Patent application number | Description | Published |
20100290568 | DECODING FREQUENCY CHANNELISED SIGNALS - There is disclosed a method and receiver for decoding a data signal from analogue signals received at one or more receiving antennas ( | 11-18-2010 |
20120275426 | FIXED MULTIPLE ACCESS WIRELESS COMMUNICATION - Disclosed is a user terminal for wireless communication with a remote access point, the user terminal comprising: a mapping module adapted to map one or more input data bits to an uplink symbol; a delay module adapted to apply a delay to the uplink symbol; a transmit module adapted to modulate the delayed symbol into a frequency channel; and a directional antenna oriented along a dominant path to the access point, the antenna being adapted to transmit the modulated symbol to the access point, wherein the delay is chosen such that the transmitted symbol arrives at the access point simultaneously with a further symbol modulated into the frequency channel and transmitted by a further user terminal. | 11-01-2012 |
20120314751 | Channel Estimation In A Multi-User MIMO-OFDM System In The Presence Of User Terminal Symbol-Specific Phase Offsets - Disclosed is an OFDM wireless communication system comprising an access point, and a plurality of remote user terminals. The access point receives one or more training symbols transmitted by the user terminals, each training symbol comprising pilot symbols associated with phase offset estimation OFDM sub-carriers of said training symbol, the phase offset estimation sub-carriers comprising subsets of sub-carriers associated with respective user terminals, wherein each subset is used exclusively by the associated user terminal during channel estimation, and further symbols associated with channel estimation OFDM sub-carriers of said training symbol, wherein the channel estimation sub-carriers are used by all user terminals. The access point estimates, for each user terminal, symbol-specific phase offsets specific to the user terminal using the received pilot symbols associated with the user specific subset of the phase offset estimation sub-carriers; and estimates the uplink channel using the user-terminal-symbol-specific phase offset estimates and the received further symbols. | 12-13-2012 |
20140140320 | FIXED MULTIPLE ACCESS WIRELESS COMMUNICATION - Disclosed is a user terminal for wireless communication with a remote access point, the user terminal comprising: a mapping module adapted to map one or more input data bits to an uplink symbol; a delay module adapted to apply a delay to the uplink symbol; a transmit module adapted to modulate the delayed symbol into a frequency channel; and a directional antenna oriented along a dominant path to the access point, the antenna being adapted to transmit the modulated symbol to the access point, wherein the delay is chosen such that the transmitted symbol arrives at the access point simultaneously with a further symbol modulated into the frequency channel and transmitted by a further user terminal. | 05-22-2014 |
Patent application number | Description | Published |
20090037084 | Method of Operating an Engine Upon Occurrence of Abnormal Combustion and Operation Control Apparatus Therefor - Provided are a method of operating an engine and an apparatus for controlling operation of an engine, which is capable of appropriately controlling the operation of the engine after cutoff of fuel into a cylinder in which heavy knock occurs, without at once stopping the engine upon detection of occurrence of the heavy knock. The method of operating an engine which has a plurality of cylinders, and which is capable of stepwise or continuously correcting a burning state through fuel regulation including cutoff of fuel, upon occurrence of abnormal combustion, executes a stop or an output limit operation of the engine, and is characterized in that a simulated abnormal combustion obtained by calculating an abnormal combustion state of the engine in simulation is beforehand set, and in comparison of a detection signal as to a burning state of a selected cylinder which is sequentially selected among the plurality of cylinders, with the simulated abnormal combustion signal so as to determine occurrence of abnormal combustion in the selected cylinder in order to execute cutoff of fuel into the selected cylinder. | 02-05-2009 |
20100043744 | MICRO-PILOT INJECTION IGNITION TYPE GAS ENGINE - What is disclosed is a micro-pilot injection ignition type gas engine, whereby an air fuel ratio control in starting the engine is executed with enhanced precision, by means of introducing skip-firing intermittent operations which reflect the engine operation conditions, while an idling time span can be shortened or omitted. | 02-25-2010 |
20100126170 | METHOD TO CONTROL A GAS ENGINE SYSTEM THEREOF - A method to control a gas engine system is disclosed, whereby the engine can be operated with an air-fuel-ratio controlled with high precision, even in using a low calorific fuel-gas that is prone to vary in calorific value; the engine system includes:
| 05-27-2010 |
20100282871 | FUEL INJECTION VALVE DEVICE - A fuel injection valve can be provided, with which temperature at needle valve seating position can be decreased and carburization of fuel and deposition of the carbide near the needle valve seating position can be prevented resulting in stable normal fuel injection control, and which is applicable to small and middle and also to large engines, particularly gas engines. The fuel injection valve is composed such that distance (A) from a seating face of the nozzle in the nozzle supporting body to a seating position of the needle valve in the nozzle is determined to be smaller than distance (B) from the nozzle seating face in the nozzle supporting body to the lower end of clearance between a nozzle insertion hole of the nozzle supporting body and a fitting part of the nozzle inserted into the nozzle insertion hole, thereby suppressing heat flow to the needle valve seating position. | 11-11-2010 |
20110247589 | METHOD TO CONTROL A GAS ENGINE AND A GAS ENGINE SYSTEM THEREOF - Provided are a method controlling a gas engine system capable of controlling an air-fuel ratio with a high degree of accuracy even through fuel gas has a low calorie so that the calorific value thereof is likely to vary, and the gas engine system. In the method of controlling a gas engine system in which air fed through a turbocharger is mixed with fuel gas flowing through a fuel gas supply line and controlled as to its supply quantity by a fuel flow control so as to feed the thus obtained mixture gas into a combustion chamber, in the case that the fuel gas has a low calorie or the engine output power is high, a portion of the fuel gas is diverged from the fuel gas supply line upstream of the fuel flow control valve, the flow rate of the diverging fuel gas being set to a constant valve which is less than that of the diverged side fuel gas, the diverging fuel gas is fed into the combustion chamber through a divergence control valve provided on a gas supply diverging pipe while the remainder of the fuel gas is fed into the fuel flow control valve through a gas supply main pipe in order to control the quantity of the fuel gas so as to set the mixture gas fed into the combustion chamber to a predetermined air-fuel ratio, and in the case that the fuel gas has a high calorie or the engine output power is low, the divergence control valve is closed so as to feed the fuel gas only into the gas supply main pipe. | 10-13-2011 |
Patent application number | Description | Published |
20090004585 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic photoreceptor which can respond to a reduction in diameter of photoreceptor and a process having high circumferential speed, due to the demand in the miniaturization and increase in the speed of copiers and printers. The photoreceptor has high sensitivity in long-wavelength region, and is free from deterioration of electric characteristics even after repeated use, and is highly stable. The electrophotographic photoreceptor has a conductive support member and a photosensitive layer laminated thereon, which includes at least a charge-generating agent, a charge-transfer agent, and a binder resin. The charge-generating agent is oxytitanium phthalocyanine, which has a Bragg angle ( | 01-01-2009 |
20090136260 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic photoconductor including a conductive support and a photosensitive layer, wherein the photosensitive layer contains a charge generation agent, a charge transport agent and a binder resin, and wherein the charge generation agent contains an asymmetric disazo pigment represented by General Formula (I), the charge transport agent contains a triphenylamine compound represented General Formula (IX), and the mass ratio of the charge transport agent to the binder resin is 0.3 to 2.0, | 05-28-2009 |
20100178074 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS - To provide an electrophotographic photoconductor including: a substrate; a charge generating layer; and a charge transporting layer, the charge generating layer and the charge transporting layer being disposed over the substrate, wherein the charge transporting layer contains a charge transporting material represented by General Formula (I) below and an additive represented by General Formula (II) below: | 07-15-2010 |
20100233602 | Electrophotographic Photoconductor - An electrophotographic photoconductor including a conductive substrate, and a photosensitive layer formed on the conductive substrate, wherein the photosensitive layer contains at least a charge generation agent, a specific charge transfer agent and a specific antioxidant. | 09-16-2010 |
Patent application number | Description | Published |
20100216554 | MUSIC GENRE JUDGING DEVICE AND GAME MACHINE HAVING THE SAME - The music genre judging device comprises: a signal processing unit | 08-26-2010 |
20100234108 | MUSIC GENRE JUDGING DEVICE AND GAME MACHINE HAVING THE SAME - A music genre judging device able to judge a genre of music in a relatively simple structure. | 09-16-2010 |
20120032717 | POWER-ON RESET CIRCUIT - When the value of a power supply voltage (VDD) becomes a first threshold value or higher, a first start-up circuit ( | 02-09-2012 |
20130055712 | GAS ENGINE - A gas engine includes a generator coupled to an output shaft thereof, an intake passage to which a low-concentration methane gas (VAM gas) derived from mine venting is supplied, and a gas mixing unit mixing a high-concentration methane gas (CMM gas) to the low-concentration methane gas midway along the intake passage, so that a gas mixture of the low-concentration methane gas and the high-concentration methane gas is supplied to and burnt in a combustion chamber. A turbocharger is provided in the intake passage upstream of the gas mixing unit, and in the intake passage upstream of the turbocharger, is provided a mixture ratio adjusting unit adjusting a mixture ratio of the low-concentration methane gas and the air. The temperature or flow rate of intake gas flowing into the turbocharger is kept in a constant range by an intake controller. | 03-07-2013 |
20130067913 | GAS ENGINE HAVING INTERCOOLER - In a gas engine | 03-21-2013 |
20130101401 | SEAL AIR SUPPLY SYSTEM AND EXHAUST GAS TURBINE TURBOCHARGER USING SEAL AIR SUPPLY SYSTEM - Provided is a seal air supply system including: a seal air compressor | 04-25-2013 |
20130220278 | FUEL GAS SUPPLY METHOD AND SUPPLY UNIT FOR GAS ENGINE - In an gas engine provided with a gas supply pipe | 08-29-2013 |
20140000255 | AIR SUPPLY DEVICE OF GAS ENGINE | 01-02-2014 |