公开(公告)号：US06339361B1

公开(公告)日：2002-01-15

申请号：US09328927

申请日：1999-06-09

申请人： Sabah Khesbak ,  Madhukar Reddy ,  Pramote Piriyapoksombut ,  Trevor Robinson

发明人： Sabah Khesbak ,  Madhukar Reddy ,  Pramote Piriyapoksombut ,  Trevor Robinson

IPC分类号： H03G310

CPC分类号： H03G3/3042 ,  H03F1/0261 ,  H03F1/302

摘要： A driver system for a power amplifier in a wireless communication handset. The driver system includes a driver and a current source. The driver drives the power amplifier at a level of linearity determined responsive to a variable input bias current provided by the current source. The current source varies the bias current, and thus the degree of linearity provided, responsive to the desired output power of the handset.

摘要翻译： 一种用于无线通信手机中的功率放大器的驱动器系统。 驱动器系统包括驱动器和电流源。 驱动器以响应于由电流源提供的可变输入偏置电流确定的线性度驱动功率放大器。 电流源根据手机所需的输出功率改变偏置电流，从而提供线性度。

公开(公告)号：US06445251B1

公开(公告)日：2002-09-03

申请号：US09163892

申请日：1998-09-30

申请人： Trevor Robinson

发明人： Trevor Robinson

IPC分类号： H03F345

CPC分类号： H03F3/4508 ,  H03G1/0023

摘要： A variable gain amplifier that has a high linearity gain stage coupled with a low noise gain stage, and a steering circuit that steers the input signal between these two stages depending on the gain requirement. The preferred embodiment employs steering of the input signal and extensive linearization (in dB) of the control signal to provide stable and linear gain control and high dynamic range. One embodiment includes a first differential amplifier stage having no emitter degeneration and configured to receive a differential input signal and contribute to an output signal current; a second differential amplifier stage having emitter degeneration and higher linearity than the first differential amplifier stage, and configured to receive the differential input signal and contribute to the output signal current; a first current source coupled to the first differential amplifier stage and regulated by a control signal X according to the formula I*(K−x), where K is a constant and x is a variable ranging from 0 to K; a second current source coupled to the second differential amplifier stage and regulated by a control signal X according to the formula I*(x); and a signal steering circuit, coupled to the first and second differential amplifier stages, for steering the output signal current from the first and second differential amplifier stages either to a voltage source or to a corresponding load resistor.

摘要翻译： 具有与低噪声增益级耦合的高线性度增益级的可变增益放大器和根据增益要求在这两级之间转向输入信号的转向电路。 优选实施例使用输入信号的转向和控制信号的广泛线性化（以dB为单位），以提供稳定和线性增益控制和高动态范围。 一个实施例包括不具有发射极退化并被配置为接收差分输入信号并有助于输出信号电流的第一差分放大器级; 第二差分放大器级具有发射极退化和比第一差分放大器级高的线性度，并且被配置为接收差分输入信号并有助于输出信号电流; 耦合到第一差分放大器级并根据公式I *（K-x）由控制信号X调节的第一电流源，其中K是常数，x是从0到K的变量; 耦合到第二差分放大器级并根据公式I *（x）由控制信号X调节的第二电流源; 以及耦合到第一和第二差分放大器级的信号转向电路，用于将来自第一和第二差分放大器级的输出信号电流转向电压源或相应的负载电阻。

公开(公告)号：US20140189104A1

公开(公告)日：2014-07-03

申请号：US14137921

申请日：2013-12-20

申请人： Niall Joseph Dalton ,  Trevor Robinson

发明人： Niall Joseph Dalton ,  Trevor Robinson

IPC分类号： H04L12/26

CPC分类号： G06F15/17331 ,  G06F9/5061 ,  G06F2209/509 ,  H04L43/0876 ,  Y02D10/22 ,  Y02D10/36

摘要： Embodiments of the present invention provide an improvement over known approaches for monitoring of and taking action on observations associated with distributed applications. Application event reporting and application resource monitoring is unified in a manner that significantly reduces storage and aggregation overhead. For example, embodiments of the present invention can employ hardware and/or software support that reduces storage and aggregation overhead. In addition to providing for fine-grained, continuous, decentralized monitoring of application activity and resource consumption, embodiments of the present invention can also provide for decentralized filtering, statistical analysis, and derived data streaming. Furthermore, embodiments of the present invention are securely implemented (e.g., for use solely under the control of an operator) and can use a separate security domain for network traffic.

摘要翻译： 本发明的实施例提供了用于监测和对与分布式应用相关联的观察采取行动的已知方法的改进。 应用程序事件报告和应用程序资源监视以显着减少存储和集合开销的方式统一。 例如，本发明的实施例可以采用降低存储和集合开销的硬件和/或软件支持。 除了提供对应用程序活动和资源消耗的细粒度，连续，分散的监控之外，本发明的实施例还可以提供分散式过滤，统计分析和派生数据流。 此外，本发明的实施例被安全地实现（例如，仅在运营商的控制下使用），并且可以使用单独的安全域来进行网络业务。

公开(公告)号：US20070019648A1

公开(公告)日：2007-01-25

申请号：US11185547

申请日：2005-07-20

申请人： Trevor Robinson ,  Mark Davis

发明人： Trevor Robinson ,  Mark Davis

IPC分类号： H04L12/56

CPC分类号： H04L43/50

摘要： A method for facilitating tracking of packets through a plurality of localized transaction-tagging domains comprises determining a local tag applied within a first localized transaction-tagging domain to an output packet of the first localized transaction-tagging domain and assigning a system-generated global transaction tag to the output packet dependent upon the local tag. Assigning is performed in response to successfully performing the determining. The global transaction tag information is re-applied to an output packet of a second localized transaction-tagging domain after the packet is generated by the second localized transaction-tagging domain. The global transaction tag is a unique identifier that identifies all packets associated with a particular transaction globally across a plurality of localized transaction-tagging domains.

摘要翻译： 一种用于促进通过多个本地化事务标签域对数据包进行跟踪的方法包括：将在第一本地化事务标记域内应用的本地标签确定到第一本地化事务标记域的输出包，并分配系统生成的全局事务 标签到输出数据包，取决于本地标签。 响应于成功执行确定而执行分配。 在由第二本地化事务标记域生成分组之后，全局交易标签信息被重新应用于第二本地化交易标签域的输出分组。 全局事务标记是唯一的标识符，其在多个本地化事务标记域中标识与全局特定事务相关联的所有数据包。

公开(公告)号：US20140189039A1

公开(公告)日：2014-07-03

申请号：US14137940

申请日：2013-12-20

申请人： Niall Joseph Dalton ,  Trevor Robinson

发明人： Niall Joseph Dalton ,  Trevor Robinson

IPC分类号： G06F15/173

CPC分类号： G06F15/17331 ,  G06F9/5061 ,  G06F2209/509 ,  H04L43/0876 ,  Y02D10/22 ,  Y02D10/36

摘要： A data processing node includes a management environment, an application environment, and a shared memory segment (SMS). The management environment includes at least one management services daemon (MSD) running on one or more dedicated management processors thereof. One or more application protocols are executed by the at least one MSD on at least one of the dedicated management processors. The management environment has a management interface daemon (MID) running on one or more application central processing unit (CPU) processors thereof. The SMS is accessible by the at least one MSD and the MID for enabling communication of information of the one or more application protocols to be provided between the at least one MSD and the MID. The MID provides at least one of management service to processes running within the application environment and local resource access to one or more processes running on another data processing node.

摘要翻译： 数据处理节点包括管理环境，应用环境和共享存储器段（SMS）。 管理环境包括在其一个或多个专用管理处理器上运行的至少一个管理服务守护进程（MSD）。 一个或多个应用协议由至少一个专用管理处理器上的至少一个MSD执行。 管理环境具有在其一个或多个应用中央处理单元（CPU）处理器上运行的管理接口守护程序（MID）。 所述SMS可由所述至少一个MSD和所述MID访问，以使得能够在所述至少一个MSD和所述MID之间提供所述一个或多个应用协议的信息的通信。 MID为处理运行在应用程序环境中的进程提供至少一个管理服务，并为在另一个数据处理节点上运行的一个或多个进程提供本地资源访问。

公开(公告)号：US20060253271A1

公开(公告)日：2006-11-09

申请号：US11114568

申请日：2005-04-26

申请人： Mark Davis ,  Trevor Robinson ,  Jon Nall

发明人： Mark Davis ,  Trevor Robinson ,  Jon Nall

IPC分类号： G06F17/50

CPC分类号： G06F17/5022 ,  G06F8/52

摘要： A method comprises analyzing multi-threaded process-oriented object code representing a simulation model and transforming said multi-threaded process-oriented object code to event-based object code representing a simulation model equivalent to simulation model represented by said multi-threaded process-oriented object code. Transformation is performed automatically in response to the analysis and includes creating continuation functionality between adjacent threads of execution. Analyzing object code includes determining a potentially blocking method and analyzing its control flow. Transforming multi-threaded process-oriented object code includes configuring the event-based object code to schedule a jump to a first one of a plurality of non-blocking Runnable methods of the simulation model represented by the event-based object code. Analyzing control flow of the potentially blocking method includes segmenting the potentially blocking method into the plurality of non-blocking Runnable methods and associating each one of the non-blocking Runnable methods with a respective one of a plurality of available exception handlers.

摘要翻译： 一种方法包括分析表示仿真模型的多线程过程导向目标代码，并将所述多线程面向过程的目标代码转换为基于事件的目标代码，该代码表示​​与所述多线程进程导向表示的仿真模型相当的仿真模型 目标代码。 响应于分析自动执行转换，并且包括在相邻执行线程之间创建继续功能。 分析目标代码包括确定潜在的阻塞方法并分析其控制流程。 转换多线程面向过程的目标代码包括配置基于事件的目标代码来调度跳转到由基于事件的目标代码表示的模拟模型的多个非阻塞Runnable方法中的第一个。 分析潜在阻塞方法的控制流程包括将潜在阻塞方法分割成多个非阻塞Runnable方法，并将每个非阻塞Runnable方法与多个可用异常处理程序中的相应一个关联。

公开(公告)号：US6124761A

公开(公告)日：2000-09-26

申请号：US163885

申请日：1998-09-30

申请人： Trevor Robinson ,  Pramote Piriyapoksombu

发明人： Trevor Robinson ,  Pramote Piriyapoksombu

IPC分类号： H03G7/06 ,  H03F3/45

CPC分类号： H03G7/06

摘要： A variable gain amplifier (VGA) having a control voltage source that provides high gain-to-control voltage linearity over at least an 80 dB gain range. Further, the gain curve for the VGA is essentially independent of temperature. In the preferred embodiment, the VGA includes a two-stage bipolar differential amplifier. Each stage is a transconductor followed by current steering. The first stage amplifier is coupled to an exponentially varying current source to change the transconductance of the stage. The second stage amplifier is coupled to an fixed current source to maintain a fixed transconductance for the stage. To obtain exponential current steering, the control signal for the current steering circuitry is pre-distorted by the following equation:I/(1+exp(-f(V.sub.CTRL /V.sub.T))=I*A*exp(V.sub.CTRL /V.sub.REF),where A is a scaling factor, V.sub.T =kT/q, and T is temperature in Kelvin. The invention includes a fast, inexpensive control voltage source that provides such a signal.

摘要翻译： 具有控制电压源的可变增益放大器（VGA），其在至少80dB增益范围内提供高增益控制电压线性度。 此外，VGA的增益曲线基本上与温度无关。 在优选实施例中，VGA包括两级双极差分放大器。 每个阶段都是跨导体，随后是电流转向。 第一级放大器耦合到指数变化的电流源以改变级的跨导。 第二级放大器耦合到固定电流源以维持该级的固定跨导。 为了获得指数电流转向，用于当前转向电路的控制信号由以下等式预失真：I /（1 + exp（-f（VCTRL / VT））= I * A * exp（VCTRL / VREF） 其中A是比例因子，VT = kT / q，T是以开尔文为单位的温度。本发明包括提供这种信号的快速，便宜的控制电压源。

公开(公告)号：US20060277552A1

公开(公告)日：2006-12-07

申请号：US11142227

申请日：2005-06-01

申请人： Jonathan Nall ,  Trevor Robinson

发明人： Jonathan Nall ,  Trevor Robinson

IPC分类号： G06F9/46

CPC分类号： G06F9/4812 ,  G06F2209/481

摘要： A method for facilitating handling of exceptions in object code transformed from a 1-to-1 threading model to a M-to-N threading model comprises transforming object code having a 1-to-1 threading model to a M-to-N threading model, saving context of a Runnable section of the object code into a context object in response to an exception occurring and rethrowing the exception after performing the saving. The transforming includes creating a Boolean enable value in a method context for an exception handler in the method context, mapping an exception type to the exception handler and wrapping a Runnable section of the object code within a respective synthetic exception handler. The respective synthetic exception handler is configured for saving context of the object code Runnable into a context object in response to an exception occurring and rethrowing the exception after performing the saving.

摘要翻译： 一种用于便利处理从1对1线程模型转换为M到N线程模型的目标代码中的异常的方法包括将具有1对1线程模型的目标代码转换为M到N线程 模型，将对象代码的Runnable部分的上下文保存到上下文对象中，以响应异常发生并在执行保存后重新抛出异常。 转换包括在方法上下文中的异常处理程序的方法上下文中创建布尔启用值，将异常类型映射到异常处理程序，并将对象代码的Runnable部分包含在相应的合成异常处理程序中。 相应的合成异常处理程序被配置为将对象代码Runnable的上下文保存到上下文对象中，以响应发生异常并在执行保存之后重新抛出异常。