摘要:
Methods and apparatuses are provided that greatly expand the utility of conventional hollow waveguide-based sensors via either straight, substrate-integrated channels or via meandering (e.g., circuitous, curved or folded optical paths) waveguide sensor designs. Full- or hybrid-integration of the meandering hollow waveguide with light source, detector, and light-guiding optics facilitates compact yet high-performance gas/vapor and/or liquid sensors of the substrate-integrated hollow waveguide sensor.
摘要:
Provided are a wireless network system and a method of configuring the same, more particularly, a wireless network system and a method of configuring the same, in which a wireless network station desiring to transmit or receive data in a high-frequency band notifies a wireless network coordinator of its carrier transmission method to enable the wireless network coordinator to efficiently manage a network. An apparatus for transmitting or receiving data includes: a request command generation unit which generates a request command to secure network resources required to transmit or receive data before actually transmitting or receiving the data over a network; and a communication unit which transmits the request command.
摘要:
The system includes a rescue requester device including an urgent rescue key for a requester's urgent situation, a communication company server configured to receive an urgent situation from the rescue requester device and establish a call between the rescue requester device and a rescuer device, and when the urgent situation is transferred from the rescuer device to a security server, switch the call to a call between the rescue requester device and the security server and transmits a telephone number of the rescue requester and short message information to the rescuer device, a rescuer device configured to inform the urgent situation based on the telephone number of the rescue requester device and the short message information, and a security server configured to connect the rescue requester device and a secondary emergency contact point one-sidedly through the communication company server.
摘要:
Provided are an apparatus and method for transmitting data and an apparatus and method for receiving data, in which beam forming is performed in consideration of the communication capabilities of antennas of stations that perform directional communication in a high-frequency band. The apparatus for transmitting data includes a communication-capability-determination module which determines the communication capability of a receiver (RX) antenna module of a receiving station based on communication-capability data transmitted by the receiving station; an antenna-control module which controls a transmitter (TX) antenna module according to a beam-forming mode determined based on the communication capability of the RX antenna module and the communication capability of the TX antenna module; and a communication module which transmits data through the TX antenna module, wherein the beam-forming mode determines whether to transmit a TX antenna weight vector (AWV) pattern, whether to receive a feedback response pattern and whether to transmit an RX AWV pattern.
摘要:
An anti-sloshing moon pool structure is disclosed. The anti-sloshing moon pool structure of the present invention includes moon pool plates (112, 114 and 116), which are provided on a bow-side wall (401), a stern-side wall (403) and opposite sidewalls (405) of a moon pool (100), and a moon pool bottom block (130), which is provided on a bow-side lower edge (407) of the moon pool (100). The moon pool plates and the moon pool bottom block have protruding lengths within which they do not interfere with a maximum working area. Upper steps (112a, 112b, 114a, 114b, 116a, 116a-1, 116b and 116b-1) of the moon pool plates are disposed such that, when a ship is in a working position, they are lower than the free surface of the seawater, and lower steps (112c, 112d, 116c and 116d) of the moon pool plates are disposed such that, when the ship runs, they are lower than the free surface of the seawater.
摘要:
Provided are an apparatus and method for transmitting data and an apparatus and method for receiving data, in which beam forming is performed in consideration of the communication capabilities of antennas of stations that perform directional communication in a high-frequency band. The apparatus for transmitting data includes a communication-capability-determination module which determines the communication capability of a receiver (RX) antenna module of a receiving station based on communication-capability data transmitted by the receiving station; an antenna-control module which controls a transmitter (TX) antenna module according to a beam-forming mode determined based on the communication capability of the RX antenna module and the communication capability of the TX antenna module; and a communication module which transmits data through the TX antenna module, wherein the beam-forming mode determines whether to transmit a TX antenna weight vector (AWV) pattern, whether to receive a feedback response pattern and whether to transmit an RX AWV pattern.
摘要:
A display apparatus includes a display part to display an image thereon, a front cover to surround a front surface of the display part, a light source unit having a plurality of light sources and a light source supporter to support the plurality of light sources to emit light toward a predetermined illumination target, and a light reflector provided on a side of the front cover to reflect light emitted toward the predetermined illumination target, and having the predetermined illumination target. Thus, the display apparatus uses a plurality of light sources to improve an external appearance.
摘要:
Provided are an apparatus and method for transmitting data and an apparatus and method for receiving data, in which the transmission of uncompressed data over a wireless network can be performed by retransmitting an erroneous bit or a group of erroneous bits, if any, of each sub-packet including a number of bits or a number of groups of bits having different significance levels. The apparatus for transmitting data includes an error detection module which determines whether each of a plurality of portions of a transmitted packet having different significance levels is erroneous based on a received response packet; a data-packet generation module which generates a retransmission packet including one or more erroneous portions of the transmitted packet according to the results of the determination performed by the error detection module; and a communication module which transmits the retransmission packet through a communication channel.
摘要:
Disclosed herein is a mold for manufacturing a housing of a hydraulic unit of an anti-lock brake system for vehicles. The housing has a plurality of bores formed therein such that components, such as a plurality of valves, accumulators, hydraulic pumps, and a driving motor, and a plurality of connection pipes are mounted to the housing through the bores. The mold comprises a lower mold mounted in a stationary frame for defining a housing forming space where the lower part and side parts of the housing are formed, an upper mold mounted in a movable frame disposed on the stationary frame such that the movable frame is vertically moved a predetermined distance, the upper mold covering the upper part of the housing forming space of the lower mold to form the upper part of the housing, lower cores attached to the lower mold such that the lower cores are protruded from the inner lower surface of the lower mold to form the lower-side bores of the housing, an upper core attached to the upper mold for forming the upper-side bores of the housing, and a plurality of side cores disposed at the lower mold such that the side cores move into and out of the housing forming space defined in the lower mold through the lower mold in four directions to form the bores provided at the four sides of the housing. With the mold according to the present invention, a housing having a complicated structure is manufactured through injection molding of a resin material. Consequently, the housing is easily manufactured with increased productivity as compared with the conventional method of manufacturing the housing through an aluminum cutting process. Furthermore, the manufacturing costs of the housing are reduced.
摘要:
Provided is a lip synchronization method in a wireless A/V network. The method includes generating audio and video packets including time stamps and transmitting the audio and video packets to devices in the wireless A/V network, in which the time stamp has information indicating reproduction time points of both audio data included in the audio packet and video data included in the video packet.