公开(公告)号：US5530398A

公开(公告)日：1996-06-25

申请号：US226126

申请日：1994-04-11

申请人： Daryush Shamlou ,  Edward MacRobbie ,  Rajiv Gupta ,  Raouf Halim

发明人： Daryush Shamlou ,  Edward MacRobbie ,  Rajiv Gupta ,  Raouf Halim

IPC分类号： G05F1/56 ,  H02M3/07 ,  H03L5/00

CPC分类号： H02M3/07

摘要： A circuit for converting a system supply voltage having one of two levels to a voltage for use by an integrated analog circuit connected to the system upon power-up. The circuit uses a diode-connected transistor to generate a reference voltage necessary for a regulator to regulate the supply voltage when the supply voltage is first powered up. The regulated supply voltage is doubled to a voltage level sufficient to activate the integrated analog circuit's bandgap voltage. The activated bandgap voltage is thus switched on to supply a more precise reference voltage to the regulator so that the diode-connected transistor may be de-activated to conserve power. The circuit also provides a bypass path for connecting the supply voltage directly to the integrated analog circuit when the supply voltage is the same level as the necessary voltage for the integrated analog circuit.

摘要翻译： 用于将具有两个电平中的一个的系统电源电压转换为在通电时连接到系统的集成模拟电路使用的电压的电路。 该电路使用二极管连接的晶体管，以在电源电压第一次通电时产生调节器调节电源电压所需的参考电压。 调节的电源电压加倍到足以激活集成模拟电路的带隙电压的电压电平。 因此，激活的带隙电压被接通以向调节器提供更精确的参考电压，使得二极管连接的晶体管可以被去激活以节省功率。 当电源电压与集成模拟电路的必要电压相同时，该电路还提供一个旁路通路，用于将电源电压直接连接到集成模拟电路。

公开(公告)号：US5532576A

公开(公告)日：1996-07-02

申请号：US226197

申请日：1994-04-11

申请人： Edward MacRobbie ,  Daryush Shamlou ,  Rajiv Gupta ,  Raouf Halim

发明人： Edward MacRobbie ,  Daryush Shamlou ,  Rajiv Gupta ,  Raouf Halim

IPC分类号： G06F1/26 ,  G05F1/56 ,  G05F3/30 ,  H02M3/07 ,  G05F1/575

CPC分类号： H02M3/07 ,  Y10S323/901

摘要： An on-board regulated voltage up-convertor for converting a first DC voltage at a first node from an electronic system to a second DC voltage for an integrated device at a second node. The convertor comprises reference generator means for generating a predetermined reference voltage at start-up, voltage regulator means coupled to said first node for regulating said first voltage at a predetermined voltage at a third node, voltage multiplier means coupled to said third node and to said second node for multiplying said predetermined voltage to generate an output voltage substantially equal to said second voltage, feedback means coupled to said second node for feeding said output voltage back to said voltage regulator means to adjust the level of said predetermined voltage at said third node according to how said output voltage is relative to said second voltage.

摘要翻译： 一种车载调节电压上变频器，用于将第一节点处的第一直流电压从电子系统转换为第二节点处的集成装置的第二直流电压。 转换器包括用于在启动时产生预定参考电压的参考发生器装置，耦合到所述第一节点的电压调节器装置，用于在第三节点处以预定电压调节所述第一电压，耦合到所述第三节点的电压倍增器装置和所述第 第二节点，用于乘以所述预定电压以产生基本上等于所述第二电压的输出电压，耦合到所述第二节点的反馈装置，用于将所述输出电压馈送回所述电压调节器装置，以根据所述第三节点调整所述预定电压的电平， 所述输出电压如何相对于所述第二电压。

公开(公告)号：US5514951A

公开(公告)日：1996-05-07

申请号：US226198

申请日：1994-04-11

申请人： Raouf Halim ,  Rajiv Gupta ,  Daryush Shamlou

发明人： Raouf Halim ,  Rajiv Gupta ,  Daryush Shamlou

IPC分类号： G06F1/26 ,  G05F1/56 ,  G05F3/30 ,  H02M3/07 ,  G05F1/40

CPC分类号： H02M3/07 ,  Y10S323/901

摘要： A novel supply discriminator circuit is disclosed for detecting the level of a supply voltage during power-up of a system for configuring an integrated analog circuit such as a PCMCIA card. The circuit compares a reference voltage with a divided down supply voltage and latches the result a predetermined delay later. The delay thus provides timing for the supply voltage to stabilize after power-up to assure accurate detection, as well as noise immunity from other devices.

摘要翻译： 公开了一种新颖的电源鉴别器电路，用于在用于配置诸如PCMCIA卡的集成模拟电路的系统的上电期间检测电源电压的电平。 该电路将参考电压与分压电源电压进行比较，并将结果锁存在预定延迟之后。 延迟因此提供供电电压的定时，以在上电后稳定，以确保准确的检测以及来自其他设备的抗噪声能力。

公开(公告)号：US5463336A

公开(公告)日：1995-10-31

申请号：US186939

申请日：1994-01-27

申请人： Rajiv Gupta ,  Raouf Halim ,  Daryush Shamlou

发明人： Rajiv Gupta ,  Raouf Halim ,  Daryush Shamlou

IPC分类号： G06F1/24 ,  G06F1/30 ,  H03K17/22

CPC分类号： H03K17/22 ,  G06F1/24 ,  G06F1/305

摘要： A circuit for detecting a system reset caused by the turning on of power supply of an electronic system. The circuit comprises: latch means coupled to said power supply having a SET input and an output, said output of said latch means being reset to a first predetermined state during power-on; feedback means for receiving said output from said latch means and said system reset, said feedback means activating its output when both of said first predetermined state from said latch means' output and said system reset are present; delay means coupled to the output from said feedback means and to said latch means, said delay means activating its output a predetermined time after said delay means receiving an activated output from said feedback means, said activated output from said delay means setting said latch means to a second predetermined state such that said feedback means remains de-activated when only said system reset is present without power-on.

摘要翻译： 一种用于检测由电子系统的电源接通引起的系统复位的电路。 电路包括：耦合到具有SET输入和输出的所述电源的锁存装置，所述锁存装置的所述输出在上电期间被复位到第一预定状态; 用于从所述锁存装置接收所述输出和所述系统复位的反馈装置，当来自所述锁存装置的所述第一预定状态和所述系统复位存在时，所述反馈装置激活其输出; 延迟装置，其耦合到来自所述反馈装置和所述锁存装置的输出，所述延迟装置在所述延迟装置接收到所述反馈装置的激活输出之后激活其输出预定时间，所述延迟装置的所述激活输出将所述锁存装置设置为 第二预定状态，使得当仅在所述系统复位而没有上电时，所述反馈装置保持去激活。

公开(公告)号：US08477906B2

公开(公告)日：2013-07-02

申请号：US12529867

申请日：2008-03-05

申请人： Theodore F. Morse ,  Rajiv Gupta ,  Carson B. Roberts ,  Robert D. Chivas

发明人： Theodore F. Morse ,  Rajiv Gupta ,  Carson B. Roberts ,  Robert D. Chivas

IPC分类号： G01T1/203 ,  H05G1/64

CPC分类号： G01T1/201 ,  G01T1/16

摘要： A bundle of drawn fibers that have X-ray scintillating unagglommerated nanocrystallite particles in plastic or glass cores of down to 0.1 micron spacing and claddings of X-ray absorbing compounds in the cladding composition. Optional is a cover to the bundle that blocks light from leaving the bundle at the X-ray side while allowing X-rays to pass into the cores. To image the light exiting the fiber bundle at the sub-micron level, light expansion is preferable using either a lens system or a fiber bundle expander.

摘要翻译： 一束拉伸纤维，其在包层组合物中具有低至0.1微米间距的塑料或玻璃芯中具有X射线闪烁的未散射的纳米晶粒和X射线吸收化合物的包层。 可选的是捆绑的封面，阻止光线在X射线侧离开束，同时允许X射线进入核心。 为了在亚微米级别对离开纤维束的光进行成像，使用透镜系统或纤维束扩张器优选进行光膨胀。

公开(公告)号：US08171266B2

公开(公告)日：2012-05-01

申请号：US09922551

申请日：2001-08-02

申请人： Alan H. Karp ,  Rajiv Gupta

发明人： Alan H. Karp ,  Rajiv Gupta

IPC分类号： G06F12/00

CPC分类号： G06F9/3842 ,  G06F9/383

摘要： A method for look-ahead load pre-fetching that reduces the effects of instruction stalls caused by high latency instructions. Look-ahead load pre-fetching is accomplished by searching an instruction stream for load memory instructions while the instruction stream is stalled waiting for completion of a previous instruction in the instruction stream. A pre-fetch operation is issued for each load memory instruction found. The pre-fetch operations cause data for the corresponding load memory instructions to be copied to a cache, thereby avoiding long latencies in the subsequent execution of the load memory instructions.

摘要翻译： 一种用于预先加载预取的方法，可减少由高延迟指令引起的指令停顿的影响。 通过在指令流停止等待指令流中的先前指令的完成的情况下，通过搜索指令流来执行加载存储器指令来实现预先加载预取。 为发现的每个加载存储器指令发出预取操作。 预取操作导致相应的加载存储器指令的数据被复制到高速缓存，从而避免后续执行加载存储器指令的长时间延迟。

公开(公告)号：US08010991B2

公开(公告)日：2011-08-30

申请号：US12018103

申请日：2008-01-22

申请人： Sekhar Sarukkai ,  Rajiv Gupta ,  Raghavendra Prasad

发明人： Sekhar Sarukkai ,  Rajiv Gupta ,  Raghavendra Prasad

IPC分类号： H04L29/06 ,  G06F17/30

CPC分类号： G06F21/6218 ,  G06F21/6236 ,  H04L63/10 ,  H04L63/20

摘要： An externalized entitlement management system comprises a policy administration point that is configured to receive one or more definitions or updates of entitlement policies specifying subjects, actions, and resources, and to update a first entitlement repository coupled to the policy administration point with the definitions or updates in response to receiving the definitions or updates; one or more policy decision points that are coupled to the policy administration point over a network; one or more policy enforcement points that are integrated into one or more respective first application programs, wherein each of the policy enforcement points is coupled to one of the policy decision points; and one or more action handlers in the policy administration point, wherein each of the action handlers is configured to intercept a particular action represented in an update to an entitlement policy, to transform the action into an entitlement update in a form compatible with a native entitlement mechanism of a second application program that does not have one of the policy enforcement points, to send the transformed entitlement update to the second application program, and to cause a rollback of the update of the first entitlement repository if the second application program fails to implement the entitlement update in the native entitlement mechanism.

摘要翻译： 外部化权利管理系统包括被配置为接收指定主题，动作和资源的授权策略的一个或多个定义或更新的策略管理点，并且利用定义或更新来更新耦合到策略管理点的第一授权存储库 响应于接收定义或更新; 通过网络耦合到策略管理点的一个或多个策略决策点; 一个或多个策略执行点被集成到一个或多个相应的第一应用程序中，其中每个策略执行点被耦合到策略决策点之一; 以及策略管理点中的一个或多个动作处理程序，其中每个动作处理程序被配置为拦截在授权策略的更新中表示的特定动作，以将操作转换为与本机授权相兼容的形式的授权更新 第二应用程序的机制，其不具有策略执行点之一，将转换的授权更新发送到第二应用程序，并且如果第二应用程序未能实现，则导致第一授权库的更新的回滚 本机授权机制中的权利更新。

公开(公告)号：US07863897B2

公开(公告)日：2011-01-04

申请号：US12206279

申请日：2008-09-08

申请人： Alexander H. Slocum, Jr. ,  Rajiv Gupta ,  Stephen E. Jones ,  Alexander H. Slocum, Sr.

发明人： Alexander H. Slocum, Jr. ,  Rajiv Gupta ,  Stephen E. Jones ,  Alexander H. Slocum, Sr.

IPC分类号： G01V3/00

CPC分类号： G01R33/58 ,  A61B5/055 ,  A61B6/583 ,  A61B8/587 ,  B33Y80/00

摘要： A system and method for determining the temporal resolution of a tomographic imaging device uses an apparatus to drive one or more dynamic phantoms composed of multiple materials. The apparatus is placed at or near the isocenter of the imaging device and the one or more phantoms are moved to produce a plurality of dynamic features, each having a specified frequency. The dynamic features are imaged with the device and the acquired image data corresponding to the dynamic features is analyzed to determine a temporal modulation transfer value at each of the known specified frequencies. The temporal resolution of the imaging device is determined using these temporal modulation transfer values.

摘要翻译： 用于确定层析成像装置的时间分辨率的系统和方法使用装置来驱动由多种材料组成的一个或多个动态幻影。 该装置放置在成像装置的等角点处或附近，并且移动一个或多个幻影以产生多个具有指定频率的动态特征。 利用设备对动态特征进行成像，并分析对应于动态特征的获取的图像数据，以确定每个已知指定频率处的时间调制转移值。 使用这些时间调制转移值来确定成像装置的时间分辨率。

公开(公告)号：US07757268B2

公开(公告)日：2010-07-13

申请号：US10866508

申请日：2004-06-12

申请人： Rajiv Gupta ,  Sekhar Sarukkal

发明人： Rajiv Gupta ,  Sekhar Sarukkal

IPC分类号： G06F17/00

CPC分类号： H04L63/102 ,  H04L67/02 ,  H04L67/28 ,  H04L67/2823

摘要： A system and a method for policy management in a web services environment includes a policy design tool, a policy storage and a policy manager controller. The policy design tool creates (or updates) a policy for association with a web service. The policy storage stores the policy. The policy manager controller provides an interface for transmission of the policy to a policy enforcement tool and also receives messages relating to the policy from the policy enforcement tool. In addition, a system and method for policy enforcement in a web services environment includes a policy enforcement controller, a policy enforcement repository, an enforcer, a policy enforcement framework, and a policy container. The policy enforcement controller receives and commits a policy and the policy enforcement repository stores the committed policy. The enforcer module receives a request to invoke the policy and the policy enforcement framework determines whether the requested policy is committed in the policy enforcement repository and whether the policy is instantiated. The policy container determines whether the policy is enforceable.

摘要翻译： 用于Web服务环境中的策略管理的系统和方法包括策略设计工具，策略存储和策略管理器控制器。 策略设计工具创建（或更新）与Web服务关联的策略。 策略存储存储策略。 策略管理器控制器提供用于将策略传输到策略执行工具的接口，并且还从策略执行工具接收与该策略相关的消息。 另外，用于web服务环境中的策略执行的系统和方法包括策略执行控制器，策略实施库，执行器，策略实施框架和策略容器。 策略执行控制器接收并提交策略，策略执行库存储所承诺的策略。 执行者模块接收到调用策略的请求，策略执行框架确定策略执行库中是否提交了请求的策略，以及策略是否被实例化。 策略容器确定策略是否可执行。

公开(公告)号：US07596694B1

公开(公告)日：2009-09-29

申请号：US10796690

申请日：2004-03-08

申请人： Alan Karp ,  Arindam Banerji ,  Thomas Wylegala ,  Rajiv Gupta ,  Peter Phaal

发明人： Alan Karp ,  Arindam Banerji ,  Thomas Wylegala ,  Rajiv Gupta ,  Peter Phaal

IPC分类号： H04L29/06

CPC分类号： H04L63/123 ,  H04L67/34

摘要： Embodiments of the present invention include a system and method for making it safe to execute downloaded code. The method includes accessing an application, the application making a system call to a library of a computer system for a resource, establishing a requesting thread. The method further includes the library sending a request message to a local security filter; the local security filter validating the requesting thread and returning a digital signature, that uniquely identifies the requesting thread, to the application. The application making a system call to a kernel of the computer system wherein the kernel uses the digital signature from the security filter to validate the requesting thread before allowing access to the requested resource.

摘要翻译： 本发明的实施例包括用于执行下载代码的安全的系统和方法。 所述方法包括访问应用程序，所述应用程序对资源的计算机系统的库进行系统调用，建立请求线程。 该方法还包括库向本地安全过滤器发送请求消息; 本地安全过滤器验证请求线程并且向应用程序返回唯一地标识请求线程的数字签名。 所述应用程序对所述计算机系统的内核进行系统调用，其中所述内核使用来自所述安全过滤器的数字签名在允许访问所请求的资源之前验证所述请求线程。