Feng, Chengdu
Beibin Feng, Chengdu CN
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20160141053 | SUPERSONIC MOLECULAR BEAM INJECTING DEVICE - This device includes a molecular beam valve, a cold/hot precipitator and a magnetic shielding cylinder, wherein molecular beam valve is nested in cold/hot precipitator and precipitator is nested in magnetic shielding cylinder and molecular beam valve is fixed on flange connected to vacuum chamber of a fusion device, outlet of molecular beam valve has a lengthened Laval nozzle. The device solves technical problem that plasma feeding efficiency of existing supersonic gas injector is below 20% during operation of a high-performance Tokamak high confinement mode and constraint is poor; and an effect of applying device to existing large-scale superconducting Tokamak has shown: feeding efficiency reaches 40%; and a function of triggering a low constraint mode converted to a high constraint mode; and a function of mitigating instability of an edge localized mode, so heating load on wall surfaces of fusion device is reduced by 50%, thereby maintaining normal H-mode operation. | 05-19-2016 |
Jinggang Feng, Chengdu CN
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20160048494 | FORM FILLING METHOD AND RELATED TERMINAL - A form filling method and related terminals are disclosed. The method includes scanning, by a first terminal, a digital object identifier generated by a second terminal; acquiring an operational source identifier of a form to be filled and item(s) to be filled from the digital object identifier; acquiring information content(s) corresponding to the item(s) to be filled from a pre-stored correspondence relationship between the information item(s) and the information content(s) and/or through an auxiliary device of the first terminal; and sending the information content(s) corresponding to the item(s) to be filled and the operational source identifier to a first server correspondingly, to enable the second terminal to acquire the information content(s) corresponding to the item(s) to be filled from the first server based on the operational source identifier to fill in the form. As can be seen, in the present disclosure, form information of the user does not need to be stored in the second terminal, thus improving the security. Furthermore, the second terminal may acquire the information content(s) corresponding to the item(s) to be filled regardless of how the item(s) may have been changed, thus being applicable to a number of different application scenarios. | 02-18-2016 |
Liang-Huan Feng, Chengdu CN
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20150214403 | ULTRATHIN GROUP II-VI SEMICONDUCTOR LAYERS, GROUP II-VI SEMICONDUCTOR SUPERLATTICE STRUCTURES, PHOTOVOLTAIC DEVICES INCORPORATING THE SAME, AND RELATED METHODS - Disclosed are ultrathin layers of group II-VI semiconductors, group II-VI semiconductor superlattice structures, photovoltaic devices incorporating the layers and superlattice structures and related methods. The superlattice structures comprise an ultrathin layer of a first group II-VI semiconductor alternating with an ultrathin layer of at least one additional semiconductor, e.g., a second group II-VI semiconductor, or a group IV semiconductor, or a group III-V semiconductor. | 07-30-2015 |
Lin Feng, Chengdu CN
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20150257219 | TIMING CIRCUITS AND DRIVING CIRCUITS USED IN LIGHTING SYSTEMS - A timing circuit used in lighting systems includes a first logic circuit, a first counter, a latching circuit and a judging circuit. The first logic circuit generates a first logic signal and a second logic signal based on a falling edge of a detecting signal. The first counter generates a first counting signal and a second counting signal based on the second logic signal, wherein the counting period of the first counting signal is longer than that of the second counting signal. The latching circuit samples and holds the first counting signal based on the first logic signal and provides a third counting signal. The judging circuit detects whether the second counting signal is equal to the third counting signal and provides a timing signal. | 09-10-2015 |
20150366018 | DIMMER COMPATIBLE LED DRIVING APPARATUS WITH ADJUSTABLE BLEEDING CURRENT - An LED driving apparatus includes a rectifier bridge generating a DC bus voltage, a bus capacitor coupled between the output terminal of the rectifier bridge and a reference ground, a voltage sensing circuit generating a voltage sensing signal indicative of the DC bus voltage, a bleeding circuit providing a bleeding current for the bus capacitor, a switching converter configured to convert the DC bus voltage into a driving signal to drive an LED, a dimming mode detector detecting whether the LED driving apparatus is coupled to a leading edge dimmer or a trailing edge dimmer based on the voltage sensing signal, and a bleeding control circuit generating a control signal to control the bleeding circuit based on the voltage sensing signal, the leading edge dimming mode signal and the trailing edge dimming mode signal. | 12-17-2015 |
20150366019 | DIMMING MODE DETECTION METHOD USED IN LED DRIVING APPARATUS - A dimming mode detection method is used in an LED driving apparatus including a rectifier bridge providing a DC bus voltage and a switching converter configured to convert the DC bus voltage into a driving signal to drive an LED. The method involves: powering on the LED driving apparatus; sensing the DC bus voltage and generating a voltage sensing signal; comparing a rising time during which the voltage sensing signal increases from a second threshold voltage to a first threshold voltage with a first time threshold to detect whether the LED driving apparatus is connected to a leading edge dimmer; and comparing a falling time during which the voltage sensing signal decreases from a third threshold voltage to a fourth threshold voltage with a second time threshold to detect whether the LED driving apparatus is connected to a trailing edge dimmer. | 12-17-2015 |
Shaochuan Feng, Chengdu CN
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20150063673 | ULTRAVIOLET ANTI-COUNTERFEITING CHECK VERIFICATION METHOD - The invention relates to a ultraviolet anti-counterfeiting check verification method which solves subjective defect and time consuming problems of the traditional verification methods, and comprises the following steps: a. collecting ultraviolet gray level image by a ultraviolet scanner; b. extracting a first binary image from the ultraviolet gray level image; c. calculating a tilt angle of the first binary image; d. calculating tilt correction positions of pixels of the ultraviolet gray level image and the first binary image; e. determining a top left corner locating position of a first binary image rectangle; f. extracting a second binary image from the tilt corrected ultraviolet gray level image; g. performing position correction on the second binary image of a check to be verified; and h. calculating the matching degree between the second binary image of the check to be verified and a second binary image of a real check to verify authenticity. | 03-05-2015 |
20150142648 | Corporate Bill Self-service System with Blank Bill Vending and Temporary Bill Storage Functions - The invention solves present problems of insufficient flexibility and convenience and inefficiency in processing of corporate bill businesses, and provides a corporate bill self-service system with functions of blank bill selling and temporary bill storage, and the technical solution thereof can be summarized as follows: the corporate bill self-service system with functions of blank bill selling and temporary bill storage consists of a business self-service center platform and at least a front-end corporate bill self-service terminal which are connected with each other; the corporate bill business self-service centre platform is used for providing entry of system basic platform building information, data storage, equipment monitoring, optical character recognition (OCR), interface with an external system and system data inquiry statistics management; and the front-end corporate bill self-service terminal is used for storing corporate bills, recovering invalidated corporate bills, achieving interaction with users, and acquiring and identifying key information of corporate bills. | 05-21-2015 |
Yong Feng, Chengdu CN
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20140116129 | MEMS Utility Meters with Integrated Mass Flow Sensors - This invention is related to an apparatus which incorporates a microfabricated silicon mass flow sensor to measure city gas flow rate in a medium pressure range for utility industry which is dominated by conventional mechanical meters such as turbine and rotary meters. The microfabricated mass flow sensor is so called micro-electromechanical systems (a.k.a. MEMS) device. Due to the small feature size of micro scale for MEMS mass flow sensor, the invented apparatus includes many advantages such as low power consumption, compact package, high reliability and extended dynamic measurement range. This apparatus is also provided with a stable flow conditioning to achieve a desired dynamic range capability. Furthermore, because of the high accuracy characteristic, the apparatus in this invention could be applied tot custody transfer or tariff in utility industry as well. | 05-01-2014 |
20140118161 | MEMS UTILITY METERS WITH EXCHANGEABLE METROLOGY UNIT - An all-electronic utility gas meter using with micromachined (a.k.a. MEMS Micro Electro Mechanical Systems) silicon sensor to measure gas metrology data for custody transfer or tariff in city gas metering application is disclosed in the present invention. The meter has two separate metrology units. One of the units is located in the main flow channel with the insertion probing configuration while the other is configured as a bypass unit assembly with the main metrology unit. The bypass metrology unit can perform independent metrology tasks and can be exchanged onsite during service, maintenance or repair without dismantle the meter from the service pipeline. The bypass metrology unit also can be used to compare the measured data from time to time and performance self-diagnosis that shall help the performance and data authentication during the meter field service. Both of the units can be powered by battery or external sources. The units can be connected to network as well as provide internal plural storages for data transmission and safety. | 05-01-2014 |
Zhaoping Feng, Chengdu CN
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20150076754 | FLEXIBLE SUPPORT SHAFT - A flexible support shaft ( | 03-19-2015 |
20150290970 | WHEEL HUB, WHEEL HUB MOTOR WHEEL, AND ELECTRIC VEHICLE - A wheel hub includes a support ring ( | 10-15-2015 |
Zhengyong Feng, Chengdu CN
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20140346954 | WHITE LED LIGHT EMITTING DEVICE DRIVEN DIRECTLY BY CONSTANT ALTERNATING CURRENT - The present invention discloses a white LED light emitting device driven directly by constant current in manner of being supplied with alternating current. N parallel branches, consisting of LED modules and constant current units which are in series connection with the LED modules, are connected to an output terminal of a rectification circuit, and by setting the current value, the turning-off voltage, and the turning-on voltage of the constant current unit of each branch, the periodic flickers generated due to changes in the voltage of the alternating current can be avoided. Because the current of each branch is constant, the changes in junction temperatures do not result in the current changing in LED, and the reliability is improved. Along with the increase of the number of the branches, the driving current waveform approximates a sine wave, and the power factor and the efficiency of the light emitting device are improved. | 11-27-2014 |