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| Number | Title | Issue Date |
| 7729024 | Color drift error correcting method and image forming apparatus A color-drift correcting method in an image forming apparatus includes a first and a second color-drift correcting. The first color-drift correcting includes correcting the color-drift amount in a sub scanning direction and a skew relative to the reference color ima... | 06/01/2010 |
| 7365764 | Scanning optical apparatus and color image forming apparatus using the same A scanning optical apparatus includes a light source capable of being modulated, a deflecting element for deflecting and scanning a beam emitted from the light source, a scanning optical element for imaging the deflected beam into a spot shape on a scanned surface, ... | 04/29/2008 |
| 7339699 | Image processing apparatus An image processing apparatus includes a first sensor having a plurality of reading elements arranged in the primary scanning direction, a second sensor disposed in parallel with the first sensor and by a predetermined lines in the secondary scanning direction, an i... | 03/04/2008 |
| 7103210 | Position detection apparatus and exposure apparatus A position detection apparatus for detecting a position of a mark on an object includes a camera which captures an image of the mark, an extraction section which extracts a plurality of edge positions of the mark based on a signal derived from the image of the mark,... | 09/05/2006 |
| 7085006 | Apparatus for generating two color printing data, a method for generating two color printing data and recording media A two-color print generating apparatus generates two-color print data based on color-converted image data in which the color of each pixel of full-color bit depth in an image is converted to a print color comprising a background color, a main color, or a secondary c... | 08/01/2006 |
| 7050195 | Printed medium data storage A method of, and apparatus for, printing information on a hardcopy medium includes the acceptance of data representing a first information and the acceptance of data representing a second information. Second information is printed in regions on the medium where firs... | 05/23/2006 |
| 7015940 | Scanning optical apparatus and color image forming apparatus using the same A scanning optical apparatus includes a light source capable of being modulated, a deflecting element for deflecting and scanning a beam emitted from the light source, a scanning optical element for imaging the deflected beam into a spot shape on a scanned surface, ... | 03/21/2006 |
| 7002710 | High reliability forensic color marking system A forensic marking system and method for identifying the printing device on which a medium was printed. Encoded forensic markings which identify the device but are of low perceptibility to the human eye are superimposed on the printed image. The markings have a colo... | 02/21/2006 |
| 6891630 | Image recording method and image recording apparatus An image information changing part is added to correct image information of respective colors to be recorded according to information of errors among images to be combined so that color images may be combined exactly. An image recording method and an image recording... | 05/10/2005 |
| 6785488 | Image formation method, image formation apparatus, computer program, and storage medium An image read from a document is analyzed to check whether the image includes a guide information at a predetermined position of the image. The guide information represents, for example, a layout of the document on the paper. The direction of a paper on which the im... | 08/31/2004 |
| 6525845 | Methods and apparatus for modifying image data based on identification of marking process Image information is re-calibrated based on the type of marking process and materials by which the image corresponding to the image information was marked on a substrate. The marking process is automatically detected by using, for example, at least one sp... | 02/25/2003 |
| 6388673 | Method and system for filter type approximation in computer graphics processing A method and system for an approximation of a filter function for computing a characteristic value of an output pixel based on characteristic values of a plurality of input pixels is provided. A filter response curve adjustment value is obtained, preferab... | 05/14/2002 |
| 6326997 | Digital still camera utilizing a progressive image sensor A digital still camera using a progressive image sensor includes an image sensor for capturing images and for generating image signals corresponding to the images, an image processor for generating image data corresponding to the image signals from the im... | 12/04/2001 |
| 6211974 | Laboratory system, method of controlling operation thereof, playback apparatus and method, film image management method, image data copying system and method of copying image data Images of film that has been developed are captured by image sensing. The original digital image data is converted to reduced digital image data representing images that are reduced in size and stored on a user's disk, and the original digital image data ... | 04/03/2001 |
| 6185002 | Reduction of periodic artifacts in incremental printing, through use of asymmetric randomized superpixels Periodic inking artifacts are reduced by randomness introduced into an image-processing stage. This goes beyond providing a fixed pattern earlier derived through random processing; rather the system literally introduces randomness or at least pseudorandom... | 02/06/2001 |
| 5978555 | Color image recording apparatus The improved color image recording apparatus comprises a raster image processor to create scan image data; a color management system to correct the color/density of the scan image data; an exposing device with which a photosensitive material is scan expos... | 11/02/1999 |
| 5587771 | Image sampling and color shift correction system in multiple image forming apparatus An image sampling and color shift correction system in a multiple image forming apparatus forms a multiple image by providing a plurality of image output units along a transfer belt. An image control unit applies image data to the image output units. A pa... | 12/24/1996 |
| 5579092 | Color printer correctable positional errors in respective printing mechanisms A color printer arranges respective printing mechanisms for printing yellow, magenta, cyan, black and rotatably arranges below the respective printing mechanisms a carrier belt attaching a recording medium thereto and moving it. The carrier belt is formed... | 11/26/1996 |
| 5519815 | Image processing method to reduce marking material coverage in printing processes In a device for processing color images preparatory to printing, there is provided a method of reducing marking material coverage in text and line art areas of secondary colors including the steps of: a) determining the locations of text and line art colo... | 05/21/1996 |
| 5253082 | Image forming apparatus In an image forming apparatus for forming an ordinary copy or a tonality image for an original image for a printing master, original image data is divided into a predetermined area, and pixel density within the area is subjected to a density conversion in... | 10/12/1993 |
| 4937664 | Image forming apparatus An image forming apparatus has a plurality of image forming stations capable of forming different images which are to be correctly registered and superimposed. Elimination of possible image misregistration in each image station is executed on the basis of... | 06/26/1990 |
| 4891693 | Reference marking device for image transmitters A reference marking device for image transmitters includes a transmitter (FIG. 1) and a receiver (FIG. 3). The transmitter includes a scanner, which optically scans an image, and generates an image signal corresponding to the content of the image. The rec... | 01/02/1990 |
| 4875092 | Image forming apparatus with positioning-mark forming function A color image data output section outputs color image data as a main image formed on an image forming medium. A positioning-mark data output section outputs positioning mark data representing a positioning mark to be formed at a predetermined position of ... | 10/17/1989 |
| 4691229 | Apparatus for checking color pictures on a color monitor Apparatus for checking or, respectively, correcting a color picture to be printed on a monitor, whereby reference colors stored for color checking by means of a coordinate acquisition means can be made visible in a reference color field at abitrary locati... | 09/01/1987 |
| 4679071 | Method of recording register marks A method of recording register marks by a color scanner for the respective color separation pictures, wherein the register marks are produced by positive and negative linear pictures, or alternatively, by positive linear picture having omitted portions, t... | 07/07/1987 |
| 4652914 | Method of recording register marks A method of recording register marks by a color scanner for the respective color separation pictures, wherein the register marks are produced by positive and negative linear pictures, or alternatively, by positive linear pictures having omitted portions, ... | 03/24/1987 |
| 4320419 | Image reproduction equipment To record on a single sheet (9) both a picture image and alphanumeric characters, each character to be recorded is stored (24) in the form of signals representing a multi-column pattern of dots which make up that character. Signals derived in synchronism ... | 03/16/1982 |
| 4007489 | Method and apparatus for creating color copies of an original by an electrostatic charging process An original is sampled line-by-line at a predetermined number of points along each line and sampling signals indicative of the density of the original in each of three colors are furnished while electrographic paper or film is transported past a first, se... | 02/08/1977 |
