Patents by Inventor Chengyu ZHU
Chengyu ZHU 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: 11959796Abstract: A system comprises a faceted structure imaging assembly and a faceted structure image analyzer. The system is configured to determine carat weight of a gemstone while in a mounted setting. In a first mode, the imaging assembly obtains a first image of a top gemstone surface. The image analyzer uses the first image to obtain at least one gemstone dimension, such as table and diameter dimensions. In a second mode, the imaging assembly obtains a second image of the top gemstone surface while a colored light pattern is reflected onto the gemstone. The image analyzer uses the second image to obtain at least one other gemstone dimension, such as crown and pavilion angles. The image analyzer uses the dimensions obtained from the first and second images to determine weight information of the gemstone. The system quickly determines gemstone weight reliably and consistently without skilled gemologists or removal from the setting.Type: GrantFiled: January 27, 2023Date of Patent: April 16, 2024Assignee: The RealReal, Inc.Inventors: Loretta Catherine Castoro, Meghan Elizabeth Ryterski, Matthew Bryan Heger, Ludovico Borghi, Emily Elizabeth Calara English, Chengyu Zhu, Jose Sasian
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Patent number: 11579008Abstract: A system comprises a faceted structure imaging assembly and a faceted structure image analyzer. The system is configured to determine carat weight of a gemstone while in a mounted setting. In a first mode, the imaging assembly obtains a first image of a top gemstone surface. The image analyzer uses the first image to obtain at least one gemstone dimension, such as table and diameter dimensions. In a second mode, the imaging assembly obtains a second image of the top gemstone surface while a colored light pattern is reflected onto the gemstone. The image analyzer uses the second image to obtain at least one other gemstone dimension, such as crown and pavilion angles. The image analyzer uses the dimensions obtained from the first and second images to determine weight information of the gemstone. The system quickly determines gemstone weight reliably and consistently without skilled gemologists or removal from the setting.Type: GrantFiled: January 26, 2022Date of Patent: February 14, 2023Assignee: The RealReal, Inc.Inventors: Loretta Catherine Castoro, Meghan Elizabeth Ryterski, Matthew Bryan Heger, Ludovico Borghi, Emily Elizabeth Calara English, Chengyu Zhu, Jose Sasian
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Patent number: 11327026Abstract: A system comprises a faceted structure imaging assembly and a faceted structure image analyzer. Signature information of the gemstone is obtained and compared to stored signature information. The signature information includes angular spectrum information generated by the imaging assembly while a colored light pattern is reflected onto the gemstone. The signature information uniquely identifies the gemstone and indicates whether an entity was the source of the gemstone. The signature information comparison involves comparing an angular spectrum image obtained by the imaging assembly to stored angular spectrum images. In one example, the system compares the obtained signature information to stored signature information to validate a source of the gemstone. In another example, the system obtains signature information of the gemstone and forwards the signature information to a remote validation system.Type: GrantFiled: April 29, 2019Date of Patent: May 10, 2022Assignee: The RealReal, Inc.Inventors: Loretta Catherine Castoro, Meghan Elizabeth Ryterski, Matthew Bryan Heger, Ludovico Borghi, Emily Elizabeth Calara English, Chengyu Zhu, Jose Sasian
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Patent number: 11248947Abstract: A system comprises a faceted structure imaging assembly and a faceted structure image analyzer. The system is configured to determine carat weight of a gemstone while in a mounted setting. In a first mode, the imaging assembly obtains a first image of a top gemstone surface. The image analyzer uses the first image to obtain at least one gemstone dimension, such as table and diameter dimensions. In a second mode, the imaging assembly obtains a second image of the top gemstone surface while a colored light pattern is reflected onto the gemstone. The image analyzer uses the second image to obtain at least one other gemstone dimension, such as crown and pavilion angles. The image analyzer uses the dimensions obtained from the first and second images to determine weight information of the gemstone. The system quickly determines gemstone weight reliably and consistently without skilled gemologists or removal from the setting.Type: GrantFiled: October 19, 2020Date of Patent: February 15, 2022Assignee: The RealReal, Inc.Inventors: Loretta Catherine Castoro, Meghan Elizabeth Ryterski, Matthew Bryan Heger, Ludovico Borghi, Emily Elizabeth Calara English, Chengyu Zhu, Jose Sasian
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Patent number: 10809117Abstract: A system comprises a faceted structure imaging assembly and a faceted structure image analyzer. The system is configured to determine carat weight of a gemstone while in a mounted setting. In a first mode, the imaging assembly obtains a first image of a top gemstone surface. The image analyzer uses the first image to obtain at least one gemstone dimension, such as table and diameter dimensions. In a second mode, the imaging assembly obtains a second image of the top gemstone surface while a colored light pattern is reflected onto the gemstone. The image analyzer uses the second image to obtain at least one other gemstone dimension, such as crown and pavilion angles. The image analyzer uses the dimensions obtained from the first and second images to determine weight information of the gemstone. The system quickly determines gemstone weight reliably and consistently without skilled gemologists or removal from the setting.Type: GrantFiled: April 29, 2019Date of Patent: October 20, 2020Assignee: The RealReal, Inc.Inventors: Loretta Catherine Castoro, Meghan Elizabeth Ryterski, Matthew Bryan Heger, Ludovico Borghi, Emily Elizabeth Calara English, Chengyu Zhu, Jose Sasian
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Patent number: 10712380Abstract: A method for fabricating a semiconductor structure includes when a chip under test releases an ESD current, detecting position information of photons emitted from the chip under test due to releasing of the ESD current; acquiring an image of an ESD path based on the detected position information of the photons; and determining whether the ESD path corresponding to the chip under test is normal based on the image of the ESD path and a layout image of the chip under test.Type: GrantFiled: June 5, 2018Date of Patent: July 14, 2020Assignees: Semiconductor Manufacturing International (Shanghai) Corporation, Semiconductor Manufacturing International (Beijing) CorporationInventors: Jun Wang, Gang Ning Wang, Mi Tang, Xian Yong Pu, Chengyu Zhu
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Publication number: 20180348279Abstract: A method for fabricating a semiconductor structure includes when a chip under test releases an ESD current, detecting position information of photons emitted from the chip under test due to releasing of the ESD current; acquiring an image of an ESD path based on the detected position information of the photons; and determining whether the ESD path corresponding to the chip under test is normal based on the image of the ESD path and a layout image of the chip under test.Type: ApplicationFiled: June 5, 2018Publication date: December 6, 2018Inventors: Jun WANG, Gang Ning WANG, Mi TANG, Xian Yong PU, Chengyu ZHU