User Behavior Model and Statistical Transition Map to Assist Advanced WLAN Applications
    11.
    发明申请
    User Behavior Model and Statistical Transition Map to Assist Advanced WLAN Applications 有权
    用户行为模型和统计过渡映射来辅助高级WLAN应用

    公开(公告)号:US20130107728A1

    公开(公告)日:2013-05-02

    申请号:US13283741

    申请日:2011-10-28

    IPC分类号: H04W64/00 H04W84/12

    CPC分类号: H04W64/006 G01S5/0278

    摘要: A statistical transition map is built based on mobile wireless device user mobility history data. This data is useful to assist various wireless local area network applications. Received signal strength and location trace information associated with movements of mobile wireless devices in a wireless network is collected. The received signal strength and location trace information is converted to a sequence of natural language pseudo-location word labels representing pseudo-locations of each mobile wireless device as each mobile wireless device moves about with respect to a plurality of wireless access point devices in the wireless network. A statistical transition map is generated for each mobile wireless device from the sequence of natural language pseudo-location word labels using a natural language model. A probability of a next pseudo-location for a particular mobile wireless device is computed based on its current location and its statistical transition map.

    摘要翻译: 基于移动无线设备用户移动性历史数据构建统计转换图。 该数据有助于各种无线局域网应用。 收集与无线网络中的移动无线设备的移动相关联的接收信号强度和位置跟踪信息。 随着每个移动无线设备相对于无线中的多个无线接入点设备移动,接收到的信号强度和位置跟踪信息被转换成表示每个移动无线设备的伪位置的自然语言伪位置字标签序列 网络。 使用自然语言模型,从自然语言伪位置词标签的序列为每个移动无线设备生成统计转换图。 基于其当前位置及其统计转换图来计算特定移动无线设备的下一个伪位置的概率。

    Glycosidase inhibitors and methods of synthesizing same
    12.
    发明授权
    Glycosidase inhibitors and methods of synthesizing same 有权
    糖苷酶抑制剂及其合成方法

    公开(公告)号:US08389565B2

    公开(公告)日:2013-03-05

    申请号:US11368014

    申请日:2006-03-02

    摘要: Methods for synthesizing Salacinol, its stereoisomers, and analogues, homologues and other derivatives thereof potentially useful as glycosidase inhibitors. In some embodiments the compounds of the invention may have the general formula (I) or (II): The synthetic schemes may comprise reacting a cyclic sulfate with a 5-membered ring sugar containing a heteroatom (X). The heteroatom preferably comprises sulfur, selenium, or nitrogen. The cyclic sulfate and ring sugar reagents may be readily prepared from carbohydrate precursors, such as D-glucose, L-glucose, D-xylose and L-xylose. The target compounds are prepared by opening of the cyclic sulfates by nucleophilic attack of the heteroatoms on the 5-membered ring sugars. The resulting heterocyclic compounds have a stable, inner salt structure comprising a heteroatom cation and a sulfate anion. The synthetic schemes yield various stereoisomers of the target compounds.

    摘要翻译: 合成Salacinol,其立体异构体和类似物,可能用作糖苷酶抑制剂的同系物和其他衍生物的方法。 在一些实施方案中,本发明的化合物可具有通式(I)或(II):合成方案可包括使环硫酸酯与含有杂原子(X)的5元环糖反应。 杂原子优选包含硫,硒或氮。 环状硫酸盐和环糖试剂可以容易地从碳水化合物前体如D-葡萄糖,L-葡萄糖,D-木糖和L-木糖制备。 通过在5元环糖上的杂原子的亲核攻击来打开环状硫酸盐来制备目标化合物。 所得的杂环化合物具有包含杂原子阳离子和硫酸根阴离子的稳定的内盐结构。 合成方案产生目标化合物的各种立体异构体。

    LOW VARIATION CURRENT MULTIPLIER
    13.
    发明申请
    LOW VARIATION CURRENT MULTIPLIER 有权
    低变量电流乘法器

    公开(公告)号:US20130029620A1

    公开(公告)日:2013-01-31

    申请号:US13559275

    申请日:2012-07-26

    IPC分类号: G06G7/16 H04B1/04 H03F3/213

    摘要: Aspects of the present disclosure relate to a current multiplier that can generate an output current with high linearity and/or high temperature compensation. Such current multipliers can be implemented by complementary metal oxide semiconductor (CMOS) circuit elements. In one embodiment, the current multiplier can include a current divider and a core current multiplier. The current divider can generate a divided current by dividing an input current by an adjustable division ratio. The division ratio can be adjusted, for example, based on a comparison of the input current with a reference current. The core current multiplier can generate the output current based on multiplying the divided current and a different current. According to certain embodiments, the output current can be maintained within a predetermined range as the input current to the current divider varies within a relatively wide range.

    摘要翻译: 本公开的方面涉及可以产生具有高线性度和/或高温度补偿的输出电流的电流乘法器。 这种电流乘法器可以由互补金属氧化物半导体(CMOS)电路元件实现。 在一个实施例中,电流乘法器可以包括分流器和核心电流倍增器。 电流分压器可以通过将输入电流除以可调分频比来产生分压电流。 例如,可以基于输入电流与参考电流的比较来调整分频比。 核心电流乘数可以基于乘以分流电流和不同电流来产生输出电流。 根据某些实施例,当到分流器的输入电流在相对宽的范围内变化时,输出电流可以保持在预定范围内。

    METHOD AND SYSTEM FOR ACHIEVING DATA DE-DUPLICATION ON A BLOCK-LEVEL STORAGE VIRTUALIZATION DEVICE
    15.
    发明申请
    METHOD AND SYSTEM FOR ACHIEVING DATA DE-DUPLICATION ON A BLOCK-LEVEL STORAGE VIRTUALIZATION DEVICE 审中-公开
    用于在块级存储虚拟化设备上实现数据去重现的方法和系统

    公开(公告)号:US20120317084A1

    公开(公告)日:2012-12-13

    申请号:US13380935

    申请日:2011-08-01

    申请人: Hui Liu

    发明人: Hui Liu

    IPC分类号: G06F17/30

    摘要: A method and system for achieving data de-duplication on a block-level storage virtualization device belonging to the field of data storage technologies, is disclosed. The method comprises: deleting the duplicate data in the actual physical data corresponding to the specified virtual LBA address space to obtain the data extents after physical data is de-duplicated; establishing the correspondence between the virtual LBA address space and the data extents after the physical data is de-duplicated; according to the correspondence and metadata information of the data extents, obtaining the storage position information of the actual physical data corresponding to the virtual LBA address space pointed by external data read and write requests to complete the I/O redirection. This invention also provides a system for achieving data de-duplication on a block-level storage virtualization device. This invention can delete duplicate data across hosts and storage devices, to achieve a wider scope of data de-duplication.

    摘要翻译: 公开了一种用于在属于数据存储技术领域的块级存储虚拟化设备上实现数据重复数据删除的方法和系统。 该方法包括:删除与指定的虚拟LBA地址空间相对应的实际物理数据中的重复数据,以在物理数据被重复之后获得数据扩展; 在物理数据被重新复制之后,建立虚拟LBA地址空间与数据盘区之间的对应关系; 根据数据盘区的对应关系和元数据信息,获取与通过外部数据读取和写入请求指出的虚拟LBA地址空间相对应的实际物理数据的存储位置信息,以完成I / O重定向。 本发明还提供了一种用于在块级存储虚拟化设备上实现数据重复数据删除的系统。 本发明可以跨主机和存储设备删除重复数据,以实现更广泛的数据重复数据删除。

    Cloud Storage Data Storing and Retrieving Method, Apparatus and System
    17.
    发明申请
    Cloud Storage Data Storing and Retrieving Method, Apparatus and System 审中-公开
    云存储数据存储和检索方法,设备和系统

    公开(公告)号:US20120136836A1

    公开(公告)日:2012-05-31

    申请号:US12999261

    申请日:2010-12-01

    申请人: Hui Liu

    发明人: Hui Liu

    IPC分类号: G06F17/30

    CPC分类号: G06F21/6227 G06F16/24573

    摘要: The present application relates to cloud storage technology and especially relates to a cloud storage data store and retrieval method, apparatus and system. The data storing method comprise grouping source data to be stored according to a predetermined grouping rule; reorganizing the content of the grouped source data to form new data; transmitting the new data to a cloud storage data center for storage. The data retrieval method comprises, as requested, retrieving the data from a cloud storage data center; acquiring data recovery information corresponding to the data; restoring the data to source data according to the data recovery information. This application also provides a cloud storage data storing and retrieving apparatus and system. This invention can improve the data security of cloud storage and mitigate the risk of user data illegal leak and decryption.

    摘要翻译: 本申请涉及云存储技术,特别涉及云存储数据存储和检索方法,装置和系统。 数据存储方法包括根据预定的分组规则对要存储的源数据进行分组; 重新组织分组的源数据的内容以形成新的数据; 将新数据传输到云存储数据中心进行存储。 数据检索方法按照要求从云存储数据中心检索数据; 获取对应于数据的数据恢复信息; 根据数据恢复信息将数据恢复到源数据。 该应用还提供了云存储数据存储和检索装置和系统。 本发明可以提高云存储的数据安全性,减轻用户数据的非法泄漏和解密风险。

    Cloud Storage Data Access Method, Apparatus and System Based on OTP
    18.
    发明申请
    Cloud Storage Data Access Method, Apparatus and System Based on OTP 有权
    云存储数据访问方法,基于OTP的设备和系统

    公开(公告)号:US20120134495A1

    公开(公告)日:2012-05-31

    申请号:US12999249

    申请日:2010-12-01

    申请人: Hui Liu

    发明人: Hui Liu

    IPC分类号: H04L9/00

    CPC分类号: H04L9/0656 H04L9/0894

    摘要: The present application relates to cloud storage technology and especially relates to a cloud storage data access method, apparatus and system based on OTP. This method includes: generating and storing true random numbers of a predetermined length and a random seed of a predetermined length composed of the true random numbers via a preset method; acquiring data from the random seed for several times and cascading the data acquired each time into a true random data string of no shorter than the length of plaintext; based on the true random data string, generating a true random cryptographic key of no shorter than the length of the plaintext, encrypting the plaintext using this cryptographic key and transmitting ciphertext to a cloud storage data center. This application also provides a cloud storage data access apparatus and system based on OTP. The method, apparatus and system introduced by this invention can generate and store sufficient true random cryptographic key with relatively small physical space occupancy in comparison with that of plaintext, thereby enabling OTP to be applied into cloud storage data security protection.

    摘要翻译: 本申请涉及云存储技术,特别涉及基于OTP的云存储数据访问方法,装置和系统。 该方法包括:通过预设方法生成并存储由真实随机数组成的预定长度的真实随机数和预定长度的随机种子; 从随机种子获取数据多次,将每次获取的数据级联成不短于明文长度的真实随机数据串; 基于真实的随机数据串,生成不短于明文长度的真实随机加密密钥,使用该加密密钥加密明文,并将密文发送到云存储数据中心。 该应用还提供了基于OTP的云存储数据访问设备和系统。 本发明引入的方法,装置和系统可以生成和存储足够的真实随机加密密钥,与明文相比具有相对小的物理空间占用,从而使OTP能够应用于云存储数据安全保护。

    CONTINUOUSLY VARIABLE SWITCHED CAPACITOR DC-DC VOLTAGE CONVERTER
    19.
    发明申请
    CONTINUOUSLY VARIABLE SWITCHED CAPACITOR DC-DC VOLTAGE CONVERTER 审中-公开
    连续可变开关电容DC-DC电压转换器

    公开(公告)号:US20110128761A1

    公开(公告)日:2011-06-02

    申请号:US12955989

    申请日:2010-11-30

    IPC分类号: H02M3/07

    CPC分类号: H02M3/06 H02M3/07 H02M3/158

    摘要: A voltage converter is switched among two or more modes to produce an output voltage matching a reference voltage that can be of an intermediate level between discrete levels corresponding to the modes. The output voltage is compared with the reference voltage to determine whether to adjust the mode.

    摘要翻译: 电压转换器在两种或多种模式之间切换以产生匹配参考电压的输出电压,该参考电压可以是对应于模式的离散电平之间的中间电平。 将输出电压与参考电压进行比较,以确定是否调整模式。

    Current reference source circuit that is independent of power supply
    20.
    发明申请
    Current reference source circuit that is independent of power supply 审中-公开
    电流参考源电路独立于电源

    公开(公告)号:US20110121885A1

    公开(公告)日:2011-05-26

    申请号:US12843654

    申请日:2010-07-26

    申请人: Hui Liu

    发明人: Hui Liu

    IPC分类号: H03K17/687

    CPC分类号: G05F3/242

    摘要: A current reference source circuit that is independent of power supply which is used for producing a current reference source that is independent of power supply, the circuit at least includes a resistor Rs and a mirror image circuit which is formed with four MOSs, M1, M2, M3, M4, there is another mirror circuit branch besides the mirror circuit, the current of the resistor Rs, the present invention modifies the traditional current reference source circuit that is independent of power supply, the derived current formula adds one adjustable parameter M, so as to make the design more flexible, so that when a very small reference current is required, it can be achieved by keeping the W/L of the NMOS and the resistor Rs, and simply increasing parameter M in the extra mirror circuit branch.

    摘要翻译: 电流参考源电路,其独立于用于产生与电源无关的电流参考源的电源,该电路至少包括电阻器Rs和形成有四个MOS,M1,M2的镜像电路 M3,M4除了镜面电路之外还有一个镜像电路支路,电阻Rs的电流,本发明修改了与电源无关的传统电流参考源电路,派生的电流公式增加了一个可调参数M, 为了使设计更加灵活,因此当需要非常小的参考电流时,可以通过保持NMOS和电阻Rs的W / L,并简单地增加额外的镜像电路分支中的参数M来实现。