| ELECTRONICS AND TELECOMUNICATIONS RESEARCH INSTITUTE Patent applications |
| Patent application number | Title | Published |
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| 20120112925 | APPARATUS AND METHOD FOR MONITORING STATUS OF SATELLITE TRANSPONDER USING STATISTICAL ANALYSIS OF TELEMETRY DATA - Provided are an apparatus and a method for monitoring a status of a satellite transponder using a statistical analysis of telemetry data, which may disclose a configuration to receive at least one of an input signal level and an output signal level with respect to a satellite transponder, to receive telemetry data with respect to the satellite transponder, and to statistically analyze the telemetry data based on the at least one of the input signal level and the output signal level. | 05-10-2012 |
| 20100260144 | METHOD AND APPARATUS FOR THE HANDOVER - Consistent handover can be provided between a plurality of objects by providing handover mode control information defining an object for initiating handover from among at least one object in a system environment including the at least one object, wherein the at least one object is able to initiate handover between heterogeneous networks. | 10-14-2010 |
| 20100159939 | BIT CALCULATION METHOD AND APPARATUS FOR PDSCH TRANSMISSION - Provided is a bit calculation method, which accurately and easily calculates how many bits are transmitted by codeword per PDSCH in advance before a modulator performs modulation by TTI unit on a PCH or a DL-SCH transferred by a TrCH encoder, in a base-station modulator applied to an LTE-advanced system. Accordingly, the bit calculation method enables smooth data transmission, and easily checks data transmission error. | 06-24-2010 |
| 20100157982 | TRANSMITTER AND METHOD FOR TRANSMITTING AND RECEIVING OF VOICE DATA FOR VOIP SERVICE - Provided are a transmitting apparatus and voice data transmitting and receiving methods for providing VoIP services. When a call is started and an analog signal including a voice signal is input, the transmitting apparatus divides the analog signal into a plurality of voice data packets for transmission. Here, the plurality of voice data packets are generated by sampling with different phases in the same frequency. In addition, the transmitting apparatus inserts a time indication bit that is changed every transmission period into each of the voice data packets and transmits the voice data packets, and distinguishes voice data corresponding to a current transmission period based on the time indication bit. | 06-24-2010 |
| 20100136939 | GAIN CONTROL APPARATUS AND METHOD IN RECEIVER OF MULTIBAND OFDM SYSTEM - A gain control apparatus in a receiver of multiband OFDM system includes: an amplifier amplifying a received signal based on a first auto gain control signal; an analog-to-digital converter for converting the amplified signal into a digital signal; band reception signal extractor for extracting a signal of a desired reception band from the converted digital signal for each reception band, and controlling gain of the extracted signal according to a second auto gain control signal; a reception power detector for detecting a reception power value of whole band from the converted digital signal; and a multiband integration baseband processor for generating the first auto gain control signal by using the detected reception power value of the whole band, and generating the second auto gain control signal to be provided to the band reception signal extraction units, resource allocation information for each band and a reception power for each reception band. | 06-03-2010 |
| 20100133585 | GROWTH OF GERMANIUM EPITAXIAL THIN FILM WITH NEGATIVE PHOTOCONDUCTANCE CHARACTERISTICS AND PHOTODIODE USING THE SAME - A method of growing a germanium (Ge) epitaxial thin film having negative photoconductance characteristics and a photodiode using the same are provided. The method of growing the germanium (Ge) epitaxial thin film includes growing a germanium (Ge) thin film on a silicon substrate at a low temperature, raising the temperature to grow the germanium (Ge) thin film, and growing the germanium (Ge) thin film at a high temperature, wherein each stage of growth is performed using reduced pressure chemical vapor deposition (RPCVD). The three-stage growth method enables formation of a germanium (Ge) epitaxial thin film characterized by alleviated stress on a substrate, a lowered penetrating dislocation density, and reduced surface roughness. | 06-03-2010 |
| 20100132467 | HIGH-SENSITIVITY Z-AXIS VIBRATION SENSOR AND METHOD OF FABRICATING THE SAME - Provided is a high-sensitivity MEMS-type z-axis vibration sensor, which may sense z-axis vibration by differentially shifting an electric capacitance between a doped upper silicon layer and an upper electrode from positive to negative or vice versa when center mass of a doped polysilicon layer is moved due to z-axis vibration. Particularly, since a part of the doped upper silicon layer is additionally connected to the center mass of the doped polysilicon layer, and thus an error made by the center mass of the doped polysilicon layer is minimized, it may sensitively respond to weak vibration of low frequency such as seismic waves. Accordingly, since the high-sensitivity MEMS-type z-axis vibration sensor sensitively responds to a small amount of vibration in a low frequency band, it can be applied to a seismograph sensing seismic waves of low frequency which have a very small amount of vibration and a low vibration speed. Moreover, since the high-sensitivity MEMS-type z-axis vibration sensor has a higher vibration sensibility than MEMS-type z-axis vibration sensor of the same size, it can be useful in electronic devices which are gradually decreasing in size. | 06-03-2010 |
| 20100118804 | WIRELESS PACKET COMMUNICATION SYSTEM AND RESOURCE SCHEDULING METHOD THEREOF - According to the present invention, a wireless packet communication system having a protocol structure that can improve radio resource efficiency while reducing the amount of control information in packet transmission for radio resource allocation to a mobile station, and a radio resource allocation method of the system, is provided. | 05-13-2010 |
| 20100110162 | METHOD AND APPARATUS FOR PROVIDING 3D STILL IMAGE SERVICE OVER DIGITAL BROADCASTING - A method and apparatus for providing 3D still image service in a specific time interval during audio-visual service of digital broadcast are provided. The method includes receiving a reference image and a 3D supplement image, which construct a 3D still image, through a data channel or a video channel together with a 2D image; restoring the reference image and the 3D supplement image to the 3D still image; and displaying the 3D still image in a specific interval during digital audio-visual broadcast using the 2D image according to display information which includes a play time and a play mode. | 05-06-2010 |
| 20100052955 | TABLE GENERATION METHOD FOR DECODING VARIABLE-LENGTH CODES - Provided is a table generation method of decoding a variable-length code. The table generation method includes receiving a variable-length code table and a search width N, generating a K-ary tree from the variable-length code table and the search width N, and generating an N-bit code table from the K-ary tree. | 03-04-2010 |
| 20100043052 | APPARATUS AND METHOD FOR SECURITY MANAGEMENT OF USER TERMINAL - The present invention relates to an apparatus and method for security management of a user terminal. The present invention generates security policies for the user terminal through an external security management server based on context information for the user terminal. At this time, the present invention receives the generated security policy information and sets internal security policies for the user terminal. The present invention can overcome a limitation of the user terminal as the security policies for the user terminal, particularly, the complex terminal is set by using various interfaces and provide systematic and supplemental security services. | 02-18-2010 |
| 20090211630 | DYE-SENSITIZED SOLAR CELL AND METHOD OF MANUFACTURING THE SAME - Provided are a dye-sensitized solar cell and a method of manufacturing the same. The dye-sensitized solar cell includes a semiconductor electrode and a counter electrode that face each other, and an electrolytic solution interposed therebetween, wherein the semiconductor electrode includes: a conductive substrate; an oxide semiconductor-conductor structure formed on the conductive substrate; and dye molecules layer adsorbed onto the surface of the oxide semiconductor. A dye-sensitized solar cell manufactured using the method can effectively prevent electrons transferred to the conductor and an electrolyte from recombining, thus having maximal photoelectron conversion efficiency. | 08-27-2009 |
