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公开(公告)号：US20050137719A1
公开(公告)日：2005-06-23
申请号：US11006851
申请日：2004-12-08
IPC分类号： G06F12/00 , G01D5/00 , G05B11/01 , G05B15/00 , G05B19/042 , G05B19/18 , G06F9/445 , G06F13/16
CPC分类号： G05B19/0426 , G05B2219/23314 , G05B2219/25428
摘要： A memory updating system for a field device involves a fieldbus, one or more field devices that incorporate a nonvolatile memory and are connected to the fieldbus, a host system that is directly or indirectly connected to the fieldbus and transmits an updating instruction and updating data to one of the field devices in order to update the nonvolatile memory of the field device, and a current control circuit that controls a current provided from the fieldbus. The current control circuit increases the current provided from the fieldbus to a value greater than a normal value before the field device erases data stored in the nonvolatile memory, and returns the current provided from the fieldbus to the normal value after the field device completes the erasing of the data stored in the nonvolatile memory.
摘要翻译： 用于现场设备的存储器更新系统涉及现场总线，一个或多个现场设备，其包含非易失性存储器并连接到现场总线，直接或间接连接到现场总线的主机系统，并将更新指令和更新数据发送到 用于更新现场设备的非易失性存储器的现场设备之一以及控制从现场总线提供的电流的电流控制电路。 在现场设备擦除存储在非易失性存储器中的数据之前，电流控制电路将从现场总线提供的电流增加到大于正常值的值，并且在现场设备完成擦除之后将从现场总线提供的电流返回到正常值 存储在非易失性存储器中的数据。
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公开(公告)号：US07124239B2
公开(公告)日：2006-10-17
申请号：US11006851
申请日：2004-12-08
CPC分类号： G05B19/0426 , G05B2219/23314 , G05B2219/25428
摘要： A memory updating system for a field device involves a fieldbus, one or more field devices that incorporate a nonvolatile memory and are connected to the fieldbus, a host system that is directly or indirectly connected to the fieldbus and transmits an updating instruction and updating data to one of the field devices in order to update the nonvolatile memory of the field device, and a current control circuit that controls a current provided from the fieldbus. The current control circuit increases the current provided from the fieldbus to a value greater than a normal value before the field device erases data stored in the nonvolatile memory, and returns the current provided from the fieldbus to the normal value after the field device completes the erasing of the data stored in the nonvolatile memory.
摘要翻译： 用于现场设备的存储器更新系统涉及现场总线，一个或多个现场设备，其包含非易失性存储器并连接到现场总线，直接或间接连接到现场总线的主机系统，并将更新指令和更新数据发送到 用于更新现场设备的非易失性存储器的现场设备之一以及控制从现场总线提供的电流的电流控制电路。 在现场设备擦除存储在非易失性存储器中的数据之前，电流控制电路将从现场总线提供的电流增加到大于正常值的值，并且在现场设备完成擦除之后将从现场总线提供的电流返回到正常值 存储在非易失性存储器中的数据。
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公开(公告)号：US07333901B2
公开(公告)日：2008-02-19
申请号：US11080623
申请日：2005-03-16
申请人： Masaaki Nikkuni
发明人： Masaaki Nikkuni
IPC分类号： G01R21/00
CPC分类号： G08C19/00
摘要： The present invention intends to provide a small, low-cost, convenient transmitter system. The transmitter system detects physical quantities, converts the physical quantities into electrical signals, and allows the electrical signals to be transmitted to a load through a transmission line, comprising a main output circuit to be connected to a main instrumentation power supply and at least one subordinate output circuit to be connected to a subordinate instrumentation power supply.
摘要翻译： 本发明旨在提供一种小型，低成本，方便的发射机系统。 发射机系统检测物理量，将物理量转换为电信号，并允许电信号通过传输线传输到负载，包括要连接到主仪表电源和至少一个从属的主输出电路 输出电路连接到下级仪表电源。
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4.发明授权Frequency measuring circuit and resonant pressure sensor type differential pressure/pressure transmitter using the frequency measuring unit 有权频率测量电路和谐振压力传感器型差压/压力变送器采用频率测量单元公开(公告)号：US06979995B2
公开(公告)日：2005-12-27
申请号：US10654974
申请日：2003-09-05
CPC分类号： G01R23/10 , G01L9/0008 , G04F10/04 , G04F10/105 , H03K5/06
摘要： A time difference signal having a pulse width corresponding to the time difference between an output of a resonant pressure sensor and a reference clock is prepared. The pulse width of the time difference signal is expanded by a given magnification. Based on a count value obtained by counting the reference clock during the expanded pulse width and a count value obtained by counting the reference clock during one cycle of the output of the resonant pressure sensor or a period which is integer times as long as the one cycle, the output frequency of the resonant pressure sensor is obtained. It is possible to obtain the fast processing and the high resolution without increasing the frequency of the reference clock.
摘要翻译： 准备具有对应于谐振压力传感器的输出与基准时钟之间的时间差的脉冲宽度的时间差信号。 时间差信号的脉冲宽度以给定的放大率扩大。 基于通过对扩展脉冲宽度期间的基准时钟进行计数而获得的计数值，以及通过对共振压力传感器的输出的一个周期期间的基准时钟进行计数而得到的计数值，或者是一个周期的整数倍的周期 得到共振压力传感器的输出频率。 可以在不增加参考时钟的频率的情况下获得快速处理和高分辨率。
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公开(公告)号：US20050216217A1
公开(公告)日：2005-09-29
申请号：US11080623
申请日：2005-03-16
申请人： Masaaki Nikkuni
发明人： Masaaki Nikkuni
CPC分类号： G08C19/00
摘要： The present invention intends to provide a small, low-cost, convenient transmitter system. The transmitter system detects physical quantities, converts the physical quantities into electrical signals, and allows the electrical signals to be transmitted to a load through a transmission line, comprising a main output circuit to be connected to a main instrumentation power supply and at least one subordinate output circuit to be connected to a subordinate instrumentation power supply.
摘要翻译： 本发明旨在提供一种小型，低成本，方便的发射机系统。 发射机系统检测物理量，将物理量转换为电信号，并允许电信号通过传输线传输到负载，包括要连接到主仪表电源和至少一个从属的主输出电路 输出电路连接到下级仪表电源。
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