Patents by Inventor Hao Qin
Hao Qin 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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Patent number: 10650599Abstract: The present disclosure includes methods and systems for rendering digital images of a virtual environment utilizing full path space learning. In particular, one or more embodiments of the disclosed systems and methods estimate a global light transport function based on sampled paths within a virtual environment. Moreover, in one or more embodiments, the disclosed systems and methods utilize the global light transport function to sample additional paths. Accordingly, the disclosed systems and methods can iteratively update an estimated global light transport function and utilize the estimated global light transport function to focus path sampling on regions of a virtual environment most likely to impact rendering a digital image of the virtual environment from a particular camera perspective.Type: GrantFiled: July 6, 2018Date of Patent: May 12, 2020Assignee: ADOBE INC.Inventors: Xin Sun, Nathan Carr, Hao Qin
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Publication number: 20200104589Abstract: Some implementations of the disclosure involve, at a device having one or more processors, one or more image sensors, and an illumination source, detecting a first attribute of an eye based on pixel differences associated with different wavelengths of light in a first image of the eye. These implementations next determine a first location associated with the first attribute in a three dimensional (3D) coordinate system based on depth information from a depth sensor. Various implementations detect a second attribute of the eye based on a glint resulting from light of the illumination source reflecting off a cornea of the eye. These implementations next determine a second location associated with the second attribute in the 3D coordinate system based on the depth information from the depth sensor, and determine a gaze direction in the 3D coordinate system based on the first location and the second location.Type: ApplicationFiled: September 13, 2019Publication date: April 2, 2020Inventors: Tom Sengelaub, Hua Gao, Hao Qin, Julia Benndorf
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Patent number: 10330213Abstract: Provided is an electromechanical-linkage hydraulic control gate valve actuator. The actuator includes a hand-operated speed-increasing gearbox assembly and a bidirectional throttle valve. In the present invention, a motor is driven to rotate through the hand-operated speed-increasing gearbox and thus a hydraulic system is driven to finally open and close a gate valve. An opening and closing speeds of the gate valve can be regulated and controlled through the bidirectional throttle valve. The present invention drives the motor through the hand-operated speed-increasing gearbox under emergency conditions such as repair and power failure, thereby controlling to open and close the gate valve. Meanwhile, a hydraulic system respectively regulates the speeds of two states of opening and closing through a bidirectional throttling technique, so as to effectively eliminate a water hammer phenomenon. The present invention has simple structure, light weight and modular installation, and enhances safety and reliability.Type: GrantFiled: September 17, 2018Date of Patent: June 25, 2019Assignee: Taiyuan University of TechnologyInventors: Ziming Kou, Guijun Gao, Yanfei Kou, Gongjun Cui, Jing Zhang, Hao Qin, Sijia Meng, Jing Liu, Liangji Zhao
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Publication number: 20190133440Abstract: The invention relates to an eye tracking system (10) and a method for operating an eye tracking system (10) for determining if one of a left and a right eye of a user is dominant, wherein at least one image of the left and the right eye of the user is captured (S30), based on the at least one image and according to a predefined accuracy function a left accuracy score for the left eye (S34a) and a right accuracy score for the right eye (S34c) is determined and it is determined if one of the left and the right eye of the user is dominant in dependency of at least the left and the right accuracy score (S36). Thereby user-specific properties relating to his eyes can be provided and considered when performing eye tracking so that the robustness and accuracy of eye tracking can be enhanced.Type: ApplicationFiled: June 14, 2018Publication date: May 9, 2019Inventors: Kun Liu, Walter Nistico, Hao Qin
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Publication number: 20190017618Abstract: Provided is an electromechanical-linkage hydraulic control gate valve actuator. The actuator includes a hand-operated speed-increasing gearbox assembly and a bidirectional throttle valve. In the present invention, a motor is driven to rotate through the hand-operated speed-increasing gearbox and thus a hydraulic system is driven to finally open and close a gate valve. An opening and closing speeds of the gate valve can be regulated and controlled through the bidirectional throttle valve. The present invention drives the motor through the hand-operated speed-increasing gearbox under emergency conditions such as repair and power failure, thereby controlling to open and close the gate valve. Meanwhile, a hydraulic system respectively regulates the speeds of two states of opening and closing through a bidirectional throttling technique, so as to effectively eliminate a water hammer phenomenon. The present invention has simple structure, light weight and modular installation, and enhances safety and reliability.Type: ApplicationFiled: September 17, 2018Publication date: January 17, 2019Inventors: Ziming KOU, Guijun GAO, Yanfei KOU, Gongjun CUI, Jing ZHANG, Hao QIN, Sijia MENG, Jing LIU, Liangji ZHAO
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Publication number: 20180315251Abstract: The present disclosure includes methods and systems for rendering digital images of a virtual environment utilizing full path space learning. In particular, one or more embodiments of the disclosed systems and methods estimate a global light transport function based on sampled paths within a virtual environment. Moreover, in one or more embodiments, the disclosed systems and methods utilize the global light transport function to sample additional paths. Accordingly, the disclosed systems and methods can iteratively update an estimated global light transport function and utilize the estimated global light transport function to focus path sampling on regions of a virtual environment most likely to impact rendering a digital image of the virtual environment from a particular camera perspective.Type: ApplicationFiled: July 6, 2018Publication date: November 1, 2018Inventors: Xin Sun, Nathan Carr, Hao Qin
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Patent number: 10062214Abstract: The present disclosure includes methods and systems for rendering digital images of a virtual environment utilizing full path space learning. In particular, one or more embodiments of the disclosed systems and methods estimate a global light transport function based on sampled paths within a virtual environment. Moreover, in one or more embodiments, the disclosed systems and methods utilize the global light transport function to sample additional paths. Accordingly, the disclosed systems and methods can iteratively update an estimated global light transport function and utilize the estimated global light transport function to focus path sampling on regions of a virtual environment most likely to impact rendering a digital image of the virtual environment from a particular camera perspective.Type: GrantFiled: September 27, 2016Date of Patent: August 28, 2018Assignee: ADOBE SYSTEMS INCORPORATEDInventors: Xin Sun, Nathan Carr, Hao Qin
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Patent number: 10016131Abstract: The invention relates to an eye tracking system (10) and a method for operating an eye tracking system (10) for determining if one of a left and a right eye of a user is dominant, wherein at least one image of the left and the right eye of the user is captured (S30), based on the at least one image and according to a predefined accuracy function a left accuracy score for the left eye (S34a) and a right accuracy score for the right eye (S34c) is determined and it is determined if one of the left and the right eye of the user is dominant in dependency of at least the left and the right accuracy score (S36). Thereby user-specific properties relating to his eyes can be provided and considered when performing eye tracking so that the robustness and accuracy of eye tracking can be enhanced.Type: GrantFiled: October 7, 2015Date of Patent: July 10, 2018Assignee: SENSOMOTORIC INSTRUMENTS GESELLSCHAFT FUR INNOVATIVE SENSORIK MBHInventors: Kun Liu, Walter Nistico, Hao Qin
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Publication number: 20180089894Abstract: The present disclosure includes methods and systems for rendering digital images of a virtual environment utilizing full path space learning. In particular, one or more embodiments of the disclosed systems and methods estimate a global light transport function based on sampled paths within a virtual environment. Moreover, in one or more embodiments, the disclosed systems and methods utilize the global light transport function to sample additional paths. Accordingly, the disclosed systems and methods can iteratively update an estimated global light transport function and utilize the estimated global light transport function to focus path sampling on regions of a virtual environment most likely to impact rendering a digital image of the virtual environment from a particular camera perspective.Type: ApplicationFiled: September 27, 2016Publication date: March 29, 2018Inventors: Xin Sun, Nathan Carr, Hao Qin
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Patent number: 9922080Abstract: In one example in accordance with the present disclosure, a method for determining query plans includes obtaining a current query and generating a first literal and a first signature key from the current query. The method includes determining that the first signature key matches a second signature key stored in a parser cache and obtaining a literals data structure corresponding to the second signature key. The literals data structure comprises a group of literals, a list of high and low boundary intervals and a parameterization indicator. The method includes identifying, using the parameterization indicator, a parameterized literal in the group of literals. The method includes determining that a high and low boundary interval for the second parameterized literal contains the first literal and executing a stored query plan on the current query.Type: GrantFiled: June 11, 2015Date of Patent: March 20, 2018Assignee: Hewlett Packard Enterprise Development LPInventors: Qifan Chen, Hao Qin, Taoufik Ben Abdellatif
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Publication number: 20170340205Abstract: The invention relates to an eye tracking system (10) and a method for operating an eye tracking system (10) for determining if one of a left and a right eye of a user is dominant, wherein at least one image of the left and the right eye of the user is captured (S30), based on the at least one image and according to a predefined accuracy function a left accuracy score for the left eye (S34a) and a right accuracy score for the right eye (S34c) is determined and it is determined if one of the left and the right eye of the user is dominant in dependency of at least the left and the right accuracy score (S36). Thereby user-specific properties relating to his eyes can be provided and considered when performing eye tracking so that the robustness and accuracy of eye tracking can be enhanced.Type: ApplicationFiled: October 7, 2015Publication date: November 30, 2017Applicant: SENSOMOTORIC INSTRUMENTS GESELLSCHAFT FUR INNOVATIVE SENSORIK MBHInventors: Kun LIU, Walter NISTICO, Hao QIN
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Publication number: 20160364447Abstract: In one example in accordance with the present disclosure, a method for determining query plans includes obtaining a current query and generating a first literal and a first signature key from the current query. The method includes determining that the first signature key matches a second signature key stored in a parser cache and obtaining a literals data structure corresponding to the second signature key. The literals data structure comprises a group of literals, a list of high and low boundary intervals and a parameterization indicator. The method includes identifying, using the parameterization indicator, a parameterized literal in the group of literals. The method includes determining that a high and low boundary interval for the second parameterized literal contains the first literal and executing a stored query plan on the current query.Type: ApplicationFiled: June 11, 2015Publication date: December 15, 2016Inventors: Qifan Chen, Hao Qin, Taoufik Ben Abdellatif
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Patent number: 8487119Abstract: The present invention relates to new organic sensitizer compounds and to photoelectric conversion devices, in particular dye-sensitised solar cells comprising the new sensitizers. The present invention also relates to flexible photoelectric conversion devices, which are based on ionic liquid electrolytes or organic charge transporting materials.Type: GrantFiled: February 3, 2009Date of Patent: July 16, 2013Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)Inventors: Mingfei Xu, Hao Qin, Feifei Gao, Peng Wang, Shaik Mohammad Zakeeruddin, Michael Graetzel
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Publication number: 20110041907Abstract: The present invention relates to new organic sensitizer compounds and to photoelectric conversion devices, in particular dye-sensitised solar cells comprising the new sensitizers. The present invention also relates to flexible photoelectric conversion devices, which are based on ionic liquid electrolytes or organic charge transporting materials.Type: ApplicationFiled: February 3, 2009Publication date: February 24, 2011Inventors: Mingfei Xu, Hao Qin, Feifei Gao, Peng Wang, Shaik Mohammad Zakeeruddin, Michael Graetzel