| Patent application number | Description | Published |
|---|
| 20090069053 | Apparatus for Using a Wireless Communication Base Station in Common - In the wireless communication base station sharing apparatus, a first signal combiner/distributor is connected to a main system duplexer through a first port, distributes a signal received through the first port to second and third ports, combines the signals received through the second and third ports according to the phases of the signals, and provides the combined signal through the first port or a fourth port. A second signal combiner/distributor is connected to a subsystem duplexer through a fifth port and the antenna through an eighth port, distributes a signal received through the fifth port to sixth and seventh ports, combines the signals received through the sixth and seventh ports according to the phases of the signals, and provides the combined signal through the fifth or eighth port. Variable filters are provided in signal paths between the first and second signal combiner/distributors. | 03-12-2009 |
| 20090141623 | Central Antenna Management System With Centralized Database - An antenna management system is disclosed for managing cellular communications network antennas remotely in response to traffic demands and environmental factors, including a packet switching network, antennas, base transceiver stations, tilt controllers, air interface modules, a management database, and a control network. In the exemplary embodiment, the system utilizes feedback from a variety of sensors including downtilt sensors, azimuth sensors, weather sensors, gas sensors, and a camera. The system enables data from the sensors to be viewed remotely and analyzed to determine if corrective adjustment of the antenna(s) is needed. After analyzing the data, the system or a user of the system such as a network operator can remotely adjust the antenna(s) to make necessary adjustment(s). The system further enables data received from the sensors to be made available over a packet switching network, such as the Internet or a local or wide area network, to any device, such as a computer or mobile station, connected to the packet switching network. | 06-04-2009 |
| 20090184155 | PCB Mounting Method - Provided is a method for mounting a Printed Circuit Board (PCB). The method includes providing a solder cream on a predetermined region of a bottom surface of the PCB except for a region requiring insulation, mounting the PCB on a mounting region of a housing on which the PCB is to be mounted, and fixedly coupling the PCB to the housing by melting and hardening the solder cream provided on the bottom surface of the PCB. | 07-23-2009 |
| 20090195329 | VARIABLE PHASE SHIFTER - Disclosed is a variable phase shifter The variable phase shifter includes a housing; a fixed board unit fixedly installed inside the housing, equipped with an input microstrip line with a via hole for receiving an input signal on one face thereof, and equipped with at least one circular arc-shaped output microstrip line outside the input microstrip line; and a rotating board unit rotatably installed inside the housing while being in contact with the one face of the fixed board unit, equipped with a transmission microstrip line on a face coming in contact with the one face of the fixed board unit, and for providing at least one output signal by making coupling even during rotation thereof. | 08-06-2009 |
| 20100019860 | Switchable Combiner/Divider With Multiple Inputs/Outputs - A switchable combiner/divider with multiple inputs/outputs is provided. The switchable combiner/divider with multiple inputs/outputs includes multiple input ports for receiving multiple incoming signals, multiple output ports, a switching part for alternately connecting the multiple input ports to output ports as a circulating configuration, and a controller for providing switching control signals to the switching part. | 01-28-2010 |
| 20100052824 | Radio Frequency Filter - A radio frequency filter comprising: housing body having input/output connectors and containing space which is divided into spaces by means of diaphragm; at least one resonator rod arranged in the housing; housing cover coupled to the housing body; wherein the housing body and the housing cover are coupled to each other by laser welding. The radio frequency filter according to the present invention can reduce PIMD due to reduce Contact Nonlinearity, and inhibit to erode away because the laser welding method dissolve different metallic materials each other and take a convalent bond, and reduce its manufacturing process time and cost because it is unnecessary drilling a hole and fastening a screw to fasten the housing and the housing cover each other and can simplify its manufacturing process and raise productivity because only irradiate laser beam on irradiated area of the housing cover. | 03-04-2010 |
| 20100074217 | Method and Apparatus for Managing Sector of Base Station in Mobile Telecommunication Systems - Disclosed is a method for operating sectors of a base station in a mobile telecommunication system. For this, the method includes the steps of: outputting, at a prescribed time period equal to T1, data, including alpha sector data, beta sector data, and gamma sector data, which is to be transmitted to a mobile station, in sequence and by sectors; dividing a frequency in a scheme of time division at a time period which equals either tα, tβ or tγ and which corresponds to the data length by the sector of data which is output in the outputting data, and carrying out a frequency assignment in sequence and by the sector. Accordingly, only relevant data is transmitted to a sector assigned the frequency, and a traffic variation of each sector can be met. | 03-25-2010 |
| 20100135192 | Array Antenna System in Base Station - An array antenna system in a BS, in which a horizontal-beam-radiation-pattern-forming module has a horizontal-beam-radiation-pattern-former to form a horizontal beam radiation pattern for transmission/reception signals, dividing signals received from input/output ports at one end, shifting the phases of the divided signals complementarily, combining the phase-shifted signals from the different input/output ports at the one end, outputting the combined signals to input/output ports at the other end, and outputting signals received from the input/output ports at the other end by a reverse operation to the input/output ports at the one end, receives/outputs a plurality of transmission/reception signals from/to a BTS via the input/output ports at the one end of the horizontal-beam-radiation-pattern-former, and receives/outputs a plurality of transmission/reception signals from/to a plurality of antennas via the input/output ports at the other end of the horizontal-beam-radiation-pattern-former, and a plurality of vertical-beam-radiation-pattern-forming modules are installed on an antenna basis to form a vertical beam radiation pattern for the transmission/reception signals, each for receiving a transmission signal from the horizontal-beam-radiation-pattern-forming module, dividing the transmission signal, providing the divided signal to antenna elements, filtering and amplifying signals received from the antenna elements according to a predetermined reception band, combining the amplified signals, and providing the combined signal to the horizontal-beam-radiation-pattern-forming module. | 06-03-2010 |
| 20100220470 | Lamp Device - There is provided a lamp device including a housing having a plurality of radiation fins for heat radiation on a top surface portion thereof, a Light Emitting Diode heat (LED) substrate having a plurality of LEDs for emitting illumination light, and a cover formed of a transparent or semi-transparent light-transmitting material and installed to be engaged with the housing under the LED substrate, for protecting the LED substrate. | 09-02-2010 |
| 20100231469 | Antenna Device for Mobile Communication System - An antenna device for a mobile communication system is provided, in which a post has a selected external appearance. An antenna end is formed at an upper portion of the post for installing antenna parts, and a support end is formed at a lower portion of the post for fixing the antenna device to the ground. At least part of an external body of the antenna end is formed of a material that transmits transmission and received radio signals and a ground support member is formed under the support end to make an external body of the support end stand erect on the ground. The external appearance of the antenna device may take the form of a conventional utility, lamp, or sign post or pole. | 09-16-2010 |
| 20100297937 | Mobile Communication Repeating Method in Moving Object and Repeater Thereof - A repeater installed in a moving object is provided, in which a link antenna module has a plurality of link antennas steered to predetermined directions, for wirelessly communicating with a Base Transceiver Station (BTS), a link antenna path setting module selects at least one of the plurality of link antennas of the link antenna module and connects a path between the selected link antenna and a rear end, a service antenna module has at least one service antenna installed within the moving object, for wirelessly communicating with Mobile Stations (MSs) within the moving object, a relay signal processing module is connected to the link antenna module through the link antenna path setting module and processes transmission and reception relay signals between the link antenna module and the service antenna module, a movement information module measures current movement information about the moving object and provides the current movement information, a received signal measuring module measures a received signal of the link antenna module and providing current propagation environment information, and an antenna control module detects a current movement state and a current propagation environment based on the information received from the received signal measuring module and the movement information module, stores and/or updates the information in an internal propagation environment information storage, and controls the link antenna path setting module to select a link antenna that receives the best signal from a serving BTS at each location according to the stored information. | 11-25-2010 |
| 20110069644 | Apparatus for Sharing a Wireless Communication Base Station - A wireless communication base station shares one antenna between a main system and a subsystem. A signal combiner/divider is connected to each of the transmission/reception signal lines of a main and a subsystem duplexer and combines signals according to their phases and divides other signals. A filter is provided in the signal paths between the combiners/dividers. | 03-24-2011 |
| 20110105060 | Radio frequency transmitter and signal amplification method therefor - A Radio Frequency (RF) transmitter and a signal amplification method therefor are provided, in which a signal source generates a signal of a predetermined Intermediate Frequency (IF) band, a local oscillator generates a signal of a predetermined high frequency band as a carrier signal, a power amplifier amplifies the signal received from the local oscillator to a predetermined transmission level, and a parametric mixer module receives the signals from the signal source and the power amplifier and outputs the received signals as a radio signal for transmission. The signal output from the parametric mixer module is transmitted as the radio signal without additional amplification. | 05-05-2011 |
| 20110127851 | Selecting Structure for Device - Disclosed is a device selection structure for selecting one or more devices, comprising: a plurality of devices each having an input port and an output port; and a device module including a movement plate installed movably in conjunction with the plurality of devices, an input connector, and an output connector, wherein the input and output ports of the plurality of devices and the input and output connectors of the device module are installed so that during movement of the movement plate, the input and output ports of the plurality of devices are sequentially connected, at predetermined positions, to the input and output connectors of the device module. | 06-02-2011 |
| 20110140803 | Radio Frequency Filter - A Radio Frequency (RF) filter configured by combining a hybrid coupler with a general filter, for having different characteristics from original characteristics of a general filter is provided, in which a coupler receives an input signal through a first port, divides the input signal, outputs the divided signals through second and third ports, combines signals received through the second and third ports according to phases of the signals, and outputs the combined signal through the first port or as an output signal of the RF filter through a fourth port, and a first filter unit has a first port connected to the second port of the coupler and a second port connected to the third port of the coupler, for having a predetermined frequency filtering characteristic. | 06-16-2011 |
| 20110141727 | LAMP FOR CAMERA-ATTACHABLE STREETLIGHT - A lamp for a camera-attachable streetlight is provided, which includes a camera-integrated bulb module. In the camera-integrated bulb module, there is a bulb portion, a camera module has a camera for capturing a predetermined area and a transceiver for transmitting data captured by the camera to an external server, a connector is inserted into a commercial socket, for receiving an external commercial power and has the same structure as a commercial connector inserted into a commercial socket, for receiving a commercial power, and a power distributor distributes the power received through the connector to the bulb portion and the camera module. | 06-16-2011 |
| 20110151932 | CONTROL SYSTEM FOR ANTENNA OF MOBILE COMMUNICATION BASE STATION AND IMAGE DATA OFFER SYSTEM AND METHOD TO USE THE CONTROL SYSTEM - A system for controlling a mobile communication antenna is provided, which includes a plurality of antenna systems each installed in a BS, and a remote control system for monitoring and controlling the plurality of antenna systems. In each of the antenna systems, an antenna module includes a radiation plate and a radiation device for transmitting and receiving radio signals for a mobile communication service, a sensor unit senses the inclination and horizontal rotation of the antenna module, a transceiver transmits data sensed by the sensor unit to the remote control system and receives a control signal from the remote control system, and a controller controls an operation of the antenna system according to the remote control signal received from the transceiver. In the remote control system, a BS monitoring information DB server accumulates the sensed data received from the plurality of antenna systems on a BS basis and an antenna system basis, and a remote control center outputs control signals to the antenna systems to monitor the antenna systems remotely. | 06-23-2011 |
