| Patent Number |
Title Of Patent |
Date Issued |
| 7623451 |
Bandwidth allocation device and method to guarantee QoS in ethernet passive optical access netwo |
November 24, 2009 |
| The present invention provides a device and method for allocating a bandwidth to a plurality of optical network units (ONUs) for transmitting an uplink frame in the EPON. The bandwidth allocation device includes a plurality of optical network units and an optical line terminal (OLT). |
| 7555555 |
SIP-based multimedia communication system capable of providing mobility using lifelong number an |
June 30, 2009 |
| The SIP-based multimedia communication system for providing mobility using lifelong numbers provides mobility through SIP network service domains and a global domain. The SIP network service domain comprises a user agent and an SIP network server. The user agent transmits request/res |
| 6128302 |
Interworking method of TMN manager and agent systems for providing the end-to-end permanent virt |
October 3, 2000 |
| An interworking method for a telecommunication management network (TMN) manager system and agent systems provide end-to-end permanent virtual path service. The interworking method includes the steps of: building up a database, transferring a connection result to the TMN operator if an |
| 6055599 |
Hierarchical crossbar interconnection network for a cluster-based parallel processing computer |
April 25, 2000 |
| The present invention relates to a hierarchical crossbar inter-connection network for a cluster-based parallel processing computer. A crossbar network is composed of the "n" number of crossbar switches which is byte sliced, eight links for connecting eight nodes, and two links for co |
| 5977557 |
Hot-electron photo transistor |
November 2, 1999 |
| The present invention is related to a hot-electron photo transistor. By applying the combination of quantum dots or quantum wires with sizes, the wide spacer layers, and the blocking layers to the electron injecting barrier of the emitter, the wide range of infrared detection can be |
| 5936489 |
Dielectric microwave filter |
August 10, 1999 |
| A dielectric microwave filter includes a dielectric body, a trinity of first, second and third resonant slots, a pair of cavities for transmitting input/output signals, a pair of slits, and a trinity of first, second and third resonant holes. Each of the resonant slots (and an associ |
| 5809027 |
Arbitration switching system and a method of arbitration switching in a high-speed packet switch |
September 15, 1998 |
| An arbitration switching system and a method of arbitration switching in a high-speed packet switching system uses a subscriber input/output device, an arbitration switching system and a parallel common bus part for the purpose of point-to-point communication point-to-multipoint communic |
| 5770509 |
Method for forming an inductor devices using substrate biasing technique |
June 23, 1998 |
| Methods for foming an inductor devices used for impedance matching in the radio frequency integrated circuits are disclosed. In the integrated inductor device according to the present invention, an additional electrode is arranged in surroundings of an inductor metal line, and the re |
| 5677264 |
Process for forming A-axis oriented superconducting junction |
October 14, 1997 |
| The present invention discloses a process for forming an a-axis superconducting junction by adjusting the deposition temperature of an oxide normal conductor layer/and oxide superconductor layer/an oxide insulating layer/an oxide normal conductor layer/and an oxide superconductor lay |
| 5665990 |
Metal oxide semiconductor device with self-aligned groove channel and method for manufacturing t |
September 9, 1997 |
| A metal oxide semiconductor device with a self-aligned groove channel structure is disclosed comprising a substrate in which a first channel region of a first conductivity type and source and drain regions of a second conductivity type are formed, a first gate insulating layer formed |
| 5659687 |
Device for controlling memory data path in parallel processing computer system |
August 19, 1997 |
| A memory data path controller for a large-scale parallel processing computer system in which, when a network interface and bus interface request access to a single-port memory, a dual path controller dividedly stores memory access requests in network queue and bus queue. This allows |
| 5649000 |
Method and system for providing a different frequency handoff in a CDMA cellular telephone syste |
July 15, 1997 |
| A cellular system transfers a call from a source base station to the target base station. A mobile unit measures the strength of pilot signals emanating from surrounding base stations. In response to the result of the measurement, a different frequency hand off operation is initiated by |
| 5612696 |
Digital-to-analog converter of current segmentation |
March 18, 1997 |
| A digital-to-analog (D/A) converter of current segmentation is disclosed. A plurality of current sources are connected in parallel to one another and connected to a load resistance through a plurality of first switches. A second switch is connected in parallel to the first switches and o |
| 5581108 |
Optical Switching device |
December 3, 1996 |
| Disclosed is an optical switch device for totally reflecting an incident light therein in accordance with a change in refractive index occurring owing to current application, which is manufactured by the steps of: sequentially forming an optical waveguide layer, an n-InP clad layer and |
| 5577621 |
Wafer installing cassette for semiconductor manufacturing apparatus |
November 26, 1996 |
| A wafer installing cassette for semiconductor manufacturing apparatus is disclosed, in which various sizes of wafer can be installed within a certain range. In the present invention, the wafer installing cassette includes two or more shelves each having a plurality of annular steps, and |
| 5554061 |
Method for making a vertical resonant surface-emitting micro-laser |
September 10, 1996 |
| The present invention is a vertical resonant surface-emitting laser, and more particularly, a method for making a micro-laser that can be emitted to the upper surface of resonance structures by forming electrodes on the side surface of the resonance structures. By forming the electrodes |
| 5500887 |
Data access method for subscriber location information |
March 19, 1996 |
| A data access method for subscriber location information in storing and controlling subscriber location information in a digital mobile communication network is disclosed. The data access method provides a search procedure, an addition procedure and a deletion procedure for the subsc |
| 5500389 |
Process for formation for hetero junction structured film utilizing V grooves |
March 19, 1996 |
| A process for formation of a hetero junction structured film utilizing V grooves is disclosed. A monocrystalline film 1 is etched into V grooves, and thereupon, a hetero film 2 having misfits is grown, so that dislocations would be intensively distributed within the V grooves. Then, |
| 5500047 |
Apparatus for adsorbing atomic hydrogen on surface |
March 19, 1996 |
| A surface adsorption apparatus for dissociating H.sub.2 molecules into atomic hydrogen in a vacuum vessel and adsorbing the atomic hydrogen on a sample surface is disclosed. A vacuum tube is mounted in the vacuum vessel. A nozzle is connected to the vacuum tube having a plurality of |
| 5497393 |
Semiconductor laser with super structure grating distributed Bragg reflector |
March 5, 1996 |
| Disclosed is a semiconductor laser with a super structure grating DBR capable of generating a pulse train of from several hundred giga Hz to several tera Hz, comprising a saturable absorber section, a gain section, a phase control section and an super structure grating distributed Bragg |
| 5484737 |
Method for fabricating bipolar transistor |
January 16, 1996 |
| Disclosed is a fabrication of a bipolar transistor with a super self-aligned vertical structure in which emitter, base and collector are vertically self-aligned, the fabrication method comprising the steps of forming a conductive buried collector region in a silicon substrate by usin |
| 5472505 |
Apparatus for monitoring films during MOCVD |
December 5, 1995 |
| An apparatus for monitoring a film growth is disclosed, in which, when a crystalline thin film is grown by applying an MOCVD (metalorganic chemical vapor deposition method), the variation of the thickness and composition due to certain factors can be detected with real time during the fi |
| 5459428 |
Switch circuit for monolithic microwave integrated circuit device |
October 17, 1995 |
| Disclosed is a switch circuit which has a depletion mode n-channel MOSFET which can be used in a circuit allowing only a positive voltage to be supplied thereto, comprising a first D-FET having a gate for receiving an input signal, a drain for outputting an output signal and a source; a |
| 5321498 |
Planar integrated crossover optical system |
June 14, 1994 |
| The present invention relates to planar integration of an optical system. The optical system is an integration of a crossover switching network having several optical elements such as mirrors, lenses, beam splitters etc., spatially separated on a single wafer using an acute-angle prism |
| 5314833 |
Method of manufacturing GaAs metal semiconductor field effect transistor |
May 24, 1994 |
| A method of manufacturing a GaAs field effect transistor comprises depositing a silicon thin film 202 on a semi-insulating semiconductor substrate 201, forming a first sensitive film 203 by a photolithography to define channel areas and ion-implanting n-type dopants into the substrate |
