Steven R Mccoy

US Patent:

8054907, Nov 8, 2011

Filed:

Aug 9, 2005

Appl. No.:

11/200258

Inventors:

John David Hamre - Plymouth MN, US
Peng Li - Palo Alto CA, US
Jan Brian Wilstrup - Mounds View MN, US
Steven John McCoy - Eden Prairie MN, US

International Classification:

H04L 25/49

US Classification:

375293, 375348, 375354, 375355, 375357, 375371

Abstract:

A method and system for removing the effect of intersymbol interference (ISI) from a data record indicating times of logic level transitions exhibited by a data signal that has been distorted by ISI exhibited by a system having a particular step response may perform the following acts. The data record may be received, and a transition from within the data may be selected record for removal of ISI. Preceding transitions within the data record are then inspected. A time defect is obtained, based at least in part upon the inspected preceding transitions. Finally, the data record is adjusted, based upon the time defect, to indicate a new time of transition for the selected transition, thereby removing the effect of ISI for the selected transition.

US Patent:

8315058, Nov 20, 2012

Filed:

Sep 14, 2010

Appl. No.:

12/807801

Inventors:

Daniel Ronald Schwartz - Hopkins MN, US
Steven John McCoy - Eden Prairie MN, US
Jason Harold Rud - Mayer MN, US

Assignee:

Rosemount Inc. - Eden Prairie MN

International Classification:

H05K 7/00

US Classification:

361728, 361752, 361809

Abstract:

A display assembly includes a transparent cover piece, a display shroud having a contact structure arranged to face the transparent cover piece, an interface subassembly mounted on the display shroud, an electronics board shroud having a support member and a connection feature, and a biasing member operably engaged between the display shroud and the electronics board shroud. The connection feature mechanically connects the electronics board shroud to the display shroud while permitting axial displacement and rotation therebetween. The biasing member rests on the support member of the electronics board shroud, and the biasing member is configured to urge the contact structure of the display shroud into physical contact with the transparent cover piece. The interface subassembly includes a display circuit for providing a digital display and a touch circuit for providing touch actuation at or near the digital display through the transparent cover piece.

US Patent:

8334788, Dec 18, 2012

Filed:

Mar 4, 2010

Appl. No.:

12/717290

Inventors:

George C. Hausler - Maple Grove MN, US
Steven J. McCoy - Eden Prairie MN, US

Assignee:

Rosemount Inc. - Eden Prairie MN

International Classification:

G08B 23/00
G08C 15/06

US Classification:

34087002, 34087001

Abstract:

A process variable transmitter for use in measuring a process variable of an industrial process includes a display. The transmitter comprises a housing, a process variable sensor configured to sense the process variable of the industrial process, transmitter circuitry coupled to the process variable sensor configured to provide a transmitter output and a connection member in the housing configured to couple to the transmitter circuitry. A first rotatable connector on the connection member includes a plurality of first conductors. A module includes a second rotatable connector having a plurality of second conductors. The plurality of first and second conductors are configured to electrically connect together.

US Patent:

20110010120, Jan 13, 2011

Filed:

Jul 8, 2010

Appl. No.:

12/832341

Inventors:

David L. Wehrs - Eden Prairie MN, US
Gregory J. LeCuyer - Eden Prairie MN, US
Jessica Lo - Robbinsdale MN, US
Steven J. McCoy - Eden Prairie MN, US
Brian L. Westfield - Victoria MN, US

International Classification:

G01R 19/00
G01R 27/02
G06F 19/00

US Classification:

702 65, 702 64

Abstract:

A two-wire process variable transmitter for use in an industrial process, including a process variable sensor configured to sense a process variable of a fluid of the industrial process. Output circuitry is configured to provide an output on a two-wire process control loop which is related to the sensed process variable. Loop current measurement circuitry measures a loop current flowing through the two-wire process control loop and terminal voltage measurement circuitry measures a voltage related to a terminal voltage of the process variable transmitter. The terminal voltage can be a voltage measured across an electrical connection of the two-wire process variable transmitter to the two-wire process control loop. Input circuitry is configured to receive a diagnostic command from the two-wire process control loop. A microprocessor configured to perform loop diagnostics on the two-wire process control loop based upon the measured loop current and terminal voltage in response to receipt of a diagnostic command from the two-wire process control loop.

US Patent:

57105529, Jan 20, 1998

Filed:

Jun 6, 1995

Appl. No.:

8/472695

Inventors:

Steven J. McCoy - Eden Prairie MN
Mark S. Schumacher - Minneapolis MN
John A. Kielb - Eden Prairie MN
Donald F. Palan - Chaska MN
Grant B. Edwards - Blaine MN
Randy J. Longsdorf - Chaska MN
James E. Templin - Burnsville MN

Assignee:

Rosemount Inc. - Eden Prairie MN

International Classification:

G08C 1916

US Classification:

34087021

Abstract:

A barrier device threadably mounts to a cabling aperture on a field mounted transmitter. The field mounted transmitter receives and transmits signals, and is wholly powered by a current loop circuit. The barrier device has a conductive housing with at least a first and a second aperture and a pair of conductors passing through the first aperture of the barrier device, for connecting to a terminal block in the transmitter. A pair of signal terminals, preferably as ring tongue lug, is mounted in the second aperture of the barrier device. The signal terminals are connectable to a handheld communicator, which is used to calibrate, monitor and test the transmitter. A barrier circuit is mounted in the housing and is electrically connected between the signal terminals and the conductors. Signals from the communicator access the terminal block through the barrier circuit, and the barrier circuit limits the power available at the signal terminals. One embodiment of the barrier device has a third aperture directly across from the first aperture.

US Patent:

20170089856, Mar 30, 2017

Filed:

Sep 30, 2015

Appl. No.:

14/871884

Inventors:

- Shakopee MN, US
Steven John McCoy - Eden Prairie MN, US

International Classification:

G01N 27/22
G01D 11/24

Abstract:

A process variable transmitter for use in an industrial process includes a housing having a cavity formed therein. The housing has a barrier which divides the cavity into first and second cavities. Measurement circuitry in the first cavity is configured to measure a process variable of the industrial process. A terminal block assembly is located in the second circuitry. A moisture sensor has an electrical characteristic which changes based upon the presence of moisture in the second cavity.

US Patent:

20160381822, Dec 29, 2016

Filed:

Jun 29, 2015

Appl. No.:

14/753119

Inventors:

- Shakopee MN, US
Steven John McCoy - Eden Prairie MN, US
Christopher Lee Eriksen - St. Paul MN, US
Jeffrey Alan Cota - Rosemount MN, US

International Classification:

H05K 5/06
H05K 7/14
H05K 5/00

Abstract:

A process variable transmitter for use in an industrial process includes a housing having a cavity formed therein. The housing has a barrier which divides the cavity into first and second cavities. Preferably, measurement circuitry in the first cavity is configured to measure a process variable of the industrial process. A terminal block assembly is positioned in the second cavity. The terminal block assembly forms a seal with the housing thereby forming a third cavity between the barrier and a circuit board of the terminal block assembly.

US Patent:

20160291579, Oct 6, 2016

Filed:

Mar 30, 2015

Appl. No.:

14/672641

Inventors:

- Shakopee MN, US
Robert Ernest LaRoche - Shakopee MN, US
Steven J. McCoy - Eden Prairie MN, US

International Classification:

G05B 19/414

Abstract:

A process transmitter includes device circuitry that generates values that are to be conveyed on a current loop. A series control transistor is in series between the current loop and the device circuitry and a saturation prevention circuit prevents the series control transistor from entering saturation.