37th week of 2009 patent applcation highlights part 2 |
Patent application number | Title | Published |
20090224298 | CMOS Image Sensor and Manufacturing Method Thereof - Disclosed are a CMOS image sensor and a manufacturing method thereof. The method includes the steps of: forming an isolation layer on a semiconductor substrate, defining an active region that includes a photo diode region and a transistor region; forming a gate in the transistor region, the gate including a gate electrode and a gate insulating layer; forming a first low-concentration diffusion region in the photo diode region; forming a second low-concentration diffusion region in the transistor region; forming a buffer layer over the substrate, the buffer layer covering the photo diode region; forming first and second insulating layers over the entire surface of the substrate, the first and second insulating layer having a different etching selectivity from each other; forming an insulating sidewall on sides of the gate electrode by selective removal of the second insulating layer; removing the first insulating layer from the transistor region; forming a high-concentration diffusion region in the exposed transistor region, partially overlapping the second low-concentration diffusion region; and forming a metal silicide layer on the high-concentration diffusion region. | 2009-09-10 |
20090224303 | High voltage capacitor and manufacture method thereof - A high voltage capacitor and a manufacture method thereof are provided. The high voltage capacitor comprises a double diffused drain layer, an oxide layer and a poly-crystal silicon layer. The double diffused drain layer is used as a bottom electrode plate of a high voltage capacitor. The oxide layer is formed on the double diffused drain layer, and is completely overlapped on the double diffused drain layer. The poly-crystal silicon layer is formed on the oxide layer, and is used as a top electrode plate of the high voltage capacitor. | 2009-09-10 |
20090224314 | SEMICONDUCTOR DEVICE AND THE METHOD OF MANUFACTURING THE SAME - A power MOSFET exhibits a high breakdown voltage and low ON-state resistance. The device includes a trench formed in a semiconductor substrate, a gate electrode located along a side wall of the trench and a bottom wall of the trench near a side wall thereof, a pillar section, a first drain region of a first conductivity type in the pillar section, a base region of a second conductivity type in contact with the side wall of the trench in a bottom portion thereof and the bottom wall of the trench, a source region of the first conductivity type in a surface portion of the base region, a RESURF region of the second conductivity type in the pillar section, the RESURF region being formed in contact with the first drain region; and a second drain region of the first conductivity type in a side wall surface portion of the pillar section. | 2009-09-10 |
20090224320 | METHOD AND APPARATUS FOR FABRICATING AN ULTRA THIN SILICON ON INSULATOR - In one embodiment, the invention is a method and apparatus for fabricating an ultra thin silicon on insulator. One embodiment of a method for fabricating an ultra thin silicon on insulator includes providing a silicon layer, saturating the silicon layer with at least one reactant gas at a first temperature, the first temperature being low enough to substantially prevent the occurrence of any reactions involving the reactant gas, and raising the first temperature to a second temperature, the second temperature being approximately a dissociation temperature of the reactant gas. | 2009-09-10 |
20090224322 | THIN FILM SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME - A thin film semiconductor device has: a substrate; a low-voltage thin film transistor formed on the substrate and having a first gate insulating film; and a high-voltage thin film transistor formed on the substrate and having a second gate insulating film whose thickness is larger than that of the first gate insulating film. A threshold voltage of the high-voltage thin film transistor of a first conductivity type is adjusted to be lower than a threshold voltage of the low-voltage thin film transistor of the same first conductivity type when the first gate insulating film and the second gate insulating film are assumed to be identical to each other. | 2009-09-10 |
20090224336 | SEMICONDUCTOR DEVICE - A semiconductor device including a plurality of doped regions, a metal layer and a polysilicon layer is provided. The doped regions are disposed in a substrate. The metal layer includes a plurality of metal line patterns. The polysilicon layer disposed between the substrate and the metal layer includes a gate pattern and at least one guard ring pattern. The at least one guard ring pattern connects to the gate pattern and surrounds at least one of the metal line patterns. One of the metal line patterns connects to the gate pattern. The others of the metal line patterns connect to one of the doped regions in the substrate. | 2009-09-10 |
20090224340 | ANTIFERROMAGNETIC HALF-METALLIC SEMICONDUCTOR AND MANUFACTURING METHOD THEREFOR - An antiferromagnetic half-metallic semiconductor of the present invention is manufactured by adding to a semiconductor two or more types of magnetic elements including a magnetic element with a d-electron number of less than five and a magnetic element with a d-electron number of more than five, and substituting a part of elements of the semiconductor with the two or more types of magnetic elements. | 2009-09-10 |
20090224342 | MAGNETORESISTIVE EFFECT ELEMENT AND MAGNETIC RANDOM ACCESS MEMORY - A magnetoresistive effect element includes a reference layer, a recording layer, and a nonmagnetic layer. The reference layer is made of a magnetic material, has an invariable magnetization which is perpendicular to a film surface. The recording layer is made of a magnetic material, has a variable magnetization which is perpendicular to the film surface. The nonmagnetic layer is arranged between the reference layer and the recording layer. A critical diameter which is determined by magnetic anisotropy, saturation magnetization, and switched connection of the recording layer and has a single-domain state as a unique stable state or a critical diameter which has a single-domain state as a unique stable state and is inverted while keeping the single-domain state in an inverting process is larger than an element diameter of the magnetoresistive effect element. | 2009-09-10 |
20090224348 | SOLID-STATE IMAGING DEVICE AND ITS MANUFACTURING METHOD - A solid-state imaging device includes a semiconductor substrate having a photoelectric conversion region, a first microlens provided above the semiconductor substrate, covering the photoelectric conversion region, and having a convex upper surface, for gathering external light into the photoelectric conversion region, and a second microlens provided above the first microlens and having a convex upper surface, for gathering external light into the first microlens. A flat surface is provided at a top portion of one of the first and second microlenses and immediately above the photoelectric conversion region. | 2009-09-10 |
20090224349 | IMAGE SENSOR INCLUDING SPATIALLY DIFFERENT ACTIVE AND DARK PIXEL INTERCONNECT PATTERNS - An interconnect layout, an image sensor including the interconnect layout and a method for fabricating the image sensor each use a first electrically active physical interconnect layout pattern within an active pixel region and a second electrically active physical interconnect layout pattern spatially different than the first electrically active physical interconnect layout pattern within a dark pixel region. The second electrically active physical interconnect layout pattern includes at least one electrically active interconnect layer interposed between a light shield layer and a photosensor region aligned therebeneath, thus generally providing a higher wiring density. The higher wiring density within the second layout pattern provides that that the image sensor may be fabricated with enhanced manufacturing efficiency and a reduction of metallization levels. | 2009-09-10 |
20090224351 | CMOS sensor with approximately equal potential photodiodes - A MOS or CMOS based active pixel sensor designed for operation with zero or close to zero potential across the pixel photodiodes to minimize or eliminate dark current. In this preferred embodiment, the voltage potential across the pixel photodiode structures is maintained constant and close to zero, preferably less than 1.0 volts. This preferred embodiment enables the photodiode to be operated at a constant bias condition during the charge detection cycle. In preferred embodiments the pixel photodiodes are produced with a continuous pin or nip photodiode layer laid down over pixel electrodes of the sensor. In other preferred embodiments the pixel photodiode structures are produced beside and physically isolated from the regions where CMOS circuits are formed. In some of these preferred embodiments the isolated pixel photodiode structures are comprised of crystalline germanium deposited in cavities in a silicon substrate. This embodiment can be adapted especially for imaging at short wave infrared frequencies. Preferred embodiments are adapted for correlated double sampling. | 2009-09-10 |
20090224370 | NON-PLANAR CVD DIAMOND-COATED CMP PAD CONDITIONER AND METHOD FOR MANUFACTURING - The present invention relates to a composite material having non-planar geometries and edge-shaving surfaces comprising a CVD diamond coating applied to a composite substrate made from a ceramic material and a preferably unreacted carbide-forming material of various configurations and for a variety of applications. | 2009-09-10 |
20090224373 | Integrated circuit and method for manufacturing same - When an integrated circuit having an interlayer insulation film built up on top of a wiring layer is subjected to a heat treatment, it is unlikely that a void formed in the interlayer insulation film will rupture in a portion wherein are connected a narrow gap between wirings and a wide open part contiguous therewith. A corner part of a wiring positioned at a portion where a gap and an open part are connected is chamfered, and an end part of the gap is shaped so as to widen toward the open part. Providing the widening end part in the gap thus mitigates any discontinuity in the built up interlayer insulation film between the gap and the open part. As a result, the interlayer insulation film does not readily seal off an end of a void formed in the gap. | 2009-09-10 |
20090224384 | CHIP PACKAGE - A chip package including a die pad, a plurality of leads, a chip, an adhesive, and a molding compound is provided. The die pad has a top surface and a bottom surface opposite to the top surface, wherein the die pad has a blocking portion disposed on the top surface, and the leads are disposed around the die pad. The chip is disposed on the top surface of the die pad surrounded by the blocking portion and is electrically connected to the leads. A top surface of the blocking portion is higher than the top surface of the die pad surrounded by the blocking portion. The adhesive is disposed between the chip and the die pad. The molding compound encapsulates the chip, a portion of the leads, and the die pad. | 2009-09-10 |
20090224388 | SEMICONDUCTOR CHIP STACKING FOR REDUNDANCY AND YIELD IMPROVEMENT - A stacked semiconductor chip comprising multiple unit chips contains multiple instances of a first chip component that have a low yield and are distributed among the multiple unit chips. An instance of the first chip component within a first unit chip is logically paired with at least another instance of the first chip component within at least another unit chip so that the combination of the multiple instances of the first chip component across the multiple unit chips constitute a functional block providing the functionality of a fully functional instance of the first chip component. The stacked semiconductor chip may include multiple instances of a second chip component having a high yield and distributed across the multiple unit chips. Multiple low yield components constitute a functional block providing an enhanced overall yield, while high yield components are utilized to their full potential functionality. | 2009-09-10 |
20090224389 | INTEGRATED CIRCUIT PACKAGE SYSTEM WITH STACKED DEVICES - An integrated circuit package system comprising: providing an integrated circuit die having an active side; forming a first internal stacked module and a second internal stacked module over the active side of the integrated circuit die; and coupling an electrical interconnect between the first internal stacked module or the second internal stacked module and the active side. | 2009-09-10 |
20090224400 | SEMICONDUCTOR ASSEMBLY HAVING REDUCED THERMAL SPREADING RESISTANCE AND METHODS OF MAKING SAME - Semiconductor assemblies having reduced thermal spreading resistance and methods of making the same are described. In an example, a semiconductor device includes a primary integrated circuit (IC) die and at least one secondary IC die mounted on the primary IC die. A heat extraction element includes a base mounted to the semiconductor device such that each of the at least one secondary IC die is between the primary IC die and the heat extraction element. At least one dummy fill is adjacent the at least one secondary IC die, and each thermally couples the primary IC die to the heat extraction element. | 2009-09-10 |
20090224401 | SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF - A semiconductor device comprises a package substrate, a semiconductor chip, a plurality of bump electrodes and one or more dummy chips. The semiconductor chip is mounted on one surface of the package substrate. The bump electrodes are the other surface of the package substrate and electrically connected to the semiconductor chip through a wiring structure. Each of the dummy chips is mounted on a predetermined region close to a corner portion of the semiconductor chip on the one surface of the package substrate. | 2009-09-10 |
20090224402 | Semiconductor Package Having Semiconductor Die with Internal Vertical Interconnect Structure and Method Therefor - A semiconductor wafer is made by forming a first conductive layer over a sacrificial substrate, mounting a semiconductor die to the sacrificial substrate, depositing an insulating layer over the semiconductor die and first conductive layer, exposing the first conductive layer and contact pad on the semiconductor die, forming a second conductive layer over the insulating layer between the first conductive layer and contact pad, forming solder bumps on the second conductive layer, depositing an encapsulant over the semiconductor die, first conductive layer, and interconnect structure, and removing the sacrificial substrate after forming the encapsulant to expose the conductive layer and semiconductor die. A portion of the encapsulant is removed to expose a portion of the solder bumps. The solder bumps are sized so that each extends the same outside the encapsulant. The semiconductor die are stacked by electrically connecting the solder bumps. | 2009-09-10 |
20090224414 | EVAPORATIVE HUMIDIFIER - In the evaporative humidifier of the present invention, a desired humidity is obtained by supplying water only to a humidifying module required for humidification. Air simply passes through a humidifying module to which water is not supplied. Accordingly, air obtained by mixing humidified air passing through the humidifying module which is wet with water being supplied thereto (wet zone) and non-humidified air passing through the humidifying module to which water is not supplied (dry zone) is blown out from an outlet of the evaporative humidifier. The mixture amount (mixture ratio) is controlled by the opening and closing of the valve, so that a desired humidity is obtained. Therefore, with the evaporative humidifier of the present invention, humidity control can be accurately performed without unnecessarily operating the humidifying device and without wasting energy. | 2009-09-10 |
20090224421 | PROCESS FOR FORMING MULTI-LAYER MOLDED ARTICLES - The invention relates to a rotomolding process for forming a multi-layer article of two different polymers with different melting points in which an outer layer polymer powder is added to a rotational molder along with an inner layer polymer powder that is separated from the outer layer powder by a release film. The release film has a particular melting point that is greater than that of the outer layer polymer and preferably between the melting points of the inside layer and outside layer polymers. In one embodiment, the release layer forms an enclosure or bag in which the inner layer (higher melting point) powder is enclosed. In another embodiment the release film forms a barrier between an insulated cavity and the mold. The process provides a means for a “one-shot” rotomolding method. | 2009-09-10 |
20090224422 | Methods of fabricating a composite carbon nanotube thermal interface device - Embodiments of a composite carbon nanotube structure comprising a number of carbon nanotubes disposed in a matrix comprised of a metal or a metal oxide. The composite carbon nanotube structures may be used as a thermal interface device in a packaged integrated circuit device. | 2009-09-10 |
20090224426 | Rapid Cycling Press for Forming a Composite Article - A press includes a pressure chamber filled with a substantially incompressible medium that at least partially encloses an elastomeric vessel filled with a substantially incompressible fluid that is in fluid communication with a pressurized source of the same fluid. Method and systems employing the press are also disclosed. | 2009-09-10 |
20090224427 | Press and Method for Forming a Composite Article - A press includes a pressure chamber filled with a substantially incompressible medium that at least partially encloses an elastomeric vessel filled with a substantially incompressible fluid that is in fluid communication with a pressurized source of the same fluid. Method and systems employing the press are also disclosed. | 2009-09-10 |
20090224431 | TRANSFERRING MATERIALS TO POLYMER SURFACES - A method of providing at least one heat sensitive material on at least part of a surface of a polymer article formed from a heated polymer whose temperature is sufficient to adversely affect the at least one heat sensitive material, wherein an at least partly textured shaping surface is provided. The heat sensitive material is applied to at least part of the shaping surface, the shaping surface being at a temperature at which the heat sensitive material is not adversely affected. The heated polymer is brought in contact with the shaping surface and formed by the surface shape of the shaping surface. The at least one heat sensitive material is transferred from the shaping surface to the polymer surface, while maintaining sufficiently low the temperature of the shaping surface so that the heat sensitive material is not substantially adversely affected by heat upon or after contact with the heated polymer. | 2009-09-10 |
20090224433 | RESIN MOLDING PROCESS AND RESIN MOLDING APPARATUS - A resin forming method and a resin forming apparatus for obtaining a resin formed product, by filling a cavity of a rubber-made mold with a thermoplastic resin, and cooling the thermoplastic resin. When filling the cavity with the thermoplastic resin, an electromagnetic wave generator is used, and electromagnetic waves having an intensity peak in a wavelength region of 0.78 to 2 μm are irradiated to the thermoplastic resin from the surface of the mold, and thereby the thermoplastic resin is heated selectively from the mold. The thermoplastic resin is an ABS resin which either a noncrystalline thermoplastic resin, or is a rubber modified thermoplastic resin. | 2009-09-10 |
20090224443 | NIOBIUM AS A PROTECTIVE BARRIER IN MOLTEN METALS - Devices may be in contact with molten metals such as copper, for example. The devices may include, but are not limited to, a die used for producing articles made from the molten metal, a sensor for determining an amount of a dissolved gas in the molten metal, or an ultrasonic device for reducing gas content (e.g., hydrogen) in the molten metal. Niobium may be used as a protective barrier for the devices when they are exposed to the molten metals. | 2009-09-10 |
20090224491 | CHUCK WRENCH FOR A DRILL - A chuck wrench for use with a drill that has a keyless chuck defining a rotational axis includes a body having an interior surface defining an opening. The opening is configured to receive a portion of the keyless chuck such that the body substantially surrounds the keyless chuck. The interior surface includes a projection configured to mate with an exterior surface of the keyless chuck. The chuck wrench also includes a lever coupled to and extending from the body. The lever is operable to rotate the body about the rotational axis such that the projection engages the exterior surface of the keyless chuck to apply a clamp force to the keyless chuck. | 2009-09-10 |
20090224493 | Vehicle stabilizer system - A stabilizer system for a vehicle includes a stabilizer bar and an actuator and that executes a control actively changing stiffness of the stabilizer bar in accordance with roll moment acting on a body of the vehicle. Each of a situation in which the vehicle is running straightforward and a situation in which a torque generating direction of a motor of the actuator changes in opposite direction plural times is identified as a specific situation. In the specific situation, a control of changing an operation mode of the motor such that presence or absence of occurrence of resistance of the actuator against its operation by external input force is changeable, and a control of limiting a supply current to the motor such that the torque generating direction of the motor is inhibited from coinciding with a direction away from a neutral position are executed. | 2009-09-10 |
20090224523 | HEATED STEERING WHEEL USING INDUCTION CURRENT - The present invention relates to a heated steering wheel using induction current that includes a ferromagnetic material for generating induction current using the change of a magnetic field caused by supplied alternating current when the alternating current is supplied to a wire that is provided between a main body of the steering wheel and an exterior member surrounding the main body. When alternating current is supplied to a wire, the ferromagnetic material generates induction current using the change of a magnetic field caused by supplied alternating thereby causing the temperature of the steering wheel to increase quickly so that it is possible to improve a driver's operation sensibility of the steering wheel when an outdoor air temperature is low. | 2009-09-10 |
20090224542 | WIND TURBINE OPERATIONAL METHOD - Operation method for a variable speed wind turbine which comprises control methods for blade pitch in cases of extreme gusts of wind, characterised by the fact that it is comprised of the following steps: a) detection of the presence of an extreme gust of wind; b) performance of a sudden increase in pitch within the range of 6 to 14 degrees at the maximum speed permitted by the wind turbine blade pitch control mechanisms. The method also includes an additional step; c) vary the generator speed to avoid an increased acceleration of the generator which could make a subsequent step b) necessary. | 2009-09-10 |
20090224543 | Method for the operation of a wind power plant and wind power plant - A method for the operation of a wind power plant ( | 2009-09-10 |
20090224556 | Energy Recovery System Including a Flow Guide Apparatus - An energy recovery system is disclosed that includes a ventilation system of a defined area, at least one windmill located exterior to the defined area and at least one flow guide apparatus positioned between the at least one exhaust and the at least one windmill The ventilation system has at least one exhaust from which air from within the defined area is expelled out of the defined area by an exhaust fan as an exhaust air flow. The one or more flow guide apparatuses are positioned between the exhaust and the one or more windmills and are preferably sized and configured to redirect at least a portion of the exhaust air flow into an axial flow that moves toward one or more of the windmills. | 2009-09-10 |
20090224557 | ENGINE STOP/START SYSTEM AND METHOD OF OPERATING SAME - A method of operating an engine stop/start system includes connecting an armature of a starter motor to the engine through an overrunning clutch when the engine changes a rotational direction. | 2009-09-10 |
20090224561 | Surgical magnetic retrieval tool - A surgical magnetic retrieval tool for retrieving objects attractable by a magnet lost in a surgical cavity during a surgical procedure. The tool is a permanent magnet having a size and shape adapted to be placed in and moved through a surgical cavity to attract and hold the objects for retrieval of them from the cavity, and a flexible tether is attached to the magnet for supporting the magnet, pulling it through the cavity, and retrieving the magnet and objects attracted thereto from the cavity. In one form of the invention the magnet is a flexible magnetic sheet; in another form it is a sphere; in another form it is an oblate spheroid; and in another form it is a disc. The tool is disposable following use. | 2009-09-10 |
20090224577 | Foldable chair with a utility table - The present invention relates to a foldable chair equipped with a table, which comprises two armrests, a table combined with the armrests and two connecting joints, wherein the rectangular table includes a receiving capacity on the top face of the table adapted for putting accessories and a sliding groove underneath; the connecting joints are respectively divided into upper and lower clip units, wherein the upper clip unit has a T-shaped locking member defined on the top and two near sides, and a semi-circular fillister on the bottom of the upper clip unit; the lower clip unit has another semi-circular fillister corresponding to the semi-circular fillister of the upper clip unit; a pair of armrests respectively have four elongated slots positioned around. | 2009-09-10 |
20090224599 | PARALLELED HVDC BUS ELECTRICAL POWER SYSTEM ARCHITECTURE - A power generation and distribution system utilizes two or more AC generators each of which may be driven by a separate prime mover such as a turbine. The generators may be driven at different rotational speeds. AC power from the generators may be rectified and applied to a common DC bus. Electrical loads may be applied to the common bus and may establish an electrical power requirement. Allocation of electrical power requirement may be made among the generators based on power available from the turbines. | 2009-09-10 |
20090224613 | Corrosion-resistant magnetic circuit and voice coil motor or actuator - Provided are a magnetic circuit capable of being manufactured inexpensively due to omission of formation of a corrosion-resistant metallic surface film as well as a voice coil motor or an actuator by utilizing the same. The magnetic circuit comprises yoke members prepared from a plate material of 0.1 mm to 5 mm thickness of a martensite-type, ferrite-type or precipitation-hardening stainless steel material or a Cr-based heat-resistant steel material containing 0.0001-1% (% by mass, the same hereinbelow) of C, 0.0001-5% of Si, 0.001-2% of Mn, 0.0001-0.1% of P, 0.0001-0.2% of S, 0.0001-5% of Al, 0.0001-0.1% of O, 0.0001-0.1% of N, 0.0001-1% of Ni and 10.5-30% of Cr together with at least one alloying element selected from Ti, Co, Cu, Zr, Nb, V, Mo, W, Ta and B as the additive elements in a total amount of 0.0001-5%, the balance being Fe. | 2009-09-10 |
20090224630 | ULTRASONIC ACTUATOR - An ultrasonic actuator includes: an actuator body ( | 2009-09-10 |
20090224644 | Sliding lid for a refrigerator and/or freezer and refrigerator and/or freezer with a sliding lid - The present invention relates to a sliding lid for a refrigerator and/or freezer, comprising a frame and a pane or plate connected with the frame, wherein the pane or plate is arched and one or more latching profiles are provided, which are connected with the frame by a latching connection such that the pane or plate is fixed between the frame and the latching profile(s). | 2009-09-10 |
20090224648 | Planar Display Device - A planar display device whose display panel main body can be easily separated from a chassis member upon disposal without preparing large equipment and a special tool. In the planar display device wherein the PDP panel main body ( | 2009-09-10 |
20090224651 | PHOSPHOR MIXTURE AND PLASMA DISPLAY PANEL COMPRISING THE PHOSPHOR MIXTURE - Phosphor mixtures for phosphor layers of plasma display devices are provided. The phosphor mixture includes a first compound selected from compounds represented by Gd | 2009-09-10 |
20090224685 | DRIVE CIRCUIT FOR DRIVING A GAS DISCHARGE LAMP, AND METHOD OF CALIBRATING A DRIVE CIRCUIT - A method is described for calibrating a CDCCD circuit ( | 2009-09-10 |
20090224691 | Apparatus and Method For Providing an Isolated Set Point from an Input Signal Applied to a Lamp Ballast - The present application discloses a method and apparatus for providing an isolated set point from an input signal. The set point can control the amount of power applied to a lamp via a lamp ballast. An AC output signal from the ballast powers a dimming circuit. The AC signal is coupled across an isolation transformer and subsequently converted into a DC signal. This DC signal is loaded by a variable resistor, which creates a voltage differential across the resistor. This voltage differential is then seen across DC input terminals of the ballast, and it is across the DC input terminals that the set point is created. By varying the value of the resistor, the ballast set point is varied ultimately changing the power that is applied to the lamp by the ballast. | 2009-09-10 |
20090224712 | HEAT-EXCHANGE COOLING DEVICE AND POWER SUPPLY CIRCUIT DRIVER USED THEREFORE - A heat exchange cooler capable of eliminating continuous radiation of high-frequency noise waves and reducing the man hour for the installation work, and a power circuit driving device used for it are provided. A commercial power transformer ( | 2009-09-10 |
20090224713 | METHOD FOR OPERATING A PARALLEL HYBRID DRIVE - In a method for operating a parallel hybrid drive of a vehicle, in particular of a motor vehicle, having an electric machine and an internal combustion engine, the internal S combustion engine is started in the driving state of the vehicle with the aid of the electric machine by engaging a disconnecting clutch. It is provided that at least one performance quantity of the parallel hybrid drive is detected and compared with an appropriate model performance quantity of a model of the parallel hybrid drive, the model not including the internal combustion engine, and that a deviation resulting from the comparison is compensated for, at least partially, by the electric machine. | 2009-09-10 |
20090224732 | POWER SUPPLY UNIT - To provide a power supply unit capable of realizing a multiphase power supply at low cost. For example, each of a plurality of semiconductor devices DEV[ | 2009-09-10 |
20090224735 | FILTER CIRCUIT AND METHOD OF CONTROLLING SAME - Disclosed is a filter circuit that includes means for monitoring currents flowing through positive and negative windings of a common-mode noise filter, and means for performing an adjustment based on the result of monitoring so as to equalize the current flowing positive and negative windings. | 2009-09-10 |
20090224769 | Multi-Series Battery Control System - A multi-series battery control system comprises a plurality of unit battery cell of which unit consists of multiple battery cells connected in series; a plurality of control IC comprising a control circuit for controlling the unit battery cell, a main controller that sends and receives signal to/from the control ICs via an insulation; means for sending an abnormality signal, which represents the existence or the absence of abnormality of the control ICs or the battery cells, to the main controller from the control ICs, responding to the first signal outputted from the main controller via the insulation; and means for searching contents of the abnormality in the control ICs or the battery cells and sending the abnormality contents signal based on the search, to the main controller from the control ICs, responding to the second signal outputted from the main controller via the insulation. | 2009-09-10 |
20090224772 | SYSTEM AND METHOD FOR DE-EMBEDDING A DEVICE UNDER TEST EMPLOYING A PARAMETRIZED NETLIST - S-parameter data is measured on an embedded device test structure, an open dummy, and a short dummy. A 4-port network of the pad set parasitics of the embedded device test structure is modeled by a parameterized netlist containing a lumped element network having at least one parameterized lumped element. The S-parameter data across a range of measurement frequencies is fitted with the parametrized netlist employing the at least one parameterized lumped element as at least one fitting parameter for the S-parameter data. Thus, the fitting method is a multi-frequency fitting for the at least one parameterized lumped element. A 4-port Y-parameter (admittance parameter) is obtained from the fitted parameterized netlist. The Y-parameter of the device under test is obtained from the measured admittance of the embedded device test structure and the calculated 4-port Y parameter. | 2009-09-10 |
20090224786 | RADIO FREQUENCY TESTING SYSTEM AND TESTING CIRCUIT UTILIZED THEREBY - A radio frequency (RF) testing system ( | 2009-09-10 |
20090224809 | SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE AND METHOD FOR EVALUATING AN EYE-OPENING MARGIN - An eye-opening margin measurement method for a high-speed serial data reception circuit which uses a circuit for eye-opening margin measurement involving operation of a clock data recovery circuit without fixing the clock phase. In this method, an error acceleration test can also be made on received data by giving an offset pulse signal to phase information to add a jitter component. The method uses a semiconductor integrated circuit device which includes a serializer/deserializer circuit (SerDes) for receiving serial data and a reference serializer/deserializer circuit (Ref_SerDes) for receiving an accompanying clock signal. The SerDes circuit converts received serial data into parallel data through a recovery clock whose phase is controlled using phase control signal P_CS generated by the Ref_SerDes circuit. An offset pulse signal Offset_Pulse from the pulse-forming circuit is applied to the phase control signal P_CS to make eye-opening margin measurement. | 2009-09-10 |
20090224819 | CONSTANT CURRENT CIRCUIT, AND INVERTER AND OSCILLATION CIRCUIT USING SUCH CONSTANT CURRENT CIRCUIT - A bias current source generates a constant current Iref by applying to a current-generating resistor a voltage proportional to a thermal voltage Vt. A first bipolar transistor and a second bipolar transistor are disposed in series on the path of the constant current which is generated by the bias current source. A third bipolar transistor forms a current mirror circuit with the second bipolar transistor. A fourth bipolar transistor has a base connected to the base of the first bipolar transistor and has an emitter connected to a temperature-compensating resistor. The constant current circuit outputs a sum of the collector currents of the third bipolar transistor and the fourth bipolar transistor. | 2009-09-10 |
20090224821 | Sub-Micron High Input Voltage Tolerant Input Output (I/O) Circuit - A method of providing bias voltages for input output connections on low voltage integrated circuits. As integrated circuit voltages drop generally so does the external voltages that those circuits can handle. By placing input and output devices, in series, external voltages can be divided between the devices thereby reducing junction voltages seen by internal devices. By using external voltages as part of a biasing scheme for integrated circuit devices, stress created by the differential between external voltages and internal voltages can be minimized. Additionally device wells can be biased so that they are at a potential that is dependant on the external voltages seen by the low voltage integrated circuit. | 2009-09-10 |
20090224840 | Photonic diode - An element for interacting with electromagnetic radiation is disclosed, including a first self-resonant body, a second self-resonant body, and a directional device interposed between the first self-resonant body and the second self-resonant body. The directional device is adapted to inhibit propagation of electromagnetic radiation from the second self-resonant body to the first self-resonant body. | 2009-09-10 |
20090224861 | SWITCHING DEVICE - A switching device, for example a circuit breaker, has an input terminal and an output terminal for connection to electrical conductors, and two switching contacts which, when closed, close a current path between the input terminal and the output terminal. A disconnect device is provided for disconnecting the two switching contacts. For triggering the disconnect device, an overcurrent trigger device and/or a short-circuit trigger device are in mechanical operative connection with the disconnect device by way of a reversing lever. The reversing lever includes a first lever arm with a trigger extension that can be actuated by the overcurrent trigger device and/or by the short-circuit trigger device, and a second lever arm with an actuating extension for triggering the disconnect device. To ensure safe operation, the actuating extension is configured to be resiliently compliant. | 2009-09-10 |
20090224879 | VEHICLE DOOR CONTROL SYSTEM AND METHOD - In a vehicle door control system, a portable unit stores registration of an instruction of automatic door-opening to a vehicle unit, when predetermined registration processing is made on the portable unit. In response to a request signal from the vehicle unit, the portable unit transmits a response signal including an ID code and the instruction of the registered automatic door-opening operation. The vehicle unit unlocks a vehicle door without any manual door-unlocking operation by a user and automatically opens the vehicle door, when the response signal includes the instruction and the ID code matches a predetermined ID code. | 2009-09-10 |
20090224896 | METHOD AND SYSTEM FOR INTRUSION DETECTION - Provided is a system and method for detecting the presence of an intruder in a vehicle using sensors to measure the change in distance between a portion of the vehicle and the ground. Distance sensors may be placed in a plurality of locations along the vehicle, preferably under the hood where the sensors have a clear line of sight to the ground. A computer is provided to receive the measurements from the sensors to compute a base distance which represents the weight of the vehicle with no intruder. The sensors continue to measure the distance to the ground and the computer subsequently computes a present distance and compares said present distance to said base distance. The computer activates an alarm when the present distance is lesser than the base distance by a predetermined value. | 2009-09-10 |
20090224960 | Target Detection Method for Use in Radar and Radar Device Using the Target Detection Method - A radar device includes a transmission antenna and a reception antenna having a plurality of antenna elements. The radar device switches the antenna elements in synchronization with a modulation cycle, thereby obtaining a reception signal. At this time, the radar device obtains the reception signal by switching the antenna elements using a first measurement phase and a second measurement phase having different switching cycles as one set. The radar device calculates an azimuth sine value sin θ | 2009-09-10 |
20090224990 | METHODS AND APPARATUS FOR SUPPORTING COMMUNICATIONS USING A FIRST POLARIZATION DIRECTION ELECTRICAL ANTENNA AND A SECOND POLARIZATION DIRECTION MAGNETIC ANTENNA - A communications device, e.g., a mobile wireless terminal, includes a plurality of antennas having different associated polarization directions. The plurality of antennas includes an electrical antenna, e.g., a dipole antenna and a magnetic antenna, e.g., a loop antenna or a slot antenna. In one embodiment the electrical antenna is used for receiving and/or transmitting signals associated with a vertical polarization direction, while the magnetic antenna is used for receiving and/or transmitting signals associated with a horizontal polarization direction in some embodiments different data streams are communicated concurrently via the electrical and magnetic antennas. Methods for operating the communications device to switch between the electrical and magnetic antennas and/or to control reception and/or transmission are described. The novel antenna configuration facilitates the use of the horizontal polarization direction communications between the communications device and a base station without the need for directionally azimuth positioning the magnetic antenna. | 2009-09-10 |
20090225060 | WRIST-MOUNTED LASER WITH ANIMATED, PAGE-BASED GRAPHICAL USER-INTERFACE - A graphical user interface is described that controls an electromagnetic energy output system. A touchscreen presents control icons and receives input from a user; the input being used to control the electromagnetic energy output system. The interface permits modifying stored values of preset operating parameters. | 2009-09-10 |
20090225098 | Guard Band Clipping Systems and Methods - The present disclosure provides embodiments of guard band clipping systems and methods. One guard band clipping system embodiment, among others, includes a vertex processor configured to convert transformed vertex data to integer screen space data and pass the transformed vertex data downstream in a graphics hardware pipeline, and a guard band clipping module coupled to the vertex processor and a guard band arithmetic logic unit coupled to the guard band clipping module, the guard band clipping module configured to determine whether a primitive corresponding to the transformed vertex data is to be clipped and, based on that determination, forward the primitive to the guard band arithmetic logic unit to perform guard band clipping. | 2009-09-10 |
20090225100 | Method and system for magnifying and displaying local image of touch display device by detecting approaching object - Disclosed are a method and system for magnifying and displaying local image of a touch display device. When an object is detected to be approaching an effective touch zone on a touch surface of a touch panel, the distance or altitude between the approaching object at a position on the effective touch zone of the touch panel where the approaching object heads for and the touch surface of the touch panel is determined. When the distance is less than a first predefined approaching altitude, a target graphic representation associated with the position of the approaching object on the touch panel is first enlarged and then, based on a second predefined approaching altitude, an operation of magnification of the local area or the target graphic representation displayed on a display panel corresponding to the position of the approaching object or execution of an executable object linked to the graphic representation is carried out. The second predefined approaching altitude can be defined as being in contact with the touch surface of the touch panel. | 2009-09-10 |
20090225134 | Fluid discharge device, and a printer and media processing device that use the fluid dicharge device - A fluid discharge device suppresses discharge defects caused by adhesion of fluid spray and maintains a good fluid discharge condition. A printer and a media processing device include the fluid discharge device. An inkjet head has ink nozzles for discharging ink. A box-shaped head cap | 2009-09-10 |
20090225141 | LIQUID EJECTING METHOD, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - Provided is a liquid ejecting method, including ejecting a liquid from a liquid ejecting head, wherein: the viscosity of the liquid is in a range from 6 mPa·s to 15 mPa·s, the liquid ejecting head includes: nozzles which eject the liquid; a pressure chamber which applies a pressure variation to the liquid in order to eject the liquid from the nozzles; and a supply unit which communicates with the pressure chamber and supplies the liquid to the pressure chamber, the volume of the supply unit is more than ⅕ of the volume of the pressure chamber and is less than ½ of the volume of the pressure chamber, and the channel length of the pressure chamber is equal to or more than the channel length of the supply unit and is equal to or less than twice of the channel length of the supply unit | 2009-09-10 |
20090225210 | IMAGING DEVICE - A solid-state imaging device, a line sensor and an optical sensor for enhancing a wide dynamic range while keeping high sensitivity with a high S/N ratio, and a method of operating a solid-state imaging device for enhancing a wide dynamic range while keeping high sensitivity with a high S/N ratio are provided. The solid-state imaging device comprises an integrated array of a plurality of pixels, each of which comprises a photodiode PD for receiving light and generating photoelectric charges, a transfer transistor Tr | 2009-09-10 |
20090225225 | VIDEO SIGNAL PROCESSING DEVICE AND VIDEO SIGNAL PROCESSING METHOD - An decomposition filter includes a top-field low-frequency decomposition filter and a bottom-field low-frequency decomposition filter whose coefficient is obtained by vertically inverting the coefficient of the top-field low-frequency decomposition filter. It also includes a top-field high- frequency decomposition filter and a bottom-field high-frequency decomposition filter whose coefficient is obtained by vertically inverting the coefficient of the top-field high-frequency decomposition filter. The above-described filters are switched and used according to which an input signal is for, a top-field or a bottom-field. | 2009-09-10 |
20090225229 | Metadata transmission apparatus, metadata reception apparatus, imaging apparatus, and information management program - Disclosed herein is a metadata transmission apparatus including a storage section configured to store metadata, and a wireless transmission section configured to transmit the metadata stored in the storage section via a wireless communication network. | 2009-09-10 |
20090225257 | LIQUID CRYSTAL DISPLAY APPARATUS - A liquid crystal display apparatus includes: a vertical alignment type liquid crystal cell including a first substrate formed with a first electrode, a second substrate formed with a second electrode, and a liquid crystal layer containing liquid crystal molecules given a pretilt angle; a pair of polarizer plates sandwiching the cell; and a driver device for applying a voltage of a multiplex driving waveform across the first and second electrodes, wherein in a display in-plane parallel to a surface of the first or second substrate, at least one of the first and second electrodes has a zigzag border alternately coupling a first border perpendicular to display in-plane components of directors of liquid crystal molecules in a middle area along a thickness direction of the liquid crystal layer in the absence of applied voltage and a second border extending along a direction crossing the first boarder. | 2009-09-10 |
20090225259 | ARRAY SUBSTRATE AND LIQUID CRYSTAL DISPLAY COMPRISING THE SAME - A liquid crystal display comprising a liquid crystal panel that is formed by attaching a color filter substrate to an array substrate with a liquid crystal layer therebetween. The array substrate comprising a base substrate and a pixel electrode, a signal line, and a light-blocking strip, provided on the base substrate. The light-blocking strip is disposed below and at a side of the signal line and is separated from the signal line by the base substrate, a refractive strip is disposed at the side of the signal line over a gap between the light-blocking strip and the signal line, and the refractive strip is disposed on the same layer as the pixel electrode. The refractive strip deflects light transmitting therethrough from the base substrate side into the liquid crystal layer towards the signal line. | 2009-09-10 |
20090225267 | LIQUID CRYSTAL DEVICE AND ELECTRONIC APPARATUS - A liquid crystal device is provided which includes: a first substrate and a second substrate that are disposed to face each other; a liquid crystal layer that is sandwiched between the first substrate and the second substrate; a first electrode that is provided on the liquid crystal layer side of the first substrate; an insulating layer that is provided on the liquid crystal layer side of the first electrode; and a second electrode that is provided on the liquid crystal layer side of the insulating layer, in which the first substrate has formed thereon a plurality of data lines and a plurality of scan lines which intersect each other; sub-pixels are formed at regions surrounded by the data lines and the scan lines; the second electrode has a plurality of linear electrodes that is disposed with a gap therebetween; each of the plurality of linear electrodes extends in a long-axis direction of the sub-pixels and has at least one bent portion; the bent portion has such a shape that both sides thereof are inclined in opposite directions with respect to the long-axis direction of the sub-pixels; and the data lines or the scan lines are bent in an extending direction of the linear electrodes having the bent portion. | 2009-09-10 |
20090225269 | ACTIVE DEVICE ARRAY MOTHER SUBSTRATE - An active device array mother substrate including a substrate, a plurality of active device arrays, a plurality of common bus lines, at least one first transparent conductive pattern layer, and at least one second transparent conductive pattern layer is provided. The substrate has a plurality of predetermined areas, and the active device arrays are respectively disposed in the predetermined areas. The common bus lines are respectively disposed in the predetermined areas to surround the active device arrays. The first transparent conductive pattern layer is connected or coupled between adjacent two common bus lines. The second transparent conductive pattern layer is extended to the adjacent predetermined area to be connected or coupled to the adjacent common bus line. | 2009-09-10 |
20090225307 | WAFER INSPECTION USING SHORT-PULSED CONTINUOUS BROADBAND ILLUMINATION - An inspection system may be configured to inspect objects, such as semiconductor wafers, using narrow-pulse broadband illumination. The illumination may be obtained in some embodiments using a laser configured to emit light into a material having a spectral broadening effect. The inspection system can include various filters which may be selectively placed in the illumination and/or imaging path in order to tune the spectrum of light impinging on the wafer and the light that is detected. The filters may include selectable filters, fixed filters, and filters whose characteristics can be adjusted in-place. In some embodiments, filters may be used to match the illumination/detection spectra of different tools. Additionally, the broadband illumination may be tuned between inspections and/or during inspections for best results. The system may support Fourier filtering whereby light, related to repetitive features of the object and in one or more wavelength sub-bands of the illumination, may be filtered. | 2009-09-10 |
20090225310 | SURFACE-ENHANCED RAMAN SPECTROSCOPY SUBSTRATE FOR ARSENIC SENSING IN GROUNDWATER - A surface-enhanced Raman spectroscopy (SERS) substrate formed from a plurality of monolayers of polyhedral silver nanocrystals, wherein at least one of the monolayers has polyvinypyrrolidone (PVP) on its surface, and thereby configured for sensing arsenic is described. Highly active SERS substrates are formed by assembling high density monolayers of differently shaped silver nanocrystals onto a solid support. SERS detection is performed directly on this substrate by placing a droplet of the analyte solution onto the nanocrystal monolayer. Adsorbed polymer, polyvinypyrrolidone (PVP), on the surface of the nanoparticles facilitates the binding of both arsenate and arsenite near the silver surface, allowing for highly accurate and sensitive detection capabilities. | 2009-09-10 |
20090225311 | PROBE APPARATUS AND TERAHERTZ SPECTROMETER - A probe apparatus includes a first focusing lens and a second focusing lens. The first focusing lens is arranged on a surface of a base to which a terahertz excitation beam is applied, the surface being opposite to the surface to which terahertz excitation beam is applied, with the lens axis deviated from the center of a point at which the terahertz excitation beam is applied. The second focusing lens is arranged on a surface of a base to which a terahertz detected beam is applied from a source of the terahertz excitation beam, the surface being opposite to the surface to which the terahertz detected beam is applied, with the lens axis deviated from the center of a point at which the terahertz detected beam is applied, in a direction opposite to the direction in which the lens axis of the first focusing lens is deviated. | 2009-09-10 |
20090225414 | Dark Field Objective for a Microscope - The invention relates to an objective for a microscope for dark field microscopy having alternating illumination with grazing incidence. A dark field objective is shown having a front lens for receiving light from a sample and having a dark field illumination device for guiding illumination light onto the sample, the dark field illumination device comprising at least one pair of light decoupling elements, which are each situated in pairs around the front lens opposite to the optical axis for counter parallel illumination of the sample. | 2009-09-10 |
20090225438 | REFLEX, MAGNIFYING OPTICAL SYSTEM - A first lens group in a reflex, magnifying optical system includes sequentially from the side of an object, a first lens that has a negative refractive power and is a meniscus lens having a concave aspect facing toward an image, an optical element (prism) that refracts an optical path, a second lens having a negative refractive power and a concave aspect facing toward the object, and a third lens having a positive refractive power. A portion of an image-side aspect of the first lens abuts a plane of incidence of the optical element. A portion of an object-side aspect of the second lens abuts a plane of transmission of the optical element. | 2009-09-10 |
20090225471 | DISK DEVICE - A disk device includes: an enclosure to enclose a cavity; a plurality of disk media rotatably mounted in the enclosure and arranged along a rotation axis; and heads, movably mounted in the enclosure, to read/record data from/onto corresponding disk media; at least a first one of the disk media exhibiting a structural rigidity different than at least a second of the disk media. | 2009-09-10 |
20090225519 | MEDICINE CABINET ASSEMBLY - An apparatus includes a first mirror platform; the first mirror platform has a first portion and a second portion. A media display device is disposed behind the first mirror platform, such that within the second portion information displayed on the media display device is visible when the media display device is on and is viewed from in front of the first mirror platform. A mounting platform is coupled to a back of the first mirror platform to form a door assembly and the mounting platform can also be a mirror platform. | 2009-09-10 |
20090225520 | COVER MECHANISM AND ELECTRONIC DEVICE USING SAME - A portable electronic ( | 2009-09-10 |
20090225548 | LIGHT SOURCE DEVICE FOR ENDOSCOPE - A light source device includes a xenon lamp, a rotary shutter, a main CPU for controlling drive of these components, and a sub CPU. The main CPU operates when receiving a reset cancel signal from a reset circuit. Between the sub CPU and the reset circuit, an AND circuit is provided. When the reset cancel signal from the reset circuit and a lighting completion signal indicating completion of lighting the xenon lamp are both input, the AND circuit outputs the reset cancel signal to the sub CPU. After the output of the lighting completion signal, the sub CPU operates to drive the rotary shutter. When high-frequency noise which occurs at the time of discharging the xenon lamp stops, the rotary shutter is activated and thereby generating pulses of illumination light. | 2009-09-10 |
20090225568 | Light Device - A light device includes a body having a light source and electrical contacts that plug into a first electrical outlet of a duplex receptacle and receive power therefrom. An outlet cover mounted for pivotal motion with respect to the body about at a pivot axis, which is substantially proximate to a region between the first outlet and a second outlet of the receptacle. The outlet cover pivots away from the body and towards the duplex receptacle to inhibit access to the second electrical outlet. | 2009-09-10 |
20090225571 | MITIGATION OF UNBALANCED INPUT DC FOR INVERTER APPLICATIONS - Mitigating the DC content of an AC output from an inverter is important for electrical system reliability. The inverter may be powered by unbalanced DC inputs while still mitigating the DC content of the AC output wavefrom. The present invention provides methods to mitigate the DC content in the output DC voltage by reshaping the PWM reference signals (carrier signals) according to the DC content in such a way that the DC content is canceled. These reshaped PWM reference signals may be, for example, unsymmetrical reference waveforms. Unlike conventional methods for providing an AC voltage from a DC voltage with an inverter, which may result in DC content in the output AC voltage when an unbalanced DC input voltage is supplied, the present invention provides methods for mitigating the DC content in an AC voltage, even if the inverter providing the AC voltage is supplied with unbalanced DC voltage. | 2009-09-10 |
20090225671 | Monitoring Quality of a Packet Flow in Packet-Based Communication Networks - A communication system includes multiple routers interconnected by a packet-based communication network. Each of the routers includes a monitoring application that monitors quality of one or more packet flows during each of multiple successive monitoring periods. For each of the packet flows, the monitoring application determines quality metrics based on information obtained from transport headers of packets. | 2009-09-10 |
20090225687 | ESTIMATION OF EIGEN COHERENCE BANDWIDTH - Closed loop MIMO FDD schemes can offer significant performance gains for OFDM based wireless communication systems over open loop MIMO schemes. However, the pre-coding weights (eigenvectors) on each of the frequency bands need to be updated and this adds extra overhead. The number of adjacent frequency fingers which can use the same pre-coding weights is governed by the coherence bandwidth of the eigen spatial modes. The receiver uses the average r.m.s. delay spread of the SISO channels as an indicator to the eigen coherence bandwidth, rather than explicitly calculating the eigen coherence bandwidth itself. This technique can be applied to TDD schemes as well, where the channel estimation is done with the reverse link, eliminating the need for feedback. The TDD transmitter can estimate the eigen coherence bandwidth on the basis of average r.m.s. delay spread, which saves computational effort. | 2009-09-10 |
20090225691 | APPARATUS AND METHOD FOR CHANGING MULTICAST AND BROADCAST SERVICE CHANNEL OF TERMINAL IN BROADBAND WIRELESS COMMUNICATION SYSTEM - An apparatus and a method for changing a Multicast and Broadcast Service (MBS) channel of a terminal in a broadband wireless communication system are provided. In the method, an overall channel scheduling information message comprising group information for Connection Identifications (CIDs) of all channels in service is received from a base station. Transmission information of an MBS channel scheduling information message corresponding to a group to which a CID of a current channel belongs is extracted from the overall channel scheduling information message. A relevant MBS channel scheduling information message is received from the base station using the extracted transmission information of the MBS channel scheduling information message. Transmission information of an MBS MAP message for a relevant CID is extracted from the MBS channel scheduling information message. Therefore, an MBS channel change of a terminal can be easily performed. | 2009-09-10 |
20090225704 | UPLINK TILE INDEX GENERATION APPARATUS AND A UPLINK SUBCHANNEL ALLOCATION APPARATUS OF AN OFDMA SYSTEM - A tile index generation apparatus for allocating subchannels of a control channel and a diversity channel, a subchannel allocation apparatus for allocating subchannels of a diversity channel, and a subchannel allocation apparatus for allocating subchannels of an adaptive modulation coding (AMC) channel, which are used for an uplink of an orthogonal frequency division multiplexing access (OFDMA) system, are provided. With these subchannel allocation apparatuses, optimum designs for the uplink subchannel allocation in the OFDM scheme can be provided to a modulator of a subscriber station and a demodulator of a base station, and so the uplink subchannel allocation apparatus has a simple structure and an enhanced transmission speed. | 2009-09-10 |
20090225711 | METHOD AND APPARATUS FOR PRIORITIZING LOGICAL CHANNELS - A method and apparatus are disclosed for prioritizing logical channels when a new transmission is performed. Logical channel resources are allocated for available data to a plurality of logical channels. A maximum bit rate (MBR) credit (i.e., token) is decremented in a buffer (i.e., bucket) associated with a particular one of the logical channels by the size of a medium access control (MAC) service data unit (SDU). The MBR credit may have a negative value. If any of the allocated channel resources remain, the logical channels are served n a decreasing priority order until the data is exhausted. A radio link control (RLC) SDU is not segmented if the whole RLC SDU fits into the remaining resources. The MAC SDU excludes a MAC PDU header and MAC padding. | 2009-09-10 |
20090225714 | Apparatus and method for composing diversity subchannel in wireless communication system - An apparatus and a method for composing a subchannel in a wireless communication system are provided. The method includes performing a subband-based permutation on resources for composing a subchannel; selecting one or more subbands as resources for a band selection subchannel from the resources passing through the subband-based permutation; composing the band selection subchannel using at least one of the selected subbands; performing a resource allocation unit based permutation on resources not selected for the band selection subchannel; composing a resource allocation unit based diversity subchannel using subband remained in the selected subbands after the band selection subchannel is composed and at least one of the resource allocation units of the resources passing through the resource allocation unit based permutation; and composing a tone-based diversity subchannel by performing a tone-based permutation on resources remained after the resource allocation unit based diversity subchannel is composed. | 2009-09-10 |
20090225718 | TECHNIQUES FOR SETTING UP TRAFFIC CHANNELS IN A COMMUNICATIONS SYSTEM - A control channel supporting traffic control in epochs is divided into two control subchannels each being less than or equal to about a half epoch in duration and occurring serially in time. Slot allocation data may be transmitted and received independently over the subchannels. One subchannel may be used for transmitting forward slot allocation data and the other subchannel may be used for transmitting reverse slot allocation data. The channel split into two subchannels may be a paging channel. The forward and reverse slot allocation data may be transmitted between a base station processor and field unit. Forward and reverse traffic data may be staggered by at least about half an epoch. Transmission of traffic data happens within about two epochs after the assignments. | 2009-09-10 |
20090225721 | HIERARCHICAL PILOT STRUCTURE IN WIRELESS COMMUNICATION SYSTEMS - A method for communicating control channel information in a wireless communication system, including transmitting a super-frame having a time-frequency resource region containing an allocation control channel and multiple pilot elements, at least some of which are associated with the allocation control channel, and indicating, in a configuration information control channel of the super-frame, a characteristic of the pilots elements associated with the allocation control channel. | 2009-09-10 |
20090225741 | WIRELESS SYSTEM USING A NEW TYPE OF PREAMBLE FOR A BURST FRAME - The present invention relates to a signal generator and signal processor for single carrier wireless communication systems with frequency domain equalizer, which are operable to use pseudorandom-noise sequences as part of a preamble and possibly as cyclic prefix. The different arrangements and examples of said pseudorandom-noise sequences could be used for coarse timing synchronization, channel estimation, carrier synchronization, signal-noise-ratio estimation and channel equalization. | 2009-09-10 |
20090225758 | NETWORK RELAY APPARATUS, DATA RECEIVING APPARATUS, DATA TRANSMITTING APPARATUS, MULTIPATH MTU FINDING METHOD AND MULTIPATH MTU FINDING SYSTEM - Disclosed is a technique in which, when a plurality of packet routing paths exist, a sender of the packet selects an optimum packet length so as to use network resources effectively. According to the technique, when a plurality of routing paths like a network A ( | 2009-09-10 |
20090225759 | HIERARCHICAL METERING IN A VIRTUAL ROUTER-BASED NETWORK SWITCH - Methods and systems are provided for applying metering and rate-limiting in a virtual router environment and supporting a hierarchy of metering/rate-limiting contexts per packet flow. According to one embodiment, multiple first level metering options and multiple second level metering options associated with a hierarchy of metering levels are provided. A virtual routing engine receives packets associated with a first packet flow and packets associated with a second packet flow. The virtual routing engine performs a first type of metering of the first level metering options on the packets associated with the first packet flow using a first metering control block (MCB) and performs a second type of metering of the second level metering options on the packets associated with the first packet flow and the packets associated with the second packet flow using a second MCB. | 2009-09-10 |
20090225760 | SIP-HTTP APPLICATION CORRELATOR - Systems and methods according to the present invention facilitate communications between devices which utilize different signaling protocols. A gateway can analyze incoming messages, in a first protocol such as SIP, to identify an application instance to which the messages should be routed. The messages can then be converted into another protocol and forwarded to the identified application. | 2009-09-10 |
20090225776 | METHOD AND APPARATUS FOR A SELF-CORRECTING BANDWIDTH REQUEST/GRANT PROTOCOL IN A WIRELESS COMMUNICATION SYSTEM - A self-correcting bandwidth request/grant protocol in a broadband wireless communication system. The protocol uses a combination of incremental and aggregate bandwidth requests. stations primarily transmit incremental bandwidth requests to their associated base stations, followed by periodic transmissions of aggregate bandwidth requests. Risks are reduced that a base station erroneously issues duplicate bandwidth allocations to the same station for the same connection are re. Race conditions that may have occurred using only aggregate bandwidth requests are eliminated. Use of periodic aggregate bandwidth requests that express the current state of respective connection queues provides a “self-correcting.” property. | 2009-09-10 |
20090225796 | Diffraction grating device, laser diode, and wavelength tunable filter - A diffraction grating device includes a substrate with a primary surface having a plurality of grating areas that are periodically arranged with a constant period in a predetermined axis direction, the grating area including a first area and a second area, a diffraction grating structure providing a chirped grating whose pitch monotonically changes along the predetermined axis direction, a core layer that is optically coupled with the diffraction grating structure with a coupling coefficient, a plurality of grating portions including the diffraction grating structure and the core layer, the grating portion including a first portion and second portion that are arranged on the first area and the second area, respectively, of the primary surface and a perturbing layer disposed at the first portion or the second portion. The perturbing layer changes the coupling coefficient between the diffraction grating structure and core layer. A periodical change in the coupling coefficient is formed along the core layer, and this change in the coupling coefficient affects the light propagating through the core layer in the direction of the predetermined axis. | 2009-09-10 |
20090225822 | System and Methods for Receiving OFDM Symbols Having Timing and Frequency Offsets - Systems and methods for receiving an OFDM preamble without knowledge of channel characteristics are provided. An OFDM preamble signal with frequency shifted cyclic extensions is received. Taken together the cyclic extensions form a frequency shifted version of the OFDM preamble signal. Frequency offsets and timing offsets are estimated and corrected in an efficient manner using a simple concatenation approach in the time domain, followed by a summation of the OFDM preamble signal and the concatenation after a transformation of the OFDM preamble and the concatenation into the frequency domain. Phase errors in the frequency domain are estimated and corrected after FFT transformations of the received signals. A valid preamble is detected and additional parameters for receiving subsequently transmitted OFDM symbols in a channel are extracted from the OFDM preamble. The methods are computationally efficient and robust. Receiver implementations for performing the methods in a DVB receiver are disclosed. | 2009-09-10 |
20090225828 | Video Compression System and Method for Compensating for Bandwidth Limitations of a Communication Channel - A system and method are described below for encoding interactive low-latency video using interframe coding. For example, one embodiment of a computer-implemented method for performing video compression comprises: detecting a maximum data rate of a communication channel between a server and a client; transmitting a video stream comprising a series of sequential frames from the server to the client; detecting that the maximum data rate will be exceeded if a particular frame of the sequence of frames is transmitted from the server to the client over the communication channel; and in lieu of transmitting the frame which could cause the maximum data rate to be exceeded, causing the client to re-render the previous frame of the sequence of frames, thereby effectively reducing the frame rate of the video stream rendered on the client. | 2009-09-10 |
20090225873 | Multiple Transmitter System and Method - Systems and methods of data transmission are disclosed. In an embodiment, at least two transmitters are selectively activated and at least one transmitter is deactivated at a serial interface to transmit data via at least two distinct lines. | 2009-09-10 |