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    MULTIPLE DIE INDUSTRIAL PROCESS CONTROL TRANSMITTER
    1.
    发明申请
    MULTIPLE DIE INDUSTRIAL PROCESS CONTROL TRANSMITTER 审中-公开
    多功能工业过程控制变送器

    公开(公告)号：WO0214964A3

    公开(公告)日：2002-08-29

    申请号：PCT/US0121877

    申请日：2001-07-12

    Applicant: ROSEMOUNT INC

    Inventor： ROPER WESTON R ,  TYSON DAVID G ,  WESTFIELD BRIAN L ,  GABOURY MICHAEL J

    IPC: G08C19/02 ,  G05B19/042 ,  G05B19/414 ,  H04Q9/00

    CPC classification number: G05B19/4142 ,  G05B19/0423 ,  G05B2219/31121 ,  G05B2219/31126 ,  G05B2219/33197 ,  G05B2219/34309

    Abstract: A two-wire industrial process control transmitter includes a sensor (14), at least two integrated circuits (70, 72), and a level shift circuit (48). The first integrated circuit (70) contains the analog measurement circuit that includes a sensor detection circuit (16) and the analog portion (44) of a digital-to-analog convertor. The second integrated circuit (72) contains the digital system circuit that includes a modem (78) and the digital portion (46) of the analog-to-digital convertor. The first and second Ics may be powered at different voltage levels (Vdda, Vddd) to maximize the power of the analog circuit and improve resolution. Alternatively, the Ics may be powered at the same voltage level (Vddd), but the digital circuits are divided among several stacked dies (120, 122) to minimize the voltage for each digital circuit. In either case, the level shifting circuit (48) shifts the voltage level between the analog and digital circuits.

    Abstract translation: 一个双线工业过程控制发射机包括传感器（14），至少两个集成电路（70,72）和电平移位电路（48）。 第一集成电路（70）包含模拟测量电路，其包括传感器检测电路（16）和数模转换器的模拟部分（44）。 第二集成电路（72）包含数字系统电路，其包括调制解调器（78）和模拟 - 数字转换器的数字部分（46）。 第一和第二IC可以以不同的电压电平（Vdda，Vddd）供电，以最大化模拟电路的功率并提高分辨率。 或者，Ics可以以相同的电压电平（Vddd）供电，但是数字电路被划分成几个堆叠的管芯（120,122），以使每个数字电路的电压最小化。 在任一情况下，电平移位电路（48）使模拟和数字电路之间的电压电平移位。

    MULTIPLE DIE INDUSTRIAL PROCESS CONTROL TRANSMITTER
    3.
    发明申请
    MULTIPLE DIE INDUSTRIAL PROCESS CONTROL TRANSMITTER 审中-公开
    多功能工业过程控制变送器

    公开(公告)号：WO0214964B1

    公开(公告)日：2003-02-20

    申请号：PCT/US0121877

    申请日：2001-07-12

    Applicant: ROSEMOUNT INC

    Inventor： ROPER WESTON R ,  TYSON DAVID G ,  WESTFIELD BRIAN L ,  GABOURY MICHAEL J

    IPC: G08C19/02 ,  G05B19/042 ,  G05B19/414 ,  H04Q9/00

    CPC classification number: G05B19/4142 ,  G05B19/0423 ,  G05B2219/31121 ,  G05B2219/31126 ,  G05B2219/33197 ,  G05B2219/34309

    Abstract: A two-wire industrial process control transmitter includes a sensor (14), at least two integrated circuits (70, 72), and a level shift circuit (48). The first integrated circuit (70) contains the analog measurement circuit that includes a sensor detection circuit (16) and the analog portion (44) of a digital-to-analog convertor. The second integrated circuit (72) contains the digital system circuit that includes a modem (78) and the digital portion (46) of the analog-to-digital convertor. The first and second Ics may be powered at different voltage levels (Vdda, Vddd) to maximize the power of the analog circuit and improve resolution. Alternatively, the Ics may be powered at the same voltage level (Vddd), but the digital circuits are divided among several stacked dies (120, 122) to minimize the voltage for each digital circuit. In either case, the level shifting circuit (48) shifts the voltage level between the analog and digital circuits.

    Abstract translation: 一个双线工业过程控制发射机包括传感器（14），至少两个集成电路（70,72）和电平移位电路（48）。 第一集成电路（70）包含模拟测量电路，其包括传感器检测电路（16）和数模转换器的模拟部分（44）。 第二集成电路（72）包含数字系统电路，其包括调制解调器（78）和模拟 - 数字转换器的数字部分（46）。 第一和第二IC可以以不同的电压电平（Vdda，Vddd）供电，以最大化模拟电路的功率并提高分辨率。 或者，Ics可以以相同的电压电平（Vddd）供电，但是数字电路被划分成几个堆叠的管芯（120,122），以使每个数字电路的电压最小化。 在任一情况下，电平移位电路（48）使模拟和数字电路之间的电压电平移位。

    RF ADAPTER FOR FIELD DEVICE WITH LOOP CURRENT BYPASS
    4.
    发明专利
    RF ADAPTER FOR FIELD DEVICE WITH LOOP CURRENT BYPASS 未知

    公开(公告)号：CA2726534A1

    公开(公告)日：2009-12-23

    申请号：CA2726534

    申请日：2009-06-17

    Applicant: ROSEMOUNT INC

    Inventor： KIELB JOHN A ,  WESTFIELD BRIAN L

    IPC: H04L12/40 ,  G05B19/418

    Abstract: A wireless adapter for use with a two-wire process control loop (22) is configured to couple to a process field device (12) in an industrial process control system. The wireless adapter (30) is coupled to the two-wire process control loop (22) and provides wireless communication to the process field device (12). The adapter (30) includes first and second loop terminals configured to couple in series with the two-wire process control loop (22). Wireless communication circuitry (155) is coupled to the first and second loop terminals and is adapted to provide wireless communication to the process field device (12). Loop current bypass circuitry (164) is electrically connected between the first and second loop terminals and is configured to provide a loop current path therebetween in response to an open circuit in wireless communication circuitry (155).

    Field transmitter built-in test equipment
    5.
    发明专利
    Field transmitter built-in test equipment 未知

    公开(公告)号：SG45362A1

    公开(公告)日：1998-01-16

    申请号：SG1996004649

    申请日：1994-08-15

    Applicant: ROSEMOUNT INC

    Inventor： WESTFIELD BRIAN L ,  LANCTOT JANE B ,  VOEGELE KEVIN D

    IPC: G01R27/14 ,  G01R31/28

    Abstract: An improved error detection for microprocessor-based transmitters in two-wire process control loops operating in the process control industry. In particular, techniques are shown which are useful in solving malfunctions or failures of microprocessor-based transmitters. When the transmitter is energized, the impedance of the process loop cabling is resolved and stored, displayed or transmitted as desired. The loop impedance is used to calculate potential of a power supply used to power the control loop. This information is used in testing the two-wire loop.

    Field transmitter built-in test equipment
    6.
    发明专利
    Field transmitter built-in test equipment 未知

    公开(公告)号：AU7526694A

    公开(公告)日：1995-04-03

    申请号：AU7526694

    申请日：1994-08-15

    Applicant: ROSEMOUNT INC

    Inventor： VOEGELE KEVIN D ,  LANCTOT JANE B ,  WESTFIELD BRIAN L

    IPC: G01R27/14 ,  G01R31/28

    Abstract: An improved error detection for microprocessor-based transmitters in two-wire process control loops operating in the process control industry. In particular, techniques are shown which are useful in solving malfunctions or failures of microprocessor-based transmitters. When the transmitter is energized, the impedance of the process loop cabling is resolved and stored, displayed or transmitted as desired. The loop impedance is used to calculate potential of a power supply used to power the control loop. This information is used in testing the two-wire loop.

    7.
    发明专利
    未知

    公开(公告)号：BRPI0512605A

    公开(公告)日：2008-03-25

    申请号：BRPI0512605

    申请日：2005-06-21

    Applicant: ROSEMOUNT INC

    Inventor： KARSCHNIA ROBERT J ,  WILLCOX CHARLES R ,  BRODEN DAVID A ,  WESTFIELD BRIAN L ,  ORTH KELLY M

    IPC: G05B19/418 ,  G06F13/14

    Abstract: A field device for use in an industrial process control or monitoring system connects to a two-wire process control loop. The loop carries data and provides power to the field device. RF circuitry in the field device is provided for radio frequency communication. A power supply powers the RF circuitry using power received from the two-wire process control loop.

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