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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Stevens; Michael T.
Address:
Aloha, OR
No. of patents:
13
Patents:












Patent Number Title Of Patent Date Issued
8264701 Printing graphics with transparency on a postscript enabled image forming device September 11, 2012
What is disclosed is a novel system and method for emulating transparency in a PostScript-enabled image forming device, such as a PostScript-enabled print device. The present system and method uses Adobe's DeviceN color space to support transparency printing on PostScript-enabled dev
8149454 Color printing April 3, 2012
A method of operating a color printer including using a first set of one-dimensional TRCs or a second set of one-dimensional TRCs with a single set of color tables.
8121402 Color control of PDL CIE color February 21, 2012
A method for processing image data includes receiving image data including an assigned color space, comparing the assigned color space of the image data to a known color space, and processing the image data using the known color space in place of the assigned color space if the diffe
7936917 Systems and methods for image data encoding and decoding May 3, 2011
Image processing systems and methods are presented for encoding 8-bit color image data to 4-bit data using an encoding table by assigning a pixel type value to each 8-bit pixel according to a 9.times.3 tiling pattern with 9 unique pixel type values in each 3.times.3 window of the 9.t
7920292 Database system for processing image data for consistent color printing April 5, 2011
Present systems and methods enable digital color printers to consistently print color output from computer generated image data that includes spot color definitions. Colors that are defined as spot colors can be separated from colors that are defined as combinations of process colors.
7864366 Method and system for improved space filling interpolation January 4, 2011
Document processing systems and methods are presented for transforming color image data from an input color space to output color space using space filling interpolation to mitigate loss of color information at the corners of color gamuts. An initial interpolation of the input color
7652599 Range normalization for entropy reduction arithmetic encoding/decoding January 26, 2010
What is disclosed is a novel system and method for performing renormalization in a data entropy reduction process of an image in a compression path. An accumulator is used for one of arithmetic encoding and decoding according to an arithmetic coding process and a number of most signi
7616346 Processing image data for consistent color printing November 10, 2009
Present systems and methods enable digital color printers to consistently print color output from computer generated image data that includes spot color definitions. Colors that are defined as spot colors can be separated from colors that are defined as combinations of process colors.
7310165 Dynamic color rendering dictionaries December 18, 2007
Dynamic Color Render Dictionaries are provided to automatically switch color rendering behavior between object types. The implementation resides entirely within the Color Render Dictionary (CRD) and require no changes to the state of the Postscript interpreter (There are no required "C"
7274488 Detecting graphics in color rendering dictionaries September 25, 2007
Differentiating between image and graphic objects contained within a Color Rendering Dictionary improves printing efficiency. The differentiation between image and graphic objects is accomplished by monitoring the sequence in which Color Rendering Dictionary procedures are executed.
7209145 Color device profile having a buffered look-up table April 24, 2007
A color device profile including a buffered color look-up table having outermost nodes that replicate nodes of an inner portion that are closest to the outermost nodes, and input tonal reproduction curves having a range that is smaller than an input range associated with the buffered
7130423 Threshold encoding of frame buffers October 31, 2006
A method for encoding and decoding frames by generating a key bitstream such that the key bitstream never has to be stored is disclosed. The method consists of a key generation algorithm using a threshold matrix to generate a key that is very similar to original bitmap data. The key
6987588 Text and image quality enhancement January 17, 2006
A method to compensate for dot placement errors includes receiving image data comprising a plurality of pixels, each having at least two states, a first corresponding to depositing no ink and a second corresponding to depositing ink; identifying a stray pixel pattern within the image dat










 
 
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