Patents by Inventor Eric Leu

Eric Leu 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: 20260039712
    Abstract: There are provided systems and methods for scalable service discover and load balancing using direct client connections to servers. A service provider, such as an electronic transaction processor for digital transactions, may provide different computing services to users through client devices, which utilize server instances from server pools and the like to provide the computing services to users. This may include providing servers to handle client requests and process data with users. When client devices connect to the service provider's system, service discovery may be performed to find an available server instance to handle client requests. To provide scalable service discovery, load balancers may, instead of managing client requests through the load balancers, ping server instances from a server pool to identify a network address of an available server. This may be returned to the client device and a direction connection may be made between the device and server.
    Type: Application
    Filed: July 7, 2025
    Publication date: February 5, 2026
    Inventors: Yaping Shi, Eric Leu, Xuetao Li
  • Publication number: 20250284709
    Abstract: Disclosed methods and systems include maintaining, by a computer system, a database stored across a first number of nodes. This maintaining may include dividing records into a particular number of shards that are distributed among the first number of nodes. In response to a change to a second number of nodes, the computer system may determine a number of shards per node based on the second number of nodes. The computer system may select a subset of the particular number of shards to distribute across the second number of nodes, and move the subset of shards to one or more of the second number of nodes.
    Type: Application
    Filed: March 5, 2024
    Publication date: September 11, 2025
    Inventor: Eric Leu
  • Patent number: 12368775
    Abstract: There are provided systems and methods for scalable service discover and load balancing using direct client connections to servers. A service provider, such as an electronic transaction processor for digital transactions, may provide different computing services to users through client devices, which utilize server instances from server pools and the like to provide the computing services to users. This may include providing servers to handle client requests and process data with users. When client devices connect to the service provider's system, service discovery may be performed to find an available server instance to handle client requests. To provide scalable service discovery, load balancers may, instead of managing client requests through the load balancers, ping server instances from a server pool to identify a network address of an available server. This may be returned to the client device and a direction connection may be made between the device and server.
    Type: Grant
    Filed: June 2, 2023
    Date of Patent: July 22, 2025
    Assignee: PAYPAL, INC.
    Inventors: Yaping Shi, Eric Leu, Xuetao Li
  • Publication number: 20240406256
    Abstract: There are provided systems and methods for scalable service discover and load balancing using direct client connections to servers. A service provider, such as an electronic transaction processor for digital transactions, may provide different computing services to users through client devices, which utilize server instances from server pools and the like to provide the computing services to users. This may include providing servers to handle client requests and process data with users. When client devices connect to the service provider's system, service discovery may be performed to find an available server instance to handle client requests. To provide scalable service discovery, load balancers may, instead of managing client requests through the load balancers, ping server instances from a server pool to identify a network address of an available server. This may be returned to the client device and a direction connection may be made between the device and server.
    Type: Application
    Filed: June 2, 2023
    Publication date: December 5, 2024
    Inventors: Yaping Shi, Eric Leu, Xuetao Li
  • Patent number: 11868198
    Abstract: Techniques are disclosed relating to methods that include initializing, by a computer in a computer system, an event counter that includes a plurality of sub-counter groups, each plurality of sub-counter groups including at least two sub-counters located on different nodes of a plurality of nodes in the computer system. In response to an occurrence of an event associated with the event counter, the method may include the computer selecting a particular sub-counter group of the plurality of sub-counter groups to update, and sending, to sub-counters corresponding to the particular sub-counter group, a request to update a sub-counter value for the particular sub-counter group. In response to a request for a current count value of the event counter, the method may include outputting, by the computer, a sum of the sub-counter values for the plurality of sub-counter groups as the current count value.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: January 9, 2024
    Assignee: PayPal, Inc.
    Inventor: Eric Leu
  • Publication number: 20220413953
    Abstract: Techniques are disclosed relating to methods that include initializing, by a computer in a computer system, an event counter that includes a plurality of sub-counter groups, each plurality of sub-counter groups including at least two sub-counters located on different nodes of a plurality of nodes in the computer system. In response to an occurrence of an event associated with the event counter, the method may include the computer selecting a particular sub-counter group of the plurality of sub-counter groups to update, and sending, to sub-counters corresponding to the particular sub-counter group, a request to update a sub-counter value for the particular sub-counter group. In response to a request for a current count value of the event counter, the method may include outputting, by the computer, a sum of the sub-counter values for the plurality of sub-counter groups as the current count value.
    Type: Application
    Filed: June 23, 2021
    Publication date: December 29, 2022
    Inventor: Eric Leu
  • Patent number: 11429452
    Abstract: This disclosure includes an improvement to hashing methods, which can help achieve faster load balancing of computing resources (e.g., processors, storage systems, web servers or other computer systems, etc.) This improvement may be particularly beneficial when a quantity of the available resources changes. Such hashing methods may include assigning a data object associated with a key to a particular computing resource of the available computing resources by using two auxiliary functions that work together to uniformly distribute data objects across available computing resources and reduce an amount of time to assign the data object to the particular computing resource.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: August 30, 2022
    Assignee: PayPal, Inc.
    Inventor: Eric Leu
  • Publication number: 20210326183
    Abstract: This disclosure includes an improvement to hashing methods, which can help achieve faster load balancing of computing resources (e.g., processors, storage systems, web servers or other computer systems, etc.) This improvement may be particularly beneficial when a quantity of the available resources changes. Such hashing methods may include assigning a data object associated with a key to a particular computing resource of the available computing resources by using two auxiliary functions that work together to uniformly distribute data objects across available computing resources and reduce an amount of time to assign the data object to the particular computing resource.
    Type: Application
    Filed: April 16, 2020
    Publication date: October 21, 2021
    Inventor: Eric Leu
  • Patent number: 7483891
    Abstract: A system for determining associations between base content and relevant content and for publishing the base content and relevant content on a client browser. The system includes a parsing module configured to parse the base content to form parsed base content; a unit-dictionary module including a plurality of query units; a unit-extraction module configured to extract query units included in the unit dictionary from the parsed base content, wherein the query units extracted from the base content are referred to as the extracted-query units; a unit-ranking module configured to rank the extracted-query units based on at least one of relevance scores and revenue-generation amounts for the query units; and a unit-matching module configured to generate at least one association between the base content and the relevant content based on whether the extracted-query units and at least one of query units and keywords associated with the relevant content are the same.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: January 27, 2009
    Assignee: Yahoo, Inc.
    Inventors: Hongche Liu, Anand Madhavan, Majid Mohazzab, Hongfeng Yin, Eric Leu
  • Publication number: 20050154746
    Abstract: A system for determining associations between base content and relevant content and for publishing the base content and relevant content on a client browser. The system includes a parsing module configured to parse the base content to form parsed base content; a unit-dictionary module including a plurality of query units; a unit-extraction module configured to extract query units included in the unit dictionary from the parsed base content, wherein the query units extracted from the base content are referred to as the extracted-query units; a unit-ranking module configured to rank the extracted-query units based on at least one of relevance scores and revenue-generation amounts for the query units; and a unit-matching module configured to generate at least one association between the base content and the relevant content based on whether the extracted-query units and at least one of query units and keywords associated with the relevant content are the same.
    Type: Application
    Filed: April 21, 2004
    Publication date: July 14, 2005
    Applicant: Yahoo!, Inc.
    Inventors: Hongche Liu, Anand Madhavan, Majid Mohazzab, Hongfeng Yin, Eric Leu