Patents by Inventor Youngwoo Yi
Youngwoo Yi 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: 20240147508Abstract: Wireless communications may be used to support data processing. Data processing may be performed based on a priority indication (or lack thereof) in a message for processing data. At least one parameter may be used to determine a priority associated with data processing if a message does not comprise a priority indication.Type: ApplicationFiled: January 10, 2024Publication date: May 2, 2024Inventors: Hua Zhou, Esmael Hejazi Dinan, Alireza Babaei, Ali Cagatay Cirik, Hyoungsuk Jeon, Yunjung Yi, Youngwoo Kwak, Kai Xu, Kyungmin Park
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Publication number: 20240121135Abstract: A base station transmits, to a wireless device via a control resource set (CORESET) of a CORESET group of CORESET groups, a downlink control information (DCI) scheduling transmission of an uplink signal, wherein each of the CORESET groups corresponds to a respective sounding reference signal (SRS) resource set of SRS resource sets. The base station determines an SRS resource set, from the SRS resource sets, corresponding to the CORESET group comprising the CORESET. The base station receives the uplink signal based on an SRS resource in the SRS resource set.Type: ApplicationFiled: December 13, 2023Publication date: April 11, 2024Applicant: Ofinno, LLCInventors: Youngwoo Kwak, Esmael Hejazi Dinan, Ali Cagatay Cirik, Yunjung Yi
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Patent number: 11949627Abstract: Wireless resource determination and use are described. A wireless device may determine to use a resource (e.g., PUCCH resource), indicated by control information (e.g., DCI), for sending an acknowledgement (e.g., HARQ-ACK feedback) of a reception of data (e.g., at least one transport block). The control information may be received in a message of a plurality of messages. The wireless device may select the control information (e.g., for determining the resource) from among other control information in the plurality of messages, based on one or more factors.Type: GrantFiled: May 9, 2023Date of Patent: April 2, 2024Assignee: Comcast Cable Communications, LLCInventors: Ali Cagatay Cirik, Esmael Hejazi Dinan, Yunjung Yi, Hua Zhou, Alireza Babaei, Youngwoo Kwak, Kyungmin Park
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Patent number: 11937332Abstract: A base station may transmit a first downlink control information (DCI) scheduling a physical downlink shared channel (PDSCH). The first DCI may comprise a feedback timing indicator field. In response to the feedback timing indicator field indicating not to receive a feedback for the PDSCH before transmitting a second DCI, the base station may start a discontinuous reception (DRX) timer with a first value. The base station may transmit, via a downlink control channel, the second DCI while the DRX timer is running.Type: GrantFiled: February 25, 2022Date of Patent: March 19, 2024Assignee: Ofinno, LLCInventors: Alireza Babaei, Esmael Hejazi Dinan, Ali Cagatay Cirik, Yunjung Yi, Hua Zhou, Nazanin Rastegardoost, Hyoungsuk Jeon, Youngwoo Kwak, Kai Xu, Bing Hui
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Publication number: 20240089064Abstract: Wireless resource determination and use are described. A wireless device may determine to use a resource (e.g., PUCCH resource), indicated by control information (e.g., DCI), for sending an acknowledgement (e.g., HARQ-ACK feedback) of a reception of data (e.g., at least one transport block). The control information may be received in a message of a plurality of messages. The wireless device may select the control information (e.g., for determining the resource) from among other control information in the plurality of messages, based on one or more factors.Type: ApplicationFiled: July 20, 2023Publication date: March 14, 2024Inventors: Ali Cagatay Cirik, Esmael Hejazi Dinan, Yunjung Yi, Hua Zhou, Alireza Babaei, Youngwoo Kwak, Kyungmin Park
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Patent number: 11930450Abstract: A wireless device transmits assistance information including first configuration parameters indicating that each cell group of cell groups is associated with a maximum number of multiple-input multiple-output (MIMO) layers for a power saving operation of the wireless device with each of the cell groups operating in a different frequency range. Second configuration parameters, for the power saving operation, are received including: a first maximum number of MIMO layers for a first bandwidth part (BWP) of a first cell group of the cell groups, and a second maximum number of MIMO layers for a second BWP of the first cell. Based on the first cell belonging to the first cell group, the first maximum number and the second maximum number are each less than or equal to the maximum number corresponding to the first cell group.Type: GrantFiled: September 15, 2022Date of Patent: March 12, 2024Assignee: Ofinno, LLCInventors: Hua Zhou, Esmael Hejazi Dinan, Yunjung Yi, Ali Cagatay Cirik, Youngwoo Kwak, Hyukjin Chae
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Patent number: 11927868Abstract: Electro-optic (EO) devices having an EO polymer core comprising a first host polymer and a first nonlinear optical chromophore (NLOC); and a cladding comprising a second host polymer and a second NLOC, and methods of preparing the same; wherein the first NLOC has a first bridge covalently bonded to an electron-accepting group and an electron-donating group; wherein the second NLOC has a second bridge covalently bonded to an electron-accepting group and an electron-donating group; and wherein the second bridge is less conjugated than the first bridge such that the cladding has an index of refraction that is less than that of the EO polymer core, and wherein the second NLOC is present in the second host polymer in a concentration such that the cladding has a conductivity equal to or greater than at least 10% of the conductivity of the EO polymer core at a poling temperature.Type: GrantFiled: January 9, 2023Date of Patent: March 12, 2024Assignee: Lightwave Logic, Inc.Inventors: Youngwoo Yi, Cory Steven Pecinovsky, Michael Stephen Lebby, Richard Anthony Becker
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Publication number: 20230251543Abstract: Electro-optic (EO) devices having an EO polymer core comprising a first host polymer and a first nonlinear optical chromophore (NLOC); and a cladding comprising a second host polymer and a second NLOC, and methods of preparing the same; wherein the first NLOC has a first bridge covalently bonded to an electron-accepting group and an electron-donating group; wherein the second NLOC has a second bridge covalently bonded to an electron-accepting group and an electron-donating group; and wherein the second bridge is less conjugated than the first bridge such that the cladding has an index of refraction that is less than that of the EO polymer core, and wherein the second NLOC is present in the second host polymer in a concentration such that the cladding has a conductivity equal to or greater than at least 10% of the conductivity of the EO polymer core at a poling temperature.Type: ApplicationFiled: January 9, 2023Publication date: August 10, 2023Applicant: Lightwave Logic, Inc.Inventors: Youngwoo Yi, Cory Steven Pecinovsky, Michael Stephen Lebby, Richard Anthony Becker
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Patent number: 11614670Abstract: Electro-optic (EO) devices having an EO polymer core comprising a first host polymer and a first nonlinear optical chromophore (NLOC); and a cladding comprising a second host polymer and a second NLOC, and methods of preparing the same; wherein the first NLOC has a first bridge covalently bonded to an electron-accepting group and an electron-donating group; wherein the second NLOC has a second bridge covalently bonded to an electron-accepting group and an electron-donating group; and wherein the second bridge is less conjugated than the first bridge such that the cladding has an index of refraction that is less than that of the EO polymer core, and wherein the second NLOC is present in the second host polymer in a concentration such that the cladding has a conductivity equal to or greater than at least 10% of the conductivity of the EO polymer core at a poling temperature.Type: GrantFiled: September 17, 2019Date of Patent: March 28, 2023Assignee: LIGHTWAVE LOGIC, INC.Inventors: Youngwoo Yi, Cory Steven Pecinovsky, Michael Stephen Lebby, Richard Anthony Becker
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Patent number: 10989871Abstract: A polymer waveguide/modulator including a lower cladding layer, a polymer core, an upper cladding layer, a first protection/barrier layer sandwiched between the lower cladding layer and the core, and a second protection/barrier layer sandwiched between the core and the upper cladding layer. The protection/barrier layers designed to protect the cladding layers and the core from solvents and gases and to prevent current leakage between the cladding layers and the core. The first protection/barrier layer is optically transparent and designed with a refractive index less than, greater than, or the same as the refractive index of the core and approximately equal to the refractive index of the lower cladding layer. The second protection/barrier layer is optically transparent and designed with a refractive index less than, greater than, or the same as the refractive index of the core and approximately equal to the refractive index of the upper cladding layer.Type: GrantFiled: November 21, 2019Date of Patent: April 27, 2021Assignee: Lightwave Logic Inc.Inventors: Richard Becker, Michael Lebby, Youngwoo Yi
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Patent number: 10754093Abstract: A method of fabricating polymer modulators includes forming an insulating layer on a platform and depositing and patterning a ground electrode on the insulating layer. A bottom polymer cladding layer, a first blocking layer, a polymer core layer, a second blocking layer, and a top polymer cladding layer are deposited in order. A third blocking layer is deposited on the top cladding layer and patterned to define vias which are used to etch ground openings through the top polymer cladding layer, the second blocking layer, the core layer, the first blocking layer, and the bottom cladding layer to the ground electrode. The openings are filled with electrically conductive material from electrical communication with the ground electrode to a surface of the top polymer cladding layer. The third blocking layer is removed and electrical contacts are formed on the top polymer cladding layer in electrical communication with the electrically conductive material.Type: GrantFiled: May 14, 2019Date of Patent: August 25, 2020Assignee: Lightwave Logic Inc.Inventors: Zhiming Liu, Michael Lebby, Brian Shaw, Richard Becker, Youngwoo Yi
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Publication number: 20200183245Abstract: Electro-optic (EO) devices having an EO polymer core comprising a first host polymer and a first nonlinear optical chromophore (NLOC); and a cladding comprising a second host polymer and a second NLOC, and methods of preparing the same; wherein the first NLOC has a first bridge covalently bonded to an electron-accepting group and an electron-donating group; wherein the second NLOC has a second bridge covalently bonded to an electron-accepting group and an electron-donating group; and wherein the second bridge is less conjugated than the first bridge such that the cladding has an index of refraction that is less than that of the EO polymer core, and wherein the second NLOC is present in the second host polymer in a concentration such that the cladding has a conductivity equal to or greater than at least 10% of the conductivity of the EO polymer core at a poling temperature.Type: ApplicationFiled: September 17, 2019Publication date: June 11, 2020Applicant: Lightwave Logic, Inc.Inventors: Youngwoo Yi, Cory Steven Pecinovsky, Michael Stephen Lebby, Richard Anthony Becker
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Publication number: 20200088941Abstract: A polymer waveguide/modulator including a lower cladding layer, a polymer core, an upper cladding layer, a first protection/barrier layer sandwiched between the lower cladding layer and the core, and a second protection/barrier layer sandwiched between the core and the upper cladding layer. The protection/barrier layers designed to protect the cladding layers and the core from solvents and gases and to prevent current leakage between the cladding layers and the core. The first protection/barrier layer is optically transparent and designed with a refractive index less than, greater than, or the same as the refractive index of the core and approximately equal to the refractive index of the lower cladding layer. The second protection/barrier layer is optically transparent and designed with a refractive index less than, greater than, or the same as the refractive index of the core and approximately equal to the refractive index of the upper cladding layer.Type: ApplicationFiled: November 21, 2019Publication date: March 19, 2020Applicant: Lightwave Logic Inc.Inventors: Richard Becker, Michael Lebby, Youngwoo Yi
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Patent number: 10520673Abstract: A polymer waveguide/modulator including a lower cladding layer, a polymer core, an upper cladding layer, a first protection/barrier layer sandwiched between the lower cladding layer and the core, and a second protection/barrier layer sandwiched between the core and the upper cladding layer. The protection/barrier layers designed to protect the cladding layers and the core from solvents and gases and to prevent current leakage between the cladding layers and the core. The first protection/barrier layer is optically transparent and designed with a refractive index less than, greater than, or the same as the refractive index of the core and approximately equal to the refractive index of the lower cladding layer. The second protection/barrier layer is optically transparent and designed with a refractive index less than, greater than, or the same as the refractive index of the core and approximately equal to the refractive index of the upper cladding layer.Type: GrantFiled: December 28, 2017Date of Patent: December 31, 2019Assignee: Lightwave Logic Inc.Inventors: Richard Becker, Michael Lebby, Youngwoo Yi
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Publication number: 20190353843Abstract: A method of fabricating polymer modulators includes forming an insulating layer on a platform and depositing and patterning a ground electrode on the insulating layer. A bottom polymer cladding layer, a first blocking layer, a polymer core layer, a second blocking layer, and a top polymer cladding layer are deposited in order. A third blocking layer is deposited on the top cladding layer and patterned to define vias which are used to etch ground openings through the top polymer cladding layer, the second blocking layer, the core layer, the first blocking layer, and the bottom cladding layer to the ground electrode. The openings are filled with electrically conductive material from electrical communication with the ground electrode to a surface of the top polymer cladding layer. The third blocking layer is removed and electrical contacts are formed on the top polymer cladding layer in electrical communication with the electrically conductive material.Type: ApplicationFiled: May 14, 2019Publication date: November 21, 2019Applicant: Lightwave Logic Inc.Inventors: Zhiming Liu, Michael Lebby, Brian Shaw, Richard Becker, Youngwoo Yi
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Publication number: 20190204506Abstract: A polymer waveguide/modulator including a lower cladding layer, a polymer core, an upper cladding layer, a first protection/barrier layer sandwiched between the lower cladding layer and the core, and a second protection/barrier layer sandwiched between the core and the upper cladding layer. The protection/barrier layers designed to protect the cladding layers and the core from solvents and gases and to prevent current leakage between the cladding layers and the core. The first protection/barrier layer is optically transparent and designed with a refractive index less than, greater than, or the same as the refractive index of the core and approximately equal to the refractive index of the lower cladding layer. The second protection/barrier layer is optically transparent and designed with a refractive index less than, greater than, or the same as the refractive index of the core and approximately equal to the refractive index of the upper cladding layer.Type: ApplicationFiled: December 28, 2017Publication date: July 4, 2019Applicant: Lightwave Logic Inc.Inventors: Richard Becker, Michael Lebby, Youngwoo Yi
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Patent number: 7182982Abstract: The present invention provides a device that acts as an optical switch to control the intensity of a light beam through the action of a second control beam. This behavior is achieved through photoinduced anisotropy that develops in a monomolecular layer coating the inside surfaces of a liquid crystal cell. One of the surfaces is permanently aligned prior to assembly by illuminating the surface with polarized light in the presence of oxygen. The other surface retains reversible behavior, adapting anisotropy according to the orientation of the polarization of the control beam. Accordingly, an optically controlled liquid crystal light valve is provided that does not require contact-rubbing methods in order to permanently align one of the layers coating an inside surface of the cell.Type: GrantFiled: September 13, 2005Date of Patent: February 27, 2007Assignee: Colorado School of MinesInventors: Thomas E. Furtak, Youngwoo Yi
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Publication number: 20060055837Abstract: The present invention provides a device that acts as an optical switch to control the intensity of a light beam through the action of a second control beam. This behavior is achieved through photoinduced anisotropy that develops in a monomolecular layer coating the inside surfaces of a liquid crystal cell. One of the surfaces is permanently aligned prior to assembly by illuminating the surface with polarized light in the presence of oxygen. The other surface retains reversible behavior, adapting anisotropy according to the orientation of the polarization of the control beam. Accordingly, an optically controlled liquid crystal light valve is provided that does not require contact-rubbing methods in order to permanently align one of the layers coating an inside surface of the cell.Type: ApplicationFiled: September 13, 2005Publication date: March 16, 2006Inventors: Thomas Furtak, Youngwoo Yi