Abstract: A method for transmitting variable length packets based on FEC coding. Data packets are successively and contiguously stored in a two-dimensional storage device. FEC coding is performed to generate parity packets. The parity packets are stored in the two-dimensional storage device. The data packets, offsets representing positions of the data packets in the two-dimensional storage device, types of packets, and the parity packets are then transmitted.

Abstract: An electron gun is provided for a color CRT having a triode for emitting, controlling, and accelerating R, G, B beams, and main lens forming electrodes for focusing the R, G, B beams emitted from the triode onto a screen. The electron gun includes first dynamic quadrupole lens forming electrodes for providing a vertical focusing action and a horizontal focusing action to be applied to the R, G, B beams such that the vertical focusing action is different from the horizontal focusing action, and second dynamic quadrupole lens forming electrodes for providing horizontal/vertical focusing actions to be applied to the R, B beams, side beams, and horizontal/vertical focusing actions to be applied to the G beam, a center beam, the horizontal/vertical focusing actions to be applied to the R, B beams being different from the horizontal/vertical focusing actions to be applied to the G beam.

Abstract: The present invention relates to a nonflammable epoxy resin composition for using a thin copper film laminate, which is applied to a printed circuit board (PCB), and using the same.The present invention provides for nonflammable epoxy resin composition for using a thin copper film laminate, comprising bisphenol A-type epoxy resin, multifunctional epoxy resin, an imidazole-based curing catalyst, and a curing retarder, and using the same As described above, since the ring-open of the epoxy group is prompted by an imidazole catalyst, without the use of dicyandiamide, epoxy polymer reaction occurs due to the chain-reaction of epoxy group, and the glass-transition temperature is 170° C. or greater, the nonflammable epoxy resin composition for using a thin copper film of the present invention has a strong heat-resistance, lower dielectric constant, controllable gelation time, and does not require the use of non-harmful catalysts to the human body.

Abstract: A bubble-jet type ink-jet printhead, and a manufacturing method thereof are provided, wherein, the printhead includes a substrate integrally having an ink supply manifold, an ink chamber, and an ink channel, a nozzle plate having a nozzle, a heater consisting of resistive heating elements, and an electrode for applying current to the heater. In particular, the ink chamber is formed in a substantially hemispherical shape on a surface of the substrate, a manifold is formed from its bottom side toward the ink chamber, and the ink channel linking the manifold and the ink chamber is formed at the bottom of the ink chamber. Thus, this simplifies the manufacturing process and facilitates high integration and high volume production. Furthermore, a doughnut-shaped bubble is formed to eject ink in the printhead, thereby preventing a back flow of ink as well as formation of satellite droplets that may degrade image resolution.

Abstract: A bubble-jet type ink-jet printhead, a manufacturing method thereof and a method of ejecting ink, wherein, in the printhead, a manifold supplying ink, a hemispherical ink chamber, and an ink channel for connecting the manifold with the ink chamber are integrally formed on the substrate. A nozzle plate on the substrate having a nozzle, and a heater formed in an annular shape and centered around the nozzle are integrated without a complex process such as bonding. Thus, this simplifies the manufacturing process and facilitates high volume production. Furthermore, according to the ink ejection method, a doughnut-shaped bubble is formed to eject ink, thereby preventing a back flow of ink as well as formation of satellite droplets that may degrade image resolution.

Abstract: A bubble-jet type ink-jet printhead, and a manufacturing method thereof are provided, wherein, the printhead includes a substrate integrally having an ink supply manifold, an ink chamber, and an ink channel, a nozzle plate having a nozzle, a heater consisting of resistive heating elements, and an electrode for applying current to the heater. In particular, the ink chamber is formed in a substantially hemispherical shape on a surface of the substrate, a manifold is formed from its bottom side toward the ink chamber, and the ink channel linking the manifold and the ink chamber is formed at the bottom of the ink chamber. Thus, this simplifies the manufacturing process and facilitates high integration and high volume production. Furthermore, a doughnut-shaped bubble is formed to eject ink in the printhead, thereby preventing a back flow of ink as well as formation of satellite droplets that may degrade image resolution.

Abstract: A bubble-jet type inkjet printhead, a manufacturing method thereof and a method of ejecting ink, wherein, in the printhead, a manifold supplying ink, a hemispherical ink chamber, and an ink channel for connecting the manifold with the ink chamber are integrally formed on the substrate. A nozzle plate on the substrate having a nozzle, and a heater formed in an annular shape and centered around the nozzle are integrated without a complex process such as bonding. Thus, this simplifies the manufacturing process and facilitates high volume production. Furthermore, according to the ink ejection method, a doughnut-shaped bubble is formed to eject ink, thereby preventing a back flow of ink as well as formation of satellite droplets that may degrade image resolution.

Abstract: A microgyroscope with two resonant plates is provided. The microgyroscope includes a substrate; first and second frames provided on the substrate to have a predetermined height, the first and second frames facing each other; a plurality of anchors supporting the first and second frames with respect to the substrate; first and second resonant plates provided between the first and second frames to be separated from each other by a predetermined distance; and a matching link unit connected to the first and second resonant plates so that it links the motion of one resonant plate to the motion of the other resonant plate such that the matching link unit is moved by the motion of one resonant plate in a first direction and then moves the other resonant plate in a second direction opposite to the first direction.

Abstract: An object-based interactive multimedia contents authoring apparatus and method treats each body existing in video, audio and static images as one object to provide various editing/authoring functions for object-based interactive multimedia contents, to re-edit edited/authored results, and to execute interactive manipulation on an object basis to thereby edit user interactivity.

Abstract: A video encoding method and a computer-readable record media for performing the method are disclosed, in which in carrying out the video encoding, an intra updating technique is adopted by sorting out the blocks requiring an intra updating by utilizing the bit stream size information for each block, thereby maximizing the intra updating effect. The video encoding method includes the following steps. That is, at a first step, an encoding method for each frame of incoming images is selected, and the images are divided into blocks of a certain size. At a second step, either an intra coded block encoding or an inter coded block encoding is carried out depending on whether an encoding of a current frame and an inter coded encoding are needed or not, and whether an intra coded block is relevant or not. Further, blocks requiring an intra updating are sorted out by utilizing a bit stream size information for each block if the inter coded encoding is needed.

Abstract: In an apparatus and method for dispersively processing an IP packet forwarding for supporting a quality of service(QoS), an IP forwarding information base gotten by processing and extracting a routing protocol is dispersed to all input ports of a router on the basis of the QoS in a private network processor for performing a routing protocol process function, so as to dispersively process the IP packet forwarding.

Abstract: A method of fabricating a micro electromechanical system (MEMS) structure which can be vacuum-packaged at the wafer level is provided. The method includes the steps of forming a multilayered stack including a signal line on a first wafer; bonding a second wafer to the multilayered stack; polishing the first wafer to a predetermined thickness; forming a MEMS structure in a vacuum area of the first wafer and a pad outside the vacuum area, the MEMS structure and the pad being connected to the signal line; forming a structure in a third wafer to have space corresponding to the vacuum area of the MEMS structure; and bonding the third wafer to the polished surface of the first wafer in a vacuum state. For protection of the structure and maintaining a vacuum level required for operation, the fabricated structure is vacuum-packaged at the wafer level, thereby improving the yield of fabrication. In addition, since a special vacuum packaging process is not necessary, the fabrication can be simplified.

Abstract: Electron gun for a color CRT having main lens forming electrodes wherein a depth from a rim portion of an anode to an electrostatic field control electrode is deeper than the depth from the rim portion of a cathode to the electrostatic field control electrode, and a DQ lens action of a center beam portion formed by the DQ lens unit being weaker than the DQ lens action of an outer electron beam portion, whereby reducing a spot diameter by enlarging a main lens diameter and correcting inconsistency between a center beam and an outer beam in the DQ lens.

Abstract: There is provided an electron gun for a cathode-ray tube, comprising a triode having a control electrode and an accelerating electrode for controlling the amount of electron beams emitted from a plurality of cathodes and accelerating the electron beams, a front focusing lens part configured of a plurality of electrodes focusing and accelerating a predetermined amount of the electron beams, and a main lens part configured of a plurality of electrodes for focusing the electron beams on a screen, in which the diameter of beam passage hole of the accelerating electrode of the triode corresponds to 140-220% of that of the control electrode. The thickness of the control electrode corresponds to 20-30% of the diameter of beam passage hole of the control electrode, and the distance between the control electrode and the accelerating electrode corresponds to 40-80% of the beam passage hole diameter of the control electrode.

Abstract: A bubble-jet type ink-jet printhead, and a manufacturing method thereof are provided, wherein, the printhead includes a substrate integrally having an ink supply manifold, an ink chamber, and an ink channel, a nozzle plate having a nozzle, a heater consisting of resistive heating elements, and an electrode for applying current to the heater. In particular, the ink chamber is formed in a substantially hemispherical shape on a surface of the substrate, a manifold is formed from its bottom side toward the ink chamber, and the ink channel linking the manifold and the ink chamber is formed at the bottom of the ink chamber. Thus, this simplifies the manufacturing process and facilitates high integration and high volume production. Furthermore, a doughnut-shaped bubble is formed to eject ink in the printhead, thereby preventing a back flow of ink as well as formation of satellite droplets that may degrade image resolution.

Abstract: A bubble-jet type ink-jet printhead, a manufacturing method thereof and a method of ejecting ink, wherein, in the printhead, a manifold supplying ink, a hemispherical ink chamber, and an ink channel for connecting the manifold with the ink chamber are integrally formed on the substrate. A nozzle plate on the substrate having a nozzle, and a heater formed in an annular shape and centered around the nozzle are integrated without a complex process such as bonding. Thus, this simplifies the manufacturing process and facilitates high volume production. Furthermore, according to the ink ejection method, a doughnut-shaped bubble is formed to eject ink, thereby preventing a back flow of ink as well as formation of satellite droplets that may degrade image resolution.

Abstract: A monolithic nozzle assembly for fluid, and a method for manufacturing the same with a single mono-crystalline silicon wafer by continuous self-alignment are provided. The monolithic nozzle assembly can be formed with a single (100) monocrystalline silicon wafer. Compared with a complicated nozzle assembly formed using a great number of silicon wafers and plates, the configuration of the monolithic nozzle assembly is simple, and can be manufactured on a mass production scale by semiconductor manufacturing processes. The monolithic nozzle assembly can be manufactured by continuous self-alignment, including anisotropic etching using the characteristic of the crystal plane of silicon, and LOCOS-based masking. Compared with a common photolithography process, the alignment error may be reduced below a few microns. The overall manufacturing process is simple and efficient with a high yield.

Abstract: Focusing electrode in an electron gun for a color cathode ray tube, is disclosed, which can reduce a man-power and a number of components in a fabrication of the electron gun and can prevent a center electron beam from being elongated horizontally depending on a fitted depth of an inner guide electrode, the focusing electrode including a first focusing electrode adapted to be applied of a low static voltage and having a face with three vertically elongated electron beam pass-through holes of a key hole type and an inner guide electrode with three electron beam passthrough holes disposed at an inner side of the face, and a second focusing electrode adapted to be applied of a high dynamic voltage and having correcting electrodes unitary with a face of the second focusing electrode opposite to the first focusing electrode formed in a cathode direction at upper and lower sides of each of the three electron beam pass-through holes, whereby facilitating changes of center and side powers of the dynamic quadrupole le

Abstract: A focusing electrode in an electron gun for a color cathode ray tube comprises: a first focusing electrode including one end with vertical plate electrodes projected toward cathodes in three vertically elongated electron beam through holes, and an inner electrode having three electron beam through holes disposed therein, adapted to be applied of a static voltage; and a second focusing electrode including horizontal plate electrodes respectively formed at upper and lower sides of three electron beam through holes inserted into the vertically elongated electron beam through holes in the first focussing electrode, adapted to be applied of a dynamic voltage synchronous to a deflection of the electron beams, wherein a dynamic quadrupole lens is formed among the vertical plate electrodes, the horizontal plate electrodes, and the inner electrode when applying the dynamic voltage to the second focusing electrode, and the intensity of the dynamic quadrupole lens can be controlled by controlling the depth of the inner

Abstract: In a focusing electrode system in an electron gun for a color cathode ray tube, distortion of an electron beam, that takes place when horizontal and vertical diameters of a main focusing lens are different is corrected by adjusting power of a dynamic four polar lens. The system includes a first focusing electrode adapted to have applied a static voltage, and a second focusing electrode adapted to have applied a dynamic voltage synchronous to a deflection of electron beams. The second focusing electrode includes, one end having a burring part on a circumference of each of three electron beam pass-through holes at upper and lower portions thereof. A size of the burring part of the electron beam pass-through hole at a center thereof is different from a size of the burring part on each of the electron beam pass-through holes at outer portions thereof.