Patents by Inventor Yu-Chi Lee
Yu-Chi Lee 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: 20240158309Abstract: The invention provides a material surface treatment equipment, which is applied to a material substrate. The material surface treatment equipment includes a surface treatment device and at least one waveguide device. The surface treatment device is used to carry the material substrate to perform a surface treatment process. Each waveguide device is used for introducing electromagnetic waves to the material substrate to assist in performing the surface treatment process. Through the introduction of electromagnetic waves, the surface treatment process of the material substrate is easy to perform and can achieve the strengthening effect.Type: ApplicationFiled: December 15, 2022Publication date: May 16, 2024Inventors: TIEN-HSI LEE, JUN-HUANG WU, YU-SHENG CHIOU, SHU-CHENG LI, WEI-CHI HUANG, HSIN CHEN
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Publication number: 20240155758Abstract: An electronic device is provided. The electronic device includes a first dielectric layer, an electronic element, an encapsulant, and a second dielectric layer. The first dielectric layer has a first coefficient of thermal expansion (CTE). The electronic element is disposed over the first dielectric layer. The encapsulant encapsulates the electronic element and has a second CTE. The second dielectric layer is disposed over the encapsulant and having a third CTE. The second CTE ranges between the first CTE and the third CTE.Type: ApplicationFiled: November 4, 2022Publication date: May 9, 2024Applicant: Advanced Semiconductor Engineering, Inc.Inventors: Chien Lin CHANG CHIEN, Yuan-Chun TAI, Yu Hsin CHANG CHIEN, Chiu-Wen LEE, Chang Chi LEE
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Publication number: 20240146205Abstract: A flyback power converter includes a power transformer, a first lossless voltage conversion circuit, a first low-dropout linear regulator and a secondary side power supply circuit. The first low-dropout linear regulator (LDO) generates a first operation voltage as power supply for being supplied to a sub-operation circuit. The secondary side power supply circuit includes a second lossless voltage conversion circuit and a second LDO. The second LDO generates a second operation voltage. The first operation voltage and the second operation voltage are shunted to a common node. When a first lossless conversion voltage is greater than a first threshold voltage, the second LDO is enabled to generate the second operation voltage to replace the first operation voltage as power supply supplied to the sub-operation circuit; wherein the second lossless conversion voltage is lower than the first lossless switching voltage.Type: ApplicationFiled: September 23, 2023Publication date: May 2, 2024Inventors: Shin-Li Lin, He-Yi Shu, Shih-Jen Yang, Ta-Yung Yang, Yi-Min Shiu, Chih-Ching Lee, Yu-Chieh Hsieh, Chao-Chi Chen
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Publication number: 20240102860Abstract: An apparatus includes a six-axis correction stage, an auto-collimation measurement device, a light splitter, a telecentric image measurement device, and a controller. The six-axis correction stage carries a device under test; the auto-collimation measurement device is arranged above the six-axis correction stage along a measurement optical axis; the light splitter is arranged on the measurement optical axis and is interposed between the six-axis correction stage and the auto-collimation measurement device. A method controls the six-axis correction stage to correct rotation errors in at least two degrees of freedom of the device under test according to a measurement result of the auto-collimation measurement device, and controls the six-axis correction stage to correct translation and yaw errors in at least three degrees of freedom of the device under test according to a measurement result of the telecentric image measurement device by means of the controller.Type: ApplicationFiled: September 5, 2023Publication date: March 28, 2024Inventors: Cheng Chih HSIEH, Tien Chi WU, Ming-Long LEE, Yu-Hsuan LIN, Tsung-I LIN, Chien-Hao MA
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Publication number: 20240102194Abstract: A plating system and a method thereof are disclosed. The plating system performs a N-stage plating drilling filling process in which a M-th stage plating drilling filling process with a M-th current density is performed on a hole of a substrate for a M-th plating time to form a M-th plating layer on the to-be-plated layer, wherein N is a positive integer equal to or greater than 3, and M is a positive integer positive integer in a range of 1 to N. Therefore, the technical effect of providing a higher drilling filling rate than conventional plating filling technology under a condition that a total thickness of plating layers is fixed can be achieved.Type: ApplicationFiled: August 7, 2023Publication date: March 28, 2024Inventors: Cheng-EN HO, Yu-Lian CHEN, Cheng-Chi WANG, Yu-Jen CHANG, Yung-Sheng LU, Cheng-Yu LEE, Yu-Ming LIN
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Patent number: 11942750Abstract: A laser inspection system is provided. A laser source emits a laser with a first spectrum and the laser is transmitted by a first optical fiber. A gain optical fiber doped with special ions is connected to the first optical fiber, and a light detector is provided around the gain optical fiber. When the laser with the first spectrum passes through the gain optical fiber, the gain optical fiber absorbs part of the energy level of the laser with the first spectrum, so that the laser with the first spectrum is converted to generate light with a second spectrum based on the frequency conversion phenomenon. The light detector detects the intensity of the light with the second spectrum, so that the power of the laser source can be obtained.Type: GrantFiled: November 23, 2020Date of Patent: March 26, 2024Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Yi-Chi Lee, Hsin-Chia Su, Shih-Ting Lin, Yu-Cheng Song, Fu-Shun Ho, Chih-Chun Chen
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Patent number: 11914429Abstract: An electronic device includes a host, a display, a sliding plate, and a keyboard. The host has an operating surface. The display is pivoted to the host. The sliding plate is slidably disposed in the host, where the display is mechanically coupled to the sliding plate, and the sliding plate includes a plat portion and a recess portion that are arranged side by side. The keyboard is integrated to the host. The keyboard includes a key structure, where the key structure includes a key cap and a reciprocating element, and the key cap is exposed from the operating surface of the host. The reciprocating element is disposed between the key cap and the sliding plate and has a first end connected to the key cap and a second end contacting the sliding plate. The second end is located on a sliding path of the plat portion and the recess portion.Type: GrantFiled: March 9, 2023Date of Patent: February 27, 2024Assignee: Acer IncorporatedInventors: Hung-Chi Chen, Shun-Bin Chen, Huei-Ting Chuang, Yen-Chieh Chiu, Yu-Wen Lin, Yen-Chou Chueh, Po-Yi Lee
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Patent number: 10327700Abstract: An intelligent insole is provided. The intelligent insole includes an insole body, a pressure sensor, a temperature sensor, a humidity sensor and a signal collector. The pressure sensor, the temperature sensor and the humidity sensor are formed on the surface of the insole body, and the above sensors and the insole body are manufactured via the same 3D printing process. The pressure sensor senses the pressure signal from the insole body in contact with the foot. The temperature sensor and the humidity sensor respectively sense the temperature signal and the humidity signal of the insole body. The signal collector is respectively electrically connected to the pressure sensor, the temperature sensor and the humidity sensor to receive the pressure signal, the temperature signal and the humidity signal and then transmit the signals to a signal receiver via wireless transmission.Type: GrantFiled: June 29, 2016Date of Patent: June 25, 2019Assignee: National Tsing Hua UniversityInventors: Yu-Chi Lee, Mao-Jiun Wang, Chun Zhang, Hsu-Pin Wang
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Publication number: 20170238870Abstract: An intelligent insole is provided. The intelligent insole includes an insole body, a pressure sensor, a temperature sensor, a humidity sensor and a signal collector. The pressure sensor, the temperature sensor and the humidity sensor are formed on the surface of the insole body, and the above sensors and the insole body are manufactured via the same 3D printing process. The pressure sensor senses the pressure signal from the insole body in contact with the foot. The temperature sensor and the humidity sensor respectively sense the temperature signal and the humidity signal of the insole body. The signal collector is respectively electrically connected to the pressure sensor, the temperature sensor and the humidity sensor to receive the pressure signal, the temperature signal and the humidity signal and then transmit the signals to a signal receiver via wireless transmission.Type: ApplicationFiled: June 29, 2016Publication date: August 24, 2017Inventors: YU-CHI LEE, Mao-Jiun Wang, CHUN ZHANG, HSU-PIN WANG
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Patent number: 8149065Abstract: A phase-locked loop that supports a large frequency drift capability, yet maintains a low Kvco, and does not introduce noise or discontinuities in the frequency of the generated phase-locked loop output signal. The phase-locked loop may include a VCO with an LC tank circuit, the capacitance of which may be adjusted in incremental units. By gradually adjusting a control signal applied to a selected VCO LC tank circuit frequency adjustment control line, e.g., in a continuous ramped function, or time-averaged ramped function, from LOW-to-HIGH or from HIGH-to-LOW, over a period of time that is greater than the response time of the phase-locked loop, a frequency range supported by the VCO may be shifted to either a higher frequency range or a lower frequency range, as needed, to accommodate environmentally induced frequency drift in the VCO, without introducing noise or discontinuities in the frequency of the generated phase-locked loop output signal.Type: GrantFiled: April 18, 2011Date of Patent: April 3, 2012Assignee: Marvell International Ltd.Inventors: Randy Tsang, Yu-chi Lee, David Cousinard
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Patent number: 8144201Abstract: This invention discloses a portable computer capable of performing a digital photo frame function under a main-power-off state. The portable computer includes a base, a display device, an image capturing device, an image capturing switch, and a processor. The display device includes a frame pivotally connected to the base. The image capturing device and the image capturing switch are disposed at the frame. The image capturing switch is operated to output a first request signal to the processor. In response to the first request signal, the processor drive the image capturing device to capture a first image under the main-power-off state, and the processor instantly displays the first image on the display device under the main-power-off state.Type: GrantFiled: September 15, 2009Date of Patent: March 27, 2012Assignee: Pegatron CorporationInventors: Yu-chi Lee, Ching-sung Yeh
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Patent number: 7940129Abstract: A phase-locked loop that supports a large frequency drift capability, yet maintains a low Kvco, and does not introduce noise or discontinuities in the frequency of the generated phase-locked loop output signal. The phase-locked loop may include a VCO with an LC tank circuit, the capacitance of which may be adjusted in incremental units. By gradually adjusting a control signal applied to a selected VCO LC tank circuit frequency adjustment control line, e.g., in a continuous ramped function, or time-averaged ramped function, from LOW-to-HIGH or from HIGH-to-LOW, over a period of time that is greater than the response time of the phase-locked loop, a frequency range supported by the VCO may be shifted to either a higher frequency range or a lower frequency range, as needed, to accommodate environmentally induced frequency drift in the VCO, without introducing noise or discontinuities in the frequency of the generated phase-locked loop output signal.Type: GrantFiled: April 28, 2009Date of Patent: May 10, 2011Assignee: Marvell International Ltd.Inventors: Randy Tsang, Yu-chi Lee, David Cousinard
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Publication number: 20110063489Abstract: This invention discloses a portable computer capable of performing a digital photo frame function under a main-power-off state. The portable computer includes a base, a display device, an image capturing device, an image capturing switch, and a processor. The display device includes a frame pivotally connected to the base. The image capturing device and the image capturing switch are disposed at the frame. The image capturing switch is operated to output a first request signal to the processor. In response to the first request signal, the processor drive the image capturing device to capture a first image under the main-power-off state, and the processor instantly displays the first image on the display device under the main-power-off state.Type: ApplicationFiled: September 15, 2009Publication date: March 17, 2011Inventors: Yu-chi Lee, Ching-sung Yeh
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Patent number: 7632694Abstract: A manufacturing method for a TFT electrode which is implemented to prevent metal ion diffusion to an adjacent insulating layer during fabrication. The method includes, in the order recited, providing a substrate; forming a first metal layer on the substrate which is comprised of one of a single metal layer structure or a multiple metal layer structure; performing a photolithography and etching process on the first metal layer to form a gate electrode of the TFT electrode; forming a transparent conducting electrode on the first metal layer to cover at least the gate electrode and prevent metal ion diffusion during fabrication, the transparent conducting electrode being comprised of one of indium tin oxide, indium zinc oxide, ZnO or an organic material; and forming a pixel electrode which functions as a barrier to prevent metal ion diffusion during fabrication by performing a photolithography and etching process on the transparent conducting electrode.Type: GrantFiled: March 15, 2006Date of Patent: December 15, 2009Assignees: Taiwan TFT LCD Association, Chunghwa Picture Tubes, Ltd., AU Optronics Corp., Quanta Display Inc., Hannstar Display Corp., Chi Mei Optoelectronics Corp., Industrial Technology Research Institute, Toppoly Optoelectronics Corp.Inventors: Cheng-Chung Chen, Yu-Chang Sun, Yi-Hsun Huang, Chien-Wei Wu, Shuo-Wei Liang, Chia-Hsiang Chen, Chi-Shen Lee, Chai-Yuan Sheu, Yu-Chi Lee, Te-Ming Chu, Cheng-Hsing Chen
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Patent number: 7503531Abstract: A height adjusting mechanism suitable for a keyboard is provided, and the keyboard is placed on a flat surface and has a casing. The height adjusting mechanism includes a fixing piece, a cylinder, a first gear and a second gear. The fixing piece is disposed on the casing and has a container and at least a supporting part that extends into the container. The cylinder has at least a spiral guide on its sidewall and the supporting part slides along the spiral guide when the cylinder rotates. In addition, the first gear is assembled to the cylinder so that the first gear and the cylinder can rotate simultaneously. The second gear and the first gear are meshed with each other so that the second gear can drive and rotate the first gear to adjust the relative distance between the casing and the bottom of the cylinder.Type: GrantFiled: October 26, 2006Date of Patent: March 17, 2009Assignee: ASUSTek Computer Inc.Inventor: Yu-Chi Lee
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Publication number: 20070120033Abstract: A height adjusting mechanism suitable for a keyboard is provided, and the keyboard is placed on a flat surface and has a casing. The height adjusting mechanism includes a fixing piece, a cylinder, a first gear and a second gear. The fixing piece is disposed on the casing and has a container and at least a supporting part that extends into the container. The cylinder has at least a spiral guide on its sidewall and the supporting part slides along the spiral guide when the cylinder rotates. In addition, the first gear is assembled to the cylinder so that the first gear and the cylinder can rotate simultaneously. The second gear and the first gear are meshed with each other so that the second gear can drive and rotate the first gear to adjust the relative distance between the casing and the bottom of the cylinder.Type: ApplicationFiled: October 26, 2006Publication date: May 31, 2007Applicant: ASUSTEK COMPUTER INC.Inventor: Yu-Chi Lee
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Publication number: 20070019395Abstract: An electronic device is disclosed, comprising: a transparent body including an outer surface and an inner surface on opposite sides; a transparent film deposed on the outer surface of the transparent body; an opaque film deposed on the inner surface of the transparent body, wherein a pattern structure is formed in the opaque film, and the pattern structure exposes a portion of the inner surface of the transparent body; and a light source corresponding to a location of the pattern structure.Type: ApplicationFiled: July 19, 2006Publication date: January 25, 2007Inventors: Ching-Sung Yeh, Yu-Chi Lee
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Publication number: 20060202203Abstract: The invention provides a TFT electrode structure and its manufacturing method that can prevent metal diffusion occurring in the fabrication of a TFT, and thereby reduce the risk of contamination of the chemical vapor deposition process due to metallic ion diffusion. The transparent pixel electrode is formed after the gate electrode metal so that the pixel transparent electrode can be used as a barrier layer to prevent metal diffusion under high temperature from the gate electrode metal to adjacent insulating layers or the active layer. Further, the method used to form the transparent pixel electrode is a low-temperature physical vapor deposition process, which affected less by the processing environment, and the transparent pixel electrode is a conductive layer that is not affected by metal diffusion.Type: ApplicationFiled: March 15, 2006Publication date: September 14, 2006Inventors: Cheng-Chung Chen, Yu-Chang Sun, Yi-Hsun Huang, Chien-Wei Wu, Shuo-Wei Liang, Chia-Hsiang Chen, Chi-Shen Lee, Chai-Yuan Sheu, Yu-Chi Lee, Te-Ming Chu, Cheng-Hsing Chen
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Patent number: 7045817Abstract: The invention provides a TFT electrode structure and its manufacturing method that can prevent metal diffusion occurring in the fabrication of a TFT, and thereby reduce the risk of contamination of the chemical vapor deposition process due to metallic ion diffusion. The transparent pixel electrode is formed after the gate electrode metal so that the pixel transparent electrode can be used as a barrier layer to prevent metal diffusion under high temperature from the gate electrode metal to adjacent insulating layers or the active layer. Further, the method used to form the transparent pixel electrode is a low-temperature physical vapor deposition process, which affected less by the processing environment, and the transparent pixel electrode is a conductive layer that is not affected by metal diffusion.Type: GrantFiled: October 15, 2004Date of Patent: May 16, 2006Assignees: Taiwan TFT LCD Association, Chunghwa Picture Tubes, Ltd., Au Optronics Corp, Quanta Display Inc., Hannstar Display Corp, Chi Mei Optoelectronics Corp., Industrial Technology Research Institute, Toppoly Optoelectronics Corp.Inventors: Cheng-Chung Chen, Yu-Chang Sun, Yi-Hsun Huang, Chien-Wei Wu, Shuo-Wei Liang, Chia-Hsiang Chen, Chi-Shen Lee, Chai-Yuan Sheu, Yu-Chi Lee, Te-Ming Chu, Cheng-Hsing Chen
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Patent number: 7006178Abstract: A one drop fill (ODF) liquid crystal display panel has a CF substrate, a TFT substrate, and a liquid crystal layer positioned between the CF substrate and the TFT substrate. The TFT substrate further has a pixel array region positioned in the center part of the TFT substrate, a sealant region position in the periphery region of the TFT substrate, a light-shielding pattern positioned on the sealant region, and a sealant pattern positioned corresponding to the sealant region between the CF substrate and the TFT substrate for assembling the two substrates.Type: GrantFiled: December 12, 2003Date of Patent: February 28, 2006Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Yu-Chi Lee, Po-Hsiu Shih, Hong-Tian Yu, Hung-Jen Chu