Patents by Inventor Jingyu Zhou
Jingyu Zhou 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: 20240105812Abstract: A nitride-based semiconductor device includes a first nitride-based semiconductor layer, a second nitride-based semiconductor layer, a third nitride-based semiconductor layer, a passivation layer, a gate insulator layer, and a gate electrode. The first nitride-based semiconductor layer includes at least two doped barrier regions defining an aperture between the doped barrier regions. The second nitride-based semiconductor layer is disposed over first nitride-based semiconductor layer. The third nitride-based semiconductor layer is disposed on the second nitride-based semiconductor layer and has a bandgap higher than a bandgap of the second nitride-based semiconductor layer. The passivation layer is disposed over the third nitride-based semiconductor layer, in which a vertical projection of the passivation layer on the first nitride-based semiconductor layer is spaced apart from the aperture. The gate insulator layer is disposed over the third nitride-based semiconductor layer.Type: ApplicationFiled: December 17, 2021Publication date: March 28, 2024Inventors: Chao YANG, Chunhua ZHOU, Yong LIU, Qiyue ZHAO, Jingyu SHEN
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Publication number: 20220051286Abstract: A computer system and computer-implemented method for receiving digitally stored metadata that defines a digital offer including specifying one or more static components and one or more dynamic components; for each of the static components, pre-computing a digital image in an interim raw byte representation and digitally storing the interim raw byte representations corresponding to all the static components; in response to receiving a request to provide a digital offer in real-time on demand: retrieving the interim raw byte representations corresponding to all the static components; for each of the dynamic components, rendering a component image file in real-time on demand; joining the interim raw byte representations corresponding to all the static components and all the component image files corresponding to the dynamic components and creating and storing a single digital image file corresponding to the digital offer; and transmitting the single digital image file to another computer.Type: ApplicationFiled: October 30, 2020Publication date: February 17, 2022Inventors: VIPUL RASIKLAL BHARAKHADA, TAO FENG, KSHAMA SHIVAJI PAWAR, RATIKA PRASAD, SANJAY SIDDAPPA, JINGYU ZHOU
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Patent number: 8396359Abstract: A method for engineering of a connection in a WDM photonic network with a plurality of flexibility sites connected by links comprises calculating a physical end-to-end route between a source node and a destination node and setting-up a communication path along this end-to-end route. An operational parameter of the communication path is continuously tested and compared with a test threshold. The path is declared established whenever the operational parameter is above the margin tolerance. The established path is continuously monitored by comparing the operational parameter with a maintenance threshold. A regenerator is switched into the path whenever the operational parameter is under the respective threshold, or another path is assigned to the respective connection. An adaptive channel power turn-on procedure provides for increasing gradually the power level of the transmitters in the path while measuring an error quantifier at the destination receiver until a preset error quantifier value is reached.Type: GrantFiled: March 8, 2011Date of Patent: March 12, 2013Assignee: Alcatel LucentInventors: Jingyu Zhou, Alan Glen Solheim, Robert Au-Yang, Mark Stephen Wight, Christian Scheerer
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Publication number: 20110182576Abstract: A method for engineering of a connection in a WDM photonic network with a plurality of flexibility sites connected by links comprises calculating a physical end-to-end route between a source node and a destination node and setting-up a communication path along this end-to-end route. An operational parameter of the communication path is continuously tested and compared with a test threshold. The path is declared established whenever the operational parameter is above the margin tolerance. The established path is continuously monitored by comparing the operational parameter with a maintenance threshold. A regenerator is switched into the path whenever the operational parameter is under the respective threshold, or another path is assigned to the respective connection. An adaptive channel power turn-on procedure provides for increasing gradually the power level of the transmitters in the path while measuring an error quantifier at the destination receiver until a preset error quantifier value is reached.Type: ApplicationFiled: March 8, 2011Publication date: July 28, 2011Inventors: Jingyu Zhou, Alan Glen Solheim, Robert Au-Yang, Mark Stephen Wight, Christian Scheerer
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Patent number: 7941047Abstract: A method for engineering of a connection in a WDM photonic network with a plurality of flexibility sites connected by links comprises calculating a physical end-to-end route between a source node and a destination node and setting-up a communication path along this end-to-end route. An operational parameter of the communication path is continuously tested and compared with a test threshold. The path is declared established whenever the operational parameter is above the margin tolerance. The established path is continuously monitored by comparing the operational parameter with a maintenance threshold. A regenerator is switched into the path whenever the operational parameter is under the respective threshold, or another path is assigned to the respective connection. An adaptive channel power turn-on procedure provides for increasing gradually the power level of the transmitters in the path while measuring an error quantifier at the destination receiver until a preset error quantifier value is reached.Type: GrantFiled: May 31, 2002Date of Patent: May 10, 2011Assignee: Alcatel-Lucent USA Inc.Inventors: Jingyu Zhou, Alan Glen Solheim, Robert Au-Yang, Mark Stephen Wight, Christian Scheerer
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Patent number: 7894372Abstract: Topology-centric resource management for large scale service clusters is described herein. According to certain embodiments of the invention, techniques include 1) creating optimized topology with network switches to connect service modules based on application flows and bandwidth requirements, 2) providing centralized or decentralized monitoring schemes to maintain the topology view of a service cluster, and 3) using the topology information for optimizing load balancing and service information dissemination. Other methods and apparatuses are also described.Type: GrantFiled: May 31, 2005Date of Patent: February 22, 2011Assignee: IAC Search & Media, Inc.Inventors: Lingkun Chu, Tao Yang, Jingyu Zhou
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Publication number: 20060268742Abstract: Topology-centric resource management for large scale service clusters is described herein. According to certain embodiments of the invention, techniques include 1) creating optimized topology with network switches to connect service modules based on application flows and bandwidth requirements, 2) providing centralized or decentralized monitoring schemes to maintain the topology view of a service cluster, and 3) using the topology information for optimizing load balancing and service information dissemination. Other methods and apparatuses are also described.Type: ApplicationFiled: May 31, 2005Publication date: November 30, 2006Inventors: Lingkun Chu, Tao Yang, Jingyu Zhou
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Patent number: 6947629Abstract: A feedback control system for an optical switch includes a reference mirror that reflects a signal wavelength of light and transmits a reference wavelength. A detector array indicates positions, on the reference mirror, of first and second reference light beams transmitted through the reference mirror onto the detector array. An array of adjustable mirrors is controlled by a controller for adjusting each mirror in the array. The controller receives the position of the first reference light beam and adjusts a first mirror so that the first position is moved to a pre-determined location on the detector array, and receives the position of the second reference light beam and adjusts a second mirror so that the second position is moved to the same pre-determined location on the detector array, forming an aligned optical path on which a signal light beam can be transmitted through the optical switch.Type: GrantFiled: March 7, 2003Date of Patent: September 20, 2005Assignee: Transoptix, Inc.Inventors: Charles Chu, Jingyu Zhou, Michael Young
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Patent number: 6937783Abstract: An optical cross-connect switch includes a switching mirror, a lens mount for securing an optical fiber collimating lens so that a light path from the optical fiber collimating lens is in an alignment relative to the switching mirror and a second lens, and an actuator. The actuator is connected to the switching mirror. The actuator comprises a flexure, and a mechanical motion amplifier. The switching mirror is attached to the mechanical motion amplifier in a thermally stable manner. Mechanical motion of the actuator is damped using a damping fluid. Repeatability of actuator motion is provided for switching the switching mirror into and out of the light path.Type: GrantFiled: October 28, 2002Date of Patent: August 30, 2005Inventors: Charles Chu, Jingyu Zhou
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Publication number: 20040057656Abstract: An optical communication system includes an input optical fiber, an output optical fiber, and first and second Risley prism pairs disposed in an optical path between the input optical fiber and the output optical fiber. A first actuator is configured to independently rotate a first and a second prism of the first Risley prism pair so that a first light beam is steered to be incident on the second Risley prism pair by adjusting the first Risley prism pair. A second actuator is configured to independently rotate a third and a fourth prism of the second Risley prism pair so that a second light beam is steered to be incident on the first Risley prism pair by adjusting the second Risley prism pair, providing optical beam alignment of the optical path for communication and optical switching.Type: ApplicationFiled: March 20, 2003Publication date: March 25, 2004Applicant: Advanced Optical MEMS, Inc.Inventors: Charles Chu, Tsu-Chin Tsao, Jingyu Zhou, Michael Young
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Publication number: 20040057658Abstract: A feedback control system for an optical switch includes a reference mirror that reflects a signal wavelength of light and transmits a reference wavelength. A detector array indicates positions, on the reference mirror, of first and second reference light beams transmitted through the reference mirror onto the detector array. An array of adjustable mirrors is controlled by a controller for adjusting each mirror in the array. The controller receives the position of the first reference light beam and adjusts a first mirror so that the first position is moved to a pre-determined location on the detector array, and receives the position of the second reference light beam and adjusts a second mirror so that the second position is moved to the same pre-determined location on the detector array, forming an aligned optical path on which a signal light beam can be transmitted through the optical switch.Type: ApplicationFiled: March 7, 2003Publication date: March 25, 2004Applicant: Advanced Optical MEMS, Inc.Inventors: Charles Chu, Jingyu Zhou, Michael Young
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Publication number: 20040052526Abstract: An agile network is provided with a layered control system for maintaining a network-wide target performance parameter (e.g. power) along all end-to-end connections. A connection is controlled at the physical layer using optical control loops that have a concatenated response based on a set of loop time constants. The network is separated into gain based span loops and power based switch loops; each link has a gain profile, and requires a per-wavelength power target as the output power target for the switch loop at the start of the link. Use of achievable gain for the span loops allow to optimize the performance of the link. Use of individual achievable power targets allows each switch loop to autonomously ramp on and off channels without causing interference with existing and other ramping channels. A loop control uses a model-based rules block, to distribute control signals to an optical section encompassing a plurality of optical components.Type: ApplicationFiled: September 16, 2002Publication date: March 18, 2004Inventors: Kevan Peter Jones, Mark Stephen Wight, Hock Gin Lim, Paul Edward Beer, Clarence Kwok-Yan Kan, Aihua Yu, Sheldon Walklin, Jingyu Zhou, Paul Po-Wan Chan, David Andrew Whittaker, Kinh Minh Pham, Robert M. Kimball, Christian Scheerer, Alan Glen Solheim
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Publication number: 20030228090Abstract: An optical cross-connect switch includes a switching mirror, a lens mount for securing an optical fiber collimating lens so that a light path from the optical fiber collimating lens is in an alignment relative to the switching mirror and a second lens, and an actuator. The actuator is connected to the switching mirror. The actuator comprises a flexure, and a mechanical motion amplifier. The switching mirror is attached to the mechanical motion amplifier in a thermally stable manner. Mechanical motion of the actuator is damped using a damping fluid. Repeatability of actuator motion is provided for switching the switching mirror into and out of the light path.Type: ApplicationFiled: October 28, 2002Publication date: December 11, 2003Applicant: Advanced Optical MEMS, Inc.Inventors: Charles Chu, Jingyu Zhou
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Publication number: 20030016411Abstract: A method for engineering of a connection in a WDM photonic network with a plurality of flexibility sites connected by links comprises calculating a physical end-to-end route between a source node and a destination node and setting-up a communication path along this end-to-end route. An operational parameter of the communication path is continuously tested and compared with a test threshold. The path is declared established whenever the operational parameter is above the margin tolerance. The established path is continuously monitored by comparing the operational parameter with a maintenance threshold. A regenerator is switched into the path whenever the operational parameter is under the respective threshold, or another path is assigned to the respective connection. An adaptive channel power turn-on procedure provides for increasing gradually the power level of the transmitters in the path while measuring an error quantifier at the destination receiver until a preset error quantifier value is reached.Type: ApplicationFiled: May 31, 2002Publication date: January 23, 2003Inventors: Jingyu Zhou, Alan Glen Solheim, Robert Au-Yang, Mark Stephen Wight, Christian Scheerer
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Publication number: 20030016410Abstract: A method for engineering of a connection in a WDM photonic network with a plurality of flexibility sites connected by links comprises calculating a physical end-to-end route between a source node and a destination node and setting-up a communication path along said end-to-end route. An operational parameter of said communication path is continuously tested and compared with a test threshold. The path is declared established whenever the operational parameter is above said margin tolerance. The established communication path is continuously monitored by comparing the operational parameter with a maintenance threshold. A regenerator is switched into the path whenever the operational parameter is under the respective threshold, or another path is assigned to the respective connection.Type: ApplicationFiled: August 15, 2001Publication date: January 23, 2003Applicant: Innovance NetworksInventors: Jingyu Zhou, Alan Glen Solheim, Robert Au-Yang, Mark Stephen Wight, Christian Scheerer
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Patent number: 5774242Abstract: A performance evaluation analysis for optical transmission systems is disclosed. A reference eye mask is defined for a transmitter and for a reference optical transmission link. The quality of the transmission for a live path is determined by applying the reference eye mask on the eye diagram of the electrical signal recovered at a point of measurement with a distortion measurement unit. The point of measurement could be established at a receiver optical connection plane, for measuring the optical transmission link and transmitter penalty, or could be at the optical connection plane of a transmitter, for measuring the performance of the transmitter. The optical path may include optical amplifiers, dispersion compensating modules, active and passive components.Type: GrantFiled: January 15, 1997Date of Patent: June 30, 1998Assignee: Northern Telecom LimitedInventors: Maurice Stephen O'Sullivan, Rongqing Hui, Jingyu Zhou