Patents by Inventor Chen Yi-Chang
Chen Yi-Chang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240131538Abstract: An annular airflow regulating apparatus includes a cup-shaped element and an adjustment element. The cup-shaped element has a bowl and a bottom, integrated to form a first chamber. The bottom has a tapered channel parallel to an axis and penetrating through the bottom. A ring-shaped groove is disposed between the tapered channel and the bottom. The ring-shaped groove has an annular plane perpendicular to the axis. The adjustment element, having a tapered portion and second holes, is movably disposed in the cup-shaped element. The tapered portion protrudes into the tapered channel A tapered annular gap is formed between the tapered portion and the tapered channel. When the adjustment element is moved with respect to the cup-shaped element, a width of the tapered annular gap is varied, and thereupon a flow rate and velocity of the process gas would be varied accordingly.Type: ApplicationFiled: December 8, 2022Publication date: April 25, 2024Inventors: CHEN-CHUNG DU, Ming-Jyh Chang, Chang-Yi Chen, Ming-Hau Tsai, Ko-Chieh chao, Yi-Wei Lin
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Patent number: 11940338Abstract: An electric-carrier power-supply device for use in an electric carrier is provided. The electric-carrier power-supply device includes a piezoresistive sensor, a battery interface, and a power-management unit (PMU). The battery interface is connected to an on-board battery and receives power from the on-board battery. The PMU controls power to a motor of the electric carrier. A piezoresistive strain gage is disposed between a contact area between the battery interface and the on-board battery, and is used to detect a pressure value of the contact area. The piezoresistive sensor receives the pressure value detected by the piezoresistive strain gage, and converts the pressure value into a resistance value. The piezoresistive sensor determines whether the resistance value is within a safe resistance value range to generate a resistance-value-determination signal. The PMU determines whether to provide power to the motor is according to the resistance-value-determination signal.Type: GrantFiled: August 25, 2022Date of Patent: March 26, 2024Assignee: WISTRON CORP.Inventors: Chen Yi Liang, Yung Chen Chang
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Publication number: 20240099154Abstract: A magnetoresistive random access memory (MRAM) device includes a first array region and a second array region on a substrate, a first magnetic tunneling junction (MTJ) on the first array region, a first top electrode on the first MTJ, a second MTJ on the second array region, and a second top electrode on the second MTJ. Preferably, the first top electrode and the second top electrode include different nitrogen to titanium (N/Ti) ratios.Type: ApplicationFiled: November 21, 2023Publication date: March 21, 2024Applicant: UNITED MICROELECTRONICS CORPInventors: Hui-Lin Wang, Si-Han Tsai, Dong-Ming Wu, Chen-Yi Weng, Ching-Hua Hsu, Ju-Chun Fan, Yi-Yu Lin, Che-Wei Chang, Po-Kai Hsu, Jing-Yin Jhang
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Patent number: 11916018Abstract: A connection structure of a semiconductor device is provided in the present invention. The connection structure includes an interlayer dielectric, a top metal structure, and a passivation layer. The interlayer dielectric is disposed on a substrate. The top metal structure is disposed on the interlayer dielectric. The top metal structure includes a bottom portion and a top portion disposed on the bottom portion. The bottom portion includes a first sidewall, and the top portion includes a second sidewall. A slope of the first sidewall is larger than a slope of the second sidewall. The passivation layer is conformally disposed on the second sidewall, the first sidewall, and a top surface of the interlayer dielectric.Type: GrantFiled: March 4, 2021Date of Patent: February 27, 2024Assignee: UNITED MICROELECTRONICS CORP.Inventors: Chen-Yi Weng, Shih-Che Huang, Ching-Li Yang, Chih-Sheng Chang
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Patent number: 11917923Abstract: A magnetoresistive random access memory (MRAM) structure, including a substrate and multiple MRAM cells on the substrate, wherein the MRAM cells are arranged in a memory region adjacent to a logic region. An ultra low-k (ULK) layer covers the MRAM cells, wherein the surface portion of ultra low-k layer is doped with fluorine, and dents are formed on the surface of ultra low-k layer at the boundaries between the memory region and the logic region.Type: GrantFiled: April 28, 2021Date of Patent: February 27, 2024Assignee: UNITED MICROELECTRONICS CORP.Inventors: Hui-Lin Wang, Ching-Hua Hsu, Si-Han Tsai, Shun-Yu Huang, Chen-Yi Weng, Ju-Chun Fan, Che-Wei Chang, Yi-Yu Lin, Po-Kai Hsu, Jing-Yin Jhang, Ya-Jyuan Hung
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Patent number: 11862842Abstract: Provided is a display apparatus including a display panel, multiple antenna electrodes, a dummy electrode, and multiple feed lines. The display panel has a display area. The antenna electrodes are disposed on the display panel and overlap the display area. The dummy electrode is disposed around the antenna electrodes and overlaps the display area. The dummy electrode is electrically separated from the antenna electrodes, and has multiple dummy wire segments whose extension directions intersect each other. The dummy wire segments have multiple breaks. The feed lines are respectively electrically connected to the antenna electrodes. An antenna module is also provided.Type: GrantFiled: June 13, 2022Date of Patent: January 2, 2024Assignee: Au Optronics CorporationInventors: Chen-Yi Chang, Chao-Wei Yeh, Yu-Ling Yeh, Pei-Heng Li, Chao-Yang Chou, Hsi-Tseng Chou
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Publication number: 20230223674Abstract: Provided is a display apparatus including a display panel, multiple antenna electrodes, a dummy electrode, and multiple feed lines. The display panel has a display area. The antenna electrodes are disposed on the display panel and overlap the display area. The dummy electrode is disposed around the antenna electrodes and overlaps the display area. The dummy electrode is electrically separated from the antenna electrodes, and has multiple dummy wire segments whose extension directions intersect each other. The dummy wire segments have multiple breaks. The feed lines are respectively electrically connected to the antenna electrodes. An antenna module is also provided.Type: ApplicationFiled: June 13, 2022Publication date: July 13, 2023Applicant: Au Optronics CorporationInventors: Chen-Yi Chang, Chao-Wei Yeh, Yu-Ling Yeh, Pei-Heng Li, Chao-Yang Chou, Hsi-Tseng Chou
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Publication number: 20220328409Abstract: In some embodiments, a low-resistance path between an active cell and a power supply layer in an integrated circuit device includes at least one layer of a plurality of conductive lines commonly connected to at least one conductive line through a plurality of respective conductive pillars, the at least one conductive line being in the power supply layer or intervening the active cell and the power supply layer. In some embodiments, the integrated circuit device includes a conductive layer that includes the plurality of conductive lines and additional conductive portions, where the plurality of conductive lines are isolated from the additional conductive portions.Type: ApplicationFiled: November 30, 2021Publication date: October 13, 2022Inventors: Ho-Che Yu, Fong-yuan Chang, Po-Hsiang Huang, Ching-Yi Lin, Chen-Yi Chang
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Patent number: 10496779Abstract: Aspects of the invention relate to yield analysis techniques for generating root cause candidates for yield analysis. With various implementations of the invention, points of interest are first identified in a layout design. Next, regions of interest are determined for the identified points of interest. Next, one or more properties are extracted from the regions of interest. Based at least on the one or more properties, diagnosis reports of failing devices fabricated according to the layout design are analyzed to identify probable root causes.Type: GrantFiled: September 12, 2016Date of Patent: December 3, 2019Assignee: Mentor Graphics CorporationInventors: Robert Brady Benware, Wu-Tung Cheng, Christopher Schuermyer, Jonathan J. Muirhead, Chen-Yi Chang
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Publication number: 20170103158Abstract: Aspects of the invention relate to yield analysis techniques for generating root cause candidates for yield analysis. With various implementations of the invention, points of interest are first identified in a layout design. Next, regions of interest are determined for the identified points of interest. Next, one or more properties are extracted from the regions of interest. Based at least on the one or more properties, diagnosis reports of failing devices fabricated according to the layout design are analyzed to identify probable root causes.Type: ApplicationFiled: September 12, 2016Publication date: April 13, 2017Applicant: Mentor Graphics CorporationInventors: Robert Brady Benware, Wu-Tung Cheng, Christopher Schuermyer, Jonathan J. Muirhead, Chen-Yi Chang
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Patent number: 9565628Abstract: Apparatus and method are provided for small cell energy saving. In one novel aspect, switch-off-request is broadcasted by the small cell detecting the low-load condition. The small cells upon receiving the switch-off-request message enter the frozen state, which prevents the small cells from switching off. In another novel aspect, the small cell in the low-load condition request measurement reports from the UEs. The UEs replies with the measurement-reports message, which includes the detected neighboring IDs and the UE's traffic load. The low-load small cell includes the information derived from the measurement-reports in the switch-off-request message. In another novel aspect, the small cell broadcasts the switch-on-request message. Upon receiving switch-on-acknowledge messages from switched-off neighboring small cells, the small cell selects one or more target cells to send the cell-activation-request.Type: GrantFiled: July 2, 2014Date of Patent: February 7, 2017Assignee: MEDIATEK INC.Inventors: Yi-Han Chiang, Yu-Chun Chen, Kun-Lin Ho, Po-Han Huang, Po-Han Chiang, Chen-Yi Chang, Wan-Jiun Liao, Shiang-Jiun Lin
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Patent number: 9443051Abstract: Aspects of the invention relate to yield analysis techniques for generating root cause candidates for yield analysis. With various implementations of the invention, points of interest are first identified in a layout design. Next, regions of interest are determined for the identified points of interest. Next, one or more properties are extracted from the regions of interest. Based at least on the one or more properties, diagnosis reports of failing devices fabricated according to the layout design are analyzed to identify probable root causes.Type: GrantFiled: August 22, 2013Date of Patent: September 13, 2016Assignee: Mentor Graphics CorporationInventors: Robert Brady Benware, Wu-Tung Cheng, Christopher Schuermyer, Jonathan J Muirhead, Chen-Yi Chang
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Publication number: 20150209292Abstract: Provided is a controlled release formulation and a preparation process thereof. Also provided is a method for treating Attention-Deficit Disorder (ADD) or Attention-Deficit Hyperactivity Disorder (ADHD).Type: ApplicationFiled: January 27, 2015Publication date: July 30, 2015Inventors: Chaur-Ming Jan, Shao-Ming Lee, Chen-Yi Chang
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Publication number: 20150009877Abstract: Apparatus and method are provided for small cell energy saving. In one novel aspect, switch-off-request is broadcasted by the small cell detecting the low-load condition. The small cells upon receiving the switch-off-request message enter the frozen state, which prevents the small cells from switching off. In another novel aspect, the small cell in the low-load condition request measurement reports from the UEs. The UEs replies with the measurement-reports message, which includes the detected neighboring IDs and the UE's traffic load. The low-load small cell includes the information derived from the measurement-reports in the switch-off-request message. In another novel aspect, the small cell broadcasts the switch-on-request message. Upon receiving switch-on-acknowledge messages from switched-off neighboring small cells, the small cell selects one or more target cells to send the cell-activation-request.Type: ApplicationFiled: July 2, 2014Publication date: January 8, 2015Inventors: Yi-Han Chiang, Yu-Chun Chen, Kun-Lin Ho, Po-Han Huang, Po-Han Chiang, Chen-Yi Chang, Wan-Jiun Liao, Shiang-Jiun Lin
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Chip-to-symbol receiver despreader architectures and methods for despreading spread spectrum signals
Patent number: 7366227Abstract: In a spread spectrum system, methods and despreader architectures for despreading the received spreaded codes with the use of a single correlator and a single correlation code is provided. Before despreading the incoming received spreaded codes, a single correlation code is generated using a symbol from a set of symbols that has been mapped into a set of differential encoded PN codes. Despreading output samples for each received spreaded code are obtained by correlating the received spreaded code with this single correlation code. Correlation is accomplished by multiplying each received sample of the received spreaded codes with the correlation code samples and accumulating the products of this multiplication. After correlation, the index for the maximum or minimum peak of the despreading output samples for each code is identified. This index can then be mapped into a symbol corresponding to the transmitted information.Type: GrantFiled: June 23, 2004Date of Patent: April 29, 2008Assignee: Hyperband Communications, Inc.Inventors: Syang-Myau Hwang, Yiping Fan, Chen-Yi Chang, Hongyu Li, Chieh-Yuan Chao -
Patent number: 7178741Abstract: Disclosed is a micro droplet generator which comprises a lower space for containing a control panel, and an upper chamber for containing fluid medicine and including an nebulized area formed on a joining portion of the space and thereof. On the nebulized area there are provided an outer nozzle plate including tapered apertures and a piezoelectric element electrically coupled to the control panel. Activating the piezoelectric element will vibrate it to sufficiently mix the liquid medicine for developing fluid cavitation in the nebulized area, forms a stream of droplets from small particles of the fluid medicine and ejects the same therefrom, condenses the large particles of the fluid medicine due to collision therebetween, and drops the condensed liquid into the fluid medicine. Also, any malfunctioned component can be replaced individually.Type: GrantFiled: August 11, 2004Date of Patent: February 20, 2007Assignee: Industrial Technology Research InstituteInventors: Shen Sheng-Chih, Wang Yu-Ran, Liou Shun-Nan, Yeh Chien-Shien, Chen Yi-Chang, Pan I-Kai, Lee Chung-Jui, Tsai Ming-Jye
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Publication number: 20060032941Abstract: Disclosed is a micro droplet generator which comprises a lower space for containing a control panel, and an upper chamber for containing fluid medicine and including an nebulized area formed on a joining portion of the space and thereof. On the nebulized area there are provided an outer nozzle plate including tapered apertures and a piezoelectric element electrically coupled to the control panel. Activating the piezoelectric element will vibrate it to sufficiently mix the liquid medicine for developing fluid cavitation in the nebulized area, forms a stream of droplets from small particles of the fluid medicine and ejects the same therefrom, condenses the large particles of the fluid medicine due to collision therebetween, and drops the condensed liquid into the fluid medicine. Also, any malfunctioned component can be replaced individually.Type: ApplicationFiled: August 11, 2004Publication date: February 16, 2006Inventors: Shen Sheng-Chih, Wang Yu-Ran, Liou Shun-Nan, Yeh Chien-Shien, Chen Yi-Chang, Pan I-Kai, Lee Chung-Jui, Tsai Ming-Jye
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Publication number: 20050105597Abstract: In a spread spectrum system, methods and despreader architectures for despreading the received spreaded codes with the use of a single correlator and a single correlation code is provided. Before despreading the incoming received spreaded codes, a single correlation code is generated using a symbol from a set of symbols that has been mapped into a set of differential encoded PN codes. Despreading output samples for each received spreaded code are obtained by correlating the received spreaded code with this single correlation code. Correlation is accomplished by multiplying each received sample of the received spreaded codes with the correlation code samples and accumulating the products of this multiplication. After correlation, the index for the maximum or minimum peak of the despreading output samples for each code is identified. This index can then be mapped into a symbol corresponding to the transmitted information.Type: ApplicationFiled: June 23, 2004Publication date: May 19, 2005Inventors: Syang-Myau Hwang, Yiping Fan, Chen-Yi Chang, Hongyu Li, Chieh-Yuan Chao
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Patent number: 5712871Abstract: A BPSK-MPP-DS-CDMA system is devised based on an M-ary pulse position modulated spreading-sequence signal. Under same bandwidth, same amount of energy used for one decision, and same bit error rate comparison conditions, if the number of users is less than the number N.sub.u of available sequence signals in the spreading sequence signal set {S.sub.p (t)} used in the BPSK-MPP-DS-CDMA system, the multiple access capacities of the BPSK-MPP-DS-CDMA system according to the present invention for M=4, M=8, and M=16 are improved by factors of at least 1.335, 1.66, and 1.65 over conventional BPSK-DS-CDMA systems. On the other hand, if the number of users reaches N.sub.u, the multiple access capacity can not be increased futher, however, the bit error rate of the system still be reduced. Furthermore, significant amount of transmission energy is saved.Type: GrantFiled: July 6, 1995Date of Patent: January 27, 1998Inventor: Chen-Yi Chang
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Patent number: 5446757Abstract: A BPSK-MPP-DS-CDMA system is devised using a pulse position modulated direct sequence technique. Under the same bandwidth, same energy used for one decision, and same bit error rate conditions, if the number of users is less than the period N.sub.cp of the pseudorandom sequence signal PN.sub.p.sup.i (t) used in the BPSK-MPP-DS-CDMA system, the multiple access capacities of the binary (M=2), ternary (M=3), quaternary (M=4), and pentary (M=5) BPSK-MPP-DS-CDMA systems according to the present invention are respectively at least 2, 5.34, 13.28, and 26.4 times greater than that of the conventional BPSK-DS-CDMA systems. On the other hand, if the number of users attains N.sub.cp, the multiple access capacity can not increase any more, however, the bit error rate of the system will be reduced. Furthermore, (M-1)/M transmitting energy is saved.Type: GrantFiled: June 14, 1993Date of Patent: August 29, 1995Inventor: Chen-Yi Chang