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US 7,444,110 B2Granted
Determining a media feature
AssigneeHewlett-Packard Development Company, L.P.
InventorJon Johnson
Life of this patent
Estimating the term…
Abstract
A method for determining a media feature includes directing light toward a media path and a reflector. The reflector converges the light on a light detector. Intensity data is collected from the light detector and analyzed to determine the media feature.
Claims10
A media feature sensing apparatus,
- a parabolic emitter having a first parabolic reflector positioned and aimed to direct a light beam across at least a portion of a width of a media path;
- a parabolic detector having a second parabolic reflector positioned opposite the emitter such that the media path passes between the first and second parabolic reflectors;
- a computer readable medium having instructions for collecting intensity data from the detector and analyzing the intensity data to identify a feature of the media;
- and
- a processor for executing the instructions.
2 more elements
A media feature sensing apparatus,
- a parabolic emitter operable to direct light across a media path, the beam being directed from a first side of the media path and spanning at least a portion of a width of a media path, the parabolic emitter including a first parabolic reflector;
- a parabolic detector configured to detect an intensity of the light from a second side of the media path opposite the first side, the parabolic detector including a second parabolic reflector;
- a computer readable medium having instructions for collecting intensity data from the detector and analyzing the intensity data to identify a media feature;
- and
- a processor for executing the instructions.
2 more elements
Dependencies are inferred from the claim text.