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1. 发明申请

US20070018858A1 Content-based segmentation scheme for data compression in storage and transmission including hierarchical segment representation 有权
标题翻译：基于内容的分段方案用于存储和传输中的数据压缩，包括分层段表示
公开(公告)号：US20070018858A1
公开(公告)日：2007-01-25
申请号：US11508531
申请日：2006-08-22
申请人： Steven McCanne , Michael Demmer
发明人： Steven McCanne , Michael Demmer
IPC分类号： H03M7/00
CPC分类号： H03M7/30 , Y10S707/99943 , Y10S707/99953
摘要： In a coding system, input data within a system is encoded. The input data might include sequences of symbols that repeat in the input data or occur in other input data encoded in the system. The encoding includes determining a target segment size, determining a window size, identifying a fingerprint within a window of symbols at an offset in the input data, determining whether the offset is to be designated as a cut point and segmenting the input data as indicated by the set of cut points. For each segment so identified, the encoder determines whether the segment is to be a referenced segment or an unreferenced segment, replacing the segment data of each referenced segment with a reference label and storing a reference binding in a persistent segment store for each referenced segment, if needed. Hierarchically, the process can be repeated by grouping references into groups, replacing the grouped references with a group label, storing a binding between the grouped references and group label, if one is not already present, and repeating the process. The number of levels of hierarchy can be fixed in advanced or it can be determined from the content encoded.
摘要翻译：在编码系统中，对系统内的输入数据进行编码。输入数据可能包括在输入数据中重复或发生在系统中编码的其他输入数据中的符号序列。编码包括确定目标段大小，确定窗口大小，识别在输入数据中的偏移处的符号窗口内的指纹，确定偏移是否被指定为切割点并分割输入数据，如一组切点。对于如此识别的每个段，编码器确定段是引用段还是未引用段，用参考标记替换每个引用段的段数据，并将引用绑定存储在每个引用段的持久段存储中，如果需要的话。分层次地，可以通过将引用分组为组来重复进程，用组标签替换分组的引用，存储分组的引用和组标签之间的绑定（如果尚未存在），并重复该过程。层次级别的数量可以固定为高级，也可以从编码的内容中确定。

2. 发明申请

US20040088376A1 Transaction accelerator for client-server communication systems 有权
标题翻译：客户端 - 服务器通信系统的事务加速器
公开(公告)号：US20040088376A1
公开(公告)日：2004-05-06
申请号：US10285315
申请日：2002-10-30
申请人： NBT Technology, Inc.
发明人： Steven McCanne , Michael J. Demmer
IPC分类号： G06F015/16
CPC分类号： H04L67/2828 , H04L67/28 , H04L67/2852 , H04L67/288 , H04L67/289 , H04L69/329
摘要： In a network having transaction acceleration, for an accelerated transaction, a client directs a request to a client-side transaction handler that forwards the request to a server-side transaction handler, which in turn provides the request, or a representation thereof, to a server for responding to the request. The server sends the response to the server-side transaction handler, which forwards the response to the client-side transaction handler, which in turn provides the response to the client. Transactions are accelerated by the transaction handlers by storing segments of data used in the transactions in persistent segment storage accessible to the server-side transaction handler and in persistent segment storage accessible to the client-side transaction handler. When data is to be sent between the transaction handlers, the sending transaction handler compares the segments of the data to be sent with segments stored in its persistent segment storage and replaces segments of data with references to entries in its persistent segment storage that match or closely match the segments of data to be replaced. The receiving transaction store reconstructs the data sent by replacing segment references with corresponding segment data from its persistent segment storage, requesting missing segments from the sender as needed. The transaction accelerators could handle multiple clients and/or multiple servers and the segments stored in the persistent segment stores can relate to different transactions, different clients and/or different servers. Persistent segment stores can be prepopulated with segment data from other transaction accelerators.
摘要翻译：在具有事务加速的网络中，对于加速事务，客户端将请求引导到客户端事务处理程序，该客户端事务处理程序将请求转发到服务器端事务处理程序，服务器端事务处理程序又将请求或其表示提供给服务器来响应请求。服务器将响应发送到服务器端事务处理程序，该处理程序将响应转发给客户端事务处理程序，后者又向客户端提供响应。事务处理程序通过将事务中使用的数据段存储在服务器端事务处理程序可访问的持久段存储器中，以及客户端事务处理程序可访问的持久段存储中来加速事务处理。当在事务处理程序之间发送数据时，发送事务处理程序将要发送的数据的段与存储在其持久段存储中的段进行比较，并且通过引用其持久段存储中匹配或紧密的条目替换数据段匹配要替换的数据段。接收事务存储器通过用来自其持久段存储器的相应段数据替换段引用来重构发送的数据，根据需要从发送方请求丢失段。交易加速器可以处理多个客户端和/或多个服务器，并且存储在持久性段存储中的段可以涉及不同的事务，不同的客户端和/或不同的服务器。可以使用来自其他事务加速器的段数据预先存储持久性段存储。

3. 发明授权

US07116249B2 Content-based segmentation scheme for data compression in storage and transmission including hierarchical segment representation 有权
公开(公告)号：US07116249B2
公开(公告)日：2006-10-03
申请号：US11223789
申请日：2005-09-08
申请人： Steven McCanne , Michael J. Demmer
发明人： Steven McCanne , Michael J. Demmer
IPC分类号： H03M7/38
CPC分类号： H03M7/30 , Y10S707/99943 , Y10S707/99953
摘要： In a coding system, input data within a system is encoded. The input data might include sequences of symbols that repeat in the input data or occur in other input data encoded in the system. The encoding includes determining a target segment size, determining a window size, identifying a fingerprint within a window of symbols at an offset in the input data, determining whether the offset is to be designated as a cut point and segmenting the input data as indicated by the set of cut points. For each segment so identified, the encoder determines whether the segment is to be a referenced segment or an unreferenced segment, replacing the segment data of each referenced segment with a reference label and storing a reference binding in a persistent segment store for each referenced segment, if needed. Hierarchically, the process can be repeated by grouping references into groups, replacing the grouped references with a group label, storing a binding between the grouped references and group label, if one is not already present, and repeating the process. The number of levels of hierarchy can be fixed in advanced or it can be determined from the content encoded.

4. 发明申请

US20040215746A1 Transparent client-server transaction accelerator 有权
标题翻译：透明的客户端 - 服务器事务加速器
公开(公告)号：US20040215746A1
公开(公告)日：2004-10-28
申请号：US10640405
申请日：2003-08-12
申请人： NBT Technology, Inc.
发明人： Steven McCanne , Michael J. Demmer , Arvind Jain , David Tze-Si Wu
IPC分类号： G06F015/16
CPC分类号： H04L67/2819 , H04L41/12 , H04L67/28 , H04L67/2828 , H04L67/2876 , H04L67/42 , H04L69/12 , H04L69/329 , H04L69/40
摘要： In a network that conveys requests from clients to servers and responses from servers to clients, a network transaction accelerator for accelerating transactions involving data transfer between at least one client and at least one server over a network comprising a client-side engine, a server-side engine and a transaction predictor configured to predict, based on past transactions, which transactions are likely to occur in the future between the client and server. The transaction predictor might be in the server-side engine, the client-side engine, or both. The client-side engine receives indications of requests from the client, a transaction buffer for storing results of predicted transactions received from the server or the server-side engine ahead of receipt of a corresponding request, and a collator for collating the requests from the client with the stored results or received results, wherein a request and a response that are matched by the collator are identified and the matched response is provided to the client in response to the matched request. The server-side engine receives indications of transactions including requests and responses and conveys requests to the server in response to actual transactions or predicted transactions.
摘要翻译：在将来自客户机的请求传达到服务器的请求和从服务器到客户机的响应的网络中，提供一种网络事务加速器，用于加速涉及通过网络的至少一个客户端与至少一个服务器之间的数据传输的事务，包括客户端引擎，侧面引擎和事务预测器被配置为基于过去的事务来预测在将来在客户端和服务器之间可能发生的事务。事务预测器可能位于服务器端引擎，客户端引擎或两者中。客户端引擎接收来自客户端的请求的指示，用于在接收到相应请求之前存储从服务器或服务器端引擎接收的预测事务的结果的事务缓冲器，以及用于对来自客户端的请求进行整理的归类器存储结果或接收结果，其中识别由归类器匹配的请求和响应，并且响应于匹配的请求将匹配响应提供给客户端。服务器端引擎接收包括请求和响应的事务的指示，并且响应于实际的事务或预测的事务将请求传送到服务器。

5. 发明申请

US20060061495A1 Content-based segmentation scheme for data compression in storage and transmission including hierarchical segment representation 有权
公开(公告)号：US20060061495A1
公开(公告)日：2006-03-23
申请号：US11223789
申请日：2005-09-08
申请人： Steven McCanne , Michael Demmer
发明人： Steven McCanne , Michael Demmer
IPC分类号： H03M7/00
CPC分类号： H03M7/30 , Y10S707/99943 , Y10S707/99953
摘要： In a coding system, input data within a system is encoded. The input data might include sequences of symbols that repeat in the input data or occur in other input data encoded in the system. The encoding includes determining a target segment size, determining a window size, identifying a fingerprint within a window of symbols at an offset in the input data, determining whether the offset is to be designated as a cut point and segmenting the input data as indicated by the set of cut points. For each segment so identified, the encoder determines whether the segment is to be a referenced segment or an unreferenced segment, replacing the segment data of each referenced segment with a reference label and storing a reference binding in a persistent segment store for each referenced segment, if needed. Hierarchically, the process can be repeated by grouping references into groups, replacing the grouped references with a group label, storing a binding between the grouped references and group label, if one is not already present, and repeating the process. The number of levels of hierarchy can be fixed in advanced or it can be determined from the content encoded.

6. 发明申请

US20050125553A1 Content delivery for client-server protocols with user affinities using connection end-point proxies 有权
标题翻译：使用连接端点代理的具有用户亲和力的客户端 - 服务器协议的内容传递
公开(公告)号：US20050125553A1
公开(公告)日：2005-06-09
申请号：US10640459
申请日：2003-08-12
申请人： David Wu , Steven McCanne
发明人： David Wu , Steven McCanne
IPC分类号： G06F15/16 , H04L29/06 , H04L29/08
CPC分类号： H04L43/04 , H04L43/12 , H04L67/18 , H04L67/22 , H04L67/42 , H04W4/02 , H04W4/20
摘要： In a network supporting transactions between clients and servers over a network path having operating characteristics to overcome, data is transported to overcome the operating characteristics using user affinities and dynamic user location information to selectively preload data, or representations, signatures, segments, etc. of data, in order to overcome the one or more operating characteristic. Examples of operating characteristics to overcome include bandwidth limitations, errors and latency. The dynamic location information can be stored in data structures accessible by agents of a data server and the data structures are populated based on user activities with respect to proxies associated with user locations, or the dynamic location information can be obtained implicitly as proxies maintain connections after termination by clients and the use of those maintained connections for preloading of data for the users associated with those clients. The data being preloaded can be protocol-specific data or protocol-independent data.
摘要翻译：在支持通过具有要克服的操作特征的网络路径的客户端和服务器之间的事务的网络中，使用用户亲和度和动态用户位置信息传输数据以克服操作特征，以选择性地预加载数据或表示，签名，段等数据，以克服一个或多个操作特性。要克服的操作特性的示例包括带宽限制，错误和延迟。动态位置信息可以存储在可由数据服务器的代理访问的数据结构中，并且基于与用户位置相关联的代理的用户活动来填充数据结构，或者可以在代理维护连接之后隐含获取动态位置信息客户端的终止以及使用这些维护的连接来为与这些客户端相关联的用户预加载数据。预加载的数据可以是协议特定的数据或与协议无关的数据。

7. 发明授权

US06961009B2 Content-based segmentation scheme for data compression in storage and transmission including hierarchical segment representation 有权
公开(公告)号：US06961009B2
公开(公告)日：2005-11-01
申请号：US10968868
申请日：2004-10-18
申请人： Steven McCanne , Michael J. Demmer
发明人： Steven McCanne , Michael J. Demmer
IPC分类号： H03M7/30 , H03M7/34
CPC分类号： H03M7/30 , Y10S707/99943 , Y10S707/99953
摘要： In a coding system, input data within a system is encoded. The input data might include sequences of symbols that repeat in the input data or occur in other input data encoded in the system. The encoding includes determining a target segment size, determining a window size, identifying a fingerprint within a window of symbols at an offset in the input data, determining whether the offset is to be designated as a cut point and segmenting the input data as indicated by the set of cut points. For each segment so identified, the encoder determines whether the segment is to be a referenced segment or an unreferenced segment, replacing the segment data of each referenced segment with a reference label and storing a reference binding in a persistent segment store for each referenced segment, if needed. Hierarchically, the process can be repeated by grouping references into groups, replacing the grouped references with a group label, storing a binding between the grouped references and group label, if one is not already present, and repeating the process. The number of levels of hierarchy can be fixed in advanced or it can be determined from the content encoded.

8. 发明申请

US20040243703A1 Cooperative proxy auto-discovery and connection interception 有权
标题翻译：协同代理自动发现和连接拦截
公开(公告)号：US20040243703A1
公开(公告)日：2004-12-02
申请号：US10640562
申请日：2003-08-12
申请人： NBT Technology, Inc.
发明人： Michael J. Demmer , Steven McCanne , Alfred Landrum
IPC分类号： G06F015/173 , G06F015/16
CPC分类号： H04L67/2814 , H04L29/06 , H04L29/1233 , H04L41/12 , H04L61/25 , H04L67/2876 , H04L69/329 , H04L69/40
摘要： In a network supporting transactions between clients and servers and proxies that are interposable in a network path between at least one client and at least one server, wherein a pair of proxies can modify a packet stream between a client and a server such that packet data from the client to the server is transformed at a client-side proxy of the proxy pair and untransformed at a server-side proxy of proxy pair and such that packet data from the server to the client is transformed at the server-side proxy and untransformed at the client-side proxy, a method and apparatus for a discovering proxy to transparently discover its position in a proxy pair by using proxy signals to indicate to other proxies that could pair with the discovering proxy. A discovering proxy might determine that it is a client-side proxy by receipt of a packet from client without a proxy signal. A discovering proxy might determine that it is a server-side proxy by receipt of a packet from server without a return proxy signal. Once a proxy pair is discovered, that proxy pair might transform traffic from the server to the client or vice versa, transforming the traffic at one proxy of the proxy pair and untransforming the traffic at the other proxy of the pair.
摘要翻译：在支持客户端和服务器之间的事务的网络中，以及在至少一个客户端与至少一个服务器之间的网络路径中相互替代的代理，其中一对代理可以修改客户端和服务器之间的分组流，服务器的客户端在代理对的客户端代理处被转换，并且在代理对的服务器端代理处未被转换，并且使得从服务器到客户端的分组数据在服务器端代理处被转换，并且在客户端代理，用于发现代理的方法和装置，通过使用代理信号来透明地发现其在代理对中的位置，以指示可以与发现代理配对的其他代理。发现代理可以通过从客户端接收到没有代理信号的数据包来确定它是客户端代理。发现代理可以通过从没有返回代理信号的服务器接收到数据包来确定它是服务器端代理。一旦发现了代理对，该代理对可能会将流量从服务器转换到客户端，反之亦然，从而在代理对的一个代理处转换流量，并对该对的其他代理的流量进行转换。

9. 发明申请

US20040174276A1 Content-based segmentation scheme for data compression in storage and transmission including hierarchical segment representation 有权
公开(公告)号：US20040174276A1
公开(公告)日：2004-09-09
申请号：US10731687
申请日：2003-12-08
申请人： NBT Technology, Inc.
发明人： Steven McCanne , Michael J. Demmer
IPC分类号： H03M007/00
CPC分类号： H03M7/30 , Y10S707/99943 , Y10S707/99953
摘要： In a coding system, input data within a system is encoded. The input data might include sequences of symbols that repeat in the input data or occur in other input data encoded in the system. The encoding includes determining a target segment size, determining a window size, identifying a fingerprint within a window of symbols at an offset in the input data, determining whether the offset is to be designated as a cut point and segmenting the input data as indicated by the set of cut points. For each segment so identified, the encoder determines whether the segment is to be a referenced segment or an unreferenced segment, replacing the segment data of each referenced segment with a reference label and storing a reference binding in a persistent segment store for each referenced segment, if needed. Hierarchically, the process can be repeated by grouping references into groups, replacing the grouped references with a group label, storing a binding between the grouped references and group label, if one is not already present, and repeating the process. The number of levels of hierarchy can be fixed in advanced or it can be determined from the content encoded.

10. 发明申请

US20050162288A1 Content-based segmentation scheme for data compression in storage and transmission including hierarchical segment representation 有权
标题翻译：基于内容的分段方案用于存储和传输中的数据压缩，包括分层段表示
公开(公告)号：US20050162288A1
公开(公告)日：2005-07-28
申请号：US10968868
申请日：2004-10-18
申请人： Steven McCanne , Michael Demmer
发明人： Steven McCanne , Michael Demmer
IPC分类号： H03M7/30 , H03M7/34
CPC分类号： H03M7/30 , Y10S707/99943 , Y10S707/99953
摘要： In a coding system, input data within a system is encoded. The input data might include sequences of symbols that repeat in the input data or occur in other input data encoded in the system. The encoding includes determining a target segment size, determining a window size, identifying a fingerprint within a window of symbols at an offset in the input data, determining whether the offset is to be designated as a cut point and segmenting the input data as indicated by the set of cut points. For each segment so identified, the encoder determines whether the segment is to be a referenced segment or an unreferenced segment, replacing the segment data of each referenced segment with a reference label and storing a reference binding in a persistent segment store for each referenced segment, if needed. Hierarchically, the process can be repeated by grouping references into groups, replacing the grouped references with a group label, storing a binding between the grouped references and group label, if one is not already present, and repeating the process. The number of levels of hierarchy can be fixed in advanced or it can be determined from the content encoded.
摘要翻译：在编码系统中，对系统内的输入数据进行编码。输入数据可能包括在输入数据中重复或发生在系统中编码的其他输入数据中的符号序列。编码包括确定目标段大小，确定窗口大小，识别在输入数据中的偏移处的符号窗口内的指纹，确定偏移是否被指定为切割点并分割输入数据，如一组切点。对于如此识别的每个段，编码器确定段是引用段还是未引用段，用参考标记替换每个引用段的段数据，并将引用绑定存储在每个引用段的持久段存储中，如果需要的话。分层次地，可以通过将引用分组为组来重复进程，用组标签替换分组的引用，存储分组的引用和组标签之间的绑定（如果尚未存在），并重复该过程。层次级别的数量可以固定为高级，也可以从编码的内容中确定。

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