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| Number | Title | Issue Date |
| 7545402 | Printer thermal response calibration system Techniques are disclosed herein for estimating parameters of a model of a thermal print head for use in performing thermal history control. In particular, techniques are disclosed for use in conjunction with a thermal print head having a plurality of print head elem... | 06/09/2009 |
| 7545401 | Method and apparatus for controlling the uniformity of print density of a thermal print head array A method for controlling the print density of individual heating elements of a thermal print head array determines respective energy values for each heating element in response to image pixel data to be printed, multiplies determined energy values by a respective pr... | 06/09/2009 |
| 7466328 | Thermal printing device with an improved image registration, method for printing an image using said printing device and system for printing an image A printing device that includes a platen for supporting an imaging member during a printing operation and at least one print head subassembly for direct thermal printing on the imaging member. The print head subassembly is configured to be movable independently of t... | 12/16/2008 |
| 7411600 | Thermal printing device, method for printing an image using said printing device and system for printing an image A printing device that includes a platen for supporting an imaging member during a printing operation and at least one print head subassembly for direct thermal printing on the imaging member. The print head subassembly can be configured to be movable independently ... | 08/12/2008 |
| 7373011 | Density-dependent sharpening A sharpening filter is disclosed for performing density-dependent sharpening on digital images. In one embodiment, a digital image to be sharpened is decomposed into a plurality of high-pass versions of the image at different resolutions. These high-pass images are ... | 05/13/2008 |
| 7372476 | Thermal printing device, method for printing an image using said printing device and system for printing an image A printing device that includes a platen for supporting an imaging member during a printing operation and at least one print head subassembly for direct thermal printing on the imaging member. The print head subassembly is configured to be movable independently of t... | 05/13/2008 |
| 7369145 | Method and apparatus for controlling the uniformity of print density of a thermal print head array A method for controlling the print density of individual heating elements of a thermal print head array determines respective energy values for each heating element in response to image pixel data to be printed, multiplies determined energy values by a respective pr... | 05/06/2008 |
