Robert J Darling

US Patent:

6847036, Jan 25, 2005

Filed:

Oct 6, 1999

Appl. No.:

09/744360

Inventors:

Robert Bruce Darling - Seattle WA, US
Adi A. Scheidemann - Seattle WA, US
Frank J. Schumacher IV - Fall City WA, US
Patrick L. Jones - Seattle WA, US

Assignee:

University of Washington - Seattle WA

International Classification:

H01J 3704

US Classification:

250291, 250397, 250396 R

Abstract:

A charged particle beam detection system () that includes a Faraday cup detector array (FCDA) for position-sensitive charged particle beam detection is described. The FCDA is combined with an electronic multiplexing unit (MUX) () that allows collecting and intgrating the charge deposited in the array, and simultaneously reading out the same. The duty cycle for collecting the ions is greater than 98%. This multiplexing () is achieved by collecting the charge with a large number of small and electronically decoupled Faraday cups. Because Faraday cups collect the charge independent of their charge state, each cup is both a collector and an integrator. The ability of the Faraday cup to integrate the charge, in combination with the electronic multiplexing unit (), which reads out and empties the cups quickly compared to the charge integration time, provides the almost perfect duty cycle for this position-sensitive charged particle detector (). The device () measures further absolute ion currents, has a wide dynamic range from 1. 7 pA to 1. 2 μA with a crosstalk of less than 750:1.

US Patent:

7282709, Oct 16, 2007

Filed:

Jun 30, 2003

Appl. No.:

10/611327

Inventors:

Robert Bruce Darling - Seattle WA, US
Adi A. Scheidemann - Seattle WA, US
Patrick L. Jones - Seattle WA, US

Assignee:

University of Washington - Seattle WA

International Classification:

H01J 40/00

US Classification:

250299, 250281, 250282, 250283, 250300, 250397, 250398, 250396 R

Abstract:

A charged particle beam detection system that includes a Faraday cup detector array (FCDA) for position-sensitive charged particle beam detection is described. The FCDA is combined with an electronic multiplexing unit (MUX) that allows collecting and integrating the charge deposited in the array, and simultaneously reading out the same. The duty cycle for collecting the ions is greater than 98%. This multiplexing is achieved by collecting the charge with a large number of small and electronically decoupled Faraday cups. Because Faraday cups collect the charge independent of their charge state, each cup is both a collector and an integrator. The ability of the Faraday cup to integrate the charge, in combination with the electronic multiplexing unit, which reads out and empties the cups quickly compared to the charge integration time, provides the almost perfect duty cycle for this position-sensitive charged particle detector. The device measures further absolute ion currents, has a wide dynamic range from 1. 7 pA to 1. 2 μA with a crosstalk of less than 750:1.

US Patent:

58587993, Jan 12, 1999

Filed:

Oct 25, 1996

Appl. No.:

8/738445

Inventors:

Sinclair S. Yee - Seattle WA
Chuck C. Jung - Lynnwood WA
Stevan B. Saban - Snohomish WA
Robert B. Darling - Lake Forest Park WA

Assignee:

University of Washington - Seattle WA

International Classification:

G01N 2155

US Classification:

436164

Abstract:

This disclosure describes new methods and devices for sensing redox-active analytes in solution. The invention combines a surface plasmon resonance (SPR) sensor and a chemical electrode sensor. A conducting layer which supports SPR is attached to a voltage source. The voltage source is also connected to a reference electrode, which is in the aqueous solution with the SPR sensor. As the voltage is varied, the analytes undergo oxidation and reduction at the surface of the conducting film. The current is measured, just as it would be in a standard chemical electrode, with current peaks appearing at different potentials indicating different ions in the solution. Unlike a standard chemical electrode, the surface of the conducting film is also used to excite a surface plasmon wave (SPW). The SPW provides new information which is not available from any standard chemical electrode, such as the effective index of refraction at the surface of the conducting film as the analytes are being oxidized and/or reduced. This additional source of information can be used to minimize the effects of overlapping stripping peaks and interspecies compound formation as well as determine the thickness of surface layers during measurements.

US Patent:

20230023344, Jan 26, 2023

Filed:

Jul 15, 2022

Appl. No.:

17/866397

Inventors:

- Menlo Park CA, US
Doruk Senkal - Kirkland WA, US
Anton Andreevich Shkel - Aliso Viejo CA, US
Robert Bruce Darling - Lake Forest Park WA, US
Andrew Heywood Turner - Sammamish WA, US
Wynn Dickinson Michael - Portland WA, US
Sean Diener - Bothell WA, US

International Classification:

A61B 5/00
A61B 5/087
A61B 5/091

Abstract:

A headset comprise a frame and a vibration sensor coupled to the frame. The vibration sensor may be located in a nosepad of the frame, and configured to measure tissue vibrations of a user when the headset of worn by the user. A controller receives a signal corresponding to the measured vibration data from the vibration sensor, and analyzes the received signal to infer a sequence of states of the received signal, such as a sequence of respiratory states. The controller further determines a value of a health metric based upon the inferred sequence of states, e.g., a respiratory rate of the user, and performs an action using the determined value of the health metric.

US Patent:

20200029185, Jan 23, 2020

Filed:

Mar 19, 2019

Appl. No.:

16/358563

Inventors:

- Seattle WA, US
Robert Bruce Darling - Lake Forest Park WA, US

International Classification:

H04W 4/38

Abstract:

The present invention is directed towards devices, systems, and methods for remotely acquiring stormwater data. A sensor device includes sensors and a transceiver. The sensors generate stormwater data in response to a fluid communication with (or exposure to) stormwater flowing through a stormwater drainage (such as a pipe). The transceiver provides the stormwater data to another sensor device included within a self-healing mesh network including similar sensor devices. The transceiver receives other stormwater data from still other sensor devices included in the mesh network. The sensor device additionally include a processor device, a memory device, a rechargeable battery, and a global positioning device. The components may be integrated on an inner surface of a compression ring that is positionable within the stormwater pipe. The mesh network includes a controller node for receiving the stormwater data from the sensor devices and relaying the stormwater to a remote computing device.

US Patent:

20190235130, Aug 1, 2019

Filed:

Apr 12, 2019

Appl. No.:

16/383529

Inventors:

- Seattle WA, US
Robert Bruce Darling - Lake Forest Park WA, US

International Classification:

G01W 1/14
E03F 1/00

Abstract:

Distributed systems and methods for the automatic monitoring and reporting of data relating to the chemistry and flow of stormwater (i.e. stormwater data) are presented. Multiple fluid sensor devices are exposed to stormwater via positioning the sensor devices in locations of interest. The sensor devices are arranged in self-healing mesh networks. The sensor devices are enabled to acquire stormwater data indicating various fluid properties that are desired to be monitored. A sensor device is further enabled to transmit its acquired stormwater data, either directly or indirectly, to one or more remote computing devices that is hosting a stormwater monitoring application (SMA). The SMA is enabled to process and analyze the stormwater data. The SMA generates measurements and reports based on the processed and analyzed stormwater data.

US Patent:

20170294101, Oct 12, 2017

Filed:

Apr 5, 2017

Appl. No.:

15/480084

Inventors:

- Seattle WA, US
Robert Bruce Darling - Lake Forest Park WA, US

International Classification:

G08B 21/18

Abstract:

Distributed systems and methods for the automatic monitoring and reporting of data relating to the chemistry and flow of stormwater (i.e. stormwater data) are presented. Multiple fluid sensor devices are exposed to stormwater via positioning the sensor devices in locations of interest. The sensor devices are arranged in self-healing mesh networks. The sensor devices are enabled to acquire stormwater data indicating various fluid properties that are desired to be monitored. A sensor device is further enabled to transmit its acquired stormwater data, either directly or indirectly, to one or more remote computing devices that is hosting a stormwater monitoring application (SMA). The SMA is enabled to process and analyze the stormwater data. The SMA generates measurements and reports based on the processed and analyzed stormwater data.

US Patent:

20170294102, Oct 12, 2017

Filed:

Apr 10, 2017

Appl. No.:

15/483894

Inventors:

- Seattle WA, US
Robert Bruce Darling - Lake Forest Park WA, US

International Classification:

G08B 21/18
H04W 4/00

Abstract:

The present invention is directed towards devices, systems, and methods for remotely acquiring stormwater data. A sensor device includes sensors and a transceiver. The sensors generate stormwater data in response to a fluid communication with (or exposure to) stormwater flowing through a stormwater drainage (such as a pipe). The transceiver provides the stormwater data to another sensor device included within a self-healing mesh network including similar sensor devices. The transceiver receives other stormwater data from still other sensor devices included in the mesh network. The sensor device additionally include a processor device, a memory device, a rechargeable battery, and a global positioning device. The components may be integrated on an inner surface of a compression ring that is positionable within the stormwater pipe. The mesh network includes a controller node for receiving the stormwater data from the sensor devices and relaying the stormwater to a remote computing device.