Patents by Inventor Hang Xie
Hang Xie 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: 20250047518Abstract: Low data rate, low power, bi-directional transmissions may be provided over existing physical communication media (e.g., coaxial cables) using a portable network communications module and in the presence of higher bandwidth, higher power primary signals currently being transmitted over the communication media. The low data rate, low power, bi-directional transmissions may be accomplished using spread-spectrum modulated signals that are positioned in frequency relative to the primary signals, such that the low data rate, low power transmissions occur without detectable interference with the primary signals, which include multiplexed narrowband modulated signals. The primary signals may be modulated using quadrature amplitude modulation (QAM) and multiplexed using orthogonal frequency division multiplexing (OFDM) and the spread-spectrum modulated signals may be chirp spread spectrum (CSS) modulated signals modulated using Gaussian frequency shift keying (GFSK).Type: ApplicationFiled: August 1, 2024Publication date: February 6, 2025Inventors: Rafael CELEDON, Yi WANG, Tina MATHEWS, Ruru CHEN, Mark SIEJKA, Hang XIE, Ramesh NALLUR, Stefan MURRY, David STEWART
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Publication number: 20240275490Abstract: Low data rate, low power, bi-directional transmissions may be provided over existing physical communication media (e.g., coaxial cables and/or optical fiber) and in the presence of higher bandwidth, higher power primary signals currently being transmitted over the communication media. The low data rate, low power, bi-directional transmissions may be accomplished using spread-spectrum modulated signals that are positioned in frequency relative to the primary signals, such that the low data rate, low power transmissions occur without detectable interference with the primary signals, which include multiplexed narrowband modulated signals. In some embodiments, the primary signals may be modulated using quadrature amplitude modulation (QAM) and multiplexed using orthogonal frequency division multiplexing (OFDM) and the spread-spectrum modulated signals may be chirp spread spectrum (CSS) modulated signals modulated using Gaussian frequency shift keying (GFSK).Type: ApplicationFiled: February 9, 2024Publication date: August 15, 2024Inventors: Rafael CELEDON, Yi WANG, Tina MATHEWS, Ruru CHEN, Mark SIEJKA, Hang XIE, Ramesh NALLUR
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Publication number: 20240275426Abstract: Low data rate, low power, bi-directional transmissions may be provided over existing physical communication media (e.g., coaxial cables and/or optical fiber) and in the presence of higher bandwidth, higher power primary signals currently being transmitted over the communication media. The low data rate, low power, bi-directional transmissions may be accomplished using spread-spectrum modulated signals that are positioned in frequency relative to the primary signals, such that the low data rate, low power transmissions occur without detectable interference with the primary signals, which include multiplexed narrowband modulated signals. In some embodiments, the primary signals may be modulated using quadrature amplitude modulation (QAM) and multiplexed using orthogonal frequency division multiplexing (OFDM) and the spread-spectrum modulated signals may be chirp spread spectrum (CSS) modulated signals modulated using Gaussian frequency shift keying (GFSK).Type: ApplicationFiled: February 9, 2024Publication date: August 15, 2024Inventors: Rafael CELEDON, Yi WANG, Tina MATHEWS, Ruru CHEN, Mark SIEJKA, Hang XIE, Ramesh NALLUR
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Patent number: 11474167Abstract: A method for detecting a magnetic field using a spin-orbit torque magnetic field sensor is described. The spin-orbit torque magnetic field sensor comprises a magnetic layer having a switchable magnetic state. The method comprises: (i) providing an alternating current to the sensor for creating an oscillatory spin-orbit torque in the magnetic layer to switch the switchable magnetic state between two magnetic states; and (ii) measuring an output voltage of the sensor, the output voltage being dependent on the magnetic field and is a time average of a time-varying anomalous Hall voltage generated in the magnetic layer in response to the oscillatory spin-orbit torque and the magnetic field.Type: GrantFiled: August 13, 2021Date of Patent: October 18, 2022Assignee: National University of SingaporeInventors: Yihong Wu, Hang Xie
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Patent number: 11327972Abstract: In some instances, the disclosure provides a method for generating search queries using toggle buttons associated with product categories. The method comprises causing display of a plurality of search recommendation indicia on a graphical user interface. The search recommendation indicia includes toggle buttons associated with product categories and product indicia associated with products. The method further comprises receiving user inputs for a toggle button associated with a product category and product indicia indicating selections of products, determining whether the selected products belong to the product category, generating a search query based on the product category, the selected products, and whether the selected products belongs to the product category associated with the toggle button. Then, the method comprises providing the search query to a backend server and receiving results from the search query from the backend server.Type: GrantFiled: May 4, 2020Date of Patent: May 10, 2022Assignee: Aetna Inc.Inventors: Amanda White, Amarpreet Komal, Chris Williams, Christina Hollstein, Elana Pentelnik, Hang Xie, Pete Thorne, Ryan Lennon, Timothy Nachbauer, Warwick de Kock
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Patent number: 11289875Abstract: In general, a temperature control device for use in laser assemblies and optical subassemblies is disclosed that includes at least two electrically conductive terminals to enable flexible electrical coupling to associated components, e.g., monitor photodiodes and laser diodes, and accommodate a range of laser assembly configurations without the necessity of supplying a negative voltage rail. In more detail, a temperature control device consistent with the present disclosure includes a bottom plate, a top plate, and a plurality of semiconductor elements disposed therebetween. The top plate includes a component mounting surface that provides at least a first and second electrically conductive terminal/pad. The first and second electrically conductive terminals/pads can be electrically isolated, e.g., via a gap, and configured to provide first and second voltage potentials respectively.Type: GrantFiled: November 24, 2019Date of Patent: March 29, 2022Assignee: Applied Optoelectronics, Inc.Inventors: Kai-Sheng Lin, Hang Xie, Ming Qi
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Patent number: 11177887Abstract: The present disclosure is generally directed to a stepped profile for substrates that support “on board” optical subassembly arrangements. The stepped profile enables mounting TOSA modules to the substrate in a recessed orientation to reduce the overall distance between terminals of the substrate and associated components of the TOSA, e.g., RF terminals of the substrate and an LDD of the TOSA. In an embodiment, the stepped profile further simplifies mounting and optical alignment of TOSA modules by providing at least one mechanical stop to engage surfaces of the TOSA modules and limit travel by the same along one or more axis.Type: GrantFiled: January 8, 2020Date of Patent: November 16, 2021Assignee: Applied Optoelectronics, Inc.Inventors: Kai-Sheng Lin, Hang Xie, Yi Wang
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Publication number: 20210342340Abstract: In some instances, the disclosure provides a method for generating search queries using toggle buttons associated with product categories. The method comprises causing display of a plurality of search recommendation indicia on a graphical user interface. The search recommendation indicia includes toggle buttons associated with product categories and product indicia associated with products. The method further comprises receiving user inputs for a toggle button associated with a product category and product indicia indicating selections of products, determining whether the selected products belong to the product category, generating a search query based on the product category, the selected products, and whether the selected products belongs to the product category associated with the toggle button. Then, the method comprises providing the search query to a backend server and receiving results from the search query from the backend server.Type: ApplicationFiled: May 4, 2020Publication date: November 4, 2021Inventors: Amanda White, Amarpreet Komal, Chris Williams, Christina Hollstein, Elana Pentelnik, Hang Xie, Pete Thorne, Ryan Lennon, Timothy Nachbauer, Warwick de Kock
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Publication number: 20210211198Abstract: The present disclosure is generally directed to a monitor photodiode (MPD) submount for use in optical transceivers that includes a body with a conductive trace pattern disposed on multiple surfaces of the same to allow for vertical mounting of an associated MPD and simplified electrical interconnection with TOSA circuitry without the necessity of electrical interconnection. The MPD submount includes a body defined by a plurality of sidewalls. At least one surface of the body provides a mounting surface for coupling to and supporting an MPD. The MPD submount further includes a conductive trace pattern that provides at least one conductive path that is disposed on the mounting surface and on at least one adjoining sidewall. The portion of the at least one conductive path disposed on the adjoining sidewall extends substantially transverse relative to the surface defining the transceiver/transmitter substrate when the MPD submount is coupled to the same.Type: ApplicationFiled: January 8, 2020Publication date: July 8, 2021Inventors: Kai-Sheng LIN, Hao-Chiang CHENG, Hang XIE
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Publication number: 20210211199Abstract: The present disclosure is generally directed to a stepped profile for substrates that support “on board” optical subassembly arrangements. The stepped profile enables mounting TOSA modules to the substrate in a recessed orientation to reduce the overall distance between terminals of the substrate and associated components of the TOSA, e.g., RF terminals of the substrate and an LDD of the TOSA. In an embodiment, the stepped profile further simplifies mounting and optical alignment of TOSA modules by providing at least one mechanical stop to engage surfaces of the TOSA modules and limit travel by the same along one or more axis.Type: ApplicationFiled: January 8, 2020Publication date: July 8, 2021Inventors: Kai-Sheng LIN, Hang XIE, Yi WANG
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Patent number: 11057112Abstract: The present disclosure is generally directed to a monitor photodiode (MPD) submount for use in optical transceivers that includes a body with a conductive trace pattern disposed on multiple surfaces of the same to allow for vertical mounting of an associated MPD and simplified electrical interconnection with TOSA circuitry without the necessity of electrical interconnection. The MPD submount includes a body defined by a plurality of sidewalls. At least one surface of the body provides a mounting surface for coupling to and supporting an MPD. The MPD submount further includes a conductive trace pattern that provides at least one conductive path that is disposed on the mounting surface and on at least one adjoining sidewall. The portion of the at least one conductive path disposed on the adjoining sidewall extends substantially transverse relative to the surface defining the transceiver/transmitter substrate when the MPD submount is coupled to the same.Type: GrantFiled: January 8, 2020Date of Patent: July 6, 2021Assignee: Applied Optoelectronics, Inc.Inventors: Kai-Sheng Lin, Hao-Chiang Cheng, Hang Xie
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Publication number: 20210159666Abstract: In general, a temperature control device for use in laser assemblies and optical subassemblies is disclosed that includes at least two electrically conductive terminals to enable flexible electrical coupling to associated components, e.g., monitor photodiodes and laser diodes, and accommodate a range of laser assembly configurations without the necessity of supplying a negative voltage rail. In more detail, a temperature control device consistent with the present disclosure includes a bottom plate, a top plate, and a plurality of semiconductor elements disposed therebetween. The top plate includes a component mounting surface that provides at least a first and second electrically conductive terminal/pad. The first and second electrically conductive terminals/pads can be electrically isolated, e.g., via a gap, and configured to provide first and second voltage potentials respectively.Type: ApplicationFiled: November 24, 2019Publication date: May 27, 2021Inventors: Kai-Sheng LIN, Hang XIE, Ming QI
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Publication number: 20140058769Abstract: A social networking system server which includes a processor, wherein the processor utilizes computer readable program code to initiate, implement, and conclude, a travel plan. The computer readable program code comprising a series of computer readable program steps to effect coordinating a global, on-line social networking system (“SNS”). The computer readable program code further includes a series of computer readable program steps to effect initiating a travel plan for a first SNS member, purchasing goods on-line, implementing a tour plan, and concluding the tour plan.Type: ApplicationFiled: August 22, 2013Publication date: February 27, 2014Inventors: Xinyu Zhang, Hang Xie
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Patent number: 8194629Abstract: A wireless communication device acquires membership in a predefined group, joins an ad hoc network associated with the predefined group, and joins and participates in a first session established through an infrastructure device for distributing media to the predefined group. If the wireless communication device is a duplicator node for the ad hoc network, then it receives the media from the infrastructure device and distributes the media other nodes of the ad hoc network, otherwise it receives the media from the duplicator node. The infrastructure device identifies the duplicator node for each ad hoc network associated with the predefined group and each member of the predefined group that is not a node of any of the ad hoc networks and distributes the media only to these members of the predefined group.Type: GrantFiled: July 22, 2008Date of Patent: June 5, 2012Assignee: Motorola Solutions, Inc.Inventors: Anatoly Agulnik, Thomas M. Tirpak, Hang Xie
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Publication number: 20100020745Abstract: A wireless communication device acquires membership in a predefined group, joins an ad hoc network associated with the predefined group, and joins and participates in a first session established through an infrastructure device for distributing media to the predefined group. If the wireless communication device is a duplicator node for the ad hoc network, then it receives the media from the infrastructure device and distributes the media other nodes of the ad hoc network, otherwise it receives the media from the duplicator node. The infrastructure device identifies the duplicator node for each ad hoc network associated with the predefined group and each member of the predefined group that is not a node of any of the ad hoc networks and distributes the media only to these members of the predefined group.Type: ApplicationFiled: July 22, 2008Publication date: January 28, 2010Applicant: MOTOROLA, INC.Inventors: ANATOLY AGULNIK, THOMAS M. TIRPAK, HANG XIE