摘要:
A diversity antenna apparatus for a portable wireless terminal is provided with a main body having a main board installed therein and a folder electrically connected to the main board by a flexible printed data cable so as to be rotatably opened from and closed into the main body. The antenna apparatus includes a first antenna protruding from first side of an upper end of the main body so as to perform a transmitting and receiving function and a second antenna installed on a second side of an upper end of the main board and separated from the first antenna so as to perform a diversity receiving function. The diversity antenna is separated from the antenna apparatus by a sufficient distance, thereby improving a diversity effect. Further, the diversity antenna is installed within a space in the main body of the terminal, thereby not requiring a structural change and being easily installed in the portable wireless terminal.
摘要:
A median filter can provide easier implementation and a simplified change of the degree. The median filter comprises an input end, a plurality of median cells for storing one data, wherein each of the median cells is connected to the input end, an upstream median cell and a downstream median cell, and an output end for outputting the output of a median cell which is located in the middle of the plurality of the median cells as a middle value of data stored in the plurality of median cells, wherein the plurality of the median cells perform deleting the earliest data input via the input end among sorted and stored data, iterating an operation for storing in the data-deleted median cell the data stored in the downstream median cell thereof, up to the most downstream median cell, and resorting data received via the input end and the stored data in the manner that each median cell performs, in the case of receiving no data from the upstream median cell, comparing the stored data with the data received via the input end, selecting one of the two data according to the comparison result, outputting the stored data to the downstream median cell, and storing the data received via the input end when the selected data is the data received via the input end, and in the case of receiving data from the upstream median cell, outputting the stored data to the downstream median cell and storing the data applied from the upstream median cell.
摘要:
A built-in antenna device for an electronic device for communication is provided. The antenna device includes a substrate, an antenna radiator, and a transmission line. The substrate includes a grounding region and a non-grounding region. The antenna radiator is disposed in the non-grounding region of the substrate and fed from a feeding portion provided to the substrate. The transmission line branches from the antenna radiator and is disposed in vicinity of the grounding region to have a predetermined length and a predetermined width. The antenna device controls reactance by coupling the transmission line with the grounding region to allow the antenna radiator to operate in at least one desired band.
摘要:
The present invention relates to a ceramic filter comprising clay and a process for preparing the same. More specifically, the present invention relates to the ceramic filter, including wave-shaped ceramic paper and plate-shaped paper, having improved efficiency and performance that may optimize the process of coating and calcining inorganic binder by forming an outer wall thereon, using clay, and thus increase insulation effect and mechanical strength represented by the clay layer, and the process for preparing thereof.
摘要:
Disclosed herein is a humidifying medium which adopts a natural humidifying system and has excellent lifespan characteristics. The humidifying medium according to the present invention is formed by coupling a linerboard to one or both sides of a corrugated board. The corrugated board and the linerboard have different average pore diameters, and the humidifying medium of the present invention may be formed by coupling a linerboard having an average pore diameter of 35˜40 μm to one or both sides of a corrugated board having an average pore diameter of 8-10 μm.
摘要:
A tile using an activated carbon, which is excellent as a formaldehyde absorbent, and a preparation process thereof are disclosed. The effect of activated carbon on absorbing formaldehyde is maximized by the activated carbon-in-core structure, in which the problem of activated carbon that is easily oxidized during a heat treatment may be overcome.
摘要:
The present invention is a method and apparatus for cleaning a chemical vapor deposition (CVD) chamber using cleaning gas energized to a plasma in a gas mixing volume separated by an electrode from a reaction volume of the chamber. In one embodiment, a source of RF power is coupled to a lid of the chamber, while a switch is used to couple a showerhead to ground terminals or the source of RF power.
摘要:
An antenna apparatus for a mobile communication terminal to achieve better portability and to prevent damage from careless handling by a user. The antenna is installed inside a main body of the mobile terminal, to render more room for accommodating its components. The antenna apparatus includes the main body having therein a main board, a keypad assembly provided with a plurality of key tops formed exposedly on the upper surface of the main body, and an antenna section disposed, between the main board and the keypad assembly, opposite to and in the vicinity of the lower end of the main body. The antenna section is comprised of an antenna sheet disposed underneath the keypad assembly.
摘要:
Methods and apparatus for cleaning deposition chambers are presented. The cleaning methods include the use of a remote plasma source to generate reactive species from a cleaning gas to clean deposition chambers. A flow of helium or argon may be used during chamber cleaning. Radio frequency power may also be used in combination with a remote plasma source to clean deposition chambers.
摘要:
Disclosed is a ground connecting apparatus for a mobile terminal, in which grounds formed on the terminal are directly or indirectly connected so as to reduce an SAR value, thereby adjusting a connection length of the grounds. The ground connecting apparatus for a folder-type mobile terminal, which has a main body including a main body-side ground, a folder including a folder-side ground, a hinge unit and a hinge module, includes a hinge shaft connected to one end of the hinge module; a hinge contact means installed at a designated position on the first PCB so that the hinge contact means is connected to a first PCB-side ground connecting pad provided on the first PCB and adjusts an electrical connection length of the grounds; a pin connector installed at the other end of the hinge module; and a hinge connecting means installed at the pin connector so that the hinge connecting means is connected to a second PCB-side ground connecting pad provided on the second PCB and adjusts the electrical connection length of the grounds.