Lg Display Co., Ltd.

Lg Innotek Co., Ltd.

Republic of Korea (national Disaster Management Research Institute)

Alps Electric Co., Ltd.

Lg Philips Lcd Co., Inc.

National Disaster Management Research Institute

National Disaster Management Institute

Tae Wook Lee

Chang Gone Kim

Ben Lee

Jae Jeong Kim

Yong Kon Lee

Cheol Kyu Lee

Gun Sik Jeong

Kyung Su Lee

Ji Kyoung Kim

Si Beum Cho

KyungSu Lee

Hyunju Kim

Jae Ho Lee

In Ho Ahn

Jing Zhao

Jin Chul Choi

Sung Geun Bae

Da Jin Sol Kim

Chung Hyun Song

Kevin Gatimu

Mohammed Sinky

Byeong Jong Ryu

A device for establishing a communication network and collecting situation information at a site of a collapse disaster is disclosed. The device includes a ground dronedeployed at the site of the collapse disaster, the ground dronehaving a communication devicemounted thereon, a flying dronemounted on and carried by the ground droneto fly and photograph the site of the collapse disaster, a camera devicemounted on the ground droneto photograph surroundings of the ground drone, a storageinstalled on the ground drone, and a plurality of repeater modulesconnected by the wireless communication network to relay wireless communications between the ground drone, the flying drone, and a command and control center, wherein the storageaccommodates the repeater modules, and throws the repeater modulesin response to an operation signal.

Disaster situation communication network infrastructure supplementation method and system using unmanned mobile device

A buried person search device using a detachable module is disclosed. The device includes a ground dronedeployed at a site of a collapse disaster, the ground dronehaving a communication deviceand a first beacon, a camera devicemounted on the ground droneto photograph surroundings of the ground drone, a storageinstalled on the ground drone, a plurality of repeater modulesconnected by a wireless communication network to relay wireless communications between the ground drone, a flying drone, and a command and control center, each of the repeater moduleshaving a second beacon, and a sensing deviceinstalled on the ground droneor the repeater modulesto collect a sound, wherein the storageaccommodates the repeater modules, and throws the repeater modulesin response to an operation signal.

Buried person search device using detachable module

A device can provide an air state detection floating device capable of remaining in the air, the device comprising: a power supply unit; at least one memory for storing instructions; at least one processor; a communication unit for transmitting and receiving data; a driving unit for generating a driving force; a first sensing unit for detecting information on an air state of an enclosed space; and a second sensing unit for generating location information, wherein the instructions are executable by the processor so as to the processor to perform operations, and the operations comprise: an operation that generates a control signal for movement in the enclosed space on the basis of the data; and an operation that controls the driving unit based on the control signal.

Air state detection floating device capable of remaining in air

The floating-type contamination measurement apparatus according to embodiments of the present invention can provide a body part; a buoyancy providing part, which is received to the body part and provides buoyancy to the body part; and a measurement part, which is received to the body part and measures the level of contamination in a closed space.

Floating-type contaminant measuring apparatus

Discussed is an apparatus for recovering a motion vector to perform error concealment on received video stream, including: a first selecting unit selecting a first motion vector from a first slice that is above a lost slice, and selecting a second motion vector from a second slice that is below the lost slice; a second selecting unit determining at least one first orthogonal motion vector that is orthogonal to the first motion vector, and determining at least one second orthogonal motion vector that is orthogonal to the second motion vector; and a recovering unit computing a lost motion vector, comprised in the lost slice, using a weighted average of valid motion vectors, wherein the valid motion vectors include at least one of the first motion vector, the second motion vector, the first orthogonal motion vector, and the second orthogonal motion vector.

Apparatus and method for recovering spatial motion vector

Discussed is an apparatus for transmitting encoded video stream that may include an encoder configured to encode a video stream using a predetermined compression standard; a parser configured to subdivide the encoded video stream into a plurality of sub-streams and parse the sub-streams; a MUX configured to segregate a first data which is NAL unit having SPS, PPS, or slice header and a second data which is NAL unit having slice data from the parsed sub-stream; a first packet generator configured to generate a TCP packet using the first data by the sub-stream and transmit the TCP packet through a TCP tunnel; and a second packet generator configured to generate a UDP packet using the second data by the sub-stream and transmit the UDP packet through a UDP tunnel.

Apparatus for transmitting encoded video stream and method for transmitting the same

Discussed is an apparatus for transmitting an encoded video stream, comprising: a slice generating unit that divides a frame, comprised in a video stream, into at least one or more slice; and a transmitting unit transmitting the slice in units of a packet within a slice deadline, which is a time limit required for transmission of the slice, the transmitting unit that preferentially transmits a header packet that contain a slice header information over other packets, and the slice header that comprises of information necessary for reconstructing the slice, wherein the transmitting unit comprises: a packet transmitter that retransmits the packet when the packet fails to be transmitted within the predetermined retry limit; and a header protector performing control for the header packet to be repeatedly transmitted within the slice deadline even when number of retransmissions of the header packet exceeds the predetermined retry limit.

A liquid crystal display device and a controlling method thereof are provided. The liquid crystal display device includes a liquid crystal display panel screen divided into a plurality of areas; a plurality of backlight sources to selectively irradiate light respectively to the divided areas of the screen; and a controller to obtain at least one intermediate brightness value associated with data for at least one of the divided areas and to control a brightness of at least one of the backlight sources corresponding to the at least one divided area according to the at least one intermediate brightness value.

Liquid crystal display with controllable backlight for increased display quality and decreased power consumption

A backlight driving apparatus of a liquid crystal display (LCD) apparatus including a master trans and a slave trans for supplying a current to a plurality of lamps, and a master driver and a slave driver for driving the lamps, includes an operated condition unit that converts an AC voltage generated in accordance with a phase difference between a master AC voltage and a slave AC voltage fed back from the master trans and the slave trans, respectively, into an analog DC voltage; a protect controller that determines an error is generated during an operation of the lamps using the analog DC voltage and outputs an operating error signal when an error is generated; and a lamp driving controller that stops driving the master driver and the slave driver in response to the operating error signal.

Apparatus and method for driving backlight of liquid crystal display apparatus

The disk clamp apparatus and a spindle motor having the same according to the present invention has an industrial applicability in that a radial force of a claw on a disk is greater than a radial force of an arm to the disk to prevent the radial force of the arm applying to the disk from affecting the disk, whereby matched center of the clamp body with a center of the disk by the law is not affected by an arm, such that the center of the disk comes to have a relatively smaller deviation from the center and to thereby enhance the reliability of the product.

Apparatus for clamping disk and spindle motor having the same

A backlight driving circuit and a method for driving the same, which are capable of preventing a flicker phenomenon and delay of response, are disclosed. The backlight driving circuit includes a selective filtering unit for comparing dimming signals currently supplied for a current frame with dimming signals previously stored for a previous frame, to determine how abruptly an image of the current frame has varied from an image of the previous frame, and outputting the dimming signals for the current frame after modulating duty ratios of the dimming signals for the current frame selectively.

Backlight driving circuit and driving method for driving the same

Provided is a sintered bearing with oil for a spindle motor. The bearing is characterized in that at least one portion of upper and lower sides of the bearing is denser than other portions of the bearing.

Bearing and spindle motor

An LCD device with an improved contrast ratio and a reduced electric power consumption and a driving method thereof are disclosed. The LCD device and the driving method thereof generate a data modulation control signal using single frame image data to be displayed on a liquid crystal panel, and then generating a plurality of modulated local dimming control signals for a plurality of divisional regions of the divided single frame image data. A modulated data, in which the single frame image data is compensated with the data modulation control signal is generated and applied to the liquid crystal panel. A plurality of driver signals each corresponding to the modulated local dimming control signals are applied to the blocks of a backlight unit. The divisional regions are opposite to the blocks, respectively.

Liquid crystal display device and driving method thereof for improving a contrast ratio

An LCD device adapted to apply an optimized luminance in correspondence with a brightness of each divisional region of image is disclosed. The LCD device uses dimming curves, which are provided differently from each other, for divisional regions which are divided from one frame and have different pixel numbers. Therefore, the LCD device can a luminance optimized to a brightness of each divisional region of image, thereby preventing a luminance mismatching phenomenon and a luminance nullity phenomenon.

Liquid crystal display device and driving method thereof

A spindle motor is provided. The spindle motor includes a base, a bearing housing, a bearing, a rotation shaft, a stator, a bushing, and a rotor. The bearing housing is installed on the base. The bearing is fixed inside the bearing housing. The rotation shaft is installed to be supported by and rotate on the bearing. The stator is disposed around the bearing housing. The bushing is coupled to the rotation shaft. The rotor is coupled to the bushing to rotate through interaction with the stator.

Growing community of inventors

Ulsan, South Korea

Tae Wook Lee