Hewlett-Packard Development Company, L.p.

Other

Hewlett-Packard Company

David G Bohan

Douglas G Keithley

Virginia K Capps

Nanette C Jensen

Marvin D Nelson

Eli S Saber

Linn James Kropf

Michael A Stauffer

Rakshit Sunil Kothari

An example involves identifying a first artifact in an image on a display, the first artifact caused by a first subpixel of a first pixel, determining a type of the first artifact based on a location of the first artifact relative to content of the image, and correcting the first artifact to remove the appearance of the first artifact from the display based on the type of the first artifact.

Correcting artifacts on a display

A system and method are provided for determining a light output of a light emitting diode (LED) in a scanner. The system includes a processor circuit to execute current control logic to obtain an optimum light output from the LED. The current control logic repeatedly applies increasing or decreasing currents to the LED until a saturation point is identified. This may be accomplished, for example, by comparing two measures of the light output of the LED for two different currents applied to the LED. When a difference equaling a predetermined threshold between the two measures is detected, then the saturation point is identified.

System and method for determining light source current

A document, including first and last images therein, is in storage. An image is optically scanned with a scanning mechanism. The optically scanned image is composed as a digital image. The document in storage is output such that the composed digital image is at a predetermined location between the first and the last images of the document.

Interleaved document rendering

An application program is provided access to a third party legacy data list not supported by the application program. A method embodiment includes supplying a plug-in module capable of providing an interface between the application program and the third party legacy data list. The application program sends a function call to the plug-in module. The plug-in module, in response to the function call, accesses the third party legacy data list and provides the application program information relating to the third party legacy data list.

Utilization of third party legacy data list

A system and method are provided for calibrating an output from a sensor array in a scanner. The system comprises a processor circuit having a processor and a memory. Stored on the memory and executable by the processor is the scanner calibration logic. The scanner calibration logic comprises logic for determining a minimum dark value for the sensor array, and logic for determining an optimum exposure time of a number of light sources associated with the sensor array. The scanner calibration logic also includes logic for determining a maximum white value for the sensor array at the exposure time, and logic for setting an analog offset based upon the minimum dark value. The scanner calibration logic further comprises logic for setting an analog gain associated with the sensor array based on a sensor output range from the minimum dark value to a maximum white value.

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Eagle, ID, United States of America

David G Bohan