Abstract:
The invention relates to a base station antenna, that includes two or more reflector plates, each provided with a radiating element. The base station antenna also includes a reflector plate connecting member connected to each reflector plate for enabling the rotation of the reflector plates. The base station antenna also includes a reflector plate controller providing control signals for controlling the rotation and stoppage of the reflector plates.
Abstract:
A composition, including a liquid crystal polymer or oligomer having a terminal hydroxyl group, and a cross-linking agent including a bismaleimide compound, an epoxy resin or a combination thereof, wherein the liquid crystal polymer or oligomer is represented by Formula 1: Z1—(R1)m—(R2)n—Z2 (1), wherein R1 is represented by Formula 2: —X1—Ar1—Y1— (2), wherein X1 and Y1 are each independently selected from the group consisting of O, CO and NR″, in which R″ is independently selected from the group consisting of a hydrogen atom, a substituted or unsubstituted C1-C20 alkyl group, and a substituted or unsubstituted C6-C30 aryl group, and Ar1 includes at least one divalent aromatic or alicyclic organic group selected from the group consisting of Formula 3:
Abstract:
The present invention relates to a multi-blade electric rotary razor which comprises a razor blade cartridge turned by a motor, and at least one pair of razor blade assemblies disposed at an equal-angle distance at the razor blade cartridge along a direction in which the razor blade cartridge rotates, at least one pair of razor blades (hereinafter referred to as first razor blades) being arranged in an overlapping manner at a predetermined distance at the razor blade assembly along a radius direction of the razor blade cartridge. The electric rotary razor of the present invention has a structure of a wet shaver where multiple razor blades are arranged, and uses the motor to turn the razor blade cartridge during shaving for user convenience and thorough shaving. The multi-blade razor blade assembly alleviates a dermal stimulation, minimizes a possibility of a scar, and does not require shaving cream, making shaving convenient and unhindered by time and space.
Abstract:
A composition for producing an organic insulator is provided which comprises an organic-inorganic hybrid material (as defined). The hybrid material shows high solubility in organic solvents and monomers, and superior adhesion to substrates. In addition, the hybrid material displays a high dielectric constant and a high degree of crosslinking. Based on these advantages, the composition comprising the organic-inorganic hybrid material can be utilized during the fabrication of various electronic devices by a wet process. A method for producing the organic insulator while utilizing the composition also is provided, as well as the resulting organic insulator, and an organic thin film transistor which incorporates the resulting insulating layer.
Abstract:
The present invention includes a class-E power amplifier, comprising a driver stage (DS) including a first power amplifier with transistors, to which an input signal is inputted; a main stage (MS), including a second power amplifier with transistors, whose input is connected to the output of the DS; and a first LC resonator whose one end is connected to the output of the DS and the other end to the ground as an AC equivalent circuit and a second LC resonator whose one end is connected to the input of the MS and the other end to the ground as an AC equivalent circuit. In accordance with the present invention, as the voltage stress is reduced on the CMOS class-E power amplifier, the application of the high power supply voltage may be allowed and therefore the load impedance may be high while the same efficiency is maintained.
Abstract:
Disclosed is a composition for forming a board. The composition includes a maleimide-based compound including at least three maleimide groups and a liquid crystalline polymer or oligomer. A prepreg and a board are each fabricated using the composition.
Abstract:
A method and apparatus for providing a mobile service with the use of a code pattern is disclosed In one embodiment, the method comprising: taking a photograph of a code pattern image, decoding the photographed code pattern image so as to obtain code information, extracting uniform resource locator (URL) information corresponding to the code information, transmitting a content information request message to a service provider server corresponding to the URL information, and receiving content information corresponding to the URL information from the service provider server. According to embodiments of the present invention, it is possible to provide various and convenient mobile services to mobile terminal users using a mobile terminal, having a camera, and a code pattern containing the URL information.
Abstract:
A method of preparing a semiconductor package including disposing photosensitive adhesive film on a reinterconnected rear surface of a wafer on which the through electrodes are disposed, and forming a pattern corresponding to the through electrodes to prepare the semiconductor package.
Abstract:
Provided are a method and an apparatus for providing three-dimensional (3D) digital content by using a conventional system for providing two-dimensional (2D) digital content. The method includes generating an elementary stream (ES) regarding first data of 2D digital content, generating an ES regarding second data of 3D digital content, packetizing the ESs of the first data and the second data, and recording) the packetized second data and content information of the second data within header information of multiplexed stream of the packetized first data.
Abstract:
Provided are a method and apparatus for generating a stream, and a method and apparatus for processing of the stream. The method of generating the stream includes: generating an elementary stream including three-dimensional (3D) image data providing a 3D image, and 3D detail information for reproducing the 3D image; generating a section including 3D summary information representing that a transport stream to be generated from the elementary stream provides the 3D image; and generating the transport stream with respect to the section and the elementary stream.