Patents by Inventor Joel Yang
Joel Yang 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: 20240104420Abstract: Certain aspects of the present disclosure provide techniques and apparatus for a training and using machine learning models in multi-device network environments. An example computer-implemented method for network communications performed by a host device includes extracting a feature set from a data set associated with a client device using a client-device-specific feature extractor, wherein the feature set comprises a subset of features in a common feature space, training a task-specific model based on the extracted feature set and one or more other feature sets associated with other client devices, wherein the feature sets associated with the other client devices comprise one or more subsets of features in the common feature space, and deploying, to each respective client device of a plurality of client devices, a respective version of the task-specific model.Type: ApplicationFiled: September 23, 2022Publication date: March 28, 2024Inventors: Kyu Woong HWANG, Seunghan YANG, Hyunsin PARK, Leonid SHEYNBLAT, Vinesh SUKUMAR, Ziad ASGHAR, Justin MCGLOIN, Joel LINSKY, Tong TANG
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Patent number: 11927785Abstract: There is provided a holographic optical element including: a hologram portion including a plurality of groups of unit regions, each group of unit regions of the hologram portion being configured to produce a respective holographic image under a respective light illumination having a respective predetermined wavelength; and a colour filter portion formed on the hologram portion, the colour filter portion including a plurality of groups of unit regions, each group of unit regions of the colour filter portion being arranged on a corresponding group of the plurality of groups of unit regions of the hologram portion, whereby the plurality of groups of unit regions of the colour filter portion is spatially arranged to form a predetermined colour image. There is also provided a method of forming the holographic optical element. There is further provided an article having optical security incorporated therein.Type: GrantFiled: April 15, 2019Date of Patent: March 12, 2024Assignee: SINGAPORE UNIVERSITY OF TECHNOLOGY AND DESIGNInventors: Tze Peng Kevin Lim, Kwang Wei Joel Yang, Hailong Liu
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Publication number: 20240072160Abstract: A semiconductor device is disclosed herein. The semiconductor device includes a silicon carbide substrate, trench structures, mesa structures, a first oxide layer, a conductive layer, a second oxide layer, a dielectric layer, and an insulation layer. The trench structures are formed on a surface of the silicon carbide substrate. Each trench structure has sidewalls and a bottom, and each respective mesa structure is formed between the respective adjacent trench structures. The first oxide layer is formed on the sidewalls of the trench structures. The conductive layer is formed on the bottom of the trench structures and on a top surface of each mesa structure. The second oxide layer is formed on the first oxide layer and the conductive layer. The dielectric layer is formed on the second oxide layer. The insulation layer is formed on the dielectric layer.Type: ApplicationFiled: August 23, 2023Publication date: February 29, 2024Inventors: Haifeng Yang, Zhiyong Chen, Vipindas Pala, Joel McGregor, Zeqiang Yao
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Publication number: 20240067586Abstract: A process for dimerizing and oligomerizing olefins to distillate fuels which utilizes a solid acid catalyst for ethylene oligomerization in a first stage and a metal catalyst for further oligomerization in a second stage. Distillate fuels can be produced from the process. Oligomerized olefins may be recycled to the first stage oligomerization reaction to ensure sufficient oligomerization of smaller olefins.Type: ApplicationFiled: August 28, 2023Publication date: February 29, 2024Inventors: Ashish Mathur, Manuela Serban, Joel S. Paustian, Deng-Yang Jan
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Patent number: 11803125Abstract: There is provided a method of forming a patterned structure on a substrate. The method includes: forming a resist layer on the substrate, the resist layer being a negative tone resist; exposing a first portion of the resist layer to a focused electron beam to form a modified first portion, the modified first portion defining a boundary of a second portion of the resist layer; performing a plasma treatment on a surface of the resist layer, including on a surface of the second portion of the resist layer to form a modified surface portion of the second portion of the resist layer, resulting in a plasma treated resist layer; and performing development of the plasma treated resist layer to form the patterned structure on the substrate corresponding the second portion of the resist layer.Type: GrantFiled: July 2, 2020Date of Patent: October 31, 2023Assignee: Singapore University of Technology and DesignInventors: You Sin Tan, Joel Yang, Hailong Liu, Qifeng Ruan
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Patent number: 11287551Abstract: This application relates to a method of forming nano-patterns on a substrate comprising the step of forming a plurality of nanostructures on a dielectric substrate, wherein the nanostructures are dimensioned or spaced apart from each other by a scaling factor of the dielectric substrate with reference to a silicon substrate.Type: GrantFiled: September 5, 2017Date of Patent: March 29, 2022Assignee: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCHInventors: Kwang Wei Joel Yang, Zhaogang Dong, Ramon Paniagua-Dominguez, Arseniy Kuznetsov, Yefeng Yu
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Publication number: 20210405532Abstract: There is provided a method of forming a patterned structure on a substrate. The method includes: forming a resist layer on the substrate, the resist layer being a negative tone resist; exposing a first portion of the resist layer to a focused electron beam to form a modified first portion, the modified first portion defining a boundary of a second portion of the resist layer; performing a plasma treatment on a surface of the resist layer, including on a surface of the second portion of the resist layer to form a modified surface portion of the second portion of the resist layer, resulting in a plasma treated resist layer; and performing development of the plasma treated resist layer to form the patterned structure on the substrate corresponding the second portion of the resist layer.Type: ApplicationFiled: July 2, 2020Publication date: December 30, 2021Inventors: You Sin Tan, Joel Yang, Hailong Liu, Qifeng Ruan
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Publication number: 20210364686Abstract: There is provided a holographic optical element including: a hologram portion including a plurality of groups of unit regions, each group of unit regions of the hologram portion being configured to produce a respective holographic image under a respective light illumination having a respective predetermined wavelength; and a colour filter portion formed on the hologram portion, the colour filter portion including a plurality of groups of unit regions, each group of unit regions of the colour filter portion being arranged on a corresponding group of the plurality of groups of unit regions of the hologram portion, whereby the plurality of groups of unit regions of the colour filter portion is spatially arranged to form a predetermined colour image. There is also provided a method of forming the holographic optical element. There is further provided an article having optical security incorporated therein.Type: ApplicationFiled: April 15, 2019Publication date: November 25, 2021Inventors: Tze Peng Kevin LIM, Kwang Wei Joel YANG, Hailong LIU
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Patent number: 11125815Abstract: A reconfigurable optic probe is used to measure signals from a device under test. The reconfigurable optic probe is positioned at a target probe location within a cell of the device under test. The cell including a target net to be measured and non-target nets. A test pattern is applied to the cell and a laser probe (LP) waveform is obtained in response. A target net waveform is extracted from the LP waveform by: i) configuring the reconfigurable optic probe to produce a ring-shaped beam having a relatively low-intensity region central to the ring-shaped beam; (ii) re-applying the test pattern to the cell at the target probe location with the relatively low-intensity region applied to the target net and obtaining a cross-talk LP waveform in response; (iii) normalizing the cross-talk LP waveform; and (iv) determining a target net waveform by subtracting the normalized cross-talk LP waveform from the LP waveform.Type: GrantFiled: September 27, 2019Date of Patent: September 21, 2021Assignee: Advanced Micro Devices, Inc.Inventors: Venkat Krishnan Ravikumar, Jiann Min Chin, Joel Yang Kwang Wei, Pey Kin Leong
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Publication number: 20210096174Abstract: A reconfigurable optic probe is used to measure signals from a device under test. The reconfigurable optic probe is positioned at a target probe location within a cell of the device under test. The cell including a target net to be measured and non-target nets. A test pattern is applied to the cell and a laser probe (LP) waveform is obtained in response. A target net waveform is extracted from the LP waveform by: i) configuring the reconfigurable optic probe to produce a ring-shaped beam having a relatively low-intensity region central to the ring-shaped beam; (ii) re-applying the test pattern to the cell at the target probe location with the relatively low-intensity region applied to the target net and obtaining a cross-talk LP waveform in response; (iii) normalizing the cross-talk LP waveform; and (iv) determining a target net waveform by subtracting the normalized cross-talk LP waveform from the LP waveform.Type: ApplicationFiled: September 27, 2019Publication date: April 1, 2021Applicant: Advanced Micro Devices, Inc.Inventors: Venkat Krishnan Ravikumar, Jiann Min Chin, Joel Yang Kwang Wei, Pei Kin Leong
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Publication number: 20190187337Abstract: This application relates to a method of forming nano-patterns on a substrate comprising the step of forming a plurality of nanostructures on a dielectric substrate, wherein the nanostructures are dimensioned or spaced apart from each other by a scaling factor of the dielectric substrate with reference to a silicon substrate. There is also provided a method of forming a nano-patterned substrate comprising the step of forming a plurality of nanostructures on a dielectric substrate, wherein said dielectric substrate comprises an anti-reflectance layer disposed on a base substrate.Type: ApplicationFiled: September 5, 2017Publication date: June 20, 2019Inventors: Kwang Wei Joel YANG, Zhaogang DONG, Ramon Paniagua-Dominguez, Arseniy KUZNETSOV, Yefeng YU
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Publication number: 20180229262Abstract: The present invention relates to methods for producing a composite material comprising a substrate and a monolayer of nanoparticles self-assembled thereupon, the method comprising: (i) providing a suspension comprising a solvent and nanoparticles dispersed therein; (ii) providing a substrate comprising a surface with void spaces for accommodating said nanoparticles; (iii) contacting one end of said substrate with said suspension in a closed system, to thereby gradually dispose said suspension over said substrate by capillary action, thereby forming a film of suspension on said substrate; and (iv) allowing evaporation of said film of suspension, thereby forming a monolayer of nanoparticles self-assembled in said void spaces on said surface of the substrate. The present invention also relates to composite material produced by the methods disclosed herein.Type: ApplicationFiled: July 28, 2016Publication date: August 16, 2018Inventors: Mohamed ASBAHI, Kwang Wei Joel YANG, Junhao TAN, Shafigh MEHRAEEN, Mei Chee TAN
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Patent number: 9633685Abstract: According to embodiments of the present invention, a method of writing to an optical data storage medium is provided. The method includes receiving a plurality of data elements, each data element having one of a plurality of values, wherein each value of the plurality of values is associated with a wavelength, and forming, for each data element, a nanostructure arrangement on the optical data storage medium, the nanostructure arrangement configured to reflect light of the wavelength associated with the value of the data element in response to a light irradiated on the optical data storage medium. According to further embodiments of the present invention, a method of reading from an optical data storage medium and an optical data storage medium are also provided.Type: GrantFiled: September 27, 2013Date of Patent: April 25, 2017Assignee: Agency for Science, Technology and ResearchInventors: Karthik Kumar, Kwang Wei Joel Yang, Huigao Duan, Mohamed Asbahi
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Publication number: 20140092718Abstract: According to embodiments of the present invention, a method of writing to an optical data storage medium is provided. The method includes receiving a plurality of data elements, each data element having one of a plurality of values, wherein each value of the plurality of values is associated with a wavelength, and forming, for each data element, a nanostructure arrangement on the optical data storage medium, the nanostructure arrangement configured to reflect light of the wavelength associated with the value of the data element in response to a light irradiated on the optical data storage medium. According to further embodiments of the present invention, a method of reading from an optical data storage medium and an optical data storage medium are also provided.Type: ApplicationFiled: September 27, 2013Publication date: April 3, 2014Applicant: Agency for Science, Technology and ResearchInventors: Karthik Kumar, Kwang Wei Joel Yang, Huigao Duan, Mohamed Asbahi
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Publication number: 20110252678Abstract: A street sign method, system and apparatus includes at least one translucent sign face, a solar photovoltaic panel system for generating electrical energy from sunlight, a rechargeable battery system for storing the electrical energy during the day, at least one Light Emitting Diode (LED) powered by the electrical energy stored in the rechargeable battery system, and a control circuit powered by the rechargeable battery system and configured to operate the at least one LED to illuminate the at least one sign face. The control circuit is configured to calculate an amount of electrical power that can be supplied from the rechargeable battery system to the at least one LED so that said the at least one LED operates at a relatively constant level of LED light output brightness during substantially the entire night time hours based on solar energy supplied to the rechargeable battery system during the previous daytime hours. The street name sign is mountable to a post or pole.Type: ApplicationFiled: April 11, 2011Publication date: October 20, 2011Inventors: Dale Jones, Joel Yang
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Patent number: 7281046Abstract: An application program interface system and method for automating high speed network access ordering and provisioning processes, particularly involving business to business interactions, such as automating interactions between ISPs and ILEC/CLECs for xDSL service ordering and provisioning processes, are disclosed. The method for automating communications between service providers in connection with providing a high speed network access service generally comprises electronically receiving a request message relating to the high speed network access service from a service provider via a network, processing the request message from the service provider using a computer system to automatically generate a response message to the request message, and electronically transmitting the response message to the service provider via the network.Type: GrantFiled: June 30, 2000Date of Patent: October 9, 2007Assignee: Covad Communications CompanyInventors: Vinu Sunderasan, Umesh Bellur, Joel Yang, Benjamin C. Cohen, Krishna S. Garimella