Abstract:
Designs and techniques associated with power amplifiers for amplifying RF signals to provide variable power amplification and improved linearity in various RF amplification circuits, including power amplifiers operated under the power back-off conditions.
Abstract:
An ice supply device is capable of supplying cubed ice, sliced ice, and grinded ice. The ice supply device is configured to supply cubed ice, sliced ice, or grinded ice based on a speed and direction of rotation of a rotary blade included in the ice supply device.
Abstract:
A method for storing a conversation upon a user's real-time request in a Converged-IP Messaging (CPM) service is provided. The method includes storing a conversation in a message storage server on a network or stopping the storage of the conversation upon a user's request. A target that can be stored within a conversation includes a pager mode message, a large message, and media delivered through the session. In this manner, media in the conversation may be limited to media selected by a user.
Abstract:
A groundwater radon reduction apparatus is provided. The groundwater radon reduction apparatus includes: a housing in which groundwater falls down; a rotating member installed in the housing and rotated by a falling force of the groundwater to form the groundwater into water drops; a plurality of power transmission members connected to both ends of the rotating member to transmit power, and receiving the rotating force of the rotating member; and a plurality of ventilation units coupled to one ends of the power transmission members inside the housing, respectively, and rotated together with the power transmission members by the rotation force of the rotating member to discharge radon gases within the water drops to the outside.
Abstract:
An ice bank of a refrigerator is provided. The ice bank includes an ice accommodation chamber storing ice pieces made by an ice maker, and an ice pressing unit circulating the ice pieces by pressing the ice pieces for preventing sticking of the ice pieces in the ice accommodation chamber.
Abstract:
An illumination unit and an image projection apparatus employing the same. The illumination unit includes: a first reflective surface reflecting light incident thereon; a light-emitting device generating and emitting illuminating light; and a second reflective surface reflecting light emitted from the light-emitting device to a light source surface that includes the light-emitting device.
Abstract:
Provided are a thin film transistor and method of fabricating the same, in which an amorphous silicon layer is formed on a substrate, a capping layer containing a metal catalyst having a different concentration according to its thickness is formed on the amorphous silicon layer, the capping layer is patterned to form a capping layer pattern, and the amorphous silicon layer is crystallized, such that the density and position of seeds formed at an interface between the amorphous silicon layer and the capping layer pattern is controlled, thereby improving the size and uniformity of grains, and in which polycrystalline silicon of desired size and uniformity is selectively formed at a desired position by one crystallization process, resulting in a thin film transistor having excellent and desired properties.
Abstract:
Disclosed are a method of producing a target protein in a biologically-active, soluble form in prokaryotic cells and polycistronic vectors therefor.
Abstract:
Disclosed is an adaptive modulation scheme and apparatus thereof using an Analog/Digital (AJO) converter with variable bit resolution or clock frequency, the A/D converter including a transmitter including a modulator to modulate data to be transmitted according to a modulation scheme received from a receiver, an A/D converter to convert the modulated data into an analog signal using a bit resolution or a clock frequency received from the receiver, and a radio frequency (RF) processor to transmit the analog signal to the receiver through a wireless channel and a receiver including an RF processor to receive data through a wireless channel, a calculator to calculate a Signal to Noise Ratio (SNR) of the data received through the RF processor, and a modulation controller to search a predetermined setting table for a corresponding modulation scheme and bit resolution using the calculated SNR and to transmit to a transmitter.
Abstract:
A method of fabricating a CMOS thin film transistor includes: providing a substrate; forming an amorphous silicon layer on the substrate; performing a first annealing process on the substrate and crystallizing the amorphous silicon layer into a polysilicon layer; patterning the polysilicon layer to form first and second semiconductor layers; implanting first impurities into the first and second semiconductor layers; implanting second impurities into the first or second semiconductor layer; and performing a second annealing process on the semiconductor layers to remove the metal catalyst remaining in the first or second semiconductor layer, on which the second impurities are implanted, wherein the first impurities are implanted at a dose of 6×1013/cm2 to 5×1015/cm2, and the second impurities are implanted at a dose of 1×1011/cm2 to 3×1015/cm2.
Abstract translation:制造CMOS薄膜晶体管的方法包括:提供衬底; 在所述基板上形成非晶硅层; 在所述衬底上进行第一退火处理并将所述非晶硅层结晶成多晶硅层; 图案化多晶硅层以形成第一和第二半导体层; 将第一杂质注入到第一和第二半导体层中; 将第二杂质注入第一或第二半导体层; 以及对所述半导体层进行第二退火处理,以去除留在其中注入所述第二杂质的所述第一或第二半导体层中的金属催化剂,其中所述第一杂质以6×10 13 / cm 2至5× 1015 / cm2,第1杂质以1×10 11 / cm 2的剂量注入3×1015 / cm 2。