Patents by Inventor Wei-Sheng Chang
Wei-Sheng 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: 20240140765Abstract: An overhead hoist transfer apparatus includes a rail assembly including a straight rail having an empty section, and a curved rail having a curved empty section; an engine including a first LSD having first and second wheels at two sides respectively; and a second LSD having third and fourth wheels at two sides respectively; a moving carriage driven by the engine and suspended from the rail assembly; first and second guide wheels disposed on the first LSD; third and fourth guide wheels disposed on the second LSD; and two guide boards disposed above a joining point of the straight rail and the curved rail. An elevation of the guide boards is equal to that of the guide wheels. The guide board includes a straight edge and a curved edge.Type: ApplicationFiled: September 27, 2023Publication date: May 2, 2024Inventors: Jung-Chieh Chang, Yi-Sheng Chen, Jen-Yung Hsiao, Chia-Fu Hsiao, Wei-Qi Lao, Chen-Chih Chan, Caung-Yu Liu
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Publication number: 20240135745Abstract: An electronic device has a narrow viewing angle state and a wide viewing angle state, and includes a panel and a light source providing a light passing through the panel. In the narrow viewing angle state, the light has a first relative light intensity and a second relative light intensity. The first relative light intensity is the strongest light intensity, the second relative light intensity is 50% of the strongest light intensity, the first relative light intensity corresponds to an angle of 0°, the second relative light intensity corresponds to a half-value angle, and the half-value angle is between ?15° and 15°. In the narrow angle state, a third relative light intensity at each angle between 20° and 60° or each angle between ?20° and ?60° is lower than 20% of the strongest light intensity.Type: ApplicationFiled: January 3, 2024Publication date: April 25, 2024Applicant: InnnoLux CorporationInventors: Kuei-Sheng Chang, Po-Yang Chen, Kuo-Jung Wu, I-An Yao, Wei-Cheng Lee, Hsien-Wen Huang
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Publication number: 20240130038Abstract: A transmission device for suppressing the glass-fiber effect includes a circuit board and a transmission line. The circuit board includes a plurality of glass fibers, so as to define a fiber pitch. The transmission line is disposed on the circuit board. The transmission line includes a plurality of non-parallel segments. Each of the non-parallel segments of the transmission line has an offset distance with respect to a reference line. The offset distance is longer than or equal to a half of the fiber pitch.Type: ApplicationFiled: November 23, 2022Publication date: April 18, 2024Applicants: UNIMICRON TECHNOLOGY CORP., National Taiwan UniversityInventors: Chin-Hsun WANG, Ruey-Beei Wu, Ching-Sheng Chen, Chun-Jui Hung, Wei-Yu Liao, Chi-Min Chang
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Publication number: 20240128626Abstract: A transmission device includes a daisy chain structure composed of at least three daisy chain units arranged periodically and continuously. Each of the daisy chain units includes first, second and third conductive lines, and first and second conductive pillars. The first and second conductive lines at a first layer extend along a first direction and are discontinuously arranged. The third conductive line at a second layer extends along the first direction and is substantially parallel to the first and second conductive lines. The first conductive pillar extends in a second direction. The second direction is different from the first direction. A first part of the first conductive pillar is connected to the first and third conductive lines. The second conductive pillar extends in the second direction. A first part of the second conductive pillar is connected to the second and third conductive lines.Type: ApplicationFiled: November 25, 2022Publication date: April 18, 2024Applicants: UNIMICRON TECHNOLOGY CORP., National Taiwan UniversityInventors: Yu-Kuang WANG, Ruey-Beei Wu, Ching-Sheng Chen, Chun-Jui Huang, Wei-Yu Liao, Chi-Min Chang
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Publication number: 20240116707Abstract: A powered industrial truck includes a lateral movement assembly including four sliding members and four pivotal members both on a wheeled carriage, four links having a first end pivotably secured to the sliding member and a second end pivotably secured to either end of the pivotal member, a motor shaft having two ends pivotably secured to the pivotal members respectively, a first electric motor on one frame member, and four mounts attached to the sliding members respectively; two lift assemblies including a second electric motor, a shaft having two ends rotatably secured to the sliding members respectively, two gear trains at the ends of the shaft respectively, a first gear connected to the second electric motor, a second gear on the shaft, and a first roller chain on the first and second gears; two electric attachments on the platform and being laterally moveable, each attachment. The mount has rollers.Type: ApplicationFiled: September 21, 2023Publication date: April 11, 2024Inventors: Jung-Chieh Chang, Yi-Sheng Chen, Jen-Yung Hsiao, Chia-Fu Hsiao, Wei-Qi Lao, Chen-Chih Chan, Chung-Yu Liu
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Patent number: 11940737Abstract: A method includes receiving a device design layout and a scribe line design layout surrounding the device design layout. The device design layout and the scribe line design layout are rotated in different directions. An optical proximity correction (OPC) process is performed on the rotated device design layout and the rotated scribe line design layout. A reticle includes the device design layout and the scribe line design layout is formed after performing the OPC process.Type: GrantFiled: May 7, 2021Date of Patent: March 26, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Hsueh-Yi Chung, Yung-Cheng Chen, Fei-Gwo Tsai, Chi-Hung Liao, Shih-Chi Fu, Wei-Ti Hsu, Jui-Ping Chuang, Tzong-Sheng Chang, Kuei-Shun Chen, Meng-Wei Chen
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Publication number: 20240098492Abstract: During operation, an access point may provide a first WLAN and a second WLAN, where the first WLAN uses a WPA2-compatible authentication protocol and the second WLAN uses a WPA3-compatible authentication protocol. In response to an association request or a probe request associated with (or from) an electronic device, the access point may establish a connection with the electronic device using the first WLAN. Then, the access point may confirm, with a computer system, that a binding between a passphrase associated with the electronic device and the second WLAN exists. Alternatively, when the binding does not exist, the access point may establish the binding in the computer system. Next, the access point may perform a BSS transition of the electronic device from the first WLAN to the second WLAN.Type: ApplicationFiled: September 6, 2023Publication date: March 21, 2024Applicant: ARRIS Enterprises LLCInventors: Wei-Sheng Hsu, Yu-Ting Chang, Weichih Huang, Kuan-Hsun Peng, Weiguo Xie, Christopher Mohammed, Shannon Moyes Clark, Siddhartha Datta, David Burns
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Patent number: 11935878Abstract: A method for manufacturing a package structure includes providing a carrier board; providing at least one die having a top surface, a bottom surface, and a side surface on the carrier board; and forming a protective layer to cover at least a portion of the side surface of the die. The die includes a substrate, a semiconductor layer, a gate structure, a source structure and a drain structure, at least one dielectric layer, and at least one pad. The semiconductor layer is disposed on the substrate. The gate structure is disposed on the semiconductor layer. The source and the drain structures are disposed on opposite sides of the gate structure. The dielectric layer covers the gate, source, and drain structures. The pad is disposed on the dielectric layer and penetrates through the dielectric layer to electrically contact with the gate, source or drain structure.Type: GrantFiled: September 10, 2021Date of Patent: March 19, 2024Assignee: VANGUARD INTERNATIONAL SEMICONDUCTOR CORPORATIONInventors: Hsiu-Mei Yu, Guang-Yuan Jiang, Cheng-Yi Hsieh, Wei-Chan Chang, Chang-Sheng Lin
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Publication number: 20130182474Abstract: A power conversion device includes a DC-DC converter, a DC-AC inverter and a relay. The DC-DC converter leads in a DC from an external solar panel and transforms the DC into a direct voltage. The DC-AC inverter transforms the direct voltage from the DC-DC converter into an alternating voltage and connecting to an external electric load via electric load output ends. The relay includes a coil connected to an external commercial power line via commercial power input ends, and conductive contacts actuated by the coil and serially-disposed between the commercial power input ends and the DC-AC inverter, and with the commercial power line electrifying the coils, the conduction control is formed therebetween, preventing the electric energy of the solar energy generation from inversely transmitting to the commercial power line when interrupting the commercial power service.Type: ApplicationFiled: January 13, 2012Publication date: July 18, 2013Applicant: TOPPER SUN ENERGY TECHNOLOGY CO., LTD.Inventors: CHIA-CHING LUO, WEI-SHENG CHANG, TSUNG-HSIEN WU, TE-CHENG LIU
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Patent number: 8181082Abstract: A wireless receiver system with automatic gain control, which includes a receiving path, an analog to digital converter, an automatic gain control (AGC) device and a controller. The controller has an adjacent channel interference off mode, an adjacent channel interference acquisition mode and an adjacent channel interference tracking mode to accordingly set the AGC device for adjusting the gains of a plurality of modules of the receiving path. Namely, the strengths of different adjacent channel interferences are appropriately adjusted to thereby obtain the best received signal quality.Type: GrantFiled: March 31, 2009Date of Patent: May 15, 2012Assignee: Sunplus Technology Co., Ltd.Inventors: Chi-Hsi Su, Wei Sheng Chang
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Patent number: 7824038Abstract: A method for controlling a dual lamp module applied to a projection apparatus is provided. The dual lamp module includes a first lamp and a second lamp. The method for controlling a dual lamp module includes providing a first operating power to the first lamp, and then determining whether the first lamp is turned on or not. If the first lamp fails to be turned on, stopping providing the first operating power to the first lamp, and providing a second operating power to the second lamp. The second operating power is greater than the first operating power.Type: GrantFiled: September 7, 2007Date of Patent: November 2, 2010Assignee: Young Optics Inc.Inventors: Chi-Chui Yun, Pin-Chun Huang, Wei-Sheng Chang
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Publication number: 20100235707Abstract: A wireless receiver system with automatic gain control, which includes a receiving path, an analog to digital converter, an automatic gain control (AGC) device and a controller. The controller has an adjacent channel interference off mode, an adjacent channel interference acquisition mode and an adjacent channel interference tracking mode to accordingly set the AGC device for adjusting the gains of a plurality of modules of the receiving path. Namely, the strengths of different adjacent channel interferences are appropriately adjusted to thereby obtain the best received signal quality.Type: ApplicationFiled: March 31, 2009Publication date: September 16, 2010Applicant: Sunplus Technology Co., Ltd.Inventors: Chi-Hsi Su, Wei Sheng Chang
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Publication number: 20100079350Abstract: A WWAN printed circuit antenna includes three monopole antennas in the printed circuit board. Signals are fed in from the feed monopole antenna. The first and second radiating monopole antennas are actuated by the feed monopole antenna in an electromagnetic coupling way. Therefore, a three-dimensional structure derived from the planar inverted-F antenna can be replaced, and the limitation of space usage can be overcome.Type: ApplicationFiled: August 21, 2009Publication date: April 1, 2010Inventors: Ming-Iu Lai, Wei-Sheng Chang
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Patent number: 7477799Abstract: An image shifting module for shifting imaging positions of sub-images projected on a screen in each frame, and an optical projection device using the same are provided. The image shifting module includes a first vibration mechanism and a second vibration mechanism. The first vibration mechanism is disposed on the transmission path of the sub-images and shifts the sub-images projected on the screen by a first distance along a horizontal direction in each frame time. Moreover, the second vibration mechanism is disposed on the transmission path of the sub-images and shifts the sub-images projected on the screen by a second distance along a vertical direction in each frame time. Through this image shifting module, the image resolution can be increased.Type: GrantFiled: August 29, 2005Date of Patent: January 13, 2009Assignee: Young Optics Inc.Inventors: Wei-Sheng Chang, Yuan-Yu Lee, Tai-Ling Chung, Wei-Szu Lin, Chi-Chui Yun, Wan Chiang Wang
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Publication number: 20080297053Abstract: A method for controlling a dual lamp module applied to a projection apparatus is provided. The dual lamp module includes a first lamp and a second lamp. The method for controlling a dual lamp module includes providing a first operating power to the first lamp, and then determining whether the first lamp is turned on or not. If the first lamp fails to be turned on, stopping providing the first operating power to the first lamp, and providing a second operating power to the second lamp. The second operating power is greater than the first operating power.Type: ApplicationFiled: September 7, 2007Publication date: December 4, 2008Applicant: YOUNG OPTICS INC.Inventors: Chi-Chui Yun, Pin-Chun Huang, Wei-Sheng Chang
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Publication number: 20060140511Abstract: An image shifting module for shifting imaging positions of sub-images projected on a screen in each frame, and an optical projection device using the same are provided. The image shifting module includes a first vibration mechanism and a second vibration mechanism. The first vibration mechanism is disposed on the transmission path of the sub-images and shifts the sub-images projected on the screen by a first distance along a horizontal direction in each frame time. Moreover, the second vibration mechanism is disposed on the transmission path of the sub-images and shifts the sub-images projected on the screen by a second distance along a vertical direction in each frame time. Through this image shifting module, the image resolution can be increased.Type: ApplicationFiled: August 29, 2005Publication date: June 29, 2006Inventors: Wei-Sheng Chang, Yuan-Yu Lee, Tai-Ling Chung, Wei-Szu Lin, Chi-Chui Yun, Wan Chiang Wang
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Publication number: 20060092388Abstract: An optical projection apparatus includes an illumination system, a projection lens unit, a reflective light valve, a first beam breaker and a second beam breaker. A light beam is provided by the illumination system. The projection lens unit and the reflective light valve are disposed on the transmission path of the light beam, and the reflective light valve is disposed between the illumination system and the projection lens unit. The first beam breaker and the second beam breaker are used to cut into the transmission path of the light beam from different directions to block a part of the light beam, and part of the light beam passes through the first beam breaker and the second beam breaker. The darker image projected by the optical projection apparatus has higher contrast and better uniformity.Type: ApplicationFiled: August 10, 2005Publication date: May 4, 2006Inventors: Chia-Chen Liao, Wei-Sheng Chang, Chu-Ming Cheng, Keng-Han Chuang, Loug-Sheng Liao, Sheng-Chieh Yang, Hsin-Jen Wang
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Patent number: 6817875Abstract: The invention is directed to a card edge connector. The card edge connector is electrically connected to a first circuit board for insertion of a second circuit board therein such that the second circuit board can electrically connect with the first circuit board. The second circuit board is secured within the card edge connector by means of an interference device disposed on one side of a support arm of the card edge connector. The top side of the interference device is at a height higher than the surface of the second circuit board. When the user desires to remove the second circuit board from the card edge connector, a force can be applied to the interference device to cause the two support arms to expand slightly outward, thereby permitting removal of the second circuit board and also eliminating the risk of easy breaking of free ends of the support arms associated with conventional card edge connectors.Type: GrantFiled: January 29, 2003Date of Patent: November 16, 2004Assignee: Molex IncorporatedInventors: Wei-Sheng Chang, Chien-Feng Chen
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Publication number: 20030148640Abstract: The invention is directed to a card edge connector. The card edge connector is electrically connected to a first circuit board for insertion of a second circuit board therein such that the second circuit board can electrically connect with the first circuit board. The second circuit board is secured within the card edge connector by means of an interference device disposed on one side of a support arm of the card edge connector. The top side of the interference device is at a height higher than the surface of the second circuit board. When the user desires to remove the second circuit board from the card edge connector, a force can be applied to the interference device to cause the two support arms to expand slightly outward, thereby permitting removal of the second circuit board and also eliminating the risk of easy breaking of free ends of the support arms associated with conventional card edge connectors.Type: ApplicationFiled: January 29, 2003Publication date: August 7, 2003Inventors: Wei-Sheng Chang, Chien-Feng Chen