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公开(公告)号:US10384941B2
公开(公告)日:2019-08-20
申请号:US15839995
申请日:2017-12-13
Inventor: Chun-Te Wu , Kuan-Ting Lai , Cheng-Hung Shih , Yang-Kuo Kuo
IPC: C01B21/082
Abstract: A method utilizes easily obtained carbon as carbon source for sintering, followed by high energy ball milling process with planetary ball mill for high energy homogenous mixing of the carbon source, solvent and nano-level silicon dioxide powder, along with a high energy ball milling process repeatedly performed using different sized ball mill beads, so as to formulate a spray granulation slurry with the optimal viscosity, to complete the process of micronization of carbon source evenly encapsulated by silicon dioxide powders. The optimal ratio of C/SiO2 is 1-2.5 to produce a spherical silicon dioxide powder (40-50 μm) evenly encapsulated by the carbon source. The powder is then subjected to a high temperature (1450□) sintering process under nitrogen gas. Lastly, the sintered silicon nitride powder is subjected to homogenizing carbon removal process in a rotational high temperature furnace to complete the fabricating process.
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公开(公告)号:US10365442B2
公开(公告)日:2019-07-30
申请号:US16112842
申请日:2018-08-27
Inventor: Chiang-Hsin Lin , Wei-Ting Lin , Jian-Hung Lin , Po-Tse Tai , Wei-Chung Yen
IPC: G02B6/36
Abstract: An optical housing for high power fiber components includes an upper cover, a lower base, and two isolating members. The upper cover includes a light-reflecting portion for containing the optical fiber and receiving and reflecting the light therefrom. The lower base is connected with the upper cover and includes a light-receiving portion which corresponds to the light-reflecting portion in position and surrounds the optical fiber, thereby receives the light from the light-reflecting portion. The isolating members are disposed between the upper cover and the lower base and located on two sides of the optical housing to prevent the leakage of light from the optical fiber.
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公开(公告)号:US10355354B2
公开(公告)日:2019-07-16
申请号:US15641396
申请日:2017-07-05
Inventor: Jiin-An Guu , Ching-Chyuan Lin , Chien-Te Yu
Abstract: Array antenna communication system is introduced, which is a communication system that receives a location signal generated by a mobile communication apparatus and accordingly transfers a communication signal with a corresponding phase direction. The system includes an array antenna module and a beamforming circuit. The array antenna module includes a plurality of antenna units arranged in array form. The beamforming circuit is used for receiving a plurality of location signals, a plurality of phase control signals, and transferring a plurality of output signals, wherein the beamforming circuit receives the location signal and accordingly generates the corresponding control signal, and controls the corresponding antenna unit of the array antenna module, so as to enable the antenna unit to move to a position corresponding to a phase and to transfer the plurality of output signals, thereby achieving communication signal enhancement.
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134.
公开(公告)号:US10227363B2
公开(公告)日:2019-03-12
申请号:US15407602
申请日:2017-01-17
Inventor: Chao-Fan Liang , Chih-Min Hsieh , Jui-Chang Tseng , Qi-Qian Tan
Abstract: A polymer with alternating phenylene silicon and siloxane structure and a method of producing a precursor of the same are introduced to develop an autonomous synthesis process for para-phenylene disilanol monomer compounds and design a technique of purifying the polymer with alternating phenylene silicon and siloxane structure easily, so as to enable mass production of the polymer with alternating phenylene silicon and siloxane structure.
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公开(公告)号:US10189133B2
公开(公告)日:2019-01-29
申请号:US15388496
申请日:2016-12-22
Inventor: Yi-Yuh Hwang , Wei-Guo Chang , Li-Chung Liu
IPC: B23Q11/00 , B23Q17/24 , G01B11/00 , G05B19/402
Abstract: A measurement, calibration and compensation system for machine tool includes a first positioning base; two first speckle image sensors for sensing speckle positions of an object holding unit at a first XY plane and a first XZ plane of the first positioning base before and after the machine tool is started for machining; a second positioning base; two second speckle image sensors for sensing speckle positions of a cutter holding unit at a second XY plane and a second YZ plane of the second positioning base before and after the machine tool is started for machining. Thus, the thermal expansion at all axes of the machine tool can be measured in a simplified and low-cost way, and the absolute positioning coordinates of all axes of the machine tool can be calibrated in real time to avoid reduced positioning accuracy due to the thermal expansion of the multi-axis machine tool.
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公开(公告)号:US10097136B1
公开(公告)日:2018-10-09
申请号:US15846854
申请日:2017-12-19
Inventor: Hsiao-Chin Chen , Yen-Ting Chiang , Chien-Te Yu
Abstract: A transformer feed-back quadrature voltage controlled oscillator (QVCO) includes a first VCO; a second VCO; and a dynamic phase error correction circuit, having a plurality of coupling capacitors connected between the first and second VCOs, wherein the capacitances of the coupling capacitors are varied according to a digital control signal to correct a phase error of local oscillating (LO) signals of quadrature phases output by the first and second VCOs.
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公开(公告)号:US10063327B2
公开(公告)日:2018-08-28
申请号:US15384470
申请日:2016-12-20
Inventor: Chu-Hao Cheng , Po-Chun Chang , Liang-Ju Huang
CPC classification number: H04B17/12 , H04B17/318 , H04L27/20 , H04L27/36
Abstract: System and method for array antenna failure detection and antenna self-correction are introduced. In the array antenna failure detection and antenna self-correction system, a signal analyzer is employed to perform gain analysis so as to perform gain attenuation/compensation, and a DC offset generator is employed to generate a set of known offset amounts which are added to signals, so that, at the receiving end, a phase offset amount can be derived based on comparisons with the original signal, and antenna correction can then be performed accordingly. In this way, computational complexity of the system can be reduced, and the speed of antenna correction can be increased.
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公开(公告)号:US10063070B2
公开(公告)日:2018-08-28
申请号:US15361321
申请日:2016-11-25
Inventor: Wei-Min Hsiao , Kuo-Kuang Jen , Jeng-Chyan Lin , Hsun-Ming Hsien , Fu-Min Fang
CPC classification number: H02J7/0019 , G01R19/16542 , G01R31/396 , H01M10/425 , H01M10/441 , H01M10/482 , H01M2010/4271 , H02J7/0026 , H02J7/35
Abstract: A battery active-balancing system comprises an external balancing power; a buck converter having a first side-winding and a second side-winding induced thereby, the first side-winding and the second side-winding each having a positive terminal and a negative terminal; a battery comprising series-connected cell-units each having a positive terminal and a negative terminal; a cell voltage-sensing unit coupled to the battery to sense a voltage of each cell unit of the series-connected cell-units; a main switch component coupled to the first side-winding and the battery in an ON state, or coupled to the first side-winding and the external balancing power in an OFF state; a cell-switch unit comprising first cell-switch components and second cell-switch components, wherein each of the first cell-switch components is coupled to the positive terminal of corresponding one cell-unit and the positive terminal of the second side-winding, and each of the second cell-switch components is coupled to the negative terminal of corresponding one cell-unit and the negative terminal of the second side-winding; and a microcontroller for controlling the main switch component and the cell-switch unit, and determining a voltage level fed back from the cell voltage-sensing unit.
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公开(公告)号:US09983080B2
公开(公告)日:2018-05-29
申请号:US14955073
申请日:2015-12-01
Inventor: Yih-Hsing Wang , Wen-Chueh Pan , Ming-June Lin , Jen-Chieh Li , Tien-Fu Wu , Tsan-Tung Chen
CPC classification number: G01L11/006 , G01L9/007 , G01L9/0076 , G01L19/04 , G01L27/002
Abstract: A high-temperature gas pressure measuring method includes a pressure measuring gas housing dividing step for dividing a pressure measuring gas housing into a pressure measuring room and a pressure referring room by a metal diaphragm; a gas introducing step for introducing high temperature gas into the pressure measuring room and introducing a reference pressure gas into the pressure referring room; a displacement measuring step for measuring a displacement of the metal diaphragm, wherein the displacement is caused by pressure difference between the two rooms in pressure measuring gas housing; and a pressure determining step for measuring the pressure of a high-temperature and/or corrosive to-measure pressure gas. The method dispenses with any corrosion-resistant and heat-resistant pressure sensing component and thus cuts costs.
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140.
公开(公告)号:US09958245B1
公开(公告)日:2018-05-01
申请号:US15603643
申请日:2017-05-24
Inventor: Chia-Nan Shih , Hong-Chih Yang , Lin-Chien Tsai , Po-Chang Huang , Guei-Jang Huang , Min-Han Chiu
CPC classification number: F42B33/062 , F41B9/0046
Abstract: A liquid disruptor device and a method of manufacturing the same are introduced. The liquid disruptor device comprises a front casing, a liquid seal film, a rear casing, a plane wave generator and a counter-impact cover. The plane wave generator generates a plane blast wave which compresses a liquid contained in the front casing and a liner to not only focus blast energy of the liquid but also allow the liquid to form a liquid knife current for destroying explosives. Hence, the liquid disruptor device displays higher efficiency per unit weight of explosives when detonation thereof occurs at multiple points. Further, a liquid disruptor device module inclusive of at least two liquid disruptor devices combined to assume a geometric shape is introduced.
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