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1. 发明授权

US11429634B2 Storage interface for synchronizing content 有权
公开(公告)号：US11429634B2
公开(公告)日：2022-08-30
申请号：US15858430
申请日：2017-12-29
申请人： Dropbox, Inc.
发明人： Nipunn Koorapati , Daniel Horn , Elmer Charles Jubb, IV
IPC分类号： G06F16/27 , G06F16/11 , G06F16/18 , G06F16/178 , G06F16/176 , G06F3/06 , G06F21/60 , G06F21/62 , H04L9/40 , H04L67/06 , H04L67/1097 , G06F16/958 , G06F16/2455 , G06F16/951 , G06F16/172 , G06F1/04 , G06F9/54 , G06F11/14 , G06F12/14 , G06F21/10 , H04L9/32 , H04L67/1095 , G06F16/23 , G06F16/22 , G06F16/182 , G06F16/185 , G06F16/16 , G06F16/13 , G06F16/174 , G06F16/14 , G06F16/907 , G06F16/17 , G06F16/901 , G06F16/955 , H04L67/306 , H04L67/01
摘要： In some embodiments, an interface of a content management system manages synchronized content on storage systems. For example, the interface stores, on a metadata storage structure, records of metadata associated with blocks of data stored on a storage, the records including block identifiers that uniquely identify the blocks and timestamps associated with the blocks. The interface identifies a batch of storage operations associated with the blocks, including one or more delete operations. For each delete operation, the interface queries the metadata storage structure for a timestamp corresponding to a block of data associated with the delete operation, determines whether the delete operation creates a race condition between the delete operation and an add operation associated with the block of data, and rejects the delete operation when the delete operation creates the race condition or the timestamp corresponding to the block of data is newer than a predetermined period of time.

2. 发明授权

US11423048B2 Content management client synchronization service 有权
公开(公告)号：US11423048B2
公开(公告)日：2022-08-23
申请号：US17077719
申请日：2020-10-22
申请人： Dropbox, Inc.
发明人： Isaac Goldberg , Sujay Jayakar , John Lai , Robert Ying , Nipunn Koorapati , Gautam Gupta , Geoffry Song , Elmer Charles Jubb, IV
IPC分类号： G06F16/00 , G06F16/27 , G06F16/11 , G06F16/18 , G06F16/178 , G06F16/176 , G06F3/06 , G06F21/60 , G06F21/62 , H04L9/40 , H04L67/06 , H04L67/1097 , G06F16/958 , G06F16/2455 , G06F16/951 , G06F16/172 , G06F1/04 , G06F9/54 , G06F11/14 , G06F12/14 , G06F21/10 , H04L9/32 , H04L67/1095 , G06F16/23 , G06F16/22 , G06F16/182 , G06F16/185 , G06F16/16 , G06F16/13 , G06F16/174 , G06F16/14 , G06F16/907 , G06F16/17 , G06F16/901 , G06F16/955 , H04L67/306 , H04L67/01
摘要： 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.

3. 发明授权

US11144573B2 Synchronization protocol for multi-premises hosting of digital content items 有权
公开(公告)号：US11144573B2
公开(公告)日：2021-10-12
申请号：US16888362
申请日：2020-05-29
申请人： Dropbox, Inc.
发明人： Nipunn Koorapati , Christopher Rude , Marcio von Muhlen , Nils Bunger
IPC分类号： G06F16/27 , H04L29/08 , G06F16/10 , G06F16/172 , G06F16/178 , G06F16/182 , H04L12/801 , H04L29/12
摘要： A synchronization protocol for multi-premises hosting of digital content items. In an embodiment, a method includes receiving a first commit request including a first set of one or more identifiers of one or more first content item blocks. The one or more first content item blocks make up a content item stored at a computing device. Further, the method includes, based at least in part on the first commit request, determining a second set of one or more identifiers that includes one or more identifiers of the first set of one or more identifiers not yet stored at a content item block server. The method also includes sending, to the computing device, the second set of one or more identifiers, and receiving a second commit request including the first set of one or more identifiers of the one or more first content item blocks, and an identifier of the content item block server. In this embodiment, the method then includes determining that no content item block from the one or more first content item blocks is missing at the content item block server, and committing the content item to the content item block server.

4. 发明申请

US20210232597A1 UPDATING A REMOTE TREE FOR A CLIENT SYNCHRONIZATION SERVICE 有权
公开(公告)号：US20210232597A1
公开(公告)日：2021-07-29
申请号：US17230249
申请日：2021-04-14
申请人： Dropbox, Inc.
发明人： Robert Ying , Nipunn Koorapati , Gautam Gupta
IPC分类号： G06F16/27 , G06F16/11 , G06F16/18 , G06F16/178 , G06F16/176 , G06F3/06 , G06F21/60 , G06F21/62 , H04L29/06 , H04L29/08 , G06F16/958 , G06F16/2455 , G06F16/951 , G06F16/172 , G06F1/04 , G06F9/54 , G06F11/14 , G06F12/14 , G06F21/10 , H04L9/32 , G06F16/23 , G06F16/22 , G06F16/182 , G06F16/185 , G06F16/16 , G06F16/13 , G06F16/174 , G06F16/14 , G06F16/907 , G06F16/17 , G06F16/901 , G06F16/955
摘要： The disclosed technology relates to a system configured to receive operations data from a content management system, wherein the operations data comprises a log of operations, execute the log of operations, and update, based on execution of the log of operations, a remote tree representing a server state for content items stored on the content management system.

5. 发明申请

US20210182311A1 STORAGE INTERFACE FOR SYNCHRONIZING CONTENT 有权
公开(公告)号：US20210182311A1
公开(公告)日：2021-06-17
申请号：US17187942
申请日：2021-03-01
申请人： Dropbox, Inc.
发明人： Nipunn Koorapati , Daniel Horn , Elmer Charles Jubb, IV
IPC分类号： G06F16/27 , G06F16/11 , G06F16/18 , G06F16/178 , G06F16/176 , G06F3/06 , G06F21/60 , G06F21/62 , H04L29/06 , H04L29/08 , G06F16/958 , G06F16/2455 , G06F16/951 , G06F16/172 , G06F1/04 , G06F9/54 , G06F11/14 , G06F12/14 , G06F21/10 , H04L9/32 , G06F16/23 , G06F16/22 , G06F16/182 , G06F16/185 , G06F16/16 , G06F16/13 , G06F16/174 , G06F16/14 , G06F16/907 , G06F16/17 , G06F16/901 , G06F16/955
摘要： An interface of a content management system manages storage and access of content on the system. For example, after receiving, from a client, a request to download a content item, the interface determines whether the request includes a valid token. If so, the interface sends a content item request to a storage service, retrieves the content item, and sends the content item to the client. Otherwise, the interface sends an authorization request to an authorization service, an authentication request to an authentication service, and a content item request to the storage service. Based on the requests, the interface determines whether the content item is available in storage and whether the client is authorized to access the content item. When the content item is available in storage and the client is authorized to access the content item, the interface retrieves the content item and sends the content item to the client.

6. 发明申请

US20190205427A1 CONTENT MANAGEMENT CLIENT SYNCHRONIZATION SERVICE 审中-公开
公开(公告)号：US20190205427A1
公开(公告)日：2019-07-04
申请号：US15868511
申请日：2018-01-11
申请人： Dropbox, Inc.
发明人： Isaac Goldberg , Sujay Jayakar , John Lai , Robert Ying , Nipunn Koorapati , Gautam Gupta , Geoffry Song , Elmer Charles Jubb, IV
IPC分类号： G06F17/30 , H04L29/08
CPC分类号： G06F16/137 , G06F1/04 , G06F3/0629 , G06F3/067 , G06F9/547 , G06F16/11 , G06F16/122 , G06F16/125 , G06F16/128 , G06F16/152 , G06F16/156 , G06F16/172 , G06F16/1734 , G06F16/1744 , G06F16/176 , G06F16/1767 , G06F16/178 , G06F16/1787 , G06F16/18 , G06F16/182 , G06F16/183 , G06F16/1844 , G06F16/185 , G06F16/2246 , G06F16/2379 , G06F16/24552 , G06F16/27 , G06F16/275 , G06F16/907 , G06F16/958 , G06F21/6218 , G06F2221/2141 , H04L9/3213 , H04L9/3247 , H04L63/10 , H04L63/101 , H04L67/06 , H04L67/1095 , H04L67/1097 , H04L67/306 , H04L67/42
摘要： 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.

7. 发明申请

US20190205426A1 CONTENT MANAGEMENT CLIENT SYNCHRONIZATION SERVICE 审中-公开
公开(公告)号：US20190205426A1
公开(公告)日：2019-07-04
申请号：US15868489
申请日：2018-01-11
申请人： Dropbox, Inc.
发明人： Isaac Goldberg , Sujay Jayakar , John Lai , Robert Ying , Nipunn Koorapati , Gautam Gupta , Geoffry Song , Elmer Charles Jubb, IV
IPC分类号： G06F17/30 , H04L29/08
摘要： The disclosed technology relates to a system configured to identify at least one difference between a sync tree and at least one of 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 may further generate, based on the at least one difference, a set of operations configured to converge the server state and the file system state and manage the execution of the set of operations.

8. 发明授权

US10133804B2 Content item block replication protocol for multi-premises hosting of digital content items 有权
公开(公告)号：US10133804B2
公开(公告)日：2018-11-20
申请号：US15603193
申请日：2017-05-23
申请人： Dropbox, Inc.
发明人： Nipunn Koorapati , Christopher Rude , Marcio von Muhlen , Nils Bunger
IPC分类号： G06F17/30 , H04L29/08 , H04L12/801 , H04L29/12
摘要： A content item block replication protocol for multi-premises hosting of digital content items. In one embodiment, for example, a method comprises: receiving, from a server, a server journal entry identifying one or more content item blocks of a content item represented by the server journal entry; storing a replication log entry corresponding to the server journal entry in a replication log, the replication log entry identifying the one or more content item blocks of the content item represented by the server journal entry and identifying a block server; and either offering to send the one or more content item blocks identified in the replication log entry to the block server identified in the replication log entry, or downloading the one or more content item blocks identified in the replication log entry from the block server identified in the replication log entry.

9. 发明授权

US09537952B1 Apparent cloud access for hosted content items 有权
标题翻译：托管内容项的显示云访问
公开(公告)号：US09537952B1
公开(公告)日：2017-01-03
申请号：US15010235
申请日：2016-01-29
申请人： Dropbox, Inc.
发明人： Nipunn Koorapati , Christopher Rude , Marcio von Muhlen , Nils Bunger
IPC分类号： G06F15/167 , H04L29/08 , H04L29/06 , G06F17/30
CPC分类号： H04L41/046 , G06F17/30194 , H04L67/02 , H04L67/06 , H04L67/1097 , H04L67/32
摘要： A technique and various aspects thereof for apparent cloud access of a hosted content item. In one embodiment, for example, a method performed at a personal computing device comprising 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.
摘要翻译：用于托管内容项的明显云访问的技术及其各个方面。在一个实施例中，例如，在包括用户代理的个人计算设备处执行的方法包括：从用户代理接收对内容项的块代理请求; 确定构成内容项的内容项块的内容项标识符; 确定构成内容项目的内容项目块中的哪个（如果有的话）没有被存储在个人计算设备的本地存储器中; 从在线内容管理系统的块服务器下载未存储在个人计算设备的本地存储器中的任何内容项目块; 以及响应于所述块代理请求向所述用户代理发送构成所述内容项的每个内容项块的数据。

10. 发明授权

US09509747B2 Content item synchronization by block 有权
标题翻译：内容项同步按块
公开(公告)号：US09509747B2
公开(公告)日：2016-11-29
申请号：US14162528
申请日：2014-01-23
申请人： Dropbox, Inc.
发明人： Bogdan-Cristian Tataroiu , Nipunn Koorapati
IPC分类号： G06F15/16 , H04L29/08 , H04N21/83 , H04N21/278
CPC分类号： H04L67/1097 , H04L67/02 , H04L67/06 , H04L67/1095 , H04N21/278 , H04N21/83
摘要： 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.
摘要翻译：内容管理系统跨客户端计算系统同步内容项。将内容项目发送到内容管理系统并作为具有固定大小的数据块进行管理。当在客户端将新的内容项目添加到同步数据时，客户端将该块和块列表发送到内容管理系统。内容管理系统使用块列表来确定期望在内容管理系统处被接收的块，并且客户端开始向内容管理系统发送内容项的块。当在内容管理系统处接收到的块匹配预期的块时，内容管理系统在接收到内容管理系统的块列表上的所有块之前通知接收客户端开始接收内容项的块。这使得内容项目能够在将内容项目实际进入内容管理系统之前开始跨客户端同步。

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