Patents by Inventor Dan Ding
Dan Ding 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: 12579192Abstract: Methods, systems, and computer-readable storage media for receiving, from a database client, an asynchronous lookup request including a key representative of a query and, in response, returning a value handle including a value promise, receiving, from the database client, a get request based on the value promise, determining that a query result corresponding to the key is unavailable in a results cache and that the key is in an unlocked state, and in response, returning a null pointer and a first key lock status to the first database client, receiving, from the database client, a key, value pair including the key and a value, the value comprising the query result, and storing the key, value pair in the results cache.Type: GrantFiled: June 29, 2023Date of Patent: March 17, 2026Assignee: SAP SEInventors: Norman May, Dan Ding, Zhe Qu, Fei Qiu
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Patent number: 12493602Abstract: The present disclosure provides more efficient techniques for removing a host from a multi-host database system. An instruction to remove a host system may be received. In response, a determination of whether the first host system does or does not store any source tables is made based on a host-type identifier for the host system. This determination may not require obtaining landscape information for each of the hosts in the database system. If the host system stores replica tables and does not store source tables, those replica tables may be dropped based on the determination that the first host system does not store any source tables. As such, in cases where table redistribution is not needed the landscape information is not obtained, thereby making the host removal process more efficient.Type: GrantFiled: September 8, 2022Date of Patent: December 9, 2025Assignee: SAP SEInventors: Hans-Joerg Leu, Dan Ding, Srinivas Gajjalakonda, Fei Qiu, Carsten Mueller, Alexander Schroeder
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Publication number: 20250284687Abstract: A database management system generates a cache entry system view of a database cache. Also, a new column is generated for the cache entry system view, where the new column is an ENTRY_HASH column to identify each entry of the database cache. In an example, the database management system detects a request to remove a given entry of the database cache, where the request includes a given ENTRY_HASH value to locate the given entry of the database cache. In response to receiving the request, the database management system identifies the given entry of the database cache based on the given ENTRY_HASH value. Then, the database management system removes the given entry of the database cache. Also, the database management system notifies a cache manager that the given entry has been removed.Type: ApplicationFiled: March 8, 2024Publication date: September 11, 2025Inventors: Norman May, Dan Ding, Zhe Qu, Fei Qiu, Zhilong Hao, Jiaxin Liu, Jiao Chen
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Publication number: 20250005078Abstract: Methods, systems, and computer-readable storage media for receiving, from a database client, an asynchronous lookup request including a key representative of a query and, in response, returning a value handle including a value promise, receiving, from the database client, a get request based on the value promise, determining that a query result corresponding to the key is unavailable in a results cache and that the key is in an unlocked state, and in response, returning a null pointer and a first key lock status to the first database client, receiving, from the database client, a key, value pair including the key and a value, the value comprising the query result, and storing the key, value pair in the results cache.Type: ApplicationFiled: June 29, 2023Publication date: January 2, 2025Inventors: Norman May, Dan Ding, Zhe Qu, Fei Qiu
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Publication number: 20240086386Abstract: The present disclosure provides more efficient techniques for removing a host from a multi-host database system. An instruction to remove a host system may be received. In response, a determination of whether the first host system does or does not store any source tables is made based on a host-type identifier for the host system. This determination may not require obtaining landscape information for each of the hosts in the database system. If the host system stores replica tables and does not store source tables, those replica tables may be dropped based on the determination that the first host system does not store any source tables. As such, in cases where table redistribution is not needed the landscape information is not obtained, thereby making the host removal process more efficient.Type: ApplicationFiled: September 8, 2022Publication date: March 14, 2024Inventors: Hans-Joerg Leu, Dan Ding, Srinivas Gajjalakonda, Fei Qiu, Carsten Mueller, Alexander Schroeder
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Patent number: 11899645Abstract: A two phase move technique for moving groups of tables may reduce cross-host communication and length of table locks. A group including a first table and a second table may be moved to the destination host system. This is done by creating a third table replicating the first table and creating a fourth table replicating the second table on the destination host, and replicas of other tables in the group. The tables in the group are not locked against modifications during the creation of the replica tables. After the creation of the replicas, roles of the original tables and the created tables are switched such that the original tables are set to the replica role and the created tables stored on the destination are set to the source role. The original tables are dropped after the switching of the roles.Type: GrantFiled: September 9, 2022Date of Patent: February 13, 2024Assignee: SAP SEInventors: Fei Qiu, Hans-Joerg Leu, Srinivas Gajjalakonda, Dan Ding
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Patent number: 11389446Abstract: A theranostic agent can be used in both photoacoustic imaging (PAI) and photothermal therapy (PTT) applications. The theranostic agent can include a small molecule, organic compound with absorption in the near-infrared (NIR) interrogation window (700-900 nm). The compound can be a biocompatible organic nanoparticle (ONP). The theranostic agent can be effectively used in PAI and PAI-guided PTT applications. The theranostic agent can be administered to a patient to locate a tumor site in the patient using in vivo imaging techniques. Once the tumor site has been determined, the tumor site can be irradiated with near-infrared light to stop or inhibit the growth of the tumor.Type: GrantFiled: May 14, 2018Date of Patent: July 19, 2022Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Benzhong Tang, Dan Ding, Ji Qi
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Patent number: 10753941Abstract: The development of fluorescent bioprobes comprising organic fluorescent compounds that exhibit aggregation induced emission (AIE) properties, methods of producing the same, and their practical applications for in vitro and in vivo bioimaging.Type: GrantFiled: September 3, 2012Date of Patent: August 25, 2020Assignees: The Hong Kong University of Science and Technology, National University of SingaporeInventors: Benzhong Tang, Wei Qin, Jianzhao Liu, Sijie Chen, Tsz Kin Kwok, Bin Liu, Kai Li, Dan Ding, Haibin Shi, Jun Long Geng, Jingzhi Sun, Anjun Qin, Qiuli Zhao
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Publication number: 20200147078Abstract: A theranostic agent can be used in both photoacoustic imaging (PAI) and photothermal therapy (PTT) applications. The theranostic agent can include a small molecule, organic compound with absorption in the near-infrared (NIR) interrogation window (700-900 nm). The compound can be a biocompatible organic nanoparticle (ONP). The theranostic agent can be effectively used in PAI and PAI-guided PTT applications. The theranostic agent can be administered to a patient to locate a tumor site in the patient using in vivo imaging techniques. Once the tumor site has been determined, the tumor site can be irradiated with near-infrared light to stop or inhibit the growth of the tumor.Type: ApplicationFiled: May 14, 2018Publication date: May 14, 2020Inventors: Benzhong TANG, Dan DING, Ji QI
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Patent number: 9109155Abstract: The development of a series of fluorescent materials including heterocycle-functionalized luminogens with aggregation-induced/enhanced emission (AIE/AEE), long wavelength emission, and high solid state fluorescence quantum efficiency is contemplated. The described fluorescent materials are promising candidates in selective luminescence-based chemosensor for Hg2+ or ATP, fluorescent staining for mitochondria in living cells with high photostability, stimuli-responsive luminescent materials, and materials for optical waveguides. In addition, these heterocycle-functionalized luminogens are particularly useful as fluorescent labels for biopolymers such as peptides, antibodies, or nucleic acids, making them useful as AIE-active biocompatible probes for clinical cancer imaging and diagnostics.Type: GrantFiled: May 24, 2013Date of Patent: August 18, 2015Assignees: The Hong Kong University of Science and Technology, National University of SingaporeInventors: Benzhong Tang, Wing Yip Lam, Na Zhao, Min Li, Bin Liu, Haibin Shi, Dan Ding
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Publication number: 20150175747Abstract: A series of conjugated polymer-based nanoparticles having far-red/near infrared emission ranges are disclosed. Cross coupling methods to prepare the conjugated polymers and methods of nanoparticle preparation are also discussed. The conjugated polymer nanoparticles are used as FR/NIR fluorescent probes in in vitro and in vivo biosensing and bioimaging applications, and are also used in photoacoustic imaging as contrast agents. Finally, use of the conjugated polymer nanoparticles in photothermal therapy is described.Type: ApplicationFiled: July 25, 2013Publication date: June 25, 2015Inventors: Bin Liu, Jie Liu, Dan Ding, Junlong Geng, Lun-de Liao
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Publication number: 20140348753Abstract: The development of a series of fluorescent materials including heterocycle-functionalized luminogens with aggregation-induced/enhanced emission (AIE/AEE), long wavelength emission, and high solid state fluorescence quantum efficiency is contemplated. The described fluorescent materials are promising candidates in selective luminescence-based chemosensor for Hg2+ or ATP, fluorescent staining for mitochondria in living cells with high photostability, stimuli-responsive luminescent materials, and materials for optical waveguides. In addition, these heterocycle-functionalized luminogens are particularly useful as fluorescent labels for biopolymers such as peptides, antibodies, or nucleic acids, making them useful as AIE-active biocompatible probes for clinical cancer imaging and diagnostics.Type: ApplicationFiled: May 24, 2013Publication date: November 27, 2014Inventors: Benzhong TANG, Wing Yip LAM, Na ZHAO, Min LI, Bin LIU, Haibin SHI, Dan DING
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Publication number: 20140328764Abstract: The development of fluorescent bioprobes comprising organic fluorescent compounds that exhibit aggregation induced emission (AIE) properties, methods of producing the same, and their practical applications for in vitro and in vivo bioimaging.Type: ApplicationFiled: September 3, 2012Publication date: November 6, 2014Applicants: NATIONAL UNIVERSITY OF SINGAPORE, THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Benzhong Tang, Wei Qin, Jianzhao Liu, Sijie Chen, Tsz Kin Kwok, Bin Liu, Kai Li, Dan Ding, Haibin Shi, Jun Long Geng, Jingzhi Sun, Anjun Qin, Qiuli Zhao
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Publication number: 20130109029Abstract: The present invention relates to conjugated polyelectrolyte (CPE) or oligoelectrolyte (COE) compounds represented by general structural formulae (I)-(IV), or a salt thereof and methods of using these compounds to detect targets in samples.Type: ApplicationFiled: June 29, 2011Publication date: May 2, 2013Applicant: NATIONAL UNIVERSITY OF SINGAPOREInventors: Bin Liu, Kanyi Pu, Kai Li, Liping Cai, Yanyan Wang, Dan Ding
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Publication number: 20090017865Abstract: A portable electronic device includes call circuitry operable to establish a communication link over a plurality of different communication networks, and a logic circuit operatively coupled to said call circuitry. The logic circuit operative to automatically select a communication network of the plurality of different communication networks prior to establishing the communication link, said selection based on a predefined user preference.Type: ApplicationFiled: July 13, 2007Publication date: January 15, 2009Applicant: SONY ERICSSON MOBILE COMMUNICATIONS ABInventors: Gary Cole, Charles Liu, Dan Ding