Patents by Inventor Keying LIU
Keying LIU 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: 20230227870Abstract: The present invention discloses an enzymatic synthesis method of 1-palmitic acid-2-oleic acid-3-triglyceride stearate, belonging to the technical field of structured lipid processing. In the present invention, a crude product rich in 1-palmitic acid-2-oleic acid-3-triglyceride stearate is obtained by reacting for 2-10 h at 20-70° C. with 1-palmitic acid-2-diglyceride oleate as an acyl acceptor, stearic acid or a derivative thereof as an acyl donor and a lipase as a catalyst, wherein the reaction system is an inorganic or organic solvent reaction system. The present invention provides a highly efficient enzymatic synthesis method of POS, thereby resolving the disadvantage of low POS content and limited use provided by the current synthesizing product of structured lipid. The technology adopted by the present invention certainly has an application prospect in the process of preparing cocoa butter equivalents.Type: ApplicationFiled: August 5, 2022Publication date: July 20, 2023Inventors: Xiaosan WANG, Ye HUANG, Yifan WANG, Keying LIU, Ye CHEN
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Patent number: 11696131Abstract: Methods and apparatus for processing data packets originated from a mobile computing device to destinations at a wireless network node. The wireless network node receives an access request from the mobile computing device for the data packet transmission to the destinations and determines an identifier of the mobile computing device. The wireless network node then determines whether the identifier is in a wireless network node database. When the identifier is not in the wireless network node database, the wireless network node suspends to process data packets received from the mobile computing device and communicates with a server to determine whether status of the mobile computing device in a server database is the first state.Type: GrantFiled: July 23, 2021Date of Patent: July 4, 2023Assignee: Pismo Labs Technology LimitedInventors: Ho Ming Chan, Ka Kei Liu
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Publication number: 20230065361Abstract: The present disclosure discloses a method for increasing the usage efficiency of a lipase in the enzymatic reaction, belonging to the technical field of food processing. In the present disclosure, the peroxide value of raw materials required for enzymatic synthesis of a structured lipid is reduced by a distillation method or an adsorption method, and then the raw material and a lipase undergo catalytic reaction to synthesize the structured lipid, so as to maintain the activity of the lipase and increase the reuse rate of the enzyme. The distillation method includes deodorization and molecular distillation. The present disclosure provides a method for manufacturing a structured lipid by a high efficiency and low-cost enzymatic synthesis, addressing to the issues such as large enzyme consumption, expansive cost, low enzyme utilization rate in the traditional industrial production. Therefore, the method provided by the present disclosure has certain development potential and practical significance.Type: ApplicationFiled: July 28, 2022Publication date: March 2, 2023Inventors: Xiaosan WANG, Ye HUANG, Zhuoneng HUANG, Ye CHEN, Keying LIU, Yaqi HUANG, Xiaohan WANG, Ming CHANG
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Patent number: 11353396Abstract: Disclosed is a method for qualitative and quantitative determination of key substances in mixture based on terahertz spectrum. Terahertz spectrum of a reference mixture is trained through an SVR algorithm, and predicting parameters of key substances in the mixture to be determined after a model is generated. According to the method, an initial pure spectrum corresponding to each composition in the mixture does not need to be separately determined, no limitation on the number of samples contained in the mixture, and no limitation on frequency range to be determined, and the proportion requirement of the mixture in the early test stage is not limited, and the SVR model does not need to be re-trained after a database is formed in the later stage, and the result can be obtained immediately after the spectrum of item to be determined is introduced into the algorithm model.Type: GrantFiled: January 9, 2019Date of Patent: June 7, 2022Assignee: University of Shanghai for Science and TechnologyInventors: Yan Peng, Yiming Zhu, Chenjun Shi, Yujian Yang, Jiayu Zhao, Zhijia Liu, Xinyu Tang, Yang Liu, Lin Guo, Keying Liu, Songlin Zhuang
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Publication number: 20210352477Abstract: Methods and apparatus for processing data packets originated from a mobile computing device to destinations at a wireless network node. The wireless network node receives an access request from the mobile computing device for the data packet transmission to the destinations and determines an identifier of the mobile computing device. The wireless network node then determines whether the identifier is in a wireless network node database. When the identifier is not in the wireless network node database, the wireless network node suspends to process data packets received from the mobile computing device and communicates with a server to determine whether status of the mobile computing device in a server database is the first state.Type: ApplicationFiled: July 23, 2021Publication date: November 11, 2021Applicant: Pismo Labs Technology LimitedInventors: Ho Ming Chan, Ka Kei Liu
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Patent number: 11076287Abstract: Methods and apparatus for processing data packets originated from a mobile computing device to destinations at a wireless network node. The wireless network node receives an access request from the mobile computing device for the data packet transmission to the destinations and determines an identifier of the mobile computing device. The wireless network node then determines whether the identifier is in a wireless network node database. When the identifier is not in the wireless network node database, the wireless network node suspends to process data packets received from the mobile computing device and communicates with a server to determine whether status of the mobile computing device in a server database is the first state.Type: GrantFiled: May 11, 2017Date of Patent: July 27, 2021Assignee: Pismo Labs Technology LimitedInventors: Ho Ming Chan, Ka Kei Liu
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Patent number: 10914678Abstract: A method for quantitative detection of blood lipid in blood based on terahertz spectroscopy, including: matching the terahertz spectral absorption coefficient curves of blood samples obtained in step 3 with parameters of component concentration and component type of the blood lipid detected by hospital instruments, and establishing a terahertz blood lipid parameter database by combining the time-domain signal data of samples of the triglyceride and cholesterol; determining parameters of a support vector regression (SVR) model; performing a training with the training set as input to the SVR model to obtain a support vector and a corresponding weight; and testing the test set of an unknown blood sample using the trained support vector and the corresponding weight.Type: GrantFiled: March 13, 2019Date of Patent: February 9, 2021Assignee: University of Shanghai for Science and TechnologyInventors: Yan Peng, Yiming Zhu, Liping Wang, Qingrou Yang, Jiayu Zhao, Zhijia Liu, Yang Liu, Xinyu Tang, Keying Liu, Lin Guo, Songlin Zhuang
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Publication number: 20200292448Abstract: A method for quantitative detection of blood lipid in blood based on terahertz spectroscopy, including: matching the terahertz spectral absorption coefficient curves of blood samples obtained in step 3 with parameters of component concentration and component type of the blood lipid detected by hospital instruments, and establishing a terahertz blood lipid parameter database by combining the time-domain signal data of samples of the triglyceride and cholesterol; determining parameters of a support vector regression (SVR) model; performing a training with the training set as input to the SVR model to obtain a support vector and a corresponding weight; and testing the test set of an unknown blood sample using the trained support vector and the corresponding weight.Type: ApplicationFiled: March 13, 2019Publication date: September 17, 2020Inventors: Yan PENG, Yiming ZHU, Liping WANG, Qingrou YANG, Jiayu ZHAO, Zhijia LIU, Yang LIU, Xinyu TANG, Keying LIU, Lin GUO, Songlin ZHUANG
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Publication number: 20200217790Abstract: Disclosed is a method for qualitative and quantitative determination of key substances in mixture based on terahertz spectrum. Terahertz spectrum of a reference mixture is trained through an SVR algorithm, and predicting parameters of key substances in the mixture to be determined after a model is generated. According to the method, an initial pure spectrum corresponding to each composition in the mixture does not need to be separately determined, no limitation on the number of samples contained in the mixture, and no limitation on frequency range to be determined, and the proportion requirement of the mixture in the early test stage is not limited, and the SVR model does not need to be re-trained after a database is formed in the later stage, and the result can be obtained immediately after the spectrum of item to be determined is introduced into the algorithm model.Type: ApplicationFiled: January 9, 2019Publication date: July 9, 2020Inventors: Yan PENG, Yiming ZHU, Chenjun SHI, Yujian YANG, Jiayu ZHAO, Zhijia LIU, Xinyu TANG, Yang LIU, Lin GUO, Keying LIU, Songlin ZHUANG
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Publication number: 20200145822Abstract: Methods and apparatus for processing data packets originated from a mobile computing device to destinations at a wireless network node. The wireless network node receives an access request from the mobile computing device for the data packet transmission to the destinations and determines an identifier of the mobile computing device. The wireless network node then determines whether the identifier is in a wireless network node database. When the identifier is not in the wireless network node database, the wireless network node suspends to process data packets received from the mobile computing device and communicates with a server to determine whether status of the mobile computing device in a server database is the first state.Type: ApplicationFiled: May 11, 2017Publication date: May 7, 2020Applicant: Pismo Labs Technology LimitedInventors: Ho Ming Chan, Ka Kei Liu
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Patent number: 10298416Abstract: The present invention discloses a method and system for processing a first layer two packet converting a first layer two packet to a first unicast layer two packet at a wireless access point. The wireless access point receives first one or more layer three packets and extracts a first layer two packet from the first one or more layer three packets. If the first layer 2 packet is a multicast packet and it satisfies the predefined rule, the first layer two packet is converted to a layer two unicast packet with a first destination address and send to a Local Area Network (LAN) network interface. If the first layer two packet does not satisfy the predefined rule, it is broadcast to one or more LAN network interface. When the first layer two packet is not a multicast packet, it is sent to its corresponding destination address through one or more LAN network.Type: GrantFiled: November 21, 2016Date of Patent: May 21, 2019Assignee: PISMO LABS TECHNOLOGY LIMITEDInventors: Kam Chiu Ng, Yu Yeung, Ka Kei Liu
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Publication number: 20170070428Abstract: The present invention discloses a method and system for processing a first layer two packet converting a first layer two packet to a first unicast layer two packet at a wireless access point. The wireless access point receives first one or more layer three packets and extracts a first layer two packet from the first one or more layer three packets. If the first layer 2 packet is a multicast packet and it satisfies the predefined rule, the first layer two packet is converted to a layer two unicast packet with a first destination address and send to a Local Area Network (LAN) network interface. If the first layer two packet does not satisfy the predefined rule, it is broadcast to one or more LAN network interface. When the first layer two packet is not a multicast packet, it is sent to its corresponding destination address through one or more LAN network.Type: ApplicationFiled: November 21, 2016Publication date: March 9, 2017Applicant: Pismo Labs Technology LimitedInventors: Kam Chiu NG, Yu YEUNG, Ka Kei LIU
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Patent number: 9503276Abstract: A method of operating a communication system, comprising the steps of: receiving a first OSI layer two packet from a first network interface; determining transmission type of the first OSI layer two packet; determining whether to send a second OSI layer two packet according to the transmission type, origin and destination of the first OSI layer two packet; determining destination address and transmission type of the second OSI layer two packet when determined to send the second OSI layer two packet; and sending the second OSI layer two packet through a second network interface when determined to send the second OSI layer two packet; wherein when the first OSI layer two packet is encapsulated in at least one layer three packet, the second OSI layer two packet is not encapsulated in any OSI layer three packet; and wherein when the first OSI layer two packet is not encapsulated in any Open Systems Interconnection (OSI) layer three packet, the second OSI layer two packet is encapsulated in at least one OSI layerType: GrantFiled: December 12, 2012Date of Patent: November 22, 2016Assignee: PISMO LABS TECHNOLOGY LIMITEDInventors: Kam Chiu Ng, Yu Yeung, Ka Kei Liu
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Publication number: 20150222452Abstract: A method of operating a communication system, comprising the steps of: receiving a first OSI layer two packet from a first network interface; determining transmission type of the first OSI layer two packet; determining whether to send a second OSI layer two packet according to the transmission type, origin and destination of the first OSI layer two packet; determining destination address and transmission type of the second OSI layer two packet when determined to send the second OSI layer two packet; and sending the second OSI layer two packet through a second network interface when determined to send the second OSI layer two packet; wherein when the first OSI layer two packet is encapsulated in at least one layer three packet, the second OSI layer two packet is not encapsulated in any OSI layer three packet; and wherein when the first OSI layer two packet is not encapsulated in any Open Systems Interconnection (OSI) layer three packet, the second OSI layer two packet is encapsulated in at least one OSI layerType: ApplicationFiled: December 12, 2012Publication date: August 6, 2015Applicant: Pismo Labs Technology LimitedInventors: Kam Chiu Ng, Yu Yeung, Ka Kei Liu