摘要:
Disclosed is an apparatus for correcting a value of a defective pixel based on values of neighboring pixels of the defective pixel, the apparatus includes a plurality of first-stage median filters for receiving a value of a target pixel and values of neighboring pixels of the target pixel, and outputting median values of the received values; and at least one second-stage median filter for receiving the value of the target pixel and the median values from the first-stage median filters, and outputting a median value of the values received by the second-stage median filter.
摘要:
A liquid crystal display device includes an array substrate having reflective and transmissive regions in a pixel region, wherein the array substrate includes a reflective electrode corresponding to the reflective region and a pixel electrode on a first substrate. A color filter substrate defines the reflective region and the transmissive region in the pixel region. The color filter substrate includes a color filter with first and second portions that correspond to the respective transmissive and reflective regions on a second substrate. The thickness of the second portion is less than a thickness of the first portion. The combined thickness of the scatter and the thickness of the second portion is greater than the thickness of the first portion; and a liquid crystal layer between the array and color filter substrates.
摘要:
A hydrogen charging apparatus having a cooling unit in which the hydrogen charging apparatus includes a hydrogen generation unit that generates hydrogen, a hydrogen charging unit that charges hydrogen to a hydrogen storage medium, and a cooling unit that reduces the pressure of hydrogen to a suitable level for charging by cooling the hydrogen storage medium during charging the hydrogen.
摘要:
Provided is a thin semiconductor package comprising a semiconductor chip and a lead frame, the lead frame including a paddle portion configured for mounting the semiconductor chip in a manner that exposes bonding pads within an aperture formed in a center portion of the lead frame and a peripheral terminal pad portion for establishing external contacts. A plurality of bonding wires are used to establish electrical connection between a lower surface of the paddle part and corresponding bonding pads with intermediate leads providing connection to the terminal pad portions. The semiconductor chip, lead frame and bonding wires may then be encapsulated to form a thin semiconductor package having a thickness substantially equal to that of the terminal pad portions. The thin semiconductor packages may, in turn, be used to form multi-chip stack packages using known good semiconductor chips to form a high-density compound semiconductor packages.
摘要:
A porous polyethylene hollow fiber membrane having a pore-size gradient across the inner and outer surfaces thereof is prepared by introducing, during the cooling step of a melt-spun polyethylene hollow fiber, a nitrogen flow and a solvent having a boiling point in the range of 30 to 80° C. to the inner and outer surfaces of the melt-spun hollow fiber, respectively.
摘要:
Disclosed is a wireless LAN system comprising: a memory; a central processing unit segmenting data, which is to be transferred, into frames, generating descriptors containing frame addresses and lengths in the memory, and storing the segmented frames and the descriptors into the memory in accordance with transmission priorities; a media accessing controller calling the frames of data, which is to be transferred, from the memory with reference to the transmission priorities and the descriptors, and temporarily storing the frames; and a transmitter transferring the frames stored in the media accessing controller. It is possible to improve data transmission speed and control facility, satisfying the quality of service for a standard of communication protocol.
摘要:
A multi-package module comprises a plurality of stacked packages including an upper package and a lower package. Each package comprises a board having located on a first side thereof a chip installation area and a bump pad area; at least one chip disposed in the chip installation area; a plurality of redistribution patterns formed on the board and electrically connected to the chip; and a plurality of first bump pads formed in the bump pad area which are electrically connected to the redistribution patterns. The respective packages are electrically connected by connecting bump pads of the upper package to bump pads of the lower package. Further, the chip installation area of the upper and lower packages not being in vertical alignment with each other.
摘要:
A stacked chip package with exposed lead-frame bottom surface is disclosed. The stacked chip package includes a first die encapsulated in an encapsulated molding compound, which is mounted on an active surface of a second die. A bottom surface of the second die is mounted to a top surface of a die supporting section of the lead-frame. The bottom surface of the die supporting section is exposed outside the encapsulated molding compound. A plurality of bonding wires electrically interconnect the die pads of the first die and the second die to the corresponding lead fingers. Moreover, each lead finger of the lead-frame is preferably formed with a deflected structure with a bent section, which enables the dimension size of the stacked chip package to get more compact.
摘要:
A structure and a method for depuncturing an input bit stream being input to a Viterbi decoder when the Viterbi decoder is designed by using a Radix-4 branch metric calculator in a method for designing the Viterbi decoder that decodes a punctured code at a high-speed, are disclosed. A depuncture structure for Radix-4 branch metric calculation in a high-speed Viterbi decoder includes four FIFOs, four multiplexers, and one Radix-4 branch metric calculator. Two input bit streams of I and Q are connected to two upper FIFOs and two lower FIFOs. An output terminal of FIFO is connected to upper and lower multiplexers of the next stage. One output terminal of each multiplexer is connected to Radix-4 branch metric calculator. As a result, Radix-4 branch metric calculation can be achieved by using the same clock as a clock speed of the input I and Q bit streams. This structure and this method can be applied to a depuncturing process for Radix-4 branch metric calculation of all punctured codes derived from ½ code.
摘要:
A method for forming wells of a semiconductor device, comprising the steps of forming a plurality of field insulating layers on a field region of a semiconductor substrate; forming first impurity regions of a first conductive type at a first depth beneath a surface of the semiconductor substrate; forming first impurity regions of a second conductive type beneath the surface of the semiconductor substrate at a second depth between the field insulating layers; selectively forming second impurity regions of the second conductive type in the first impurity regions of the first conductive type between adjacent field insulating layers; forming second impurity regions of the first conductive type in the first impurity regions of the second conductive type at both sides of the second impurity regions of the second conductive type; and diffusing the first and second impurity regions of the first conductive type and the first and second impurity regions of the second conductive type by a drive-in process to form a first conductive type shield region, a first conductive type well, and first and second wells of a second conductive type.