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    • 1. 发明专利
    • Method for securely obtaining aggregate statistic related to private data
    • 用于安全地获得与私人数据相关的聚合统计的方法
    • JP2014178680A
    • 2014-09-25
    • JP2014031397
    • 2014-02-21
    • Mitsubishi Electric Corp三菱電機株式会社
    • WANG YELIN BING-RONGRANE SHANTANU
    • G09C1/00
    • G06F21/6254H04L9/00H04L9/0656H04L2209/42
    • PROBLEM TO BE SOLVED: To provide a method for obtaining aggregate statistics while protecting the privacy of data from client data stored in a server.SOLUTION: At first, first data and second data independent in one or more clients are sampled such that the sampled data are obtained. Thus, aggregate statistics related to private data can be securely obtained. In this case, a sampling parameter is substantially smaller than the length of the data. The sampled data are encrypted such that the encrypted data are obtained, and then the encrypted data are connected. The connected encrypted data are randomized such that the randomized data are obtained. In an authorized third person processor, the joint distribution of the first data and the second data is estimated such that the difference privacy requirements of the first data and the second data are satisfied from the randomized encrypted data.
    • 要解决的问题:提供一种在保护存储在服务器中的客户数据的数据隐私的同时获得聚合统计的方法。首先,对一个或多个客户端中独立的第一数据和第二数据进行采样,使得采样数据 获得。 因此,可以安全地获得与私有数据相关的统计信息。 在这种情况下,采样参数显着小于数据的长度。 采样数据被加密,从而获得加密的数据,然后连接加密的数据。 所连接的加密数据被随机化,从而获得随机数据。 在授权的第三人称处理器中,估计第一数据和第二数据的联合分配,使得从随机加密数据中满足第一数据和第二数据的差异隐私要求。
    • 3. 发明专利
    • Outsourcing method of data for secure processing by unreliable third person
    • 数据的外部方法由不可靠的第三人安全处理
    • JP2014003602A
    • 2014-01-09
    • JP2013121531
    • 2013-06-10
    • Mitsubishi Electric Corp三菱電機株式会社
    • RANE SHANTANUSUN WEI
    • H04L9/36H04L9/20H04L9/32
    • H04L63/0428H04L41/069H04L63/0407
    • PROBLEM TO BE SOLVED: To provide a method for keeping data secure even in data processing by a third person, where the data is outsourced by a client to a server.SOLUTION: Based on an event in a client, data is created by the client. Each event is associated with a first dimension, a second dimension, and an amount. A random value is created for each interval of the first dimension, and each second dimension instance. The amount of each event is changed using a random value, and a changed amount is determined. Total up to the present time is determined for each interval of the first dimension and for each second dimension instance, based on the changed amount, and transmitted to a third person. The accurate processing results of the changed amount and the total up to the present time by the third person are received by the client and can be decoded.
    • 要解决的问题:提供一种即使在由客户端将数据外包给服务器的第三人的数据处理中也保持数据安全的方法。解决方案:根据客户端中的事件,客户端创建数据 。 每个事件与第一维度,第二维度和金额相关联。 为第一维度和每个第二维度实例的每个间隔创建一个随机值。 使用随机值改变每个事件的量,并且确定改变的量。 对于第一维度的每个间隔和对于每个第二维度实例,基于改变的数量确定到当前时间的总计,并且发送给第三人。 由第三人接收到的改变量和总计的精确处理结果由客户接收并且可以被解码。
    • 7. 发明专利
    • Method for encoding incoming signal
    • 编码信号的方法
    • JP2014132439A
    • 2014-07-17
    • JP2013241500
    • 2013-11-22
    • Mitsubishi Electric Corp三菱電機株式会社
    • BOUFOUNOS PETROS TRANE SHANTANU
    • G06T7/00G06F17/30G10L19/00
    • PROBLEM TO BE SOLVED: To search for a signal similar to a query signal by encoding data with the use of general-purpose quantization and embedding.SOLUTION: A distance between data is encoded as a result of execution of random projection 710 and performance of dithering 720 and scaling 730 on all values with the use of specific scaling. Dithered projection and scaled projection which are obtained as a result are quantized with the use of a non-monotonous 1-bit quantizer and a vector of bits indicating a signal is generated. A distance between the signals can be approximately calculated from a vector corresponding to the bit, by calculating a Hamming distance of two vectors of the bit. The calculation is almost correct up to a specific distance determined by the scaling, but is not correct beyond the distance.
    • 要解决的问题:通过使用通用量化和嵌入来编码数据来搜索类似于查询信号的信号。解决方案:作为执行随机投影710并且执行抖动的结果,数据之间的距离被编码 720和使用特定比例缩放所有值的缩放730。 作为结果获得的抖动投影和缩放投影通过使用非单调1位量化器进行量化,并且生成指示信号的位的向量。 通过计算该比特的两个向量的汉明距离,可以从与比特相对应的向量近似地计算信号之间的距离。 计算几乎是正确的,直到由缩放确定的特定距离,但距离不正确。
    • 8. 发明专利
    • Privacy safeguard statistic analysis for dispersion database
    • 用于分散数据库的隐私统计分析
    • JP2014098895A
    • 2014-05-29
    • JP2013216154
    • 2013-10-17
    • Mitsubishi Electric Corp三菱電機株式会社
    • WANG YELIN BING-RONGRANE SHANTANU
    • G09C1/00
    • G06F21/60G06F21/6245G06F21/6254
    • PROBLEM TO BE SOLVED: To perform statistic analysis in which privacy such as the identification information of a data source and the detailed contents of live data can be safeguarded for private dispersion database.SOLUTION: In compaction statistic, randomized data (hat) X and (hat) Y are acquired by separately subjecting data X and Y to first randomization. Subsequently, the randomized data (hat) X and (hat) Y are subjected to second randomization, thereby acquiring randomized data (tilde) X and (tilde) Y for a server and helper information Tx|x and Ty|y for a client. Here, T represents an experience distribution, and second randomization safeguards the privacy of the compaction statistic of the data X and Y. Next, the server acquires Tx, y. Lastly, a client acquires estimated (dots) Tx, y, by applying the helper information Tx|x and Ty|y in Tx, y. Here, "|" and "," between X and Y represent a conditioned distribution and a joined distribution respectively.
    • 要解决的问题:执行统计分析,其中可以保护诸如数据源的识别信息和实时数据的详细内容之类的隐私专用分散数据库。解决方案:在压缩统计中,随机数据(帽)X和( 帽子)Y是通过分别使数据X和Y进行第一随机化来获得的。 随后,对随机化数据(hat)X和(hat)Y进行第二随机化,从而获得用于服务器的随机数据(波浪号)X和(波形符号)Y以及客户端的辅助信息Tx | x和Ty | y。 这里,T表示经验分布,第二随机化保护数据X和Y的压缩统计的隐私。接下来,服务器获取Tx,y。 最后,客户端通过在Tx,y中应用辅助信息Tx | x和Ty | y来获取估计的(点)Tx,y。 在这里,“|” X和Y之间的“,”分别表示调节分布和连接分布。
    • 10. 发明专利
    • Method for distributed information source encoding of wavelet coefficient in zero tree
    • 在零树中分配信号源编码小波系数的方法
    • JP2013059021A
    • 2013-03-28
    • JP2012154508
    • 2012-07-10
    • Mitsubishi Electric Corp三菱電機株式会社
    • RANE SHANTANUWANG YIGEBOUFOUNOS PETROS TANTHONY VETRO
    • H04N1/41H03M7/30H04N7/26
    • H04N19/395H04N19/463H04N19/647
    • PROBLEM TO BE SOLVED: To provide an efficient distributed information source encoding method of data subjected to wavelet conversion.SOLUTION: The distributed information source encoding method includes, in descending order for each bit plane, a step for acquiring a list of important pixels (LSP), a step for acquiring a list of non-important pixels (LIP), a step for synchronizing the LSP, LIP and LIS of an information source image with those of a key image, a step for configuring a temporary list (TLIS) of a non-important set of the information source image, and a step for acquiring a syndrome corresponding to the size and positive/negative code of a pixel in the information source image by applying syndrome encoding to the LSP, LIP and TLIS of the information source image. These steps are executed in a processor.
    • 要解决的问题:提供经受小波变换的数据的有效的分布式信息源编码方法。 解决方案:分布式信息源编码方法按照每个位平面的降序包括用于获取重要像素(LSP)的列表的步骤,用于获取非重要像素列表(LIP)的步骤, 步骤,用于使信息源图像的LSP,LIP和LIS与关键图像的LSP,LIP和LIS同步,用于配置信息源图像的非重要组的临时列表(TLIS)的步骤,以及用于获取综合征的步骤 对应于信息源图像中的像素的大小和正/负码,通过对信息源图像的LSP,LIP和TLIS应用校正子编码。 这些步骤在处理器中执行。 版权所有(C)2013,JPO&INPIT