| Patent Number |
Title Of Patent |
Date Issued |
| 7612911 |
Image processing device and image processing method for performing conversion of color image dat |
November 3, 2009 |
| The purpose of the image processing device is to convert color image data rapidly to data expressed by the dot on/off state. A plurality of adjacent pixels is grouped as a first type of block, and judgment of the dot on/off state performed by suitably using the error diffusion method |
| 7611219 |
Ejection control of quality-enhancing ink |
November 3, 2009 |
| A printing control method of generating dot data representing a state of dot formation at each pixel in a printed image represented by an given image data, by formation of dots in respective pixels with the at least one colored ink and the quality-enhancing ink available in the print |
| 7585041 |
Printing with limited types of dots |
September 8, 2009 |
| The present invention provides a printing control method of generating print data to be supplied to a print unit to print. The print unit comprises a print head having a plurality of nozzles and a plurality of ejection drive elements for ejecting an ink from the plurality of nozzles, |
| 7583404 |
Image processing apparatus for converting color data by referring to a reconstructed color conve |
September 1, 2009 |
| An image processing apparatus of the invention refers to a color conversion table, which represents a mapping of first image data expressed in a first color system to second image data expressed in a second color system, so as to attain color conversion of first image data into secon |
| 7580156 |
Image processing system, image processing device, dot data processing device, and method and pro |
August 25, 2009 |
| Pixels are grouped into groups of pixels, comprising a plurality of pixels each, and representative tone values are determined for each of a plurality of regions into which the groups of pixels are split. Decisions are made as to whether or not to output dots to the individual pixels in |
| 7554691 |
Printer for printing an image according to presence/absence of dot formation and printing contro |
June 30, 2009 |
| A printing system of the invention successively forms rasters or dot lines on a printing medium to complete a printed image. A raster formation assembly is scanned in a raster-forming direction relative to the printing medium and completes each raster on the printing medium by a pres |
| 7508544 |
Ejection control of quality-enhancing ink |
March 24, 2009 |
| This invention is a printing control apparatus for generating print data to be supplied to a print unit to print. The print unit is capable of forming dots on a print medium by ejecting at least one type of colored ink containing a color material and a quality-enhancing ink for enhancing |
| 7495798 |
Ejection control of quality-enhancing ink |
February 24, 2009 |
| A printing control method of generating print data to be supplied to a print unit capable of forming dots on a print medium by ejecting ink droplets of at least one type of colored ink containing a color material and a quality-enhancing ink for enhancing quality of a printed material. |
| 7480063 |
Print system printing data while storing under compressed state, and printer for use therein |
January 20, 2009 |
| In a printing process with a print head having multiple dot formation elements for creating dots, an overlap printing technique that uses at least two dot formation elements for formation of each raster line requires a large memory capacity for storage of dot data. In a printing syst |
| 7466465 |
Load allocation when executing image processing using parallel processing |
December 16, 2008 |
| For image processing for repeatedly executing process segment sets including N (N is an integer of 3 or greater) unit process segments Lc, Lm, Ly, Lk, Llc, Llm and Ldy, unit process segments are executed by M (M is an integer of 2 or greater but less than N) processing units. The unit |
| 7460285 |
Load allocation when executing image processing using parallel processing |
December 2, 2008 |
| For image processes performed repeatedly using a plurality of processing units on a plurality of partial images aligned mutually adjacent to each other, specified processing is performed. This image process includes (i) a first-type process segment on first partial image data representin |
| 7436559 |
Load assignment in image processing by parallel processing |
October 14, 2008 |
| In image processing carried out by means of repeated execution of process set which includes N unit processes (where N is an integer equal to 3 or greater), prior to execution of the process groups, the N unit processes are assigned to a number M (where M is an integer equal to 2 or grea |
| 7436547 |
Image processing system, image processing device, image outputting device and method for same |
October 14, 2008 |
| A computer serving as an image processing device produces pixel groups by assembling a plurality of adjacent pixels among the plurality of pixels forming the image data, and determines the pixel group tone value for each pixel group. Number data corresponding to the pixel tone values of |
| 7414756 |
Image processing apparatus for converting image data by unit of multiple pixels and printing app |
August 19, 2008 |
| The image processing apparatus or the printing device of the present invention forms units by grouping adjacent multiple-pixels and converts the image data to the dot data representing dot on/off state for each of pixels.The apparatus stores the dot data in a condition enabling ident |
| 7397580 |
Ejection control of quality-enhancing ink |
July 8, 2008 |
| This invention is a printing control method of generating print data to be supplied to a print unit which is capable of forming dots on a print medium by ejecting at least one type of colored ink containing a color material and a quality-enhancing ink for enhancing quality of a printed |
| 7387355 |
High-image-quality halftone process |
June 17, 2008 |
| This invention provides a printing method of printing on a printing medium. The method includes: a dot data generating step of performing a halftone process on image data representing a input tone value of each of pixels constituting an original image, for generating dot data represe |
| 7377613 |
Determination of ink ejection amount error for a printer |
May 27, 2008 |
| A plurality of same ink nozzle arrays are provided, and multiple color patches are printed with mutually different dot recording rates respectively using one of the same ink nozzle arrays. Color specification value of the plurality of color patches is measured for each same ink nozzl |
| 7375855 |
Image processing apparatus for converting image data by unit of multiple pixels |
May 20, 2008 |
| The technique of the invention joins a preset number of adjacent pixels into a unit and collectively converts input image data of each unit into dot data. Here the image data is expressed by tone values of respective pixels constituting an image, and the dot data represents dot on-off |
| 7362473 |
Image processing technique for tone number conversion of image data |
April 22, 2008 |
| The present invention relates to an image processing technique for improving dot dispersion in highlight areas and shadow areas in an error diffusion method.The image processing device of the invention has a plurality of types of error diffusion matrices with different diffusion rang |
| 7336392 |
Method of correcting color image data according to correction table |
February 26, 2008 |
| The technique of the present invention allocates a coordinate point of target image data on a color space to multiple lattice points in a color conversion table and reads data stored at the multiple lattice points. This arrangement ensures high-speed color conversion of the target image |
| 7322664 |
Printing with limited types of dots |
January 29, 2008 |
| The present invention provides a printing control method of generating print data to be supplied to a print unit to print. The print unit comprises a print head having a plurality of nozzles and a plurality of ejection drive elements for ejecting an ink from the plurality of nozzles, |
| 7255417 |
Calibration of ink ejection amount for a printer |
August 14, 2007 |
| An ink ejection amount error is acquired for each of a plurality of same ink nozzle arrays for ejecting same ink. Line sets consisting of N adjacent main scan lines are classified into a plurality of line set types LT11 to LT13 according to a ratio of the pixel counts allocated to th |
| 7246869 |
Printing with varied dot-recording rate with respect to each printing region |
July 24, 2007 |
| The method of the present invention generates print data to be supplied to a printing module, which ejects ink to form dots on a printing medium. This method includes a dot data generation step of generating dot data, which represent a dot formation in respective pixels, according to pix |
| 7196821 |
Image processing device, printing control device, image processing method, and recorded medium |
March 27, 2007 |
| When image data is converted into an expression format based on the dot on-off state, such conversion is performed in a unit of a raster group comprising a predetermined number of adjacent rasters. When this is done, the binarization errors occurring in each pixel of the last raster |
| 7164503 |
Image-processing apparatus, print control apparatus, image-processing method, and recording medi |
January 16, 2007 |
| A specific number of adjacent pixels are combined into blocks. The tone values of the pixels in a target block are detected when the dot on-off state is determined, and the fact that the target block does or does not satisfy specific processing conditions is confirmed based on the relati |
| 7147296 |
Ejection control of quality-enhancing ink |
December 12, 2006 |
| This invention is a printing method of forming dots on a print medium by ejecting a colored ink and a quality-enhancing ink. This method generates dot data representing a state of dot formation of the color dot and the transparent dot at each pixel based on the color dot recording rate t |
| 7101009 |
Ejection control of quality-enhancing ink |
September 5, 2006 |
| A printing control method of generating dot data representing a state of dot formation at each pixel in a printed image represented by an given image data, by formation of dots in respective pixels with the at least one colored ink and the quality-enhancing ink available in the print |
| 7046844 |
Image processing device, image processing method, recorded medium, and program |
May 16, 2006 |
| When color converting image data of a first color coordinate system to image data of a second color coordinate system using a color conversion module, the tone values of said second image data are proportionally increased for conversion in a tone value range in which small dots or li |
| 6943918 |
Printer-system, method of printing, and recording medium for implementing the method |
September 13, 2005 |
| A printer-system for printing or recording images using a plurality of dots having different densities. The printer system includes a head for producing at least 2 different types of dots having different densities per unit area, an input unit for receiving input tone data with respect t |
| 6903747 |
Image processing apparatus, print control apparatus, method of image processing, and recording m |
June 7, 2005 |
| The technique of the present invention carries out color conversion of first image data expressed by a first color system into second image data expressed by a second color system. The procedure first collects multiple adjoining pixels of the first image data into one block, and calculat |
| 6890049 |
Printing system, method of recording images, and ink cartridge attachable to printing system |
May 10, 2005 |
| A printing system of the present invention reduces a total amount of discharge of at least three different color inks that are mixable to express hues in a predetermined range without deteriorating the degree of granularity. The printing system of the invention reads recording ratios |
| 6870641 |
Image processing apparatus, method of image processing, print control apparatus, and recording m |
March 22, 2005 |
| The technique of the present invention temporarily registers a tone error, which arises in each pixel due to determination of the dot on-off state in the pixel, in an intermediate buffer. The technique calculates diffusion errors or error divisions, which are diffused to each of non-proc |
| 6786571 |
Ink set comprising dark yellow ink composition |
September 7, 2004 |
| Disclosed is an ink set comprising at least a normal yellow ink composition and a dark yellow ink composition, the lightness of the dark yellow ink composition being lower than that of the normal yellow ink composition. This ink set can realize recorded images having excellent color |
| 6655784 |
Printing system, print controller, printing apparatus, method of controlling printing operation, |
December 2, 2003 |
| A technique of the present invention uses dark yellow (DY) ink, in addition to a plurality of conventionally used basic color inks including cyan (C) ink, magenta (M) ink, and yellow (Y) ink. The technique may cause a printer to create dots with the DY ink, in place of creation of dots w |
| 6602003 |
Image processing device, print control device, image processing method, and recording medium |
August 5, 2003 |
| Image data is converted into dot density data representing dot creation densities of variable size dots. The procedure converts the image data into data representing the sum of dot creation densities of a small size dot and a large size dot as the dot density data of the small size dot. |
| 6592212 |
Printing system, print controller, printing apparatus, method of controlling printing operation, |
July 15, 2003 |
| A technique of the present invention uses dark yellow (DY) ink, in addition to a plurality of conventionally used basic color inks including cyan (C) ink, magenta (M) ink, and yellow (Y) ink. The technique may cause a printer to create dots with the DY ink, in place of creation of dots w |
| 6545770 |
Dot recording method and dot recording apparatus |
April 8, 2003 |
| A specific image is first recorded according to a plurality of dot recording schemes which have an identical resolution and which are different at least in sub-scan feed operations. Then a desired dot recording scheme is selected corresponding to a desired recorded image which has be |
| 6543870 |
Image processing apparatus and printing apparatus |
April 8, 2003 |
| The technique of the present invention improves the picture quality of resulting prints, which are subjected to special effects like halftoning, in an ink jet printer. With regard to two specific colors, light cyan and light magenta, among six colors, cyan, light cyan, magenta, light mag |
| 6439682 |
Printing method, printing apparatus, and recording medium |
August 27, 2002 |
| In a printing apparatus that enables at least three different types of dots to be created in different ink weights by at least two different inks having an identical hue but different densities, the halftone processing is carried out in an appropriate sequence and according to an appropr |
| 6382757 |
Printer, method of printing, and recording medium for implementing the method |
May 7, 2002 |
| In a known printer that may create different types of dots having different densities or different ink quantities, there is a problem that the types of dots to be created in the respective pixels included in an image are not determined by taking into account the restriction of ink duty. |
| 6356358 |
Dot recording method and dot recording device |
March 12, 2002 |
| A specific image is first recorded according to a plurality of dot recording schemes which have an identical resolution and which are different at least in sub-scan feed operations. Then a desired dot recording scheme is selected corresponding to a desired recorded image which has be |
| 6328400 |
Printer system, method of generating image, and recording medium for realizing the method |
December 11, 2001 |
| The present invention prevents deterioration of the quality in interlace printing. The printing system of the present invention uses a head that regulates the amount of ink spouting from nozzles and forms dots of different diameters. While the diameter of dots formed in one primary scan |
| 6304671 |
Image processing apparatus using an offset correction table enabling interpolation to be perform |
October 16, 2001 |
| The present invention realizes a high-speed data interpolation in a control method for controlling a predetermined plant. The present invention also provides an image processing apparatus that carries out color correction according to the control method. A table is provided to store data |
| 6299283 |
Dot recording using plural sub-scan feed amounts |
October 9, 2001 |
| Integers that are no less than 2 and relatively prime are selected for the nozzle pitch k and the number of effective nozzles Neff which represents the net number of raster lines in a main scanning direction recorded by one main scan,. A plurality of different values are used in combinat |
| 6203134 |
Dot recording method and dot recording device |
March 20, 2001 |
| The pitch k of dot-forming elements is set at a product m.multidot.n of two integers m and n (where m an n are integers of no less than 2). The sub-scan feed is executed by plural sub-scan feed sets, each consisting of m sub-scan feeds. When feed amounts of the m sub-scan feeds in each |
| 6158841 |
Dot recording with plural nozzle groups |
December 12, 2000 |
| A plurality of nozzles in use are classified into M nozzle groups, each nozzle group including Neff nozzles, where Neff is an integer of not less than 2 and M is an integer of not less than 2. A plurality of dot positions on each raster line are also classified into M different types |
