Patents by Inventor Frederick Liu

Frederick 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).

  • Publication number: 20240091953
    Abstract: A method for controlling a robotic system includes determining a location and/or a pose of a power system component based on data received from one or more sensors, and determining a mapping of a location of a robotic system within a model of an external environment of the robotic system based on the data. The model of the external environment provides locations of objects external to the robotic system. A sequence of movements of components of the robotic system is determined to perform maintenance on the power system component based on the locations of the objects external to the robotic system and/or the location or pose of the power system component. One or more control signals are communicated to remotely control movement of the components of the robotic system based on the sequence or movements of the components to perform maintenance on the power system component.
    Type: Application
    Filed: November 30, 2023
    Publication date: March 21, 2024
    Inventors: Romano Patrick, Shiraj Sen, Arpit Jain, Huan Tan, Yonatan Gefen, Shuai Li, Shubao Liu, Pramod Sharma, Balajee Kannan, Viktor Holovashchenko, Douglas Forman, John Michael Lizzi, Charles Burton Theurer, Omar Al Assad, Ghulam Ali Baloch, Frederick Wilson Wheeler, Tai-Peng Tian
  • Patent number: 11809972
    Abstract: Methods, computer readable media, devices, and systems provide for distributed machine learning. In one aspect, a method of training a model is disclosed. The method includes receiving, by a client device, from one or more servers, an intermediate model, training, by the client device, the intermediate model based on private data, and transmitting, by the client device, to the one or more servers, the trained intermediate model.
    Type: Grant
    Filed: April 21, 2022
    Date of Patent: November 7, 2023
    Assignee: Snap Inc.
    Inventors: Vasyl Pihur, Subhash Sankuratripati, Dachuan Huang, Antonio Marcedone, Frederick Liu, Ruogu Zeng
  • Publication number: 20230112862
    Abstract: Provided are systems and methods that improve the computational efficiency of Transformers or other attention-based neural networks or machine learning models by re-using a number of attention scores between layers and/or heads of the model. To reduce the computational cost of self-attention-based models while achieving comparable or even superior results, example aspects of the present disclosure propose a novel architecture that reuses attention scores computed in one layer in one or multiple subsequent layers.
    Type: Application
    Filed: October 5, 2022
    Publication date: April 13, 2023
    Inventors: Venkata S. Bhojanapalli, Andreas Veit, Ayan Chakrabarti, Frederick Liu, Himanshu Jain, Michal Lukasik, Sanjiv Kumar, Yin-Wen Chang
  • Publication number: 20220327527
    Abstract: Embodiments are described that are directed to optimizing the provisioning of payment account credentials to mobile devices utilizing mobile wallets. In some embodiments, one of multiple provisioning schemes may be selectively chosen for payment account credential provisioning based upon a determined risk involved with a particular provisioning request. A low risk provisioning request leads to an immediate provisioning of a payment credential, whereas a provisioning request of high risk results in the provisioning request being denied. In some embodiments, medium risk provisioning requests will cause an additional user authentication to be performed before the payment account provisioning is finalized. The additional user authentication may occur using a separate communication channel than the channel in which the provisioning request was received.
    Type: Application
    Filed: June 16, 2022
    Publication date: October 13, 2022
    Inventors: Erick Wong, Kiushan Pirzadeh, Oleg Makhotin, Glenn Powell, Igor Karpenko, John Sheets, Frederick Liu
  • Publication number: 20220245524
    Abstract: Methods, computer readable media, devices, and systems provide for distributed machine learning. In one aspect, a method of training a model is disclosed. The method includes receiving, by a client device, from one or more servers, an intermediate model, training, by the client device, the intermediate model based on private data, and transmitting, by the client device, to the one or more servers, the trained intermediate model.
    Type: Application
    Filed: April 21, 2022
    Publication date: August 4, 2022
    Inventors: Vasyl Pihur, Subhash Sankuratripati, Dachuan Huang, Antonio Marcedone, Frederick Liu, Ruogu Zeng
  • Patent number: 11392939
    Abstract: Embodiments are described that are directed to optimizing the provisioning of payment account credentials to mobile devices utilizing mobile wallets. In some embodiments, one of multiple provisioning schemes may be selectively chosen for payment account credential provisioning based upon a determined risk involved with a particular provisioning request. A low risk provisioning request leads to an immediate provisioning of a payment credential, whereas a provisioning request of high risk results in the provisioning request being denied. In some embodiments, medium risk provisioning requests will cause an additional user authentication to be performed before the payment account provisioning is finalized. The additional user authentication may occur using a separate communication channel than the channel in which the provisioning request was received.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: July 19, 2022
    Assignee: VISA INTERNATIONAL SERVICE ASSOCIATION
    Inventors: Erick Wong, Kiushan Pirzadeh, Oleg Makhotin, Glenn Powell, Igor Karpenko, John Sheets, Frederick Liu
  • Patent number: 11341429
    Abstract: Methods, computer readable media, devices, and systems provide for distributed machine learning. In one aspect, a method of training a model is disclosed. The method includes receiving, by a client device, from one or more servers, an intermediate model, training, by the client device, the intermediate model based on private data, and transmitting, by the client device, to the one or more servers, the trained intermediate model.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: May 24, 2022
    Assignee: Snap Inc.
    Inventors: Vasyl Pihur, Subhash Sankuratripati, Dachuan Huang, Antonio Marcedone, Frederick Liu, Ruogu Zeng
  • Publication number: 20210337389
    Abstract: A method for authentication using location correlation is disclosed. The method includes determining geographic zones and zone identifiers associated with a location of a mobile communication device. Later, transaction data is received and a zone identifier is determined from that transaction data. If the zone identifier matches one of the previously determined zone identifiers, then a match indicator is sent to an authorizing entity computer system or the transaction may be allowed to proceed.
    Type: Application
    Filed: July 2, 2021
    Publication date: October 28, 2021
    Inventors: Eden Smith, Mary Reeder, Joseph Bureau, Frederick Liu
  • Publication number: 20210295305
    Abstract: Embodiments of the present invention are directed to methods, apparatuses, computer readable media and systems for securely processing remote transactions. One embodiment of the invention is directed to a method of processing a remote transaction initiated by a mobile device comprising a server computer receiving a payment request including encrypted payment information. The encrypted payment information being generated by a mobile payment application of the mobile device and being encrypted using a third party key. The method further comprises decrypting the encrypted payment information using the third party key, determining a transaction processor public key associated with the payment information, and re-encrypting the payment information using the transaction processor public key. The method further comprises sending a payment response including the re-encrypted payment information to a transaction processor.
    Type: Application
    Filed: June 1, 2021
    Publication date: September 23, 2021
    Inventors: John Sheets, Kim Wagner, Christian Aabye, Frederick Liu, Igor Karpenko, Glenn Powell, Kiushan Pirzadeh
  • Patent number: 11089482
    Abstract: A method for authentication using location correlation is disclosed. The method includes determining geographic zones and zone identifiers associated with a location of a mobile communication device. Later, transaction data is received and a zone identifier is determined from that transaction data. If the zone identifier matches one of the previously determined zone identifiers, then a match indicator is sent to an authorizing entity computer system or the transaction may be allowed to proceed.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: August 10, 2021
    Assignee: Visa International Service Association
    Inventors: Eden Smith, Mary Reeder, Joseph Bureau, Frederick Liu
  • Patent number: 11055694
    Abstract: Embodiments of the present invention are directed to methods, apparatuses, computer readable media and systems for securely processing remote transactions. One embodiment of the invention is directed to a method of processing a remote transaction initiated by a mobile device comprising a server computer receiving a payment request including encrypted payment information. The encrypted payment information being generated by a mobile payment application of the mobile device and being encrypted using a third party key. The method further comprises decrypting the encrypted payment information using the third party key, determining a transaction processor public key associated with the payment information, and re-encrypting the payment information using the transaction processor public key. The method further comprises sending a payment response including the re-encrypted payment information to a transaction processor.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: July 6, 2021
    Assignee: Visa International Service Association
    Inventors: John Sheets, Kim Wagner, Christian Aabye, Frederick Liu, Igor Karpenko, Glenn Powell, Kiushan Pirzadeh
  • Publication number: 20200186997
    Abstract: A method for authentication using location correlation is disclosed. The method includes determining geographic zones and zone identifiers associated with a location of a mobile communication device. Later, transaction data is received and a zone identifier is determined from that transaction data. If the zone identifier matches one of the previously determined zone identifiers, then a match indicator is sent to an authorizing entity computer system or the transaction may be allowed to proceed.
    Type: Application
    Filed: March 31, 2017
    Publication date: June 11, 2020
    Inventors: Eden Smith, Mary Reeder, Joseph Bureau, Frederick Liu
  • Patent number: 10607212
    Abstract: Embodiments of the present invention are directed to methods, apparatuses, computer readable media and systems for securely processing remote transactions. One embodiment of the invention is directed to a method of processing a remote transaction initiated by a mobile device comprising a server computer receiving a payment request including encrypted payment information. The encrypted payment information being generated by a mobile payment application of the mobile device and being encrypted using a third party key. The method further comprises decrypting the encrypted payment information using the third party key, determining a transaction processor public key associated with the payment information, and re-encrypting the payment information using the transaction processor public key. The method further comprises sending a payment response including the re-encrypted payment information to a transaction processor.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: March 31, 2020
    Assignee: Visa International Services Association
    Inventors: John Sheets, Kim Wagner, Christian Aabye, Frederick Liu, Igor Karpenko, Glenn Powell, Kiushan Pirzadeh
  • Publication number: 20200097948
    Abstract: Embodiments of the present invention are directed to methods, apparatuses, computer readable media and systems for securely processing remote transactions. One embodiment of the invention is directed to a method of processing a remote transaction initiated by a mobile device comprising a server computer receiving a payment request including encrypted payment information. The encrypted payment information being generated by a mobile payment application of the mobile device and being encrypted using a third party key. The method further comprises decrypting the encrypted payment information using the third party key, determining a transaction processor public key associated with the payment information, and re-encrypting the payment information using the transaction processor public key. The method further comprises sending a payment response including the re-encrypted payment information to a transaction processor.
    Type: Application
    Filed: November 27, 2019
    Publication date: March 26, 2020
    Inventors: John Sheets, Kim Wagner, Christian Aabye, Frederick Liu, Igor Karpenko, Glenn Powell, Kiushan Pirzadeh
  • Publication number: 20200097960
    Abstract: Embodiments are described that are directed to optimizing the provisioning of payment account credentials to mobile devices utilizing mobile wallets. In some embodiments, one of multiple provisioning schemes may be selectively chosen for payment account credential provisioning based upon a determined risk involved with a particular provisioning request. A low risk provisioning request leads to an immediate provisioning of a payment credential, whereas a provisioning request of high risk results in the provisioning request being denied. In some embodiments, medium risk provisioning requests will cause an additional user authentication to be performed before the payment account provisioning is finalized. The additional user authentication may occur using a separate communication channel than the channel in which the provisioning request was received.
    Type: Application
    Filed: November 12, 2019
    Publication date: March 26, 2020
    Inventors: Erick Wong, Kiushan Pirzadeh, Oleg Makhotin, Glenn Powell, Igor Karpenko, John Sheets, Frederick Liu
  • Patent number: 10510073
    Abstract: Embodiments are described that are directed to optimizing the provisioning of payment account credentials to mobile devices utilizing mobile wallets. In some embodiments, one of multiple provisioning schemes may be selectively chosen for payment account credential provisioning based upon a determined risk involved with a particular provisioning request. A low risk provisioning request leads to an immediate provisioning of a payment credential, whereas a provisioning request of high risk results in the provisioning request being denied. In some embodiments, medium risk provisioning requests will cause an additional user authentication to be performed before the payment account provisioning is finalized. The additional user authentication may occur using a separate communication channel than the channel in which the provisioning request was received.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: December 17, 2019
    Assignee: Visa International Service Association
    Inventors: Erick Wong, Kiushan Pirzadeh, Oleg Makhotin, Glenn Powell, Igor Karpenko, John Sheets, Frederick Liu
  • Patent number: 10140616
    Abstract: Rules, applied to deny authorization of likely fraudulent transactions, are derived from a modified Patient Rule Induction Method algorithm that uses a target variable and a data set of past transactions each associated with a plurality of input variables and a hyper-rectangle enclosing a multi-dimensional space defined by a representation of the input variable values as points within the multi-dimensional space. While a count of the points within the hyper-rectangle is greater than a minimum support parameter, a first plurality of points proximal to edges of the hyper-rectangle are removed, where each such removing maximizes a mean value of the target variable, and then, while the mean value remains maximized, a second plurality of points proximal to the edges is added, where each adding maximizes or maintains the mean value. The hyper-rectangle is bounded within a minimum bounding box that defines the rules.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: November 27, 2018
    Assignee: VISA INTERNATIONAL SERVICE ASSOCIATION
    Inventors: Frederick Liu, Nancy Hilgers, Mark Nelsen, Kevin Siegel, Christopher Brown, Thomas Dwyer
  • Publication number: 20180101852
    Abstract: Rules, applied to deny authorization of likely fraudulent transactions, are derived from a modified Patient Rule Induction Method algorithm that uses a target variable and a data set of past transactions each associated with a plurality of input variables and a hyper-rectangle enclosing a multi-dimensional space defined by a representation of the input variable values as points within the multi-dimensional space. While a count of the points within the hyper-rectangle is greater than a minimum support parameter, a first plurality of points proximal to edges of the hyper-rectangle are removed, where each such removing maximizes a mean value of the target variable, and then, while the mean value remains maximized, a second plurality of points proximal to the edges is added, where each adding maximizes or maintains the mean value. The hyper-rectangle is bounded within a minimum bounding box that defines the rules.
    Type: Application
    Filed: December 11, 2017
    Publication date: April 12, 2018
    Inventors: Frederick Liu, Nancy Hilgers, Mark Nelsen, Kevin Siegel, Christopher Brown, Thomas Dwyer
  • Patent number: 9842336
    Abstract: Rules, applied to deny authorization of likely fraudulent transactions, are derived from a modified Patient Rule Induction Method algorithm that uses a target variable and a data set of past transactions each associated with a plurality of input variables and a hyper-rectangle enclosing a multi-dimensional space defined by a representation of the input variable values as points within the multi-dimensional space. While a count of the points within the hyper-rectangle is greater than a minimum support parameter, a first plurality of points proximal to edges of the hyper-rectangle are removed, where each such removing maximizes a mean value of the target variable, and then, while the mean value remains maximized, a second plurality of points proximal to the edges is added, where each adding maximizes or maintains the mean value. The hyper-rectangle is bounded within a minimum bounding box that defines the rules.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: December 12, 2017
    Assignee: VISA International Service Association
    Inventors: Frederick Liu, Nancy Hilgers, Mark Nelsen, Kevin Siegel, Christopher Brown, Thomas Dwyer
  • Publication number: 20150178735
    Abstract: Rules, applied to deny authorization of likely fraudulent transactions, are derived from a modified Patient Rule Induction Method algorithm that uses a target variable and a data set of past transactions each associated with a plurality of input variables and a hyper-rectangle enclosing a multi-dimensional space defined by a representation of the input variable values as points within the multi-dimensional space. While a count of the points within the hyper-rectangle is greater than a minimum support parameter, a first plurality of points proximal to edges of the hyper-rectangle are removed, where each such removing maximizes a mean value of the target variable, and then, while the mean value remains maximized, a second plurality of points proximal to the edges is added, where each adding maximizes or maintains the mean value. The hyper-rectangle is bounded within a minimum bounding box that defines the rules.
    Type: Application
    Filed: December 29, 2014
    Publication date: June 25, 2015
    Inventors: Frederick Liu, Nancy Hilgers, Mark Nelsen, Kevin Siegel, Christopher Brown, Thomas Dwyer