| Patent Number |
Title Of Patent |
Date Issued |
| 7400222 |
Grooved coaxial-type transmission line, manufacturing method and packaging method thereof |
July 15, 2008 |
| Disclosed herein are a transmission line of coaxial type and a manufacturing method thereof, capable of preventing a radiative signal loss of signal lines during transmission of an RF signal and removing signal interference between adjacent signal lines, thus allowing signal lines to |
| 7118810 |
Organic/polymer electroluminescent devices employing single-ion conductors |
October 10, 2006 |
| The present invention relates to electroluminescent devices employing single-ion conductors as the materials for an electron- or hole-injecting layer. Preferred electroluminescent devices employ an electron- or hole-injecting layer made of single-ion conductors in a conventional elec |
| 7106974 |
Low-cost WDM source with an incoherent light injected fabry-perot laser diode |
September 12, 2006 |
| The present invention discloses a low-cost light source for optical transmission systems and optical networks based on wavelength-division multiplexing (WDM) technology. A light source in accordance with the present invention is implemented by externally injecting a narrow-band incoh |
| 7072891 |
Apparatus and method for hyper-rectangle based multidimensional data segmentation and clustering |
July 4, 2006 |
| An apparatus and method for performing similarity searches using hyper-rectangle based multidimensional data segmentation partitions a data set representable by a multidimensional data sequence, such as a video stream, into segments in consideration of the temporal relationship betwe |
| 7068949 |
Multi-wavelength locking method and apparatus for wavelength division multiplexing (WDM) optical |
June 27, 2006 |
| Disclosed is a multi-wavelength locking method for a wavelength division multiplexing (WDM) optical communication network, and in particular, a multi-wavelength locking method and apparatus for a WDM optical communication system that can lock wavelengths of optical signals by produci |
| 6999653 |
4-port wavelength selective router |
February 14, 2006 |
| The present invention relates to a 4-port wavelength selective router and the add/drop multiplexer using the above router. More particularly, it relates to a 4-port wavelength selective router that can effectively routes counter-propagating signals while suppressing multiple reflections |
| 6990078 |
Method for controlling the target bit error rate of each packet in wired and wireless video comm |
January 24, 2006 |
| A method of controlling the bit error rate of packets in a wired or wireless communication system controls differently the target bit error rate (BER) of a video packet depending on the state of importance after determining importance of the video information in the video packet by m |
| 6963872 |
Adaptive lock escalation based on the concept of unescalatable locks |
November 8, 2005 |
| In this invention, we propose an adaptive lock escalation scheme that can significantly enhance the performance of the database management system under excessive lock requests. In existing lock escalation methods, under excessive lock requests, the system's performance degrades abruptly |
| 6952308 |
Multi-stage bidirectional optical amplifier |
October 4, 2005 |
| A multi-stage bidirectional optical amplifier amplifies counter-propagating signals at the same time, and includes two single-stage bidirectional optical amplifiers, two multiple reflection suppression means, and a mid-stage component. |
| 6947891 |
Efficient speech recognition system bases on an auditory model |
September 20, 2005 |
| A speech recognition system that is insensitive to external noise and applicable to actual life includes an A/D converter that converts analog voice signals to digital signals. An FIR filtering section employs powers-of-two conversion to filter the digital signals converted at the A/ |
| 6940520 |
Anisotropic texture filtering method and apparatus using area coverage weight of sub-texel preci |
September 6, 2005 |
| An anisotropic texture filtering method using area coverage weight of sub-texel precision includes the steps of executing filtering by applying weights to texels; representing four sides of the footprint by four linear equations for computing area coverage weight; obtaining sub-texel mas |
| 6940062 |
Optical fiber curvature sensor for measuring body motion and its adhesive method |
September 6, 2005 |
| An adhesive method for an optical fiber curvature sensor results in a sensor having improved sensitivity for measuring body motions such as motions of fingers, arms, or legs, and in particular that is capable of measuring both a curving direction and degree of curvature of a subject |
| 6937908 |
Method for tuning PID controllers applicable to nonlinear systems |
August 30, 2005 |
| A method for tuning a PID controller includes the steps of inducing equivalent relationships between PID gains of the PID controller and parameters of time delay control (TDC), selecting a natural frequency vector and a damping ratio vector so as to acquire a desired error dynamics o |
| 6922728 |
Optimal internet network connecting and roaming system and method adapted for user moving outdoo |
July 26, 2005 |
| The present invention relates to an internet network connecting and roaming system and method providing internet communication service to a data communication carried by a user moving indoors or outdoors. In the present invention, the user is provided with a communication service by conn |
| 6778981 |
Apparatus and method for similarity searches using hyper-rectangle based multidimensional data s |
August 17, 2004 |
| Disclosed herein is an apparatus and method for similarity searches using hyper-rectangle based multidimensional data segmentation. The similarity search apparatus has MBR generation means, first sequence pruning means, second sequence pruning means, and subsequence finding means. The MB |
| 6759672 |
System for and method of reading out storage phosphor screen using pulsed semiconductor light so |
July 6, 2004 |
| A system for and method of reading out a storage phosphor screen (or a storage phosphor sheet or an imaging plate) sensitive to radiation is used to perform radiography by optically stimulating the storage phosphor screen to induce luminescence and acquire a digital image of a subject. A |
| 6735391 |
Automatic retrieval of wavelength-division multiplexed ring networks |
May 11, 2004 |
| The present invention relates to an automatic retrieval method of a wavelength-division multiplexed (WDM) ring network to the normal state after recovery of a failure. More specifically, the present invention relates to an automatic retrieval method of a WDM ring network to the norma |
| 6727642 |
Flat field emitter displays |
April 27, 2004 |
| Disclosed are flat panel field emitter displays whose unit cell structure adopt a planar cathode structure in stead of a conventional microtip structure, so as to increase the degree of integration and can be operated at low operation voltages at high speeds. In the structure, a channel |
| 6684942 |
Heat sink |
February 3, 2004 |
| A heat sink is provided with a box-like body attached to heat dissipating surface of a heat-dissipating element. A separation board separates the box-like body into upper and lower parts. A number of side separation boards divide the lower part into several areas, and nozzle parts are |
| 6671045 |
Apparatus and method for measuring optical signal-to-noise ratio |
December 30, 2003 |
| An apparatus and method for measuring optical signal-to-noise ratio in optical communications includes (1) a variable optical band-pass filter (VOBPF) that passes the amplified output beam when the beam wavelength is the same as the passing wavelength of the VOBPF; (2) a 1.times.4 beam |
| 6576216 |
Method of manufacturing lithium-manganese oxide for use in lithium secondary battery |
June 10, 2003 |
| A method for manufacturing lithium-manganese oxide powders for use in a lithium secondary battery is provided. The method includes the steps of dissolving in nitric acid a composition selected from the group consisting of: manganese oxide, manganese carbonate, or manganese to form a mang |
| 6547838 |
Sulfuric positive electrode for use in lithium secondary battery and method for manufacturing th |
April 15, 2003 |
| A sulfuric positive electrode for use in a lithium secondary battery whose life cycle is enhanced and a method for manufacturing the same are provided, in which nickel is added in sulfur that is an active material of a positive electrode. The sulfuric positive electrode manufactured by |
| 6545936 |
Pipeline structure of memory for high-fast row-cycle |
April 8, 2003 |
| The present invention relates to a DRAM structure for reducing row latency for an irregular row access and for improving the effective bandwidth by varying a DRAM cell core structure, specifically, to a pipeline structure of a memory for a fast row cycle, which is different from a struct |
| 6528993 |
Magneto-optical microscope magnetometer |
March 4, 2003 |
| A magneto-optical microscope magnetometer capable of simultaneously measuring a hysteresis loop and activation magnetic moment of a submicrometer-scale local area (about 0.3.times.0.3 .mu.m). An electromagnet capable of applying a magnetic field to a magnetic material is attached to |
| 6526037 |
Method for allocating signature sequence in CDMA system |
February 25, 2003 |
| A method for allocating signature sequence used to distinguish my own signal from the other user's signals in a code division multiple access system comprising the steps of obtaining and selecting a Park-Song sequence based upon a specific equations; allocating the selected Park-Song |
| 6523053 |
Method and apparatus for dividing long polynomial expression in finite field |
February 18, 2003 |
| A method and apparatus for dividing a long polynomial expression in a finite field. Elements in a dividend polynomial are grouped into a plurality of groups and combined according to a superposition of the finite field. Then, a group-based parallel processing operation is performed w |
| 6496817 |
Subsequence matching method using duality in constructing windows in time-series databases |
December 17, 2002 |
| A subsequence matching method in time-series databases, reduces the number of points stored in the multidimensional index and can store individual points directly in the index by dividing the data sequence into disjoint windows using duality in constructing windows. The method reduces fa |
| 6462614 |
Electrothermal integrator and audio frequency filter |
October 8, 2002 |
| An electrothermal integrator and audio frequency filter utilizing an electrothermal structure fabricated by way of a micro-machining process. An electrothermal structure is a structure in which there is thermal interaction between its electrical components. It is possible to implement |
| 6461984 |
Semiconductor device using N2O plasma oxide and a method of fabricating the same |
October 8, 2002 |
| The present invention provides a highly reliable polycrystal silicon thin film transistor with N.sub.2 O plasma oxide having an excellent leakage current characteristics comparable to the thermal oxide film formed on the crystalline silicon.Also, the present invention provides a method o |
| 6384507 |
Coreless AC induction motor |
May 7, 2002 |
| Disclosed herein is a coreless AC Induction motor. The motor comprises a cup type coreless rotor. A rotating shaft is combined with the cup type coreless rotor. An induction rod is inserted into the cup type coreless rotor to guide a magnetic flux from the stator effectively. A stator is |
| 6349308 |
Inverted index storage structure using subindexes and large objects for tight coupling of inform |
February 19, 2002 |
| This invention relates to an inverted index storage structure that indexes keyword inputs into the storage space for the corresponding posting lists. In particular, the invention relates to the index structure that enables fast retrieval of the posting of the specific document from the p |
| 6285866 |
Single-chip radio structure with piezoelectric crystal device integrated on monolithic integrate |
September 4, 2001 |
| A single-chip radio structure with a piezoelectric crystal device integrated on a monolithic integrated circuit and a method of fabricating the same. A thin or thick piezoelectric crystal wafer is bonded on a silicon substrate and adjusted in thickness by mechanical grinding and poli |
| 6136739 |
High dielectric ceramic capacitor composition |
October 24, 2000 |
| There is disclosed a high dielectric ceramic composition for capacitors, which comprises (1-x)Pb(Fe.sub.1/2 Ta.sub.1/2)O.sub.3 xPb(Fe.sub.1/2 Nb.sub.1/2)O.sub.3 wherein 0.35.ltoreq.x.ltoreq.0.65, and 0.01-0.5 % by weight of manganese, chromium or cobalt. The composition can be sintered |
| 6126770 |
Method for fabricating a spindle or roller employing a composite material |
October 3, 2000 |
| The present invention provides a method for fabricating spindle and roller empying rotation axes made of a composite material, which comprises a step of inserting a front metal part and an end metal part into a front and an end of a rotation axis made of a composite material. In accordan |
| 5982009 |
Integrated device of cantilever and light source |
November 9, 1999 |
| An integrated device having a configuration, in which a cantilever and a light source are integrated on a single substrate, and applicable to a variety of fields, for example, ultra-fine quantity sensors, and a method for fabricating such a device. The light source such as LED, LD or SEL |
| 5978256 |
Non-volatile memory device using AFM and method for operating the device |
November 2, 1999 |
| A non-volatile memory device including a silicon oxide film formed to a desired thickness over a silicon substrate, and a plurality of nano crystals formed in the silicon oxide film by a conductive material implanted in the silicon oxide film. The invention also provides a data stori |
| 5789837 |
High-temperature superconducting magnetic bearing |
August 4, 1998 |
| A passive magnetic bearing structure for radially supporting a rotor with respect to a stator is provided, in which a magnetic circuit is mounted on the rotor or stator for generating two strongly different axial magnetic fields in two concentric angular gaps coaxial to the rotation axis |
| 5766907 |
Method for immobilization of whole microbial cells in calcium alginate capsules |
June 16, 1998 |
| A method is provided for immobilization of whole microbial cells containing enzymes in Ca-alginate capsules. Whole microbial cells are mixed with a CaCl.sub.2 solution, a small amount of xanthan gum is added, the resultant mixture is added drop-wise while stirring to a Na-alginate soluti |
| 5484861 |
Biodegradable copolyester and method for preparing the same |
January 16, 1996 |
| There is disclosed a biodegradable copolyester having a combination structure consisting of one or more repeating unit of alkyleneterephthalate and one or more repeating unit of hydroxyalkanoate, represented by the following general formula I: ##STR1## wherein n is an integer not |
| 5177012 |
Biosensor containing immobilized Zymomonas mobilis cells for measuring glucose, fructose and suc |
January 5, 1993 |
| A biosensor for the determination of glucose and fructose concentrations is provided. The biosensor is produced by a method which comprises treating Zymomonas mobilis whole cells with an organic solvent such as xylene and n-butanol, immobilizing the treated whole cells onto a support sel |
| 5075446 |
Synthesis of tetrahydro-2-furylated pyrimidine derivatives |
December 24, 1991 |
| The synthesis of 1-(tetrahydro-2-furyl) pyrimidine derivatives in good yields by the reaction of trimethylsilylated pyrimidine bases with 2-acetoxytetrahydrofuran using a catalytic amount of cesium chloride in acetonitrile under mild conditions is described. |
| 5040486 |
Symbiotic production method for microalgae and fishes |
August 20, 1991 |
| A method for producing biomass of microalgae and fishes economically by establishing a symbiotic relation between the above two organisms in a culture pond exposed to sunlight or artificial illumination. |
| 5026441 |
High strengths copper base shape memory alloy and its manufacturing process |
June 25, 1991 |
| This invention is concerned with the development of a Cu-base shape memory alloy and it's manufacturing process. The alloy is a Cu-Al-Ni-Zr-Si shape memory alloy exhibiting high strength(830Mpa, 85kg/mml) and good ductility(7.5 - 8%) due to grain size refinement by the addition of mi |
| 5017527 |
Mechanical seals of SiC-coated graphite by rate-controlled generation of SiO and process therefo |
May 21, 1991 |
| A siliconized graphite for use in mechanical seals is provided. This material is prepared by reacting graphite at an elevated temperature ranging from 1800.degree. to 2100.degree. C. with silicon monoxide. Silicon monoxide is generated in rate-controlled fashion by reacting either si |
| 4956396 |
Process for preparing rigid polyvinyl chloride stractured foams having superior surface characte |
September 11, 1990 |
| A new rigid polyvinyl chloride foam is provided which has been improved with respect to the thickness of its non-foamed layer and the surface properties including its tensile strength and compressive strength. The foam can be produced preferably by mixing 3-10 parts per hundred of resin |
| 4886837 |
Process for preparing rigid polyvinyl chloride stractured foams having superior surface characte |
December 12, 1989 |
| A new rigid polyvinyl chloride foam is provided which has been improved with respect to the thickness of its non-foamed layer and the surface properties including its tensile strength and compressive strength. The foam can be produced preferably by mixing (per hundred resin) dioctyl |
| 4683721 |
Twin-crank type heat engine |
August 4, 1987 |
| A heat engine is provided with twin crankshafts and coil shaped power elements mounted between each of two crankshafts. Each power element moves upward and downward, parallel with the surface of a tank of hot water, in which the engine is partially submersed, so that every part of the po |
| 4675434 |
Process for producing phthalic acid esters |
June 23, 1987 |
| A process for preparing phthalic acid esters of formula (I) which comprises reacting the phthalic acids of formula (II) with an aliphatic alcohol in the presence of a catalyst consisting essentially of the dialkyltinoxides of formula (III): ##STR1## wherein R and R.sub.1 are the |
