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21. 发明授权

US06859652B2 Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis 有权
公开(公告)号：US06859652B2
公开(公告)日：2005-02-22
申请号：US10000799
申请日：2001-12-04
申请人： Peter D. Karabinis , Rajendra Singh
发明人： Peter D. Karabinis , Rajendra Singh
IPC分类号： H04B7/185 , H04B7/204 , H04Q7/20
CPC分类号： H04B7/18563 , H04B7/2041 , H04W16/14
摘要： A cellular communications system comprising a space based system comprising a first set of cells, and a ground based system comprising a second set of cells. The space and ground systems can optionally function substantially autonomously, with each using spectrum from at least one predetermined frequency band.

22. 发明授权

US06489309B1 Polysaccharide conjugates of biomolecules 有权
标题翻译：生物分子的多糖共轭物
公开(公告)号：US06489309B1
公开(公告)日：2002-12-03
申请号：US09314055
申请日：1999-05-18
申请人： Rajendra Singh , Harshvardhan Mehta
发明人： Rajendra Singh , Harshvardhan Mehta
IPC分类号： A01N4304
CPC分类号： C08B37/0021 , A01N43/16 , C08H1/00 , G01N33/564 , G01N2333/988
摘要： Compounds that are modified polysaccharides having pendant aldehyde functionalities are disclosed. Each of the aldehyde functionalities is attached through a linker to a position corresponding to a hydrogen atom of a different hydroxyl group of unmodified polysaccharide. Also disclosed is a method for introducing an amine-reactive functionality into a dextran. The method comprises (a) reacting the dextran with an alkylating agent having a functionality that reacts with an hydroxyl group of the dextran thereby forming an alkylated dextran wherein the alkylating agent has an olefin group and (b) treating the alkylated dextran to convert the olefin group to an amine-reactive functionality. A polysaccharide can be conjugated to a biomolecule by carrying out the above method and reacting the amine-reactive functionality with an amine functionality on the biomolecule to produce polysaccharide conjugated to the biomolecule.
摘要翻译：公开了具有侧醛官能团的改性多糖的化合物。每个醛官能团通过接头连接到对应于未修饰多糖的不同羟基的氢原子的位置。还公开了将胺反应性功能引入葡聚糖的方法。该方法包括（a）使葡聚糖与具有与葡聚糖羟基反应的官能团的烷基化剂反应，从而形成烷基化葡聚糖，其中烷基化剂具有烯烃基团，和（b）处理烷基化葡聚糖以转化烯烃与胺反应性官能团。通过进行上述方法并使胺反应性官能团与胺官能团在生物分子上反应以产生与生物分子缀合的多糖，可以将多糖与生物分子缀合。

23. 发明授权

US06403807B1 Bridged fluorescent dyes, their preparation and their use in assays 失效
标题翻译：桥联荧光染料，它们的制备及其在测定中的应用
公开(公告)号：US06403807B1
公开(公告)日：2002-06-11
申请号：US09612331
申请日：2000-07-06
申请人： Rajendra Singh , Gregory Gorski , Gary Frenzel
发明人： Rajendra Singh , Gregory Gorski , Gary Frenzel
IPC分类号： C07D40306
CPC分类号： C07D487/14 , C07D491/14 , C09B23/0008 , C09B23/0016 , C09B23/0033 , C09B23/0066 , C09B23/083 , C09B23/086
摘要： Bridged fluorescent dyes of the cyanine and squaraine families are disclosed. The dyes are useful as markers in assay techniques and offer advantages of undergoing excitation at a common wavelength but emitting at structure dependent different wavelengths.
摘要翻译：公开了花青和方酸系家族的桥接荧光染料。染料可用作测定技术中的标记物，并且具有在共同波长下进行激发但在结构依赖的不同波长下发射的优点。

24. 发明授权

US5929049A Polysaccharide conjugates of biomolecules 失效
公开(公告)号：US5929049A
公开(公告)日：1999-07-27
申请号：US907842
申请日：1997-08-08
申请人： Rajendra Singh , Harshvardhan Mehta
发明人： Rajendra Singh , Harshvardhan Mehta
IPC分类号： A01N43/16 , G01N33/564 , A01N43/04
CPC分类号： C08B37/0021 , A01N43/16 , C08H1/00 , G01N33/564 , G01N2333/988
摘要： Compounds that are modified polysaccharides having pendant aldehyde functionalities are disclosed. Each of the aldehyde functionalities is attached through a linker to a position corresponding to a hydrogen atom of a different hydroxyl group of unmodified polysaccharide. Also disclosed is a method for introducing an amine-reactive functionality into a dextran. The method comprises (a) reacting the dextran with an alkylating agent having a functionality that reacts with an hydroxyl group of the dextran thereby forming an alkylated dextran wherein the alkylating agent has an olefin group and (b) treating the alkylated dextran to convert the olefin group to an amine-reactive functionality. A polysaccharide can be conjugated to a biomolecule by carrying out the above method and reacting the amine-reactive functionality with an amine functionality on the biomolecule to produce polysaccharide conjugated to the biomolecule.

25. 发明授权

US09933525B2 Systems and methods for a terrestrial-based positioning beacon network 有权
公开(公告)号：US09933525B2
公开(公告)日：2018-04-03
申请号：US13334997
申请日：2011-12-22
申请人： Rajendra Singh
发明人： Rajendra Singh
IPC分类号： G01S19/11 , G01S1/02 , G01S5/02 , G01S19/12 , G01S19/21 , G01S19/22
CPC分类号： G01S19/11 , G01S1/02 , G01S1/042 , G01S1/08 , G01S5/0215 , G01S19/12 , G01S19/21 , G01S19/22
摘要： Terrestrial-based positioning beacon networks may include first and second terrestrial-based positioning beacons that are configured to simultaneously transmit signals to a terrestrial receiver. The first terrestrial-based positioning beacon may be configured to modify its transmissions to the terrestrial receiver in response to an identification of potential interference with the transmissions from the first terrestrial-based positioning beacon or the second terrestrial-based positioning beacon to the terrestrial receiver. Related methods, beacons, and receivers are also described.

26. 发明授权

US08938270B2 Method and system enabling use of white space radio spectrum using an out of band control channel 有权
标题翻译：使用带外控制通道的白空间无线电频谱的方法和系统
公开(公告)号：US08938270B2
公开(公告)日：2015-01-20
申请号：US13364821
申请日：2012-02-02
申请人： Rajendra Singh
发明人： Rajendra Singh
IPC分类号： H04W72/04 , H04W16/14
CPC分类号： H04W16/14 , H04W4/021
摘要： A system (10) and method (50) of dynamic allocation of spectrum for a communication device involves receiving (51) a user channel map (UCM) on a control channel that is outside the band of interest. The UCM can include at least boundary location information for one or more channel resources. The method can determine (52) at least an approximate location for the communication device, compare (56) the approximate location with the boundary location information, and determine (57) which channels can avoid co-channel and adjacent channel interference with licensed users and other unlicensed users based on the comparison. The method can relax communication parameters for the one or more channel resources if no licensed user signals are found in the user channel map, and tightening the communication parameters if co-channel, adjacent channel, or other interference generating channel use is found within the user channel map.
摘要翻译：用于通信设备的频谱的动态分配的系统（10）和方法（50）涉及在感兴趣的频带外的控制信道上接收（51）用户信道映射（UCM）。 UCM可以至少包括用于一个或多个信道资源的边界位置信息。该方法可以确定（52）通信设备的至少一个近似位置，比较（56）近似位置与边界位置信息，并确定（57）哪些信道可以避免与许可用户的同信道和相邻信道干扰，其他未经许可的用户根据比较。如果在用户频道映射中没有发现许可的用户信号，则该方法可以放宽一个或多个信道资源的通信参数，并且如果在用户频道内找到共信道，相邻信道或其他干扰生成信道使用，则收紧通信参数频道地图

27. 发明授权

US08369775B2 Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis 有权
标题翻译：使用信号衰减和/或阻塞，频率和/或滞后的动态分配的卫星地面频率重用的集成或自主系统和方法
公开(公告)号：US08369775B2
公开(公告)日：2013-02-05
申请号：US12549548
申请日：2009-08-28
申请人： Peter D. Karabinis , Rajendra Singh
发明人： Peter D. Karabinis , Rajendra Singh
IPC分类号： H04B7/185
CPC分类号： H04B7/18563 , H04B7/2041 , H04W16/14
摘要： A signal strength that is associated with a first wireless communications channel is detected. Electromagnetic energy is transmitted over the first wireless communications channel in response to the signal strength being sufficiently weak. A determination is made whether a handoff should be made to a second wireless communications channel having a signal that is weaker than a signal of the first wireless communications channel. Related systems and methods are described.
摘要翻译：检测与第一无线通信信道相关联的信号强度。响应于信号强度足够弱，电磁能量在第一无线通信信道上传输。确定是否应该对具有比第一无线通信信道的信号弱的信号的第二无线通信信道进行越区切换。描述相关系统和方法。

28. 发明授权

US08248959B2 Methods, apparatus and computer program products for beacon generation and processing in an OFDM communications system 有权
标题翻译：用于OFDM通信系统中的信标生成和处理的方法，装置和计算机程序产品
公开(公告)号：US08248959B2
公开(公告)日：2012-08-21
申请号：US11754590
申请日：2007-05-29
申请人： George Ronald Olexa , Rajendra Singh
发明人： George Ronald Olexa , Rajendra Singh
IPC分类号： H04L12/26
CPC分类号： H04W52/04 , G01S5/0205 , H04L27/261 , H04W64/00 , H04W64/006
摘要： An enhanced-range beacon signal transmitted from a wireless terminal in a frequency band used by the wireless OFDM communications system for OFDM communications. The beacon may be received at each of a plurality of base stations of the wireless OFDM communications system. A location of the wireless terminal may be determined responsive to reception of the beacon signal at the plurality of base stations. In some embodiments, the beacon signal includes a narrowband beacon signal, which may be centered at a frequency offset with respect to a set of subcarriers used in the wireless OFDM communications system, for example, between adjacent subcarriers of the wireless OFDM system and/or in a guard band of the OFDM frequency band.
摘要翻译：在无线OFDM通信系统使用的用于OFDM通信的频带中从无线终端发送的增强范围信标信号。可以在无线OFDM通信系统的多个基站中的每一个处接收信标。可以响应于在多个基站处的信标信号的接收来确定无线终端的位置。在一些实施例中，信标信号包括窄带信标信号，其可以相对于在无线OFDM通信系统中使用的一组子载波（例如在无线OFDM系统的相邻子载波之间）和/或在OFDM频带的保护频带中。

29. 发明申请

US20120202510A1 METHOD AND SYSTEM ENABLING USE OF WHITE SPACE RADIO SPECTRUM USING DIGITAL BROADCAST SIGNALS 有权
标题翻译：使用数字广播信号的白天空间频谱的方法和系统
公开(公告)号：US20120202510A1
公开(公告)日：2012-08-09
申请号：US13438429
申请日：2012-04-03
申请人： Rajendra Singh
发明人： Rajendra Singh
IPC分类号： H04W72/04
CPC分类号： H04W4/20 , G01S19/14 , H04W4/02 , H04W16/14 , H04W52/16 , H04W52/245 , H04W52/367 , H04W64/00 , H04W72/0453
摘要： A system (10) and method (50 or 70) of dynamic allocation of spectrum for a communication device where a UHF band is currently unused for licensed television broadcasting involves determining (51) a location of a user device, determining (52) which UHF television broadcast channels are available for use by the user device and determining (53) a maximum allowed transmission power for a given channel based on signal strength for the given channel and on adjacent channels before transmitting (54) the maximum allowed transmission power and location by the user device to a remote server. The method can receive (55) polygon endpoints from a television broadcast defining the location of usable reception of the television broadcast.
摘要翻译：用于通信设备的频谱的动态分配的系统（10）和方法（50或70），其中UHF频带当前未被许可的电视广播包括确定（51）用户设备的位置，确定（52）哪个UHF 电视广播频道可由用户设备使用，并基于给定频道的信号强度和相邻信道确定（53）给定频道的最大允许传输功率，在发送（54）最大允许传输功率和位置之前用户设备到远程服务器。该方法可以从定义电视广播的可用接收位置的电视广播接收（55）多边形端点。

30. 发明申请

US20120034944A1 WIRELESS COMMUNICATIONS APPARATUS AND METHODS EMPLOYING OPPORTUNISTIC FREQUENCY BAND USE 审中-公开
标题翻译：无线通信装置和使用机会频带使用的方法
公开(公告)号：US20120034944A1
公开(公告)日：2012-02-09
申请号：US13273672
申请日：2011-10-14
申请人： George Ronald Olexa , Rajendra Singh
发明人： George Ronald Olexa , Rajendra Singh
IPC分类号： H04W72/04
CPC分类号： H04W72/085 , H04B7/12 , H04W52/42
摘要： A base station selectively communicates with terminals using first and second separately allocated frequency bands, e.g., separate cellular/PCS bands, of a government spectrum allocation based on propagation conditions between the base station and the terminals. The base station may transmit in the first frequency band and receive in the second frequency band during a first time slot and transmit in the second frequency band and receive in the first frequency band during a second time slot. The base station may transmit to a terminal in the first frequency band while receiving from the terminal in the second frequency band during the first time slot and may transmit to the first terminal in the second frequency band while receiving from the first terminal in the first frequency band during the second time slot.
摘要翻译：基站基于基站和终端之间的传播条件，选择性地使用第一和第二分开分配的频带（例如单独的蜂窝/ PCS频带）与政府频谱分配进行通信。基站可以在第一频带中进行发送，并且在第一时隙期间在第二频带中接收并在第二频带中进行发射，并且在第二时隙期间在第一频带中接收。基站可以在第一时隙期间从第二频带中的终端接收到第一频带中的终端，并且可以在第一频率从第一终端接收时向第二频带中的第一终端发送在第二时隙期间。

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