Hewlett-packard Development Company, L.p.

Caterpillar Inc.

Masoud K Zavarehi

David R Schricker

Grant K Garner

Steven J Simske

Matthew Donald Gaubatz

Malgorzata M Sturgill

Paul S Everest

Manish Giri

George H Corrigan

Chantelle Domingue

Matthew David Smith

Conrad G Grembowicz

Yang Liu

Joshua M Yu

Scott Grasley

David R Ingalls

Tod Woodford

Roshan B Baliga

William Mcconnell

According to an example, a microfluidic apparatus may include a fluid slot and a foyer that is in fluid communication with the fluid slot via a channel having a relatively smaller width than the foyer. The microfluidic apparatus may also include an electrical sensor to measure a change in an electrical field caused by a particle of interest in a fluid passing through the channel from the fluid slot to the foyer, an actuator to apply pressure onto fluid contained in the foyer, and a controller to receive the measured change in the electrical field from the electrical sensor, determine, from the received change in the electrical field, an electrical signature of the particle of interest, and control the actuator to control movement of the particle of interest based upon the determined electrical signature of the particle of interest.

Microfluidic apparatuses for fluid movement control

A method and apparatus to select from an image () of a first sample (), at least one region () digitally captured at a first resolution based upon how a counterfeit identification performance attribute of each region () digitally captured at the first resolution correlate to the counterfeit identification performance attribute of the region () digitally captured at a second resolution higher than the first resolution. The selected region () is used to determine whether the image () on a second sample is a counterfeit.

Region selection for counterfeit determinations

Methods, and apparatus for performing methods, for classifying an image. Methods include determining a corresponding set of metrics for each region of two or more regions of a pattern of regions of an image, and classifying the image in response to at least the corresponding set of metrics for each of the two or more regions of the pattern of regions.

Classifying images

A system and method is disclosed for harmonizing calibration of audio between a plurality of networked conference rooms to enable each networked conference room to have substantially similar audio characteristics by adjusting speaker gain output of an audio signal sent from a calibration location on a network and tuning microphone response received at a calibration location to a calibrated audio source.

System and method for harmonizing calibration of audio between networked conference rooms

Various embodiments for image pixel transformation are disclosed.

Image pixel transformation

A method of compensating in a projection system includes measuring a characteristic of ambient light incident on a screen; determining a gradient of the characteristic; and determining an adjustment to be applied to light to be projected using the gradient.

Determining an adjustment

Various embodiments for projection partitioning and aligning are disclosed.

Projection partitioning and aligning

Individual cylinder output deviations from a normal operating engine cylinder are detected via an analysis of crank shaft speed fluctuations. In the detection phase, the engine is operated at a steady state low idle condition, and engine speed data is collected over a plurality of engine cycles. This data is then averaged, filtered and compared to expected engine speed data. A substantial deviation from the expected speed data in the region of crank shaft angles associated with an individual cylinder during its power stroke adjacent its top dead center position indicates a power level deviation in that cylinder. The magnitude of the power level deviation can then be assessed through a similar procedure where engine speed data is collected, averaged, filtered and compared to expected engine speed data when the engine is operating in a steady state rated condition.

Method and system for determining engine cylinder power level deviation from normal

An apparatus and method for detecting cylinder faults collects temperature data representative of temperatures of exhaust from the cylinder, estimates true temperatures of the exhaust as a function of the collected temperature data and at least one compensation factor, and determines deviations of the estimated true temperatures from at least one reference value. At least one severity symptom value is determined as a function of the deviations, and compared with at least one predetermined reference value for a known cylinder condition.

Apparatus and method to detect cylinder faults of internal combustion engines via exhaust temperature monitoring

A method and system for detecting torque of a reciprocating internal combustion engine, the internal combustion engine having at least one cylinder and a rotatable crankshaft. This method and system includes sensing rotational crankshaft speed for a multiple of designated crankshaft rotational positions over a predetermined number of cycles of rotation for each crankshaft position and determining an average crankshaft speed fluctuation for each crankshaft position and determining information representative of crankshaft kinetic energy variations due to each firing event and each compression event in the cylinder and then determining information representative of crankshaft torque as a function of the crankshaft kinetic energy variations and the average crankshaft speed and responsively producing a representative crankshaft torque signal.

Method and system for predicting torque from crank speed fluctuations in an internal combustion engine

A method and system for detecting absolute power loss in a cylinder for a reciprocating internal combustion engine, the internal combustion engine having at least one cylinder and a rotatable crankshaft. This method and system includes sensing rotational crankshaft speed for a number of designated crankshaft rotational positions over a predetermined number of cycles of rotation for each of the crankshaft positions and determining an average crankshaft speed fluctuation for each of the crankshaft positions and determining information representative of crankshaft kinetic energy variations due to each firing event or each firing event and compression event in said cylinder and determining information representative of an average fuel flow rate and determining information representative of power loss for the cylinder as a function of the crankshaft kinetic energy variations due to each firing event, the average crankshaft speed and the average fuel flow rate and responsively producing a representative power loss signal and determining information representative of crankshaft torque as a function of the crankshaft kinetic energy variations due to each firing event and compression event and the average crankshaft speed and responsively producing a representative crankshaft torque signal and determining information representative of absolute power loss for each cylinder.

Method and system for determining an absolute power loss condition in an internal combustion engine

A method for detecting a power loss condition of an internal combustion engine, the engine having at least one cylinder and a crank shaft, the method including the steps of sensing rotational crank shaft speed for a plurality of designated crank shaft rotational positions over a predetermined number of cycles of rotation, determining an average crank shaft speed fluctuation for each crank shaft position, determining information representative of crank shaft kinetic energy variation due to each firing event in the cylinder, and determining information representative of an average fuel flow rate. Information representative of a power loss for the cylinder is determined as a function of the crank shaft kinetic energy variation, average crank shaft speed and average fuel flow rate and a representative power loss signal is responsively produced.

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Albany, OR, United States of America

Masoud K Zavarehi