摘要:
A method of coding a moving picture is provided that reduces blocking artifacts. The method can include defining a plurality of defining pixels S0, S1, and S2, which are centered around a block boundary. If a default mode is selected then frequency information of the surroundings of the block boundary is obtained. A magnitude of a discontinuous component in a frequency domain belonging to the block boundary is adjusted based on a magnitude of a corresponding discontinuous component selected from a pixel contained entirely within a block adjacent the block boundary. The frequency domain adjustment is then applied to a spatial domain. Or, a DC offset mode can be selected to reduce blocking artifacts in smooth regions where there is little motion.
摘要:
A method and an apparatus for manufacturing a semiconductor device is provided. The method for manufacturing in a process for forming a polysilicon-metal dielectric on a semiconductor substrate, includes: measuring a flow of a mixing gas for forming a polysilicon-metal dielectric; providing the mixing gas to a location outside a process chamber when the flow of the mixing gas is in a first unstable state; and providing the mixing gas to inside of the process chamber to form the polysilicon-metal dielectric when the flow of the mixing gas is in a second state more stable than the first state. Flows of the respective gases that form the mixing gas are controlled by their respective injection valves, and abnormalities in the flows can be detected. Accordingly, defects caused by non-uniform dopant density in the mixing gas may be prevented.
摘要:
The invention provides a lens transfer device including at least one lens and a lens barrel. The lens barrel has a lens receiving part with the lens arranged in an inner space thereof and an extension extending radially from an outer surface of the lens receiving part. An actuator has a body and an output member at a leading end of the actuator to contact the extension, and is adapted to expand/contract and bend in response to an external supply voltage to provide a driving force necessary for transfer of the lens barrel through the output member. A pressing member has a free end contacting a rear end of the actuator to force the actuator against the extension, and a guide guides the transfer of the lens barrel along an optical axis.
摘要:
A thin type reforming apparatus used for a fuel cell is provided. In the thin type reforming apparatus, a substrate has a passage formed therein, and a fuel inlet introduces fuel to the passage. An evaporator is disposed within the substrate downstream of the fuel inlet, and includes a bubble remover for imparting a flow resistance to the fuel in a liquid state, removing bubbles and vaporizing the fuel. A reformer has a passage formed downstream of the evaporator, and reforms the fuel to hydrogen gas through a heat absorbing reaction. A CO remover has a passage formed downstream of the reformer and removes CO gas included in the hydrogen gas through a heat radiating reaction. A cover covers an upper portion of the substrate and sealing the passages from an outside.
摘要:
A display device and a method for driving the same are disclosed. The display device confirms whether display data applied to a display panel are uniformly maintained for a predetermined time. As a result of confirmation, if the display data are uniformly maintained for a predetermined time, pixels of the display panel are made for a predetermined block unit so that screen save modes are performed to sequentially apply screen save mode data to pixels of each block. The screen save modes are completed after there are sequentially performed for all blocks on the display panel. Thus, uniform luminance deviation can be obtained on the display panel of the display device and further picture quality of the display device can be improved.
摘要:
Provided is an apparatus and method for simultaneous optical wavelength conversion and optical clock signal extraction using semiconductor optical amplifiers (SOAs). The apparatus includes: a wavelength converter receiving a pump beam having input information and a probe beam having a different wavelength from the pump beam, and outputting the pump beam with an overshoot shifted to a red wavelength and an undershoot shifted to a blue wavelength due to non-linear characteristics and self-phase modulation of semiconductor optical amplifiers (SOAs) and the probe beam delivered the input information from the pump beam; an optical divider dividing output paths of the probe beam to which the input information has been delivered and the pump beam having the overshoot and the undershoot; a converted-wavelength extractor filtering the probe beam received from the optical divider; and a clock data regenerator obtaining a pseudo return-to-zero (PRZ) signal from the pump beam received from the optical divider and extracting a clock signal from the PRZ signal. The apparatus and method can simultaneously perform wavelength conversion and optical clock signal extraction on an NRZ signal using an optical method, without converting the NRZ signal into an electrical signal.
摘要:
A high flow polyester composition is disclosed, which comprises at least one polyester, at least one flow enhancing ingredient of structure (III), wherein R3 is a C1-C20 alkyl group optionally having one or more hydroxy group substituents, a C3-C20 cycloalkyl group, a C6-C20 aryl group, a C1-C20 alkoxy group optionally having one or more hydroxy group substituents, or a C6-C20 aryloxy group; and a dicycloaliphatic diepoxy compound, in an amount sufficient to provide 5 to 300 milliequivalents of epoxy per kilogram of polyester. The composition further optionally comprises reinforcing fillers, impact modifiers, a property-enhancing thermoplastic such as polycarbonate and flame retardant chemicals. The compositions are suitable for making automotive, electric and electronic parts.
摘要:
An optical network terminator of the present invention includes an optical wavelength division multiplexer for receiving an optical signal and incoherent light. An optical detection unit converts a downstream high speed and low speed optical signals into electrical signals. A laser diode converts an upstream signal into an optical signal. A high speed driving unit is supplied with power from a power supply unit to drive a forward-biased laser diode and establish a data and video channel. A high speed reception unit is supplied with the power to receive a downstream data and video channel. A charging unit outputs charged power at the time of a power failure. A low speed driving unit is supplied with the charged power to reverse-bias the laser diode to establish a voice channel. A low speed reception unit is supplied with the charged power to receive a voice channel.
摘要:
An oven, effectively and rapidly cooling a door by passing a sufficient quantity of cooling air through the door, is disclosed. The oven includes an outer case, an inner case, a door opening and closing the inner case, and a blower chamber having a cooling fan and provided at the upper side of the inner case. The door includes an inner plate and a frame to form an opened lower end. The frame has holes formed in the upper side to flowing air discharged by the cooling fan between the inner plate and an outer plate. A vent hole communicating with the blower chamber is provided in the upper end of the cooking chamber to pass hot air of the cooking chamber through the vent hole. Around the vent hole, a partition member is provided for preventing the hot air from being mixed with air discharged by cooling fan.
摘要:
A temperature measuring method has the steps of (a) coating a mixture of fluorescent dye on a surface of the micro device, (b) heating the micro device with a calibration heater, (c) acquiring an emission intensity image of the mixture with a camera by illuminating the surface of the micro device with a light, (d) averaging the emission intensity image by units of a plurality of pixels, (e) calculating a temperature calibration curve indicating a change of the emission intensity with respect to the temperature, from the image averaged by units of a plurality of pixels, and (f) removing the calibration heater, acquiring an emission intensity image by actually driving the micro device, and converting the acquired emission intensity image into a temperature, using the temperature calibration curve. According to the method, the temperature calibration curve is obtained through the averaged emission intensity image, and a temperature field on the micro device is measured using the temperature calibration curve. Thus, the emission intensity of fluorescent dye can correct a deviation occurring between each pixel of the image, thereby making it possible to precisely measure the temperature field in microscale.