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    • 3. 发明授权
    • High power rectifier
    • 大功率整流器
    • US06252258B1
    • 2001-06-26
    • US09371740
    • 1999-08-10
    • Hsueh-Rong ChangRajesh Gupta
    • Hsueh-Rong ChangRajesh Gupta
    • H01L31111
    • H01L29/0623H01L29/0692H01L29/872H01L29/8725
    • A high power rectifier device has an − drift layer on an N+ layer. A number of trench structures are recessed into the drift layer opposite the N+ layer; respective mesa regions separate each pair of trenches. Each trench structure includes oxide side-walls and an oxide bottom, and is filled with a conductive material. A metal layer contacts the trench structures and mesa regions, forming Schottky contacts at the metal-mesa interface. Shallow P regions extend from the bottom of each trench into the drift layer. Forward conduction occurs when the Schottky contact's barrier height is overcome. When reversed-biased, depletion regions form around the shallow P regions and the oxide side-walls which provide potential barriers across the mesa regions that shield the Schottky contacts from high electric fields, providing a high reverse blocking voltage and reducing reverse leakage current. The device's unipolar structure provides low switching losses, enabling high switching speeds while reducing the power that must be dissipated when transitioning from forward conduction to reverse blocking mode.
    • 大功率整流器件在N +层上具有漂移层。 多个沟槽结构凹陷到与N +层相反的漂移层中; 相应的台面区域分隔每对沟槽。 每个沟槽结构包括氧化物侧壁和氧化物底部,并且填充有导电材料。 金属层接触沟槽结构和台面区域,在金属 - 台面界面处形成肖特基接触。 浅P区域从每个沟槽的底部延伸到漂移层。 当肖特基接触的屏障高度被克服时,会发生正向传导。 当反向偏置时,在浅的P区和氧化物侧壁周围形成耗尽区,这些侧壁在屏蔽肖特基接触的高电场的台面区域之间提供势垒,提供高的反向阻断电压并减少反向漏电流。 器件的单极结构提供低开关损耗,实现高开关速度,同时降低从正向导通转换为反向阻塞模式时必须消耗的功率。
    • 4. 发明授权
    • Network traffic routing
    • 网络流量路由
    • US08224943B2
    • 2012-07-17
    • US12058593
    • 2008-03-28
    • Matt OckoGeorge TumaManish KaliaSandeep SukhijaJohn PurrierRajesh GuptaDeepak KhajuriaSaumitra Das
    • Matt OckoGeorge TumaManish KaliaSandeep SukhijaJohn PurrierRajesh GuptaDeepak KhajuriaSaumitra Das
    • G06F15/173
    • G06F11/2023H04L67/14H04L67/2819H04L67/2861H04L67/327H04L69/40
    • A service appliance is installed between production servers running service applications and service users. The production servers and their service applications provide services to the service users. In the event that a production server is unable to provide its service to users, the service appliance can transparently intervene to maintain service availability. To maintain transparency to service users and service applications, service users are located on a first network and production servers are located on a second network. The service appliance assumes the addresses of the service users on the second network and the addresses of the production servers on the first network. Thus, the service appliance obtains all network traffic sent between the production server and service users. While the service application is operating correctly, the service appliance forwards network traffic between the two networks using various network layers.
    • 服务设备安装在运行服务应用程序的生产服务器和服务用户之间。 生产服务器及其服务应用程序向服务用户提供服务。 如果生产服务器无法向用户提供服务,则服务设备可以透明地介入以维护服务可用性。 为了保持服务用户和服务应用程序的透明度,服务用户位于第一个网络上,生产服务器位于第二个网络上。 服务设备假定第二个网络上的服务用户的地址以及第一个网络上的生产服务器的地址。 因此,服务设备获取在生产服务器和服务用户之间发送的所有网络流量。 当服务应用程序正常运行时,服务设备使用各种网络层在两个网络之间转发网络流量。
    • 5. 发明申请
    • Pretreatment of Ligno-Cellulosic Biomass with Sulfonation
    • 用磺化预处理木质纤维素生物质
    • US20110124056A1
    • 2011-05-26
    • US12894042
    • 2010-09-29
    • Benjamin LevieRajesh GuptaJohnway GaoDwight Anderson
    • Benjamin LevieRajesh GuptaJohnway GaoDwight Anderson
    • C12P19/04C12P19/02C13K1/02
    • C13K1/02C12P19/02C12P19/14C12P2201/00D21C3/06D21C11/0007
    • Provided are methods for the pretreatment of ligno-cellulosic biomass such as softwoods with bisulfite such as ammonium bisulfite without the need for exogenous acid. In one variation, a method of pretreating ligno-cellulosic biomass is provided including the following steps: a) providing ligno-cellulosic biomass; b) contacting the ligno-cellulosic biomass with a solution comprising bisulfite at an amount between 1 and 10% of a dry weight of the ligno-cellulosic biomass to form a slurry; c) heating the slurry to a first temperature of 150-210° C. for a first period of time to form a first mixture; d) cooling the first mixture to a second temperature of 100-200° C. to form a second mixture; and e) maintaining the second mixture at the second temperature for a second period of time to form pretreated ligno-cellulosic biomass; wherein the first temperature is higher than the second temperature.
    • 提供了用于预处理木质纤维素生物质的方法,例如具有亚硫酸氢盐的软木,例如亚硫酸氢铵,而不需要外源性酸。 在一个实施方案中,提供了一种预处理木质纤维素生物质的方法,包括以下步骤:a)提供木质纤维素生物质; b)使木质纤维素生物质与包含亚硫酸氢盐的溶液接触,其量为木质纤维素生物质的干重的1至10%,以形成浆料; c)将所述浆料加热至第一温度为150-210℃,持续第一时间以形成第一混合物; d)将第一混合物冷却至100-200℃的第二温度以形成第二混合物; 和e)将所述第二混合物保持在所述第二温度第二时间段以形成预处理的木质纤维素生物质; 其中所述第一温度高于所述第二温度。
    • 6. 发明申请
    • Transparent service provider
    • 透明服务提供商
    • US20060015764A1
    • 2006-01-19
    • US11166334
    • 2005-06-24
    • Matt OckoGeorge TumaManish KaliaSandeep SukhijaJohn PurrierRajesh GuptaSaumitra Das
    • Matt OckoGeorge TumaManish KaliaSandeep SukhijaJohn PurrierRajesh GuptaSaumitra Das
    • G06F11/00
    • G06F11/2028G06F11/2097
    • A service appliance is installed between production servers running service applications and service users. The production servers and their service applications provide services to the service users. The service appliance replicates the service data of service applications and monitors the service application. If the service appliance detects that the service application has failed or is about to fail, the service appliance takes control of the service. Using the replica of the service data, the service appliance responds to service users in essentially the same manner as a fully operational service application and production server and updates its replica of the service data as needed. When the service appliance detects that the service application has resumed functioning, the service appliance automatically synchronizes the data of the service application of the production server with the service appliance's data and returns control of the service to the service application and its production server.
    • 服务设备安装在运行服务应用程序的生产服务器和服务用户之间。 生产服务器及其服务应用程序向服务用户提供服务。 服务设备复制服务应用程序的服务数据并监视服务应用程序。 如果服务设备检测到服务应用程序发生故障或即将发生故障,则服务设备将对该服务进行控制。 使用服务数据的副本,服务设备以与完全可操作的服务应用程序和生产服务器基本相同的方式响应服务用户,并根据需要更新服务数据的副本。 当服务设备检测到服务应用程序恢复运行时,服务设备将生产服务器的服务应用程序的数据与服务设备的数据自动同步,并将该服务的控制权返回给服务应用程序及其生产服务器。
    • 9. 发明授权
    • Apparatus for generating computer clock pulses
    • 用于产生计算机时钟脉冲的装置
    • US4985640A
    • 1991-01-15
    • US472598
    • 1990-04-04
    • Edward GrochowskiRajesh Gupta
    • Edward GrochowskiRajesh Gupta
    • H03K5/15H03K5/151
    • H03K5/151H03K5/15006
    • A circuit for generating a pair of clock pulses of opposite phases each having the same frequency as the frequency of an input signal generated by a crystal oscillator including apparatus for generating first and second pair of signals at half the frequency of the input signal generated by a crystal oscillator, the signals of each pair being of opposite phase to one another; apparatus for comparing a first signal of the first pair signals with the one of the signals of the second pair of signals which is normally out of phase therewith to produce an output signal only when the two signals are in phase; apparatus for comparing the second signal of the first pair of signals with the one of the signals of the second pair of signals which is normally out of phase therewith to produce an output signal only when the two signals are in phase; apparatus utilizing one of the output signals to lengthen the duty cycle of one of the first pair of signals of opposite phases and the other of the output signals to shorten the duty cycle of the other of the first pair of signals of opposite phases; apparatus for producing a pair of clock pulses of opposite phases each having the same frequency as the frequency of an input signal generated by a crystal oscillator; and apparatus responsive to the apparatus utilizing one of the output signals to lengthen the duty cycle of one of the first pair signals of opposite phases and the other of the output signals to shorten the duty cycle of the other of the first pair of signals of opposite phases for equalizing the duty cycle of the pair of closk pulses of opposite phases each having the same frequency as the frequency of an input signal generated by a crystal oscillator.
    • 一种用于产生相对相位的一对时钟脉冲的电路,每个时钟脉冲具有与由晶体振荡器产生的输入信号的频率相同的频率,该晶体振荡器包括用于产生第一和第二对信号的信号,所述第一和第二对信号的频率为由 晶体振荡器,每对信号彼此相反; 用于将第一对信号的第一信号与通常与其相异相的第二对信号的信号之一进行比较以仅在两个信号同相时产生输出信号的装置; 用于将第一对信号的第二信号与通常与其相异相的第二对信号的信号之一进行比较以仅在两个信号同相时产生输出信号的装置; 利用所述输出信号之一来延长所述第一对相对相位信号中的一个的占空比以及所述输出信号中的另一个的占空比,以缩短所述第一对相对相位信号中另一个的占空比; 用于产生具有与由晶体振荡器产生的输入信号的频率相同频率的相反相位的一对时钟脉冲的装置; 以及响应于所述装置的设备,利用所述输出信号之一来延长所述第一对相对相位信号之一的占空比,并且输出信号中的另一个信号的占空比,以缩短所述第一对信号中另一个的相反的占空比 用于均衡相位相对的一对闭合脉冲的占空比的相位,每个相位相位的频率与由晶体振荡器产生的输入信号的频率相同。
    • 10. 发明授权
    • Computer apparatus and method for performing financial transaction processing
    • 用于执行金融交易处理的计算机装置和方法
    • US07761355B2
    • 2010-07-20
    • US11750535
    • 2007-05-18
    • Guy MallonAnna Lisa TazartesDavid JamesKunal MalaniDonata CalefatoRajesh Gupta
    • Guy MallonAnna Lisa TazartesDavid JamesKunal MalaniDonata CalefatoRajesh Gupta
    • G06Q40/00G07B17/00
    • G06Q20/04G06Q40/00G06Q40/02G06Q40/025G06Q40/08G06Q40/12
    • A computer apparatus for performing financial transaction processing on a plurality of accounts is disclosed. The computer apparatus comprises a data storage device having a plurality of account files, each account file storing data relating to a particular account; a data processor for processing data relating to the account files; an input for receiving data relating to the account files and an output for outputting data relating to the account files. The input is arranged to receive data relating to debits and credits for particular account files which are processed by the data processor and stored in the corresponding account files on the data storage device. The data processor is arranged such that an account holder may have the file for their account on the data storage device marked with an indicator for activation of assistance when the account holder for that particular account file has committed expenditure which is greater than income.
    • 公开了一种用于在多个帐户上执行金融交易处理的计算机装置。 计算机装置包括具有多个帐户文件的数据存储装置,每个帐户文件存储与特定帐户有关的数据; 用于处理与所述帐户文件有关的数据的数据处理器; 用于接收与所述帐户文件有关的数据的输入和用于输出与所述帐户文件有关的数据的输出。 输入被设置为接收与由数据处理器处理并存储在数据存储设备上的相应帐户文件中的特定帐户文件的借方和贷方相关的数据。 数据处理器被布置成使得当该特定帐户文件的账户持有者承担大于收入的支出时,帐户持有者可以在标记有用于激活援助的指示符的数据存储设备上具有用于其帐户的文件。