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公开(公告)号:US20190048137A1
公开(公告)日:2019-02-14
申请号:US15826861
申请日:2017-11-30
Inventor: WEN-CHIUNG SU , CHING-HSUAN LIN , WEI-FENG HSIAO , HAN-YA LIN
CPC classification number: C08G65/48 , C08G59/4071 , C08G65/4012 , C08G2650/02 , C08G2650/40 , C08G2650/64 , H05K1/0326 , H05K1/0353 , H05K2201/012
Abstract: A low-k, non-flammable dicyclopentdiene (DCPD)-derived polyether and a method of producing the same are introduced. Incorporation of a phosphorus group and a DCPD derivative into a low-k, non-flammable dicyclopentdiene (DCPD)-derived polyether enable the DCPD-derived polyether to not only serve as an epoxy resin curing agent but also cure itself such that the cured product not only features satisfactory thermal properties and low-k characteristics but is also non-flammable.
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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:US20180294616A1
公开(公告)日:2018-10-11
申请号:US15479652
申请日:2017-04-05
Inventor: JIAN-HUNG LIN , PO-TSE TAI , WEI-CHUNG YEN
Abstract: A high-power fiber cladding power stripper comprises a core unit, a cladding layer, a grating structure, and a jacket. The core unit is an optical conductive material. The cladding layer is disposed outside the core unit, wherein a refractive index of the cladding layer is lower than that of the core unit. The grating structure, disposed outside the cladding layer, is for producing diffraction effects. The jacket surrounds and protects the core unit, the cladding layer, and the grating structure. Hence, in a high-power fiber laser system, the cladding power stripper can be utilized for removing residual pump energy before the laser light entering an output collimator.
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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:US20180258844A1
公开(公告)日:2018-09-13
申请号:US15978081
申请日:2018-05-11
Inventor: DUN-ZEN JENG , MING-CHUN HSIEH , CHIH-CHUAN LEE , TING-HUA CHIEH
CPC classification number: F02B53/04 , F01C1/22 , F01C20/28 , F01C21/186 , F02B53/02 , F02B55/02 , F02B55/08 , F04C2240/806 , Y02T10/17
Abstract: An intake/outlet pipe optimization method for a rotary engine, comprising the steps of: (A) providing a rotary engine; (B) providing a simulation software package, to perform a series of simulations for the rotary engine according to different combinations of a pipe length, a pipe diameter, a pipe shape and a pipe angle, to determine an optimal combination of the pipe length, the pipe diameter, the pipe shape, and pipe angle, to obtain an optimal power output for the rotary engine; and (C) performing tests for the rotary engine, by utilizing the optimal combination of the pipe length, the pipe diameter, the pipe shape, and pipe angle obtained in step (B), to obtain a test optimized power output for the rotary engine.
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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:US20180166977A1
公开(公告)日:2018-06-14
申请号:US15375209
申请日:2016-12-12
Inventor: CHI-SHENG WU , GWO-HUEI YOU , HSUANG-CHANG CHIANG , TSANG-LI TAI
CPC classification number: H02M1/42 , H02M1/08 , H02M1/4208 , H02M1/4258 , H02M1/44 , H02M3/33546 , H02M2001/0009 , H02M2001/0067 , H02M2001/0074 , H02M2001/0077
Abstract: A single-phase bridgeless insulated power factor adjustment circuit includes an EMI filter module, low-frequency switching diode module, two switches and two insulated voltage transformation modules. The EMI filter module is coupled to an AC power. The low-frequency switching diode module is coupled to the EMI filter module. The two switches are coupled to the low-frequency switching diode module. The two insulated voltage transformation modules are coupled to one of the two switches. With the low-frequency switching diode module being in first ON state, one of the two switches turns on, and one of the two insulated voltage transformation modules turns on. With the low-frequency switching diode module being in second ON state, the other switch turns on, and the other insulated voltage transformation module turns on. Hence, the circuit is unlikely to fail, but features simple circuitry, incurs low costs, be compact, and achieves high conversion efficiency.
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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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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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