Abstract: The present invention discloses a built-in type outdoor unit for an air conditioner including: a louver frame being fixedly installed on a rectangular space inner wall formed on an outer wall of a building, being divided into a suction area and a discharge area, including a plurality of louver blades in each area, and sucking and discharging air through gaps between the louver blades; an outdoor unit casing being formed in a rectangular parallelepiped shape, being fixedly installed on the inside bottom of the building to contact with the louver frame, and having its one surface facing the suction area and the discharge area of the louver frame opened and the other surfaces closed; and means installed on at least one of the facing surfaces of the louver frame and the outdoor unit casing, for preventing external leakage of air between the louver frame and the outdoor unit casing.

Abstract: The present invention relates to a front suction/discharge type outdoor unit for an air conditioner which can solve problems due to increased capacity and decreased suction air.

Abstract: The present invention relates to a front suction/discharge type outdoor unit for an air conditioner to provide an economical installation structure for efficiently installing a large capacity outdoor unit and provide services for easily transferring the outdoor unit, and examining, exchanging and repairing its components, by separating a suction casing and a discharge casing. The front suction/discharge type outdoor unit includes an outdoor unit suction casing having its one surface externally opened, and sucking external air for heat exchange, and an outdoor unit discharge casing being separated from or coupled to the outdoor unit suction casing, sucking external air through the outdoor unit suction casing, having its one surface externally opened, and discharging heat exchanged external air. Here, opened surfaces are respectively formed in the outdoor unit suction casing and the outdoor unit discharge casing to connect them to discharge the sucked external air.

Abstract: The present invention discloses a built-in type outdoor unit for an air conditioner to provide an efficient installation structure for installing the outdoor unit increased in capacity due to high air conditioning capacity in a built-in type. The built-in type outdoor unit includes a louver frame being fixedly installed on a rectangular space inner wall formed on an outer wall of a building, being divided into a suction area and a discharge area, having a plurality of louver blades in each area, and sucking and discharging air through gaps between the louver blades, and an outdoor unit casing being fixedly installed on the inside bottom of the building to contact the louver frame, and having its one surface facing the suction area and the discharge area of the louver frame opened and the other surfaces closed.

Abstract: A semiconductor laser diode and a manufacturing for fabricating the same are provided. The semiconductor laser diode includes a substrate, masks that are formed at both sides of the substrate, a light generating layer that is formed on the substrate between the masks, current blocking layers that are formed on the masks, respectively, and first and second electrode that are formed on the bottom surface of the substrate and on the top surface of the light generating layer, respectively. The optical generating layer and the current blocking layer are simultaneously formed through single growth, and the current blocking layer confines current and light in a lateral direction in the light generating layer. Thus, a semiconductor laser diode manufacturing process can be simplified, and threshold current for laser oscillation can be lowered.

Abstract: A method and an apparatus for carrying out a turbo decoding by utilizing the channel information are disclosed. When using a turbo-decoder in a wireless communication system, in order to reduce the decoding delay, the channels are estimated by using the information such as a pilot channel information or a pilot symbol information, and the number of iterative decoding is controlled by utilizing the signal-to-interference ratio (SIR), thereby shortening the decoding delay, and making the quality of the high speed multi-media service better and reliable. The turbo code decoding apparatus utilizing a channel information according to the present invention includes a channel estimator for estimating a channel status based on reception signals to measure a SIR. Further, an iterative decoding times controller controls the number of iterative decoding by comparing the SIR with a pre-set threshold value.

Abstract: A method and an apparatus for carrying out a turbo decoding by utilizing the channel information are disclosed. When using a turbo-decoder in a wireless communication system, in order to reduce the decoding delay, the channels are estimated by using the information such as a pilot channel information or a pilot symbol information, and the number of iterative decoding is controlled by utilizing the signal-to-interference ratio (SIR), thereby shortening the decoding delay, and making the quality of the high speed multi-media service better and reliable. The turbo code decoding apparatus utilizing a channel information according to the present invention includes a channel estimator for estimating a channel status based on reception signals to measure a SIR. Further, an iterative decoding times controller controls the number of iterative decoding by comparing the SIR with a pre-set threshold value.

Abstract: A direct memory access processing device of communication equipment which has a main memory device and communication equipment including queues storing information related to communications between processs and management tables storing physical addresses in the main memory device allotted to the process, and when information to be managed by a destination process is externally transferred to the communication equipment, retrieves information about the destination process stored in the queues from the management tables, thereby storing the received information in the addresses of the main memory device via a direct memory access, the main memory device comprising an area allotted to a process for the immediate use, and a daemon process wholly responsible for managing the area, and the management table comprising a process record for managing the address of the area allotted in the main memory device for the immediate use.

Abstract: The present invention relates to a method for preparing safe electronic notarized documents in electronic commerce which provide a safe notarization for a transaction between a customer and a merchant. The method includes steps of a notarizing organization transmitting an electronic notarized document with a digital signature to a customer/merchant, the customer/merchant decoding the electronic notarized document and transmitting the electronic notarized document with digital signature to the notarizing organization, the notarizing organization decoding the electronic notarized document and comparing the decoded electronic notarized document with the electronic notarized document without any digital signatures so as to obtain a message digest of the notarized document and to send the electronic notarized document with digital signature to the customer/merchant, and the customer/merchant storing the electronic notarized document.

Abstract: A multiroom airconditioner includes a plurality of indoor units, each of them having an indoor heat exchanger, an outdoor unit having an outdoor heat exchanger and a device for equalizing the pressure of the refrigerant flowing from the indoor units to the outdoor unit, wherein the outdoor heat exchanger is divided into an identical number of sections as that of the indoor heat exchanger, each of the sections being connected to each of the indoor units in one to one basis.