Patents by Inventor Nathaniel David Roberts

Nathaniel David Roberts 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).

  • Patent number: 8055615
    Abstract: Methods and apparatus are described for a horizontally scalable high performance object storage architecture. Metadata are completely decoupled from object storage. Instead of file names, users are given a locator when the object is uploaded and committed. Users can store the locator along with their own metadata or embed it directly in the static content. Clients can choose which storage nodes to store data on based on dynamic measures of node performance. Since there is no coupling among storage servers, performance can scale horizontally by adding more nodes. The decoupling also allows the front end services and storage to scale independently. High service availability is achieved by object-level synchronous replication and having no single point of failure. Failed nodes are rebuilt using copies of data in other nodes without taking the cluster offline. In addition to the replication, the ability to add or remove nodes on-line reduces maintenance-related service downtime.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: November 8, 2011
    Assignee: Yahoo! Inc.
    Inventors: Nathaniel David Roberts, Jeanie Zhiling Zheng, Chung Hae Sohn, Kihwal Lee, John Vijoe George
  • Publication number: 20110055494
    Abstract: Methods and apparatus are described for a horizontally scalable high performance object storage architecture. Metadata are completely decoupled from object storage. Instead of file names, users are given a locator when the object is uploaded and committed. Users can store the locator along with their own metadata or embed it directly in the static content. Clients can choose which storage nodes to store data on based on dynamic measures of node performance. Since there is no coupling among storage servers, performance can scale horizontally by adding more nodes. The decoupling also allows the front end services and storage to scale independently. High service availability is achieved by object-level synchronous replication and having no single point of failure. Failed nodes are rebuilt using copies of data in other nodes without taking the cluster offline. In addition to the replication, the ability to add or remove nodes on-line reduces maintenance-related service downtime.
    Type: Application
    Filed: August 25, 2009
    Publication date: March 3, 2011
    Applicant: YAHOO! INC.
    Inventors: Nathaniel David Roberts, Jeanie Zhiling Zheng, Chung Hae Sohn, Kihwal Lee, John Vijoe George, Charles Joseph Neerdaels
  • Publication number: 20110055156
    Abstract: Methods and apparatus are described for a horizontally scalable high performance object storage architecture. Metadata are completely decoupled from object storage. Instead of file names, users are given a locator when the object is uploaded and committed. Users can store the locator along with their own metadata or embed it directly in the static content. Clients can choose which storage nodes to store data on based on dynamic measures of node performance. Since there is no coupling among storage servers, performance can scale horizontally by adding more nodes. The decoupling also allows the front end services and storage to scale independently. High service availability is achieved by object-level synchronous replication and having no single point of failure. Failed nodes are rebuilt using copies of data in other nodes without taking the cluster offline. In addition to the replication, the ability to add or remove nodes on-line reduces maintenance-related service downtime.
    Type: Application
    Filed: August 25, 2009
    Publication date: March 3, 2011
    Applicant: YAHOO! INC.
    Inventors: Nathaniel David Roberts, Jeanie Zhiling Zheng, Chung Hae Sohn, Kihwal Lee, John Vijoe George
  • Patent number: 6141564
    Abstract: Method and apparatus for sharing a SIM card between two masters. The invention may be embodied in so-called multi-mode radiotelephones that use SIM cards to store and access information. The multi-mode radiotelephone includes at least two master components and a single SIM card. The method and apparatus synchronizes and coordinates communications from either master component directly to the SIM card, thereby allowing a single SIM card to directly service two master components.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: October 31, 2000
    Assignee: Motorola, Inc.
    Inventors: John David Bruner, Eric Edward Payne, Richard Allen Pace, Nathaniel David Roberts