Dropbox, Inc.

Ceraxis Health, Inc.

Mallinckrodt, Inc.

Everex Systems, Inc.

John Lai

Isaac Goldberg

Sujay Jayakar

Elmer Charles Jubb, Iv

Nipunn Koorapati

Robert Ying

Geoffry Song

Gautam Gupta

David Lubensky

Brian Hoffer

Scott Kokones

Christopher Pekrul

Adam Little

Eugina Chun

Omar Ansari

Joshua Robin Kaplan

Clifford T Jue

Gary L Hansen

Anthony Peter Patron

Steven S Bordewick

Christine Gale Kronich

Bradley J Bonnette

Jim Tappel

Michael Sullivan

Jeff C Weintraub

Dan P Wilkins

Bryon Ross

Mark Roemer

John Raff

Elmer Charles Jubb

An example computer implemented method for updating a first version of a content item on a client device. The example method includes recording an indicator that the first version is going to be updated to a second version of the content item. The computer can then begin updating the first version of the content item to the second version of the content item. Next, the computer can determine that the updating of the content item was interrupted. The computer can then determine if the second version of the content item is the same version as a current version of the content item. The computer can then change a description in a cache and the indicator accordingly.

Interrupted synchronization detection and recovery

The disclosed technology relates to a system configured to detect a delete event for a content item at a first location on a local file system of a client device, wherein the first location on the file system is managed by a content management service. The system determines a second location for the content item and whether the delete event is associated with an add event for the content item based on the second location of the content item. If the delete event is associated with the add event, the system processes the delete event with the add event in a unitary update to a local tree, wherein the local tree represents a file system state.

Updating a local tree for a client synchronization service

The present disclosure provides methods and devices for assessing movement. In some exemplary embodiments, a system for assessing movement is provided. In some embodiments, the system includes a handheld device. In some embodiments, the handheld device includes a plurality of sensors configured to record motion and position data, a body having a plurality of sides, a battery, and a proximal end configured to interact with a touchscreen of a computing device.

Handheld stylus and base and methods of use

A client can allocate and reassociate unique identifiers to local content items associated with an account at a content management system, and use the unique identifiers to commit operations for the content items on the content management system. For example, a client can create a content item and determine the content item does not have an identifier from the content management system. The client obtains an identifier for the content item and asks the content management system to verify a uniqueness of the identifier. When the identifier is unique, the client adds a node corresponding to the content item to a local tree representing a state at the client of content items associated with the account, and uploads the content item with the identifier to the content management system. When the identifier is not unique, the client obtains a new identifier for the content item.

Allocation and reassignment of unique identifiers for synchronization of content items

Stylus

The disclosed technology relates to a system configured to identify a first operation in a first set of operations configured to converge a server state and a file system state, wherein the first operation is not in a second set of operations generated in response to an change to at least one of the server state and the file system state. The system is further configured to cancel the first operation, identify a second operation in both the first set of operations and the second set of operations, and initiate execution of the second operation concurrently with the canceling of the first operation.

Efficient management of client synchronization updates

A client can resynchronize tree data structures representing a server, local, and sync state of content items in an account. In some aspects, the client identifies a local set of content items on the account and generates a local tree representing a filesystem state and including a local node for each item in the local set. The client determines a server state for a remote set of content items on the account. Based on the server state, the client generates a remote tree representing the remote set and including a respective node for each item in the remote set. Based on the local and remote trees, the client generates a sync tree including matching nodes between the local and remote trees, the sync tree representing a synchronized state between the filesystem state and the server state. The client then stores the local, remote, and sync trees.

Resynchronizing metadata in a content management system

Base

Resynchronization of folders shared among multiple client devices over a network is provided. Metadata and hash values stored on the client device are moved from a metadata database to a resynchronization database, and the data in the metadata database is deleted. Metadata is created for locally stored synchronized files. For each file, the created metadata is compared to the metadata stored in the resynchronization database. If the metadata matches, hash values are retrieved from the resynchronization database and stored with the created metadata in the metadata database. If the metadata does not match, hashes for the file are created and stored with the created metadata in the metadata database. A synchronization operation may be performed which consists of comparing the files stored on the client to the synchronized versions on a host server and updating or adding files that are not present or not up to date.

Network folder resynchronization

The disclosed technology relates to a system configured to compute a difference between a remote tree data structure representing a server state for content items associated with an account on a content management system and a sync tree data structure representing a known synchronization state between the content management system and the computing system. The system is configured to generate, based on the difference, a set of operations that when performed on the computing system update the content items stored on the client device to converge a file system state on the computing system and the server state.

Content management client synchronization service

The disclosed technology relates to a system configured to identify a set of modifications based on a set of tree data structures including a sync tree, a remote tree, and a local tree. The sync tree represents a known synced state between a server state and a file system state, the remote tree represents the server state, and the local tree represents the file system state. The system is further configured to select a set of unblocked modifications from the set of modifications based on whether each modification has a dependency and execute, based on the set of unblocked modifications, a set of tasks configured to converge the server state and the file system state.

Incremental client synchronization

Growing community of inventors

San Francisco, CA, United States of America

John Lai