Jizhong
Jizhong Wang, Zhongshan CN
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20130320889 | BLOWER SYSTEM AND METHOD FOR CONTROLLING THE SAME - A blower system, including a permanent magnet motor and a wind wheel. The permanent magnet motor includes a stator assembly, a rotor assembly, and a motor controller. The rotor assembly includes a salient pole rotor including a rotor core and magnets embedded in the rotor core. The motor controller includes a microprocessor, a frequency inverter, and a sensor unit. The sensor unit inputs a phase current or phase currents, a phase voltage, and a DC bus voltage into the microprocessor. The microprocessor outputs a signal to control the frequency inverter which is connected to a winding of the stator assembly. The ratio between an air gap of the motor and the thickness of the magnets ranges from 0.03 to 0.065, and the ratio between the length of a pole arc and the length of the magnets ranges from 0.8 to 1.0. | 12-05-2013 |
Jizhong Wang, Bolingbrook, IL US
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20150211760 | DIRECT POWER CONTROL FOR CONSTANT AIRFLOW CONTROL WITH ADVANCED MOTOR SYSTEM MODELING - Systems and methods for providing constant airflow based on direct motor power control and advanced motor system modeling are described. A power and speed of a motor may be determined based on static pressure in the system. A target airflow rate for the system may be obtained, and a target motor power that yields the target airflow rate in the system may be determined based on the determined speed of the motor and the obtained target airflow rate for the system. A determination of whether the determined motor power is approximately equal to the target motor power may be made, and the power of the motor may be adjusted when the motor power is not approximately equal to the target motor power. | 07-30-2015 |
Jizhong Zhao, Xi'An CN
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20150363910 | METHOD FOR EDGE-DIRECTED ADAPTIVE IMAGE INTERPOLATION AND VLSI IMPLEMENTATION DEVICE FOR THE SAME - Disclosed is a method for edge-directed adaptive image interpolation and a VLSI implementation device thereof. The method comprises: computing gradient magnitude and gradient direction of source image, obtaining edge information by comparing gradient magnitude and local adaptive threshold value, edge direction is vertical direction of the gradient direction; classifying edge direction, and filtering using edge information, so that an image is divided into regular edge region and non-edge region. Regular edge region interpolation is conducted along edge direction, methods of improved bicubic interpolation, parallelogram bicubic interpolation and parallelogram bilinear interpolation based on local gradient information are adopted according to classification of edge information; non-edge region image interpolation is conducted by adopting improved bicubic interpolation method based on local gradient information. The device of the present invention comprises edge information extracting module, adaptive interpolation module, input line field synchronous control module and scaling line field synchronous control module. | 12-17-2015 |
Jizhong Zhou, Shenyang CN
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20150257385 | Substituted Pyrimidine Compound and Uses Thereof - Disclosed is a substituted pyrimidine compound having a structure as represented by formula PY. | 09-17-2015 |
Jizhong Zhou, Norman, OK US
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20160002687 | METHODS OF PRODUCING PROTOPORPHYRIN IX AND BACTERIAL MUTANTS THEREFOR - The presently disclosed inventive concepts are directed in certain embodiments to a method of producing protoporphyrin IX by (1) cultivating a strain of | 01-07-2016 |