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1. 发明授权

US5251125A User interface for a process control device 失效
标题翻译：过程控制设备的用户界面
公开(公告)号：US5251125A
公开(公告)日：1993-10-05
申请号：US516165
申请日：1990-04-30
申请人： Thomas A. Karnowski , Fred W. Haselow , Richard L. Rejret , Edwin C. Witte
发明人： Thomas A. Karnowski , Fred W. Haselow , Richard L. Rejret , Edwin C. Witte
IPC分类号： G05B19/10 , G06F3/023 , G06F3/033 , G06F3/048 , G05B19/42 , G09G3/02
CPC分类号： G06F3/0489 , G05B19/106 , G06F3/0482 , H04M2250/56 , Y02P90/265
摘要： A user interface including a dual navigational menu system forming part of a configuration or programming procedure in a process control device such as a flow controller. The controller includes key pad by which the user enters instructions and data into the device, a display for displaying alphanumeric information and a key pad monitoring means for detecting a predetermined user input indicating that a configuration mode is desired. When in the configuration mode, the pressing of direction keys is detected to sequentially advance through a menu system comprised of a matrix of menu items arranged in rows and columns. Means is also provided for detecting the entry of position data which operates to directly select a given menu item to obviate the need for sequentially advancing through all prior items in order to reach the desired menu item. When a given menu item is activated, random access memory forming part of the device is used to store data entered by the user. A help system is also implemented including a key designated as a "help key" which displays context sensitive information for an activated menu item whenever the "help" key is pressed.
摘要翻译：一种用户界面，包括形成流程控制器等过程控制装置中的配置或编程过程的一部分的双导航菜单系统。控制器包括键盘，用户通过该键盘将指令和数据输入到设备中，用于显示字母数字信息的显示器和用于检测预期用户输入的键盘监视装置，该预定用户输入指示需要配置模式。当处于配置模式时，检测到按下方向键以顺序地前进通过由行和列排列的菜单项的矩阵组成的菜单系统。还提供了用于检测位置数据的输入的装置，其操作以直接选择给定的菜单项，以避免需要依次前进通过所有先前的项目以便达到期望的菜单项。当给定菜单项被激活时，构成设备的一部分的随机存取存储器用于存储由用户输入的数据。还实现了帮助系统，包括被指定为“帮助键”的键，其在按下“帮助”键时显示激活的菜单项的上下文相关信息。

2. 发明授权

US4093850A Ratemeter which calculates the reciprocal of the period 失效
标题翻译：计算周期倒数的速率计
公开(公告)号：US4093850A
公开(公告)日：1978-06-06
申请号：US771169
申请日：1977-02-22
申请人： Thomas A. Karnowski , Michael W. Shawaluk
发明人： Thomas A. Karnowski , Michael W. Shawaluk
IPC分类号： G01R23/10 , G01R23/02 , G06M3/00 , G06M7/00
CPC分类号： G01R23/02
摘要： A fast response digital ratemeter is disclosed which calculates the reciprocal of every period between consecutive event pulses. A period counter is continuously incremented by clock pulses of a known frequency and measures the interval between event pulses by accumulating the clock pulses. Each event pulse both marks the end of the previous period and the beginning of the new period by latching the accumulated incremented counts of the period counter into a memory and resetting the period counter to immediately begin re-accumulating clock pulses occurring in the new period. The memory applies the accumulated counts as a divisor to divider means which divides the divisor into a known constant by repetitively subtracting the divisor from the constant. Since the divisor is retained by the memory, incrementation to the value of the divisor is necessary only once (during measurement of the period by the period counter), not before each subtraction, thus minimizing calculation time. Display counter means count the number of subtractions performed and display this as the rate of recurrence of input events in units determined by the constant. Decimal point shifting (including underflow and overflow detection), period averaging, overrun detection, and synchronization of event and clock pulses are also disclosed.
摘要翻译：公开了一种快速响应数字速率计，其计算连续事件脉冲之间的每个周期的倒数。周期计数器通过已知频率的时钟脉冲连续增加，并通过累加时钟脉冲来测量事件脉冲之间的间隔。每个事件脉冲都通过将周期计数器的累积递增计数锁存到存储器中并重新设置周期计数器来标记新周期的结束和新周期的开始，以立即开始重新累积新周期中出现的时钟脉冲。存储器将累积计数作为除数分配给除数器，该除法器通过从常数重复地减去除数来将除数分成已知常数。由于除数由存储器保留，所以除数除数的值只需要一次（在周期计数器的测量期间），而不是在每次减法之前，因此最小化计算时间。显示计数器表示计算执行的减法数，并将其显示为以常数确定的单位为单位的输入事件复发率。还公开了小数点移位（包括下溢和溢出检测），周期平均，超限检测和事件和时钟脉冲的同步。

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