Abstract: An outdoor unit for an air conditioner is provided, which includes a case, a plurality of path portions separated from each other in the case and having a same discharge port, electronic units arranged on the plurality of path portions, and an air circulator arranged on the discharge port of the plurality of path portions to compulsorily circulate air in the case to an outside of the case through the plurality of path portions of the case.

Abstract: An outdoor unit for an air conditioner is provided, which includes a case, a plurality of path portions separated from each other in the case and having a same discharge port, electronic units arranged on the plurality of path portions, and an air circulator arranged on the discharge port of the plurality of path portions to compulsorily circulate air in the case to an outside of the case through the plurality of path portions of the case.

Abstract: A speaker design technology acquires a coaxial effect of an output sound by placing a high-frequency speaker for outputting a high-pitched sound apart from a low-frequency speaker for outputting a low-pitched sound by a predetermined distance and mechanically arranging output points of the high-frequency speaker and the low-frequency speaker in alignment with each other. The speaker design technology lets vibration of a low-frequency speaker to avoid interference by the high-frequency speaker and also lets the high-frequency speaker to avoid interference by the vibration of the low-frequency speaker by arranging the high-frequency speaker in front of a dust cap necessarily installed in the center of the low-frequency speaker. Since the high-frequency speaker and the low-frequency speaker are spaced apart from each other so as to independently operate, any interface is not required for enabling the high-frequency and the low-frequency speakers to interwork with each other.

Abstract: A speaker design technology acquires a coaxial effect of an output sound by placing a high-frequency speaker for outputting a high-pitched sound apart from a low-frequency speaker for outputting a low-pitched sound by a predetermined distance and mechanically arranging output points of the high-frequency speaker and the low-frequency speaker in alignment with each other. The speaker design technology lets vibration of a low-frequency speaker to avoid interference by the high-frequency speaker and also lets the high-frequency speaker to avoid interference by the vibration of the low-frequency speaker by arranging the high-frequency speaker in front of a dust cap necessarily installed in the center of the low-frequency speaker. Since the high-frequency speaker and the low-frequency speaker are spaced apart from each other so as to independently operate, any interface is not required for enabling the high-frequency and the low-frequency speakers to interwork with each other.

Abstract: The present invention relates to a digital contents generation and restoration technology. More particularly, the present invention relates to a method for generating and restoring digital contents, which prints numerical values constituting a digital contents file or a data image composed of various colors of dots mapped with data values of a digital contents file on a printable medium and restores the original contents file using the image including the numerical values printed on the printable medium or the various colors of dots.

Abstract: A system using a packet network in a mobile communication system is provided, in which a home BTS provides a mobile communication service to an MS using a packet network as a backhaul network, a home BTS manager provides information necessary for providing the mobile communication services to the home BTS and manages the home BTS, a security gateway resides between the home BTS and upper network elements and protects a network of the mobile communication system against the packet network, a WSS performs a call control and mobility control function for the MS through the home BTS, and a WGW transcodes voice data transmitted from the MS via the home BTS.

Abstract: A method and an apparatus for tracking a location of a UE by using an integrated GPS and TDOA scheme in a mobile communication network are provided. A GPS position solution of the UE is obtained using GPS code information. TDOA position solutions are obtained using pilot signal transmission times of BSs and pilot signal reception times of the UE, and an average value of the TDOA position solutions is calculated. The GPS position solution is subtracted from the average to obtain a position error value, and an iterative method using a least square method is performed for the position error value to correct the position error. The corrected position error value is added to the average value of the TDOA position solutions to obtain a more precise position solution.

Abstract: A system using a packet network in a mobile communication system is provided, in which a home BTS provides a mobile communication service to an MS using a packet network as a backhaul network, a home BTS manager provides information necessary for providing the mobile communication services to the home BTS and manages the home BTS, a security gateway resides between the home BTS and upper network elements and protects a network of the mobile communication system against the packet network, a WSS performs a call control and mobility control function for the MS through the home BTS, and a WGW transcodes voice data transmitted from the MS via the home BTS.

Abstract: A method and an apparatus for tracking a location of a UE by using an integrated GPS and TDOA scheme in a mobile communication network are provided. A GPS position solution of the UE is obtained using GPS code information. TDOA position solutions are obtained using pilot signal transmission times of BSs and pilot signal reception times of the UE, and an average value of the TDOA position solutions is calculated. The GPS position solution is subtracted from the average to obtain a position error value, and an iterative method using a least square method is performed for the position error value to correct the position error. The corrected position error value is added to the average value of the TDOA position solutions to obtain a more precise position solution.

Abstract: An ATM traffic control apparatus and method for adaptively controlling ATM traffics.