Abstract: A gas sensing leak mitigation unit for a gas system includes a gas sensing element, at least one onboard relay, and at least one microcontroller. The at least one microcontroller is configured to receive a signal from the gas sensing element and to determine if the signal from the gas sensing element is above a first predetermined threshold level. The at least one microcontroller is further configured to control the energizing and de-energizing of the onboard relays. A first onboard relay may be configured, when energized, to transmit power to a compressor of the gas system and, when de-energized, to break power to the compressor. A second onboard relay may be configured, when de-energized, to transmit power to a fan control. The gas sensing element, the at least one onboard relay and the at least one microcontroller may all be arranged within a common housing.

Abstract: An imaging device having an imaging unit for illuminating and capturing an original positioned on the imaging surface. The imaging surface is illuminated by an illumination system including a plurality of light sources that non-uniformly illuminates the imaging surface such that the corner areas of imaging surface is illuminated more than the non-corner areas of the imaging surface. In one embodiment the light sources are arranged around the perimeter of the imaging surface. In an alternate embodiment the light sources are located outside the field of view of a lens of the image capturing unit.

Abstract: An imaging device including a base and an enclosed chamber positioned on the base. The enclosed chamber has a scanning surface inclined with respect to the base, a reflecting member positioned opposite to the scanning surface and an imaging member adjacent the scanning surface and oriented towards the reflecting member. The imaging member is illuminated with a red, a green, a blue, and an additional color LED. In one embodiment the additional color is a color other than red, green, and blue. In an alternate embodiment the additional color is Ultraviolet (UV) or Infra-Red (IR).

Abstract: Scanning devices and method of use that permit the capture of high resolution images of an original that is illuminated by a light source that is located outside of the optical field of view of an image detector. In one aspect, the image detector may be a monochrome sensor that sequentially captures different color plane images of an original that is illuminated by different colors. The different color plane images may be processed to generate a full color copy of the original. Light and images may be directed through tapered optical waveguides to minimize the volume of the scanning device. The image detector may include a first associated waveguide while the light source may include a second associated waveguide.

Abstract: An illumination device for an image capture system according to one example embodiment includes an integrating light pipe having an input face and an output face. The integrating light pipe is positioned to receive light from a light source at the input face and transmit the light at the output face. A projection element is positioned to focus the light from the output face to a document plane to be imaged by an image sensor. A uniformity correction device is positioned to attenuate the light from the output face so that the light has a substantially uniform intensity at the image sensor and a less uniform intensity at the document plane than at the image sensor.

Abstract: A contact image scanner comprises a light source, pixel sensors generating a signal, a lens focusing reflected light onto the pixel sensors, a color matrix filter filtering the reflected light, and a signal processing circuit generating a digital image. The method provides pixel sensors for generating a signal in response to incident light, projects light from a light source onto a document in a sequential fashion, reflects the light onto the pixel sensors, filters the reflected light with a color matrix filter, and processes the signal to generate the digital image. With the method and apparatus, each scan line of the document is illuminated with white light only once. The pixel sensors corresponding to red, green, and blue colors of each pixel of the scan line read the pixel of the scan line substantially at the same time in a substantially overlapping manner in a scan line direction without overlapping in an orthogonal direction.

Abstract: An illumination device for an image capture system according to one example embodiment includes an integrating light pipe having an input face and an output face. The integrating light pipe is positioned to receive light from a light source at the input face and transmit the light at the output face. A projection element is positioned to focus the light from the output face to a document plane to be imaged by an image sensor. A uniformity correction device is positioned to attenuate the light from the output face so that the light has a substantially uniform intensity at the image sensor and a less uniform intensity at the document plane than at the image sensor.

Abstract: Imaging devices and methods that permit the capture of digital images of an original document sequentially illuminated by a plurality of light sources. In one aspect, a first digital image is captured using illumination from a first illumination angle, a second digital image is captured using illumination from a second illumination angle, and the first and second digital images are combined to obtain a composite digital image of the document. The obtained composite digital image is free of reflection artifacts corresponding to the first and second illumination angles.

Abstract: A method for providing image illumination calibration includes: generating a plurality of images of a calibration target at a plurality of exposure levels, each image of the plurality of images being represented by a total pixel area; identifying a plurality of zones of the total pixel area, each zone of the plurality of zones corresponding to a particular image of the plurality of images at a particular exposure level of the plurality of exposure levels, with each zone representing a pixel sub-area that excludes saturated pixels; combining the plurality of zones for the plurality of images of the calibration target to generate a final calibration image; and generating a shading table to correct the final calibration image to obtain a uniform image of the calibration target over the total pixel area, the shading table including gain and offset values associated with each pixel of the total pixel area.

Abstract: A scan bar for scanning a media sheet in an image scanning device and a method for scanning the media sheet in the image scanning device are disclosed. The scan bar comprises a sensor arrangement and a lens arrangement. The sensor arrangement comprises a first sensor region and a second sensor region. Light reflected from the media sheet is focused by the lens arrangement onto the sensor arrangement. Each of the first sensor region and the second sensor region is capable of generating image data corresponding to the media sheet from the focused light received from the lens arrangement for scanning the media sheet. The image data generated by the first sensor region is of relatively higher resolution than image data generated by the second sensor region.

Abstract: An imaging device having an imaging unit for illuminating and capturing an original positioned on the imaging surface. The imaging surface is illuminated by an illumination system including a plurality of light sources that non-uniformly illuminates the imaging surface such that the corner areas of imaging surface is illuminated more than the non-corner areas of the imaging surface. In one embodiment the light sources are arranged around the perimeter of the imaging surface. In an alternate embodiment the light sources are located outside the field of view of a lens of the image capturing unit.

Abstract: A method and apparatus are disclosed for scanning documents using a contact image scanner. The imaging apparatus comprises a light source for illuminating the document, a plurality of pixel sensors for generating a signal in response to light incident thereon, a lens for focusing light from the light source reflected from the document onto the plurality of pixel sensors, a color matrix filter disposed between the pixel sensors and the light reflected from the document, and a circuit for processing the signal from the plurality of pixel sensors to generate the digital image of the document.

Abstract: Scanning devices and method of use that permit the capture of high resolution images of an original that is illuminated by a light source that is located outside of the optical field of view of an image detector. In one aspect, the image detector may be a monochrome sensor that sequentially captures different color plane images of an original that is illuminated by different colors. The different color plane images may be processed to generate a full color copy of the original. Light and images may be directed through tapered optical waveguides to minimize the volume of the scanning device. The image detector may include a first associated waveguide while the light source may include a second associated waveguide.

Abstract: Scanning devices and method of use that permit the capture of high resolution images of an original that is illuminated by a light source that is located outside of the optical field of view of an image detector. In one aspect, the image detector may be a monochrome sensor that sequentially captures different color plane images of an original that is illuminated by different colors. The different color plane images may be processed to generate a full color copy of the original. Light and images may be directed through tapered optical waveguides to minimize the volume of the scanning device. The image detector may include a first associated waveguide while the light source may include a second associated waveguide.

Abstract: An all-in-one device including a printer and an image capture unit disposed substantially within a housing, the image capture unit including a transparent platen and capturing an image of a media sheet positioned against the platen. The platen is substantially vertically positioned along a front portion of the housing. The image capture unit may further include a lid that is movable relative to the platen between open and closed positions, and a video monitor integrated within an outer surface of the lid and sized to serve as a monitor for a computing device.

Abstract: A scan bar for scanning a media sheet in an image scanning device and a method for scanning the media sheet in the image scanning device are disclosed. The scan bar comprises a sensor arrangement and a lens arrangement. The sensor arrangement comprises a first sensor region and a second sensor region. Light reflected from the media sheet is focused by the lens arrangement onto the sensor arrangement. Each of the first sensor region and the second sensor region is capable of generating image data corresponding to the media sheet from the focused light received from the lens arrangement for scanning the media sheet. The image data generated by the first sensor region is of relatively higher resolution than image data generated by the second sensor region.

Abstract: A method for providing image enhancement with an imaging apparatus includes imaging a target a plurality of times to generate a corresponding plurality of image data sets; averaging the image data sets on a pixel-by-pixel basis to generate a final image data set corresponding to the target; and generating an output image of the target based on the final image data set.

Abstract: A method for providing image illumination calibration includes: generating a plurality of images of a calibration target at a plurality of exposure levels, each image of the plurality of images being represented by a total pixel area; identifying a plurality of zones of the total pixel area, each zone of the plurality of zones corresponding to a particular image of the plurality of images at a particular exposure level of the plurality of exposure levels, with each zone representing a pixel sub-area that excludes saturated pixels; combining the plurality of zones for the plurality of images of the calibration target to generate a final calibration image; and generating a shading table to correct the final calibration image to obtain a uniform image of the calibration target over the total pixel area, the shading table including gain and offset values associated with each pixel of the total pixel area.

Abstract: Imaging devices and methods that permit the capture of digital images of an original document sequentially illuminated by a plurality of light sources. In one aspect, a first digital image is captured using illumination from a first illumination angle, a second digital image is captured using illumination from a second illumination angle, and the first and second digital images are combined to obtain a composite digital image of the document. The obtained composite digital image is free of reflection artifacts corresponding to the first and second illumination angles.

Abstract: Scanning devices and method of use that permit the capture of high resolution images of an original that is illuminated by a light source that is located outside of the optical field of view of an image detector. In one aspect, the image detector may be a monochrome sensor that sequentially captures different color plane images of an original that is illuminated by different colors. The different color plane images may be processed to generate a full color copy of the original. Light and images may be directed through tapered optical waveguides to minimize the volume of the scanning device. The image detector may include a first associated waveguide while the light source may include a second associated waveguide.