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    Apparent cloud access for hosted content items
    31.
    发明授权
    Apparent cloud access for hosted content items 有权

    公开(公告)号：US10819559B2

    公开(公告)日：2020-10-27

    申请号：US15870365

    申请日：2018-01-12

    Applicant: Dropbox, Inc.

    Inventor： Nipunn Koorapati ,  Christopher Rude ,  Marcio von Muhlen ,  Nils Bunger

    IPC: G06F15/16 ,  H04L12/24 ,  G06F16/182 ,  H04L29/08

    Abstract: Techniques for apparent cloud access of a hosted content item. In one embodiment, for example, a method performed at a personal computing device executing a user agent comprises: receiving a block agent request for a content item from the user agent; determining content item block identifiers of content item blocks that make up the content item; determining which, if any, of the content item blocks that make up the content item are not stored in a local storage of the personal computing device; downloading, from a block server of an online content management system, any of the content item blocks that are not stored in a local storage of the personal computing device; and sending to the user agent, in a response to the block agent request, data of each of the content item blocks that make up the content item.

    CONTENT MANAGEMENT CLIENT SYNCHRONIZATION SERVICE
    33.
    发明申请
    CONTENT MANAGEMENT CLIENT SYNCHRONIZATION SERVICE 审中-公开

    公开(公告)号：US20190205458A1

    公开(公告)日：2019-07-04

    申请号：US15868505

    申请日：2018-01-11

    Applicant: Dropbox, Inc.

    Inventor： Isaac Goldberg ,  Sujay Jayakar ,  John Lai ,  Robert Ying ,  Nipunn Koorapati ,  Gautam Gupta ,  Geoffry Song ,  Elmer Charles Jubb, IV

    IPC: G06F17/30 ,  H04L29/08

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

    ATOMIC MOVES WITH LAMPORT CLOCKS IN A CONTENT MANAGEMENT SYSTEM
    34.
    发明申请
    ATOMIC MOVES WITH LAMPORT CLOCKS IN A CONTENT MANAGEMENT SYSTEM 审中-公开

    公开(公告)号：US20190205457A1

    公开(公告)日：2019-07-04

    申请号：US15873693

    申请日：2018-01-17

    Applicant: Dropbox, Inc.

    Inventor： Nipunn Koorapati ,  David Wetterau ,  Braden Walker ,  James Cowling ,  Sujay Jayakar

    IPC: G06F17/30 ,  H04L29/08 ,  G06F1/04

    Abstract: A system can serialize moves and mounts across namespaces based on lamport clocks. In some examples, the system obtains a request to move a content item from a source namespace to a destination namespace. The system processes an incoming move at the destination and an outgoing move at the source. The system processes for the content item a delete at the source and an add at the destination. The system assigns a first clock to the incoming move and a second clock to the outgoing move, the first clock being lower than the second clock. The system assigns a third clock to the delete and a fourth clock to the add, the third clock being higher than the second clock and lower than the fourth clock. The system serializes the incoming and outgoing moves, the delete and the add based on the first, second, third and fourth clocks.

    FILE JOURNAL INTERFACE FOR SYNCHRONIZING CONTENT
    36.
    发明申请
    FILE JOURNAL INTERFACE FOR SYNCHRONIZING CONTENT 审中-公开

    公开(公告)号：US20190205419A1

    公开(公告)日：2019-07-04

    申请号：US15858410

    申请日：2017-12-29

    Applicant: Dropbox, Inc.

    Inventor： Elmer Charles Jubb, IV ,  Nipunn Koorapati ,  Robert Ying

    IPC: G06F17/30

    Abstract: In some embodiments, a system for synchronizing content with client devices receives a request from a client device to synchronize operations pertaining to content items associated with a user account registered at the system. The request can include the operations and a cursor identifying a current position of the client in a journal of revisions on the system. Based on the operations, the system generates linearized operations associated with the content items. The linearized operations can include a respective operation derived for each of the content items from one or more of the operations. The system converts each respective operation in the linearized operations to a respective revision for the journal of revisions and, based on the cursor, determines whether the respective revision conflicts with revisions in the journal. When the respective revision does not conflict with revisions in the journal, the system adds the respective revision to the journal.

    Content item synchronization by block
    37.
    发明授权
    Content item synchronization by block 有权

    公开(公告)号：US09819740B2

    公开(公告)日：2017-11-14

    申请号：US15359468

    申请日：2016-11-22

    Applicant: Dropbox, Inc.

    Inventor： Bogdan-Cristian Tataroiu ,  Nipunn Koorapati

    IPC: G06F15/16 ,  H04L29/08 ,  H04N21/83 ,  H04N21/278

    CPC classification number: H04L67/1097 ,  H04L67/02 ,  H04L67/06 ,  H04L67/1095 ,  H04N21/278 ,  H04N21/83

    Abstract: A content management system synchronizes content items across client computing systems. The content items are transmitted to the content management system and managed as blocks of data with a fixed size. When a new content item is added to synchronized data at a client, the client transmits the blocks and a blocklist to the content management system. The content management system uses the blocklist to determine blocks expected to be received at the content management system and the client begins to transmit blocks of the content item to the content management system. When blocks received at the content management system match expected blocks, the content management system notifies receiving clients to begin receiving blocks for the content item, prior to receipt of all blocks on the blocklist at the content management system. This enables content items to begin synchronization across clients prior to actual entry of the content item into the content management system.

    PEER-TO-PEER SYNCHRONIZATION PROTOCOL FOR MULTI-PREMISES HOSTING OF DIGITAL CONTENT ITEMS
    38.
    发明申请
    PEER-TO-PEER SYNCHRONIZATION PROTOCOL FOR MULTI-PREMISES HOSTING OF DIGITAL CONTENT ITEMS 审中-公开

    公开(公告)号：US20170126802A1

    公开(公告)日：2017-05-04

    申请号：US15355286

    申请日：2016-11-18

    Applicant: Dropbox, Inc.

    Inventor： Nipunn Koorapati ,  Christopher Rude ,  Marcio von Muhlen ,  Nils Bunger

    IPC: H04L29/08

    Abstract: A peer-to-peer synchronization protocol for multi-premises hosting of digital content items. In one embodiment, for example, a method comprises the operations of: receiving, from a peer computing device, a peer download advertisement comprising an identifier of a content item namespace in association with a peer client journal cursor value; receiving, from a server, one or more server journal entries, each identifying one or more content item blocks of a content item represented by the server journal entry and each having a server journal cursor value; and for at least one server journal entry, downloading, from the peer computing device, at least one content item block of the content item represented by the server journal entry that is not already stored at the computing device.

    Peer-to-peer synchronization protocol for multi-premises hosting of digital content items
    39.
    发明授权
    Peer-to-peer synchronization protocol for multi-premises hosting of digital content items 有权
    用于多内容托管数字内容项目的对等同步协议

    公开(公告)号：US09571573B1

    公开(公告)日：2017-02-14

    申请号：US14979256

    申请日：2015-12-22

    Applicant: Dropbox, Inc.

    Inventor： Nipunn Koorapati ,  Christopher Rude ,  Marcio von Muhlen ,  Nils Bunger

    IPC: G06F15/173 ,  H04L29/08 ,  H04L12/801

    CPC classification number: G06F17/30575 ,  G06F17/30067 ,  G06F17/30132 ,  G06F17/30174 ,  G06F17/30215 ,  H04L47/196 ,  H04L61/1582 ,  H04L67/06 ,  H04L67/10 ,  H04L67/1023 ,  H04L67/104 ,  H04L67/108 ,  H04L67/1095 ,  H04L67/1097 ,  H04L67/2842

    Abstract: A peer-to-peer synchronization protocol for multi-premises hosting of digital content items. In one embodiment, for example, a method comprises the operations of: receiving, from a peer computing device, a peer download advertisement comprising an identifier of a content item namespace in association with a peer client journal cursor value; receiving, from a server, one or more server journal entries, each identifying one or more content item blocks of a content item represented by the server journal entry and each having a server journal cursor value; and for at least one server journal entry, downloading, from the peer computing device, at least one content item block of the content item represented by the server journal entry that is not already stored at the computing device.

    Abstract translation: 用于数字内容项目的多地方托管的对等同步协议。 在一个实施例中，例如，一种方法包括以下操作：从对等计算设备接收包括与对等客户端日志游标值相关联的内容项目命名空间的标识符的对等体下载广告; 从服务器接收一个或多个服务器日志条目，每个服务器日志条目标识由服务器日记帐分录表示的每个具有服务器日志光标值的内容项目的一个或多个内容项目块; 并且对于至少一个服务器日记帐分录，从所述对等计算设备下载由尚未存储在所述计算设备处的所述服务器日记帐分录表示的所述内容项目的至少一个内容项目块。

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