Abstract:
Apparatuses and methods for transmitting and receiving in a multi-antenna system are provided. A receiver for reducing a quantization error of channel information feedback in a multi-antenna system includes a restore vector generator for selecting a codeword ck and d determining a real part wkreal and an imaginary part wkimag of a restore vector corresponding to the codeword; and a post-processor for performing post-processing by multiplying the real part wkreal of the restore vector by a first reception signal and multiplying the imaginary part wkimag of the restore vector by a second reception signal.
Abstract:
A method of fabricating a semiconductor device includes providing a semiconductor substrate having an active surface, thinning the substrate by removing material from a second surface of the substrate opposite the active surface, bonding a metal carrier to the second surface of the thinned substrate, forming a via opening in the thinned substrate, forming a conductive member in the via opening, and patterning the metal carrier bonded to the second surface of the thinned substrate to form a metal pattern.
Abstract:
Method and apparatus for selecting an RS mode in a BWA communication system are provided. In a method for a BS to select an RS mode in a BWA communication system, bidding prices are received from a set of RSs covered by the BS. The winner RS of at least one or more auctions is determined on the basis of the bidding values and the interference information of the RS set. The winner RS is set to operate in an active mode.
Abstract:
A photonic crystal light emitting device including: a light emitting diode (LED) light emitting structure including a first conductive semiconductor layer, a second conductive semiconductor layer, and an active layer interposed between the first and second conductive semiconductor layers; and a first photon-recycling light emitting layer formed on one surface of the first conductive semiconductor layer, opposite to the active layer, wherein the first photon-recycling light emitting layer absorbs a primary light emitted from the LED light emitting structure and emits a light having a different wavelength from that of the primary light, and a photonic crystal structure is formed on an entire thickness of the first photon-recycling light emitting layer.
Abstract:
Provided is a weight control system that can include: an upper plate positioned in a lower portion of the system; at least one of, a first magnet or a first electromagnet, configured to be concentrically engaged with the upper plate; an upper internal core; a coil; and an upper plate housing configured to receive the upper internal core and the coil, the upper plate housing being coupled to at least one of, the first magnet or the first electromagnet, wherein, when power is supplied to the system, an induced current is generated in the upper internal core and the coil to create a first centrifugal magnetic field configured to rotate the upper plate and at least one of, the first magnet or the first electromagnet.
Abstract:
An apparatus for providing multiple screens and a method of dynamically configuring multiple screens are provided. The apparatus for providing multiple screens includes a digital signal processing module which receives predetermined information and restores a service based on the predetermined information, a service processing module which displays one or more logical screens associated with the service, and an output module which arranges the logical screens provided by the service processing module at different locations on a display screen. The logical screens have attribute information indicating an order of displaying the logical screens that are mapped to the display screen.
Abstract:
Provided are a high-performance one-transistor floating-body DRAM cell device and a manufacturing method thereof. The one-transistor floating-body DRAM cell device includes: a semiconductor substrate; a gate stack which is formed on the semiconductor substrate; a control electrode which is formed on the semiconductor substrate and surrounded by the gate stack; a floating body which is formed on the control electrode that is surrounded by the gate stack; source/drain which are formed at left and right sides of the floating body; an insulating layer which insulates the source/drain from the semiconductor substrate and the control electrode; a gate insulating layer which is formed on the floating body and the source/drain; and a gate electrode which is formed on the gate insulating layer. In the cell device having a double-gate structure, charges can be stored in a non-volatile manner by the control electrodes, so that it is possible to improve a degree of integration of devices, a uniformity of characteristic, and a sensing margin.
Abstract:
A dielectric multilayer structure of a microelectronic device, in which a leakage current characteristic and a dielectric constant are improved, is provided in an embodiment. The dielectric multilayer structure includes a lower dielectric layer, which is made of amorphous silicate (M1-xSixOy) or amorphous silicate nitride (M1-xSixOyNz), and an upper dielectric layer which is formed on top of the lower dielectric layer and which is made of amorphous metal oxide (M′Oy) or amorphous metal oxynitride (M′OyNz).
Abstract:
A method of forming a fine pattern begins with providing a c-plane hexagonal semiconductor crystal. A mask having a predetermined pattern is formed on the semiconductor crystal. The semiconductor crystal is dry-etched by using the mask to form a first fine pattern on the semiconductor crystal. The semiconductor crystal including the first fine pattern is wet-etched to expand the first fine pattern in a horizontal direction to form a second fine pattern. The second fine pattern obtained in the wet-etching the semiconductor crystal has a bottom surface and a sidewall that have unique crystal planes, respectively. The present fine-pattern forming process can be advantageously applied to a semiconductor light emitting device, particularly, to a phonic crystal structure required to have fine patterns or a structure using a surface plasmon resonance principle.
Abstract:
Transistors that include multilayered dielectric films on a channel region are provided. The multilayered dielectric comprises a lower dielectric film that may have a thickness that is at least 50% the thickness of the multilayered dielectric film and that comprises a metal oxide, a metal silicate, an aluminate, or a mixture thereof, and an upper dielectric film on the lower dielectric film, the upper dielectric film comprising a Group III metal oxide, Group III metal nitride, Group XIII metal oxide or Group XIII metal nitride. A gate electrode is provided on the multilayered dielectric film.