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    Blind OFDM channel estimation and identification using receiver diversity
    51.
    发明申请
    Blind OFDM channel estimation and identification using receiver diversity 有权
    使用接收机分集的盲模OFDM信道估计和识别

    公开(公告)号：US20040076112A1

    公开(公告)日：2004-04-22

    申请号：US10277417

    申请日：2002-10-22

    申请人： Syracuse University

    发明人： Biao Chen

    IPC分类号： H04J011/00

    CPC分类号： H04L25/0238 ,  H04L25/022 ,  H04L27/2601

    摘要： A method for blindly determining a channel impulse response (CIR) for a channel in an orthogonal frequency division multiplexing (OFDM) communications system includes constructing a matrix from two received signals. A singular value decomposition is performed on the matrix, which produces left and right singular matrixes. The right singular vector corresponding to the smallest singular value of the matrix is found, which yields the channel impulse response multiplied by an unknown scalar constant. The unknown scalar constant is then removed used known techniques. The method is data efficient, independent of the input symbol constellation, computationally efficient, and superior in performance compared with prior art blind algorithms.

    摘要翻译： 用于盲目确定正交频分复用（OFDM）通信系统中的信道的信道脉冲响应（CIR）的方法包括从两个接收信号构建矩阵。 对矩阵执行奇异值分解，产生左右奇异矩阵。 找到对应于矩阵的最小奇异值的右奇异矢量，其产生乘以未知标量常数的信道脉冲响应。 然后使用已知技术去除未知的标量常数。 该方法是数据有效的，与输入符号星座无关，计算效率高，而且与现有技术的盲算法相比性能优越。

    Platform-independent collaboration backbone and framework for forming virtual communities having virtual rooms with collaborative sessions
    52.
    发明授权
    Platform-independent collaboration backbone and framework for forming virtual communities having virtual rooms with collaborative sessions 失效
    平台独立的协作骨干和框架，用于形成具有协作会话的虚拟房间的虚拟社区

    公开(公告)号：US6078948A

    公开(公告)日：2000-06-20

    申请号：US17840

    申请日：1998-02-03

    申请人： Marek Podgorny ,  Lukasz Beca ,  Gang Cheng ,  Geoffrey C. Fox ,  Tomasz Jurga ,  Konrad Olszewski ,  Piotr Sokolowski ,  Krzysztof Walczak

    发明人： Marek Podgorny ,  Lukasz Beca ,  Gang Cheng ,  Geoffrey C. Fox ,  Tomasz Jurga ,  Konrad Olszewski ,  Piotr Sokolowski ,  Krzysztof Walczak

    IPC分类号： G06Q10/10 ,  H04L12/18 ,  H04L29/06 ,  H04L29/08 ,  G06F15/163

    CPC分类号： H04L67/34 ,  G06Q10/10 ,  H04L12/1822 ,  H04L29/06 ,  H04L67/10 ,  H04L63/08 ,  H04L63/10 ,  H04L67/38 ,  H04L69/329

    摘要： Platform-independent collaboration backbone and framework for forming virtual communities having virtual rooms with collaborative sessions. Demon logic is embedded in a room page as downloadable platform-independent instructions. The demon, when downloaded, is caused to be in communication with control logic and an application, which, for example, may itself be downloadable. The downloaded demon is also in communication with a server. The server is in communication with similarly-arranged, though not necessarily identical, clients, which for example may have the downloaded demon but a different arrangement of applications. The application at a first and second client node may collaborate by causing their respective demons to send messages from a predefined protocol to the server, which in turn will forward them to other relevant demons. Some of the messages are control messages which facilitate certain collaborative actions, such as joining a session or entering a room. Other messages carry meaning only to the applications. The collaborating applications need not be identical, and the system provides minimal constraints on developers. For example, there is no requirement that the applications operate off an identical data model. Rooms may be organized into communities, which for example may specify certain commonality among rooms, such as common user-authentication. When a user changes from one room to another, if the new room is in a different community, the user will need to go through user authentication-procedures of the new community to permit access.

    摘要翻译： 平台独立的协作骨干和框架，用于形成具有协作会话的虚拟房间的虚拟社区。 恶魔逻辑嵌入在房间页面中，作为可下载的与平台无关的指令。 恶魔在下载时被导致与控制逻辑和例如本身可以下载的应用程序通信。 下载的恶魔也与服务器通信。 服务器与类似布置的但不一定相同的客户端通信，客户端例如可以具有下载的恶魔，但是具有不同的应用安排。 第一和第二客户端节点处的应用可以通过使它们各自的恶魔从预定义的协议发送消息到服务器来进行协作，这又将其转发给其他相关的恶魔。 一些消息是有助于某些协作动作（例如加入会话或进入房间）的控制消息。 其他消息只对应用程序有意义。 协作应用程序不一定相同，系统对开发人员的约束最小化。 例如，不要求应用程序在相同的数据模型下运行。 房间可以被组织到社区中，例如可以指定房间中的某些共同性，例如通用的用户认证。 当用户从一个房间改变到另一个房间时，如果新房间在不同的社区，则用户将需要通过新社区的用户认证过程来允许访问。

    Natural language information retrieval system and method
    53.
    发明授权
    Natural language information retrieval system and method 失效
    自然语言信息检索系统及方法

    公开(公告)号：US5963940A

    公开(公告)日：1999-10-05

    申请号：US698472

    申请日：1996-08-14

    申请人： Elizabeth D. Liddy ,  Woojin Paik ,  Mary E. McKenna ,  Ming Li

    发明人： Elizabeth D. Liddy ,  Woojin Paik ,  Mary E. McKenna ,  Ming Li

    IPC分类号： G06F17/30

    CPC分类号： G06F17/30654 ,  G06F17/30707 ,  Y10S707/99935

    摘要： Techniques for generating sophisticated representations of the contents of both queries and documents in a retrieval system by using natural language processing (NLP) techniques to represent, index, and retrieve texts at the multiple levels (e.g., the morphological, lexical, syntactic, semantic, discourse, and pragmatic levels) at which humans construe meaning in writing. The user enters a query and the system processes the query to generate an alternative representation, which includes conceptual-level abstraction and representations based on complex nominals (CNs), proper nouns (PNs), single terms, text structure, and logical make-up of the query, including mandatory terms. After processing the query, the system displays query information to the user, indicating the system's interpretation and representation of the content of the query. The user is then given an opportunity to provide input, in response to which the system modifies the alternative representation of the query. Once the user has provided desired input, the possibly modified representation of the query is matched to the relevant document database, and measures of relevance generated for the documents. A set of documents is presented to the user, who is given an opportunity to select some or all of the documents, typically on the basis of such documents being of particular relevance. The user then initiates the generation of a query representation based on the alternative representations of the selected document(s).

    摘要翻译： 通过使用自然语言处理（NLP）技术在多个级别（例如，形态学，词汇，语法，语义，语义和语义）来表示，索引和检索文本，在检索系统中生成查询和文档的内容的复杂表示的技术， 话语和语用层面），人类以书面形式解释意义。 用户输入查询，系统处理查询以生成替代表示，其中包括基于复杂名词（CN），专有名词（PN），单词，文本结构和逻辑构成的概念级抽象和表示 的查询，包括强制条款。 处理查询后，系统向用户显示查询信息，指示系统对查询内容的解释和表示。 然后给用户提供提供输入的机会，响应于该系统修改查询的替代表示。 一旦用户提供了所需的输入，查询的可能修改的表示与相关文档数据库相匹配，并为文档生成相关度量。 一组文件被呈现给用户，谁被给予选择一些或所有文件的机会，通常基于这些文件特别相关。 然后，用户基于所选择的文档的替代表示来启动查询表示的生成。

    Ear muffler
    54.
    发明授权
    Ear muffler 失效
    耳塞消声器

    公开(公告)号：US5824967A

    公开(公告)日：1998-10-20

    申请号：US963123

    申请日：1997-10-28

    申请人： Jozef J. Zwislocki

    发明人： Jozef J. Zwislocki

    IPC分类号： A61F11/14 ,  A61F11/12 ,  H04R1/10 ,  H04R25/00 ,  H04R25/02

    CPC分类号： A61F11/12 ,  A61F11/08 ,  H04R1/1083

    摘要： An ear muffler device suitable for coupling to the entrance of the ear canal of a person to reduce the level of ambient noise in the ear canal. The device includes a muffler tube of appropriate dimensions sufficient to isolate the ear canal from ambient air and having an inner cross-sectional area of at least approximately 1.15 cm.sup.2 so as to substantially reduce the acoustic impedance at the entrance of the ear canal over a wide range of audible sound frequencies. A connecting tube for attachment to the ear canal is coupled to the ear muffler tube. Resilient sealing means adapted to seal the connecting tube to the ear canal are attached to the open end of the connecting tube. The device further includes means for securing it in the ear. A sound source isolated from ambient air may be attached near the end of the muffler tube.

    摘要翻译： 一种适用于耦合到人的耳道入口的耳塞消声器装置，以减少耳道中的环境噪声水平。 该装置包括适当尺寸的消声器管，其足以将耳道与环境空气隔离并且具有至少约1.15cm 2的内横截面积，以便在宽的入口处显着降低耳道入口处的声阻抗 声音频率范围。 用于附接到耳道的连接管联接到耳塞消声器管。 适于将连接管密封到耳道的弹性密封装置附接到连接管的开口端。 该装置还包括用于将其固定在耳朵中的装置。 与环境空气隔离的声源可以附着在消声器管的端部附近。

    Optical storage process
    57.
    发明授权
    Optical storage process 失效
    光存储过程

    公开(公告)号：US5691091A

    公开(公告)日：1997-11-25

    申请号：US481818

    申请日：1995-06-07

    申请人： Joseph Chaiken ,  Joseph M. Osman

    发明人： Joseph Chaiken ,  Joseph M. Osman

    IPC分类号： B41M5/26 ,  G11B7/00 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/0055 ,  G11B7/243 ,  G11B11/00

    CPC分类号： G11B7/00552 ,  G11B7/00455 ,  G11B7/243 ,  G11B2007/24306 ,  G11B2007/2432 ,  G11B7/2531 ,  G11B7/2533 ,  Y10S430/146 ,  Y10S430/163

    摘要： A data storage process which includes an erasable high speed, high density, storage medium having a transition metal oxide layer where said oxide layer is capable of undergoing an optically readable chemical change when simultaneously exposed to heat and to light of a selected wavelength. An optically readable image is formed in selected regions of the oxide layer under ambient conditions which include O.sub.2 by simultaneously exposing said layer to heat and to radiation in the blue-green or shorter wavelength spectrum. The image is erased by heating the entire medium using a furnace or by heating selected portions with IR radiation.

    摘要翻译： 一种数据存储过程，其包括具有过渡金属氧化物层的可擦除的高速度，高密度存储介质，其中所述氧化物层当同时暴露于热量和选定波长的光时能够经历光学上可读的化学变化。 在包括O2的环境条件的环境条件下，在氧化物层的选定区域中形成光学上可读的图像，同时将所述层暴露于热 - 蓝色或较短波长光谱中的辐射。 通过使用炉子加热整个介质或通过用IR辐射加热所选择的部分来擦除图像。

    Microporous carbons for fuel gas storage
    58.
    发明授权
    Microporous carbons for fuel gas storage 失效
    用于燃气储存的微孔碳

    公开(公告)号：US5614460A

    公开(公告)日：1997-03-25

    申请号：US518553

    申请日：1995-08-23

    申请人： James A. Schwarz ,  Karol Putyera ,  Teresa J. Bandosz ,  Jacek Jagiello

    发明人： James A. Schwarz ,  Karol Putyera ,  Teresa J. Bandosz ,  Jacek Jagiello

    IPC分类号： B01J20/20 ,  B01J20/02

    CPC分类号： B01J20/20

    摘要： A method of making a microporous carbon material which includes providing a precursor selected from the group consisting of crystalline salts of aromatic sulfonates and nonporous polymeric salts. Heat treatment of such precursors in the temperature range of 350.degree. to 850.degree. C. in an inert oxygen free atmosphere for a sufficient time promotes thermally induced hydrogen abstraction and rearrangement of BSUs which result in the formation of a carbonaceous microporous material having a pore size distribution in the range of about 4-15 .ANG.. The structural and storage characteristics of the microporous carbon materials are also disclosed.

    摘要翻译： 一种制备微孔碳材料的方法，其包括提供选自芳族磺酸盐和无孔聚合物盐的结晶盐的前体。 在惰性无氧气氛中在350〜850℃的温度范围内热处理这些前体足够的时间促进热诱导的氢气抽出和BSU的重新排列，这导致形成具有孔径的碳质微孔材料 分布范围在4-15 ANGSTROM。 还公开了微孔碳材料的结构和储存特性。

    Activated carbons molecularly engineered
    60.
    发明授权
    Activated carbons molecularly engineered 失效
    活性炭分子工程化

    公开(公告)号：US5385876A

    公开(公告)日：1995-01-31

    申请号：US9778

    申请日：1993-01-27

    申请人： James A. Schwarz ,  Karol Putyera ,  Jacek Jagiello ,  Teresa J. Bandosz

    发明人： James A. Schwarz ,  Karol Putyera ,  Jacek Jagiello ,  Teresa J. Bandosz

    IPC分类号： B01D71/02 ,  B01J20/12 ,  B01J20/20 ,  B01J21/16 ,  B01J32/00 ,  H01M4/86 ,  B01J20/10 ,  F17C11/00

    CPC分类号： B01J20/20 ,  Y10S502/526

    摘要： A highly microporous adsorbent material is formed as a composite of a natural or synthetic clay or clay-like mineral matrix intercalated with an active carbon. The mineral is prepared and selected to have a selected interlayer spacing between microcrystalline sheets. An organic polymeric precursor is contacted therewith to fill the matrix interstices. Then the precursor is polymerized and carbonized to yield the adsorbent material in which the carbon is intercalated into the mineral matrix. The mineral can be naturally occurring smectite or synthetic hydrotalcite.

    摘要翻译： 形成高度微孔的吸附剂材料作为嵌入活性炭的天然或合成粘土或粘土状矿物基质的复合物。 制备矿物并选择在微晶片之间具有选定的层间距。 使有机聚合物前体与其接触以填充矩阵间隙。 然后将前体聚合并碳化以产生其中碳插入矿物基质中的吸附材料。 矿物可以是天然存在的蒙皂石或合成水滑石。