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1. 发明授权

US08923508B2 Half-duplex speakerphone echo canceler 有权
标题翻译：半双工扬声器回声消除器
公开(公告)号：US08923508B2
公开(公告)日：2014-12-30
申请号：US13490596
申请日：2012-06-07
申请人： Donald R. Laturell , Kannan Srinivasan , Chao-pin Chen
发明人： Donald R. Laturell , Kannan Srinivasan , Chao-pin Chen
IPC分类号： H04M9/08
CPC分类号： H04M9/082
摘要： A speakerphone having transmit path with a microphone and a first amplifier having a gain determined by a controller and an input coupled to the microphone, a receive path with a second amplifier having a gain determined by the controller and a speaker coupled to an output of the second amplifier, and operable in a half-duplex mode using an adaptive echo canceller to at least partially remove from the transmit path acoustically-coupled signals from the receive path. The controller increases the gain of the first amplifier and decreases the gain of the second amplifier when a level of signals in the transmit path exceed a level of signals in the receive path, and decreases the gain of the first amplifier and increases the gain of the second amplifier when the level of signals in the receive path exceed the level of signals in the transmit path.
摘要翻译：具有麦克风的发送路径的扬声器和具有由控制器确定的增益和耦合到麦克风的输入的第一放大器，具有由控制器确定的增益的第二放大器的接收路径和耦合到该麦克风的输出的扬声器第二放大器，并且可以使用自适应回波消除器以半双工模式操作以至少部分地从发送路径去除来自接收路径的声耦合信号。当发射路径中的信号电平超过接收路径中的信号电平时，控制器增加第一放大器的增益并降低第二放大器的增益，并且降低第一放大器的增益并增加第第二放大器当接收路径中的信号电平超过发送路径中的信号电平时。

2. 发明申请

US20130329882A1 Half-Duplex Speakerphone Echo Canceler 有权
标题翻译：半双工免提回声消除器
公开(公告)号：US20130329882A1
公开(公告)日：2013-12-12
申请号：US13490596
申请日：2012-06-07
申请人： Donald R. Laturell , Kannan Srinivasan , Chao-pin Chin
发明人： Donald R. Laturell , Kannan Srinivasan , Chao-pin Chin
IPC分类号： H04M9/08
CPC分类号： H04M9/082
摘要： A speakerphone having transmit path with a microphone and a first amplifier having a gain determined by a controller and an input coupled to the microphone, a receive path with a second amplifier having a gain determined by the controller and a speaker coupled to an output of the second amplifier, and operable in a half-duplex mode using an adaptive echo canceller to at least partially remove from the transmit path acoustically-coupled signals from the receive path. The controller increases the gain of the first amplifier and decreases the gain of the second amplifier when a level of signals in the transmit path exceed a level of signals in the receive path, and decreases the gain of the first amplifier and increases the gain of the second amplifier when the level of signals in the receive path exceed the level of signals in the transmit path.
摘要翻译：具有麦克风的发送路径的扬声器和具有由控制器确定的增益和耦合到麦克风的输入的第一放大器，具有由控制器确定的增益的第二放大器的接收路径和耦合到该麦克风的输出的扬声器第二放大器，并且可以使用自适应回波消除器以半双工模式操作以至少部分地从发送路径去除来自接收路径的声耦合信号。当发射路径中的信号电平超过接收路径中的信号电平时，控制器增加第一放大器的增益并降低第二放大器的增益，并且降低第一放大器的增益并增加第第二放大器当接收路径中的信号电平超过发送路径中的信号电平时。

3. 发明授权

US08507292B2 Sample pretreatment and extraction 有权
公开(公告)号：US08507292B2
公开(公告)日：2013-08-13
申请号：US13175699
申请日：2011-07-01
申请人： Kannan Srinivasan , Bruce Richter , Christopher A. Pohl , Brett Murphy , Brian Dorich , S. M. Rahmat Ullah
发明人： Kannan Srinivasan , Bruce Richter , Christopher A. Pohl , Brett Murphy , Brian Dorich , S. M. Rahmat Ullah
IPC分类号： G01N1/18
CPC分类号： G01N1/34 , B01D11/0492 , B01J20/043 , B01J20/10 , B01J20/14 , B01J20/26 , B01J20/3236 , B01J2220/46 , B01J2220/66 , G01N1/4022 , G01N1/4044 , G01N1/405 , G01N30/7206 , G01N30/96 , G01N2001/4061 , Y10T436/10 , Y10T436/255
摘要： A method for pretreating and extracting a liquid sample by sorbing an aqueous liquid sample, including an organic analyte and an acid or a base, in a solid sorbent material, and at least partially neutralizing the acid or base by reaction with neutralizing ions retained on a support surface, and contacting the liquid sample-sorbed sorbent material at elevated temperature and pressure with an organic solvent to extract the analyte into said solvent, preferably in a vessel having an extraction chamber with a zirconium metal interior surface.

4. 发明申请

US20130073379A1 METHOD AND APPARATUS FOR INTERNET CUSTOMER RETENTION 审中-公开
标题翻译：互联网客户保留的方法和设备
公开(公告)号：US20130073379A1
公开(公告)日：2013-03-21
申请号：US13617581
申请日：2012-09-14
申请人： Kannan Srinivasan , Michael I. Shamos
发明人： Kannan Srinivasan , Michael I. Shamos
IPC分类号： G06Q30/02
CPC分类号： G06Q30/02 , G06Q30/0204 , G06Q30/0211 , G06Q30/0222 , G06Q30/0253 , G06Q30/0254 , G06Q30/0269
摘要： A method of dynamically optimizing customer retention for a web marketing site is provided. That method includes specifying a permissible defunct threshold, specifying a range of offers to be included in a set of promotions, determining a probability that a customer will become defunct in a predetermined period of time since the last interaction of that customer with the web site, and providing a promotion to a customer if the probability that the customer will become defunct in the predetermined period of time since the last interaction of that customer with the web site is greater than a predetermined threshold.
摘要翻译：提供了一种动态优化网络营销网站的客户保留的方法。该方法包括指定允许的停止阈值，指定要包括在一组促销中的提议的范围，确定客户自该客户与该网站的最后一次交互之后的预定时间段内将变为停止的概率，并且如果客户在该客户与网站的最后一次交互之后的预定时间段内将成为停止的概率大于预定阈值，则向客户提供促销。

5. 发明申请

US20110210055A1 HIGH CAPACITY ION CHROMATOGRAPHY STATIONARY PHASES AND METHOD OF FORMING 有权
标题翻译：高容量离子色谱固定相和形成方法
公开(公告)号：US20110210055A1
公开(公告)日：2011-09-01
申请号：US12714253
申请日：2010-02-26
申请人： Kannan Srinivasan , Christopher A. Pohl , Sheetal Bhardwaj , Rong Lin
发明人： Kannan Srinivasan , Christopher A. Pohl , Sheetal Bhardwaj , Rong Lin
IPC分类号： C08J5/20 , B01J41/12 , B01D15/08
CPC分类号： B01D15/36 , B01D15/361 , B01J39/17 , B01J39/19 , B01J39/26 , B01J41/04 , B01J41/13 , B01J41/20 , B01J47/00
摘要： The present invention provides a new design for high capacity stationary phases for chromatography, for example, ion chromatography. The stationary phases include a first polymer layer in contact with and at least partially coating the substrate of the stationary phase. The first polymer layer serves as a foundation for the attachment, and in various embodiments, the growth and attachment, of a highly hyperbranched polymer structure, typically based on one or more products of condensation polymerization. Multiple components are of use in forming the first polymer layer and the hyperbranched polymer structure, thereby providing a stationary phase that can be engineered to have a desired property such as ion capacity, ion selectivity, and the like. Exemplary condensation polymers are formed by the reaction of at least one polyfunctional compound with at least one compound of complimentary reactivity, e.g., a nucleophilic polyfunctional compound reacting with an electrophilic compound.
摘要翻译：本发明提供了用于色谱法的高容量固定相的新设计，例如离子色谱法。固定相包括与固定相的基底接触并且至少部分地涂覆固定相的基底的第一聚合物层。第一聚合物层用作连接的基础，并且在各种实施方案中，通常基于一个或多个缩聚产物的高度超支化的聚合物结构的生长和附着。多个组分可用于形成第一聚合物层和超支化聚合物结构，从而提供可被工程化以具有所需性质如离子容量，离子选择性等的固定相。示例性缩合聚合物通过至少一种多官能化合物与至少一种互补反应性化合物的反应形成，例如与亲电子化合物反应的亲核多官能化合物。

6. 发明申请

US20100139376A1 IC SYSTEM INCLUDING SAMPLE PRETREATMENT AND USING A SINGLE PUMP 有权
标题翻译： IC系统，包括样品预处理和使用单泵
公开(公告)号：US20100139376A1
公开(公告)日：2010-06-10
申请号：US12702880
申请日：2010-02-09
申请人： Kannan Srinivasan , Rong Lin
发明人： Kannan Srinivasan , Rong Lin
IPC分类号： G01N30/28
CPC分类号： G01N30/96 , G01N2030/085
摘要： An IC system including sample preparation. The system includes a liquid sample injection loop, an ion concentrator, an ion separator, and only a single pump for pumping fluid through the system.
摘要翻译：包括样品制备的IC系统。该系统包括液体样品注射回路，离子浓缩器，离子分离器，以及仅用于泵送流体通过系统的单个泵。

7. 发明授权

US07618535B2 Suppressed chromatography and salt conversion system 有权
公开(公告)号：US07618535B2
公开(公告)日：2009-11-17
申请号：US10833458
申请日：2004-04-27
申请人： Kannan Srinivasan , Sheetal Saini , Nebojsa Avdalovic
发明人： Kannan Srinivasan , Sheetal Saini , Nebojsa Avdalovic
IPC分类号： B01D15/08 , G01N33/86
CPC分类号： G01N30/96 , G01N2030/965 , G01N30/02 , B01D15/361
摘要： Method and apparatus for suppressed ion analysis in which a sample solution of analyte (e.g., anion) in an eluent of electrolyte counterions (e.g., sodium), is chromatographically separated. Then, the counterions are suppressed in a suppression zone and removed and used to convert the analyte ions to salt form in a salt-converting zone. The suppression and salt-converting zones may be contiguous or remote, and may be performed in devices of the membrane suppresser type. Thereafter, the salts or acids or bases formed from them (e.g., in membrane suppressor devices) are detected. Also, salt conversion can be performed using two ion exchange packed bed salt convertors in which one bed is on-line while the other is regenerated, followed by a reversal of flow.

8. 发明申请

US20090218238A1 ION DETECTOR AND SYSTEM 有权
标题翻译：离子检测器和系统
公开(公告)号：US20090218238A1
公开(公告)日：2009-09-03
申请号：US12039695
申请日：2008-02-28
申请人： Purnendu K. Dasgupta , Bingcheng Yang , Kannan Srinivasan
发明人： Purnendu K. Dasgupta , Bingcheng Yang , Kannan Srinivasan
IPC分类号： G01N27/26
CPC分类号： G01N30/96 , G01N30/64 , Y02E60/366
摘要： Apparatus and method for detecting current or potential generated in a liquid sample suitable for use in a chromatography or other liquid sample analytical system. One embodiment is an electrolytic ion transfer device with a signal detector in communication with the electrodes of the transfer device. Another is a combination ion transfer device/electrolyte generator. Another substitutes a detector for the ion transfer device in the combination.
摘要翻译：用于检测适用于色谱法或其他液体样品分析系统的液体样品中产生的电流或电位的装置和方法。一个实施例是具有与传送装置的电极连通的信号检测器的电解离子传递装置。另一种是离子转移装置/电解质发生器的组合。另外用组合的方式代替离子转移装置的检测器。

9. 发明申请

US20090211979A1 Ion chromatography system with eluent recycle 有权
标题翻译：离子色谱系统，洗脱液回收
公开(公告)号：US20090211979A1
公开(公告)日：2009-08-27
申请号：US12036544
申请日：2008-02-25
申请人： Kannan Srinivasan , Rong Lin , Sheetal Bhardwaj , Christopher A. Pohl
发明人： Kannan Srinivasan , Rong Lin , Sheetal Bhardwaj , Christopher A. Pohl
IPC分类号： B01D15/08
CPC分类号： G01N30/96
摘要： Ion chromatography apparatus including (a) a chromatographic column, (b) a source of an aqueous eluent liquid stream, (c) a detector, (d) a recycle line between the detector and the chromatographic column, and (e) a purifying device disposed along the recycle line including ion exchange removal medium. Also, such apparatus with an electrolytic purifying device disposed along the recycle line. Also, methods of using such apparatus.
摘要翻译：离子色谱装置包括（a）色谱柱，（b）洗脱液液相流源，（c）检测器，（d）检测器和色谱柱之间的再循环管线，和（e）净化装置沿着包括离子交换去除介质的再循环管线设置。此外，这种具有沿着再循环线设置的电解净化装置的装置。另外，使用这种装置的方法。

10. 发明申请

US20060037911A1 Membrane based volatile component-removal devices for liquid chromatography 有权
标题翻译：用于液相色谱的膜基挥发性成分去除装置
公开(公告)号：US20060037911A1
公开(公告)日：2006-02-23
申请号：US10924236
申请日：2004-08-23
申请人： Purnendu Dasgupta , S. Ullah , Kannan Srinivasan
发明人： Purnendu Dasgupta , S. Ullah , Kannan Srinivasan
IPC分类号： B01D15/08
CPC分类号： G01N30/96 , B01D19/0031 , G01N30/34 , G01N2030/8423
摘要： In a liquid chromatographic system, removing at least part of a volatile component from the liquid sample stream after separation by flowing it through a volatile component-removal device including a porous wall having a surface coating of a permeable polymer less than 10 μm thick. A liquid chromatographic system suitable for performing the method. Also, a liquid chromatographic system in which volatile component is removed prior to separation across the same type of membrane or across a membrane made of a copolymer of perfluoro-2,2-dimethyl-1,3-dioxole.
摘要翻译：在液相色谱系统中，通过将分离后的液体样品流中的挥发性成分的至少一部分流过挥发性成分除去装置，该挥发性成分除去装置包括具有小于10μm厚的可渗透聚合物的表面涂层的多孔壁。适用于执行该方法的液相色谱系统。另外，其中挥发性组分在分离过相同类型的膜之前或通过由全氟-2,2-二甲基-1,3-二氧杂环戊烯的共聚物制成的膜上除去的液相色谱系统。

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