申请号：US14964888
申请日：2015-12-10
Inventor： Woncheol Lee , Hyungmin Chang , Joopyoung Choi , Deokwon Yun , Kyumin Park
Abstract: A monitoring and control system and method for a plant factory based on TV white spaces (TVWSs) are disclosed. The monitoring and control system for the plant factory includes a sensor assembly installed inside and outside a plant factory and measuring an environmental state, an actuator assembly installed inside the plant factory and creating a growing environment, and a central data processing assembly assigning a TV white space (TVWS) channel to the sensor assembly and the actuator assembly, receiving the environmental state from the sensor assembly through the TVWS channel, generating a control signal controlling the actuator assembly to meet a predetermined conditions for an internal environment of the plant factory for an optimal state of growth of crops in response to the environmental state, and transmitting the control signal to the actuator assembly through the TVWS channel.
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350.发明申请公开(公告)号：US20180357813A1
公开(公告)日：2018-12-13
申请号：US15710442
申请日：2017-09-20
Inventor： Min-Cheol HONG , Beomsu KIM , Tien-Daht Nguyen
Abstract: Provided are a hole filling method using estimated spatio-temporal background information and a recording medium and apparatus for performing the same. The present disclosure is providing a hole filling method using estimated spatio-temporal background information, the hole filling method being capable of estimating temporal background information, estimating spatial background information, and merging the temporal background information and the spatial background information to perform a hole filling process, and a recording medium and apparatus for performing the same.
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