Patents by Inventor Yirong Xu
Yirong Xu 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: 20250227917Abstract: The present disclosure provides a semiconductor device and a method of fabricating the same, including a substrate, a plurality of bit lines, a plurality of first spacer structures and a plurality of second spacer structures. The substrate includes a plurality of active areas. The bit lines are disposed on the substrate, across the active areas. The first spacer structures are respectively disposed on two opposite sidewalls of each of the bit lines, respectively. The second spacer structures are disposed on the substrate and connect to ends of the first spacer structures respectively, wherein materials of the first spacer structures are at least partially different from that of the second spacer structures.Type: ApplicationFiled: April 29, 2024Publication date: July 10, 2025Applicant: Fujian Jinhua Integrated Circuit Co., Ltd.Inventors: Janbo Zhang, Yirong Xu, Li-Wei Feng
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Publication number: 20250227921Abstract: The invention discloses a semiconductor structure, comprising: a substrate comprising a first region and a second region, a gate structure disposed on the substrate structure of the second region, a sidewall structure disposed on two sides and top surface of the gate structure, a first dielectric layer disposed on the sidewall structure, a second dielectric layer disposed on the first dielectric layer, a first insulating structure disposed in the second dielectric layer, and a second insulating structure penetrating through the first insulating structure.Type: ApplicationFiled: April 8, 2024Publication date: July 10, 2025Applicant: Fujian Jinhua Integrated Circuit Co., Ltd.Inventors: Li-Wei Feng, Yirong Xu, Janbo Zhang
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Patent number: 7873840Abstract: A system, method, and computer program product to automatically eliminate the distribution information available for reconstruction from a disguised dataset. The invention flattens input numerical values into a substantially uniformly distributed dataset, then maps the uniformly distributed dataset into equivalent data in a target distribution. The invention allows the incremental encryption of new values in an encrypted database while leaving existing encrypted values unchanged. The flattening comprises (1) partitioning, (2) mapping, and (3) saving auxiliary information about the data processing, which is encrypted and not updated. The partitioning is MDL based, and includes a growth phase for dividing a space into fine partitions and a prune phase for merging some partitions together.Type: GrantFiled: July 2, 2008Date of Patent: January 18, 2011Assignee: International Business Machines CorporationInventors: Rakesh Agrawal, Gerald George Kiernan, Srikant Ramakrishnan, Yirong Xu
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Publication number: 20080282096Abstract: A system, method, and computer program product to automatically eliminate the distribution information available for reconstruction from a disguised dataset. The invention flattens input numerical values into a substantially uniformly distributed dataset, then maps the uniformly distributed dataset into equivalent data in a target distribution. The invention allows the incremental encryption of new values in an encrypted database while leaving existing encrypted values unchanged. The flattening comprises (1) partitioning, (2) mapping, and (3) saving auxiliary information about the data processing, which is encrypted and not updated. The partitioning is MDL based, and includes a growth phase for dividing a space into fine partitions and a prune phase for merging some partitions together.Type: ApplicationFiled: July 2, 2008Publication date: November 13, 2008Inventors: Rakesh Agrawal, Gerald George Kiernan, Srikant Ramakrishnan, Yirong Xu
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Patent number: 7426752Abstract: A system, method, and computer program product to automatically eliminate the distribution information available for reconstruction from a disguised dataset. The invention flattens input numerical values into a substantially uniformly distributed dataset, then maps the uniformly distributed dataset into equivalent data in a target distribution. The invention allows the incremental encryption of new values in an encrypted database while leaving existing encrypted values unchanged. The flattening comprises (1) partitioning, (2) mapping, and (3) saving auxiliary information about the data processing, which is encrypted and not updated. The partitioning is MDL based, and includes a growth phase for dividing a space into fine partitions and a prune phase for merging some partitions together.Type: GrantFiled: January 5, 2004Date of Patent: September 16, 2008Assignee: International Business Machines CorporationInventors: Rakesh Agrawal, Gerald George Kiernan, Ramakrishnan Srikant, Yirong Xu
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Patent number: 7260566Abstract: A database including vertical tables useful for storing large numbers of objects having potentially thousands of attributes in, e.g., e-commerce applications. To support querying the vertical database using conventional SQL, a horizontal view over the underlying vertical tables is defined, and then queries are posed against the view. The queries are automatically transformed and executed against the vertical tables. If desired, the query results can be transformed back to a horizontal format. In this way, it appears to the user that a conventional horizontal data format is being used.Type: GrantFiled: March 3, 2004Date of Patent: August 21, 2007Assignee: International Business Machines CorporationInventors: Rakesh Agrawal, Amit Somani, Yirong Xu
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Publication number: 20050147240Abstract: A system, method, and computer program product to automatically eliminate the distribution information available for reconstruction from a disguised dataset. The invention flattens input numerical values into a substantially uniformly distributed dataset, then maps the uniformly distributed dataset into equivalent data in a target distribution. The invention allows the incremental encryption of new values in an encrypted database while leaving existing encrypted values unchanged. The flattening comprises (1) partitioning, (2) mapping, and (3) saving auxiliary information about the data processing, which is encrypted and not updated. The partitioning is MDL based, and includes a growth phase for dividing a space into fine partitions and a prune phase for merging some partitions together.Type: ApplicationFiled: January 5, 2004Publication date: July 7, 2005Inventors: Rakesh Agrawal, Gerald George Kiernan, Ramakrishnan Srikant, Yirong Xu
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Publication number: 20050071311Abstract: The present invention provides a method and system of partitioning authors on a given topic in a newsgroup into two opposite classes of the authors. In an exemplary embodiment, the method and system include identifying all links among the authors, where each link represents a response from one of the authors to another of the authors and analyzing the identified links, where the identified links are assumed to be more likely to be antagonistic links rather than non-antagonistic links. In an exemplary embodiment, the identifying includes assigning a vertex of a graph to each of the authors and assigning an edge of the graph to each interaction between two of the assigned vertices corresponding to two of the authors. In an exemplary embodiment, the analyzing includes solving a min-weight approximately balanced cut problem on a co-citation matrix of the graph, thereby generating the two opposite classes of the authors.Type: ApplicationFiled: September 30, 2003Publication date: March 31, 2005Inventors: Rakesh Agrawal, Sridhar Rajagopalan, Ramakrishnan Srikani, Yirong Xu
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Publication number: 20040177084Abstract: A database including vertical tables useful for storing large numbers of objects having potentially thousands of attributes in, e.g., e-commerce applications. To support querying the vertical database using conventional SQL, a horizontal view over the underlying vertical tables is defined, and then queries are posed against the view. The queries are automatically transformed and executed against the vertical tables. If desired, the query results can be transformed back to a horizontal format. In this way, it appears to the user that a conventional horizontal data format is being used.Type: ApplicationFiled: March 3, 2004Publication date: September 9, 2004Applicant: International Business Machines CorporationInventors: Rakesh Agrawal, Amit Somani, Yirong Xu
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Patent number: 6763350Abstract: A database including vertical tables useful for storing large numbers of objects having potentially thousands of attributes in, e.g., e-commerce applications. To support querying the vertical database using conventional SQL, a horizontal view over the underlying vertical tables is defined, and then queries are posed against the view. The queries are automatically transformed and executed against the vertical tables. If desired, the query results can be transformed back to a horizontal format. In this way, it appears to the user that a conventional horizontal data format is being used.Type: GrantFiled: June 1, 2001Date of Patent: July 13, 2004Assignee: International Business Machines CorporationInventors: Rakesh Agrawal, Amit Somani, Yirong Xu
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Publication number: 20030120680Abstract: A system, method, and business method for operating a computer as a server for directly providing content and services via a computer network, by assigning a URL to the computer, associating at least one directory in a storage device with the URL, directing access requests from said URL to the directory, and delivering requested content and services, potentially for revenue. The content may be dynamic and contained in a database. The services may include storing data. The directory may be replicated onto additional computers to which access requests may be directed. Access requests may be authenticated as coming from members of a peer group having access rights. The invention features a one-click process for publishing content to an intranet or the internet, and employs known file transfer protocols.Type: ApplicationFiled: November 15, 2002Publication date: June 26, 2003Inventors: Rakesh Agrawal, Roberto Javier Bayardo, Daniel Frederick Gruhl, Amit Somani, Ramakrishnan Srikant, Yirong Xu
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Publication number: 20030110189Abstract: A database including vertical tables useful for storing large numbers of objects having potentially thousands of attributes in, e.g., e-commerce applications. To support querying the vertical database using conventional SQL, a horizontal view over the underlying vertical tables is defined, and then queries are posed against the view. The queries are automatically transformed and executed against the vertical tables. If desired, the query results can be transformed back to a horizontal format. In this way, it appears to the user that a conventional horizontal data format is being used.Type: ApplicationFiled: June 1, 2001Publication date: June 12, 2003Applicant: International Business Machines CorporationInventors: Rakesh Agrawal, Amit Somani, Yirong Xu