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1. 发明授权

US5339092A Beam former for matrix display 失效
标题翻译：用于矩阵显示的光束
公开(公告)号：US5339092A
公开(公告)日：1994-08-16
申请号：US5851
申请日：1993-01-13
申请人： Michael J. Johnson , William R. Hancock , Brent H. Larson
发明人： Michael J. Johnson , William R. Hancock , Brent H. Larson
IPC分类号： G09G3/00 , G09G3/20 , G09G5/20 , G09G5/39 , G09G5/395 , G09G5/399 , G09G5/36 , G09G3/36
CPC分类号： G09G5/399 , G09G3/2074 , G09G5/20 , G09G5/395 , G09G2300/0452 , G09G3/001
摘要： A graphics system having a beamformer operating on image data and sub-pixel or fractional address data coming from a modified image memory and graphics processor producing correctly anti-aliased data to be shown on raster displays and in particular on color mosaic active matrix displays.
摘要翻译：具有波束形成器的图形系统，其操作图像数据和来自修改的图像存储器的图像数据和子像素或分数地址数据，以及图形处理器，其产生将被显示在光栅显示器上，特别是在彩色镶嵌有源矩阵显示器上的正交抗锯齿数据。

2. 发明授权

US5264838A Apparatus for generating an anti-aliased display image halo 失效
标题翻译：用于产生抗锯齿显示图像光晕的装置
公开(公告)号：US5264838A
公开(公告)日：1993-11-23
申请号：US751911
申请日：1991-08-29
申请人： Michael J. Johnson , Brent H. Larson
发明人： Michael J. Johnson , Brent H. Larson
IPC分类号： G09G5/36 , G06T3/00 , G06T5/20 , G09G5/10 , G09G5/20 , G09G5/395 , G09G5/00
CPC分类号： G09G5/20 , G09G5/395
摘要： Apparatus and method are disclosed for providing a halo (background region) around selected image data in an anti-aliased image processing system. The anti-aliased image processing system applies a distribution function to an image (impulse) point so that the impulse point contributes to the display for a plurality of pixels. In order to provide a halo, a second or halo distribution function, extending beyond the anti-aliasing distribution function, is assigned to selected impulse points. For the current pixel, the pixel for which the display attributes are being determined, the contribution to the current pixel from neighboring pixels for both the anti-aliasing distribution function and the halo distribution function are determined separately. Then the contributions from each source are combined to determine the display characteristics of the currently activated pixel. The invention provides a technique for combining or prioritizing contributions from display regions including overlapping sets impulse points.
摘要翻译：公开了用于在抗锯齿图像处理系统中围绕所选图像数据提供晕轮（背景区域）的装置和方法。抗锯齿图像处理系统将分布函数应用于图像（脉冲）点，使得脉冲点有助于多个像素的显示。为了提供光晕，延伸超过抗混叠分布函数的第二或光晕分布函数被分配给选择的脉冲点。对于当前像素，正在确定显示属性的像素，分别确定对抗锯齿分布函数和光晕分布函数对相邻像素的当前像素的贡献。然后将来自每个源的贡献组合以确定当前激活的像素的显示特性。本发明提供了一种用于组合或优先显示包括重叠组脉冲点的显示区域的贡献的技术。

3. 发明授权

US06382226B1 Method for detecting broken valve stem 有权
标题翻译：破坏阀杆检测方法
公开(公告)号：US06382226B1
公开(公告)日：2002-05-07
申请号：US09836307
申请日：2001-04-17
申请人： Brent H. Larson , Harry A. Burns , Larry Keith Brown
发明人： Brent H. Larson , Harry A. Burns , Larry Keith Brown
IPC分类号： F16K3700
CPC分类号： F16K37/0041 , F16K37/0083 , F16K37/0091 , Y10T137/0318 , Y10T137/7759 , Y10T137/7761 , Y10T137/8175 , Y10T137/8242
摘要： A method for providing an indication and alarm of a possible failure in a fluid control valve stem, plug or seat in a process control system having a microprocessor based valve positioner. The drive pressure, drive signal and valve position feedback are monitored. If greater than a predetermined change in the drive pressure or the valve position feedback is detected, then a second series of detection steps is initiated. In the second detection steps the present set point to process value relationship, such as flow rate or other process variable is compared to a stored test cycle derived set point to process value relationship for the same set point. If there is a process value change, then the operator is alerted as this change may indicate there is a damaged valve stem, plug, or seat problem which needs to be inspected.
摘要翻译：一种用于在具有基于微处理器的阀门定位器的过程控制系统中的流体控制阀杆，塞子或座椅中提供可能故障的指示和报警的方法。监控驱动压力，驱动信号和阀位反馈。如果检测到大于驱动压力或阀位置反馈的预定变化，则启动第二系列检测步骤。在第二检测步骤中，将当前设定点到过程值关系，例如流量或其他过程变量与存储的测试循环导出的设定点进行比较，以达到相同设定点的过程值关系。如果有过程值更改，则会警告操作员，因为此更改可能指示需要检查的阀杆，插头或座椅问题受损。

4. 发明授权

US06192281B1 Network accessible interface for a process control network 失效
标题翻译：用于过程控制网络的网络可访问接口
公开(公告)号：US06192281B1
公开(公告)日：2001-02-20
申请号：US08983017
申请日：1997-12-30
申请人： Larry K. Brown , Harry A. Burns , Brent H. Larson
发明人： Larry K. Brown , Harry A. Burns , Brent H. Larson
IPC分类号： G05B1500
CPC分类号： G05B19/4185 , G05B19/0425 , G05B2219/25139 , G05B2219/25274 , G05B2219/25428 , G05B2219/31121 , Y02P90/18 , Y02P90/86
摘要： An interface between a remote communications network and a process control system includes a storage device, a communication software stack and a user software layer. The user software layer enables interfacing between the remote communications network and the process control system by directing the communication software stack to operate in the process control system using a process communication protocol, by monitoring the message traffic on the communication software stack, and by copying requested message traffic to the storage device. The user software layer also includes media interface software that allows access to the storage device by the remote communications network to thereby deliver specific data to a device connected to the remote communications network.
摘要翻译：远程通信网络和过程控制系统之间的接口包括存储设备，通信软件堆栈和用户软件层。用户软件层通过指示通信软件堆栈使用过程通信协议在过程控制系统中操作，通过监视通信软件堆栈上的消息业务，并通过复制请求，来实现远程通信网络和过程控制系统之间的接口消息流量到存储设备。用户软件层还包括允许远程通信网络访问存储设备从而将特定数据传送到连接到远程通信网络的设备的媒体接口软件。

5. 发明授权

US06377859B1 Maintenance interface device for a use in a process control network 失效
标题翻译：用于过程控制网络的维护接口设备
公开(公告)号：US06377859B1
公开(公告)日：2002-04-23
申请号：US08983018
申请日：1997-12-30
申请人： Larry K. Brown , Brent H. Larson , Harry A. Burns
发明人： Larry K. Brown , Brent H. Larson , Harry A. Burns
IPC分类号： G05B902
CPC分类号： H04L12/40013 , G05B19/4185 , G05B23/0227 , G05B23/0256 , Y02P90/18
摘要： A maintenance interface device for use in a digital, loop-powered process control network includes an interface to either a two-wire input/output port of a field device or to a two-wire communication media, a control logic for determining a simple status of the field device or communication loop, and a display for displaying the simple status. The maintenance interface device may be used for fault analysis to detect whether a field device or a communication loop is operational or nonoperational, powered or unpowered, and generating a valid communication signal or generating an invalid communication signal. The maintenance interface device is adapted to perform simple functionality tests on a plurality of devices in a process control network including a loop controller, a digital control system, an operator console, a workstation, a personal computer, and a bridge to thereby detect the functionality of those devices on a communication wire. The maintenance interface device is self-powered, powered from the device under service, or powered from a communication media such as a bus.
摘要翻译：用于数字环路供电过程控制网络的维护接口设备包括到现场设备的两线输入/输出端口或两线通信介质的接口，用于确定简单状态的控制逻辑的现场设备或通信环路，以及用于显示简单状态的显示器。维护接口设备可以用于故障分析以检测现场设备或通信环路是可操作的还是非操作的，供电的或无电源的，并且产生有效的通信信号或产生无效的通信信号。维护接口设备适于在包括循环控制器，数字控制系统，操作员控制台，工作站，个人计算机和桥接器的过程控制网络中的多个设备上执行简单的功能测试，从而检测功能通信线上的那些设备。维护接口设备是自供电的，从正在使用的设备供电，或由诸如总线的通信介质供电。

6. 发明授权

US6026352A Local device and process diagnostics in a process control network having distributed control functions 有权
标题翻译：具有分布式控制功能的过程控制网络中的本地设备和过程诊断
公开(公告)号：US6026352A
公开(公告)日：2000-02-15
申请号：US167766
申请日：1998-10-07
申请人： Harry A. Burns , Brent H. Larson , Larry K. Brown
发明人： Harry A. Burns , Brent H. Larson , Larry K. Brown
IPC分类号： G05B19/02 , G05B19/042 , G05B19/418
CPC分类号： G05B19/0425 , G05B19/4185 , G05B2219/25428 , G05B2219/31211 , G05B2219/33326 , G05B2219/33331 , G05B2219/34427 , Y02P90/18
摘要： A field device for use in a process control network having a plurality of devices communicatively coupled by a two-wire, all-digital communication bus includes a connector that connects the field device to the two-wire, all-digital bus to enable all-digital communication over the bus, a memory that stores a diagnostic test routine having a series of device or process diagnostic test instructions, and a controller that performs the device or process diagnostic test instructions stored in the memory to implement a device or process diagnostic test using the field device. A data collection unit within the field device collects diagnostic data generated during the diagnostic test and a communication unit communicates the collected diagnostic data over the bus to a host device for processing. The controller may include a program language interpreter adapted to interpret the diagnostic test instructions which may be provided to the field device from another one of the devices via the bus.
摘要翻译：用于具有通过双线全数字通信总线通信耦合的多个设备的过程控制网络的现场设备包括将现场设备连接到两线全数字总线的连接器，通过总线的数字通信，存储具有一系列设备或过程诊断测试指令的诊断测试例程的存储器，以及执行存储在存储器中的设备或过程诊断测试指令以执行设备或过程诊断测试的控制器，以使用现场设备。现场设备内的数据收集单元收集在诊断测试期间产生的诊断数据，并且通信单元通过总线将收集的诊断数据传送到主机设备进行处理。控制器可以包括程序语言解释器，其适于解释可以经由总线从另一个设备提供给现场设备的诊断测试指令。

7. 发明授权

US6047222A Process control network with redundant field devices and buses 失效
标题翻译：具有冗余现场设备和总线的过程控制网络
公开(公告)号：US6047222A
公开(公告)日：2000-04-04
申请号：US983019
申请日：1997-12-30
申请人： Harry A. Burns , Brent H. Larson , Larry K. Brown
发明人： Harry A. Burns , Brent H. Larson , Larry K. Brown
IPC分类号： G05B19/04 , G05B19/418 , G06F15/177 , G05B9/02
CPC分类号： G05B19/4184 , G05B19/41855 , G05B2219/24175 , G05B2219/24182 , G05B2219/31121 , G05B2219/31245 , Y02P90/14 , Y02P90/185
摘要： Functional elements within a two-wire, loop-powered, two-way digital communications environment are interconnected using selective redundant connections and selective redundant functional elements. The redundant functional elements and redundant connections provide a smooth transition from operation of a primary process loop element to a secondary process loop element in the event of a failure of the primary process loop element. Redundancy is selectively implemented using a redundant pair of field devices or a redundant bus pair having a primary bus and a redundant bus. In a first case, redundancy is selectively implemented using a single set of communication media, such as a single communication loop, but implementing redundant functional elements, such as field devices, so that recovery is achieved upon failure of a functional element but not upon failure of the communication media. In a second case, redundancy is selectively implemented using a redundant set of communication media in addition to use of redundant devices so that recovery is attained both for a failing device and a failing communication media. In a third case, redundancy is selectively implemented using a redundant set of communication media but using a single device so that recovery is attained for a failing communication media but not for a failing device.
摘要翻译： PCT No.PCT / US97 / 17983 Sec。 371日期1997年12月30日 102（e）1997年12月30日PCT PCT 1997年10月3日PCT公布。 WO96 / 12993 PCT出版物日期1996年5月2日两线环路供电的双向数字通信环境中的功能元件使用选择性冗余连接和选择性冗余功能元件进行互连。冗余功能元件和冗余连接在主过程环路元件发生故障的情况下提供从主过程环路元件的操作到辅助过程回路元件的平滑过渡。使用冗余现场设备对或具有主总线和冗余总线的冗余总线对来选择性地实现冗余。在第一种情况下，使用单一通信介质（例如单个通信环路）来选择性地实现冗余，但是实现诸如现场设备的冗余功能元件，使得在功能元件故障时而不是故障时实现恢复的通讯媒体。在第二种情况下，除了使用冗余设备之外，还使用冗余的通信介质集来选择性地实现冗余，从而为故障设备和故障通信介质实现恢复。在第三种情况下，使用冗余的通信介质集合来选择性地实现冗余，但是使用单个设备，使得对于故障通信介质而不是为了故障设备而实现恢复。

8. 发明授权

US6044305A Method and apparatus for debugging and tuning a process control network having distributed control functions 失效
标题翻译：用于调试和调整具有分布式控制功能的过程控制网络的方法和装置
公开(公告)号：US6044305A
公开(公告)日：2000-03-28
申请号：US983020
申请日：1997-12-30
申请人： Brent H. Larson , Harry A. Burns , Larry K. Brown
发明人： Brent H. Larson , Harry A. Burns , Larry K. Brown
IPC分类号： G05B19/02 , G05B19/418 , G05B19/42
CPC分类号： G05B19/4184 , G05B19/4185 , G05B2219/31113 , G05B2219/31119 , G05B2219/31121 , G05B2219/31211 , G05B2219/33273 , G05B2219/33326 , G05B2219/34427 , G05B2219/45226 , Y02P90/14 , Y02P90/18 , Y02P90/20
摘要： A system and method for debugging and tuning a process control network having distributed control functions implemented by a set of field devices communicatively linked over a bus includes an operational scheduler that schedules the execution of each of a number of process control functions and communication functions performed by the field devices to define a process control scheme and an indicator that indicates one or more process control scheme locations at which the process control scheme is to be automatically or conditionally interrupted to thereby enable debugging and/or tuning of the process control network. A controller interrupts execution of the process control scheme at the indicated flow locations, communicates process data to a user to display the current or a past state of the process to a user and waits for user input before continuing with operation of the process control scheme. In a tuning mode, the controller delivers data pertaining to a process parameter to a tuning device or to a user which determines a new tuning parameter, such as a gain, to be used within the process control scheme based on the process parameter data.
摘要翻译： PCT No.PCT / US97 / 17343 Sec。 371日期1997年12月30日 102（e）日期1997年12月30日PCT 1997年9月6日PCT公布。第WO98 / 14851号公报日期1998年9月4日一种用于调试和调整具有由通过总线通信地链接的一组现场设备实现的分布式控制功能的过程控制网络的系统和方法包括：操作调度器，其调度多个过程控制功能中的每一个的执行以及由现场设备执行的定义过程控制方案的通信功能和指示过程控制方案将被自动或有条件地中断的一个或多个过程控制方案位置的指示符，从而能够调试和/或调整过程控制网络。 A控制器在所指示的流程位置中断执行过程控制方案，将过程数据传送给用户以向用户显示过程的当前状态或过去状态，并在继续操作过程控制方案之前等待用户输入。在调谐模式中，控制器将与处理参数相关的数据传送到调谐装置或用户，其基于过程参数数据确定要在过程控制方案内使用的新的调谐参数（例如增益）。

9. 发明授权

US5970430A Local device and process diagnostics in a process control network having distributed control functions 失效
公开(公告)号：US5970430A
公开(公告)日：1999-10-19
申请号：US922938
申请日：1997-09-03
申请人： Harry A. Burns , Brent H. Larson , Larry K. Brown
发明人： Harry A. Burns , Brent H. Larson , Larry K. Brown
IPC分类号： G05B19/02 , G05B19/042 , G05B19/418 , G06F15/40 , G06F11/30
CPC分类号： G05B19/0425 , G05B19/4185 , G05B2219/25428 , G05B2219/31211 , G05B2219/33326 , G05B2219/33331 , G05B2219/34427 , Y02P90/18
摘要： A field device for use in a process control network having a plurality of devices communicatively coupled by a two-wire, all-digital communication bus includes a connector that connects the field device to the two-wire, all-digital bus to enable all-digital communication over the bus, a memory that stores a diagnostic test routine having a series of device or process diagnostic test instructions, and a controller that performs the device or process diagnostic test instructions stored in the memory to implement a device or process diagnostic test using the field device. A data collection unit within the field device collects diagnostic data generated during the diagnostic test and a communication unit communicates the collected diagnostic data over the bus to a host device for processing. The controller may include a program language interpreter adapted to interpret the diagnostic test instructions which may be provided to the field device from another one of the devices via the bus.

10. 发明授权

US07580992B2 Downloadable code in a distributed process control system 有权
标题翻译：分布式过程控制系统中可下载的代码
公开(公告)号：US07580992B2
公开(公告)日：2009-08-25
申请号：US10886272
申请日：2004-07-06
申请人： Clyde T. Eisenbeis , Brent H. Larson , Steve A. Packwood , Larry K. Brown
发明人： Clyde T. Eisenbeis , Brent H. Larson , Steve A. Packwood , Larry K. Brown
IPC分类号： G06F15/177
CPC分类号： G05B19/4185 , G05B19/0426 , G05B2219/23298 , G05B2219/25014 , G05B2219/25428 , G05B2219/31121 , G05B2219/31135 , G05B2219/31138 , Y02P90/18
摘要： The present invention is directed to a method of reprogramming a field device in a process control network using the standard communications protocol for the network, and a reprogrammable field device in the process control network adapted for being reprogrammed using the standard communications protocol for the network. The method and device of the present invention use the standard communications protocol to transmit the downloaded code to the field device and store the downloaded code in the field device while the device is enabled to perform process control. Once the new code is downloaded and stored in the field device, the field device is set to a steady state condition and/or disabled from performing process control, reprogrammed to execute the downloaded code, and reenabled to perform process control.
摘要翻译：本发明涉及一种使用网络的标准通信协议对过程控制网络中的现场设备进行重新编程的方法，以及适于使用网络的标准通信协议重新编程的过程控制网络中的可重新编程的现场设备。本发明的方法和装置使用标准通信协议将下载的代码发送到现场设备，并且在设备能够执行过程控制的同时将下载的代码存储在现场设备中。一旦将新代码下载并存储在现场设备中，现场设备被设置为稳定状态条件和/或禁止执行过程控制，重新编程以执行下载的代码，并重新启用以执行过程控制。

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