| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 358449000 | Document size detection | 40 |
| 20090009820 | Image forming apparatus - The image forming apparatus comprises:an area extraction portion for detecting a boundary between a not-printed area and an effective image area which is not a not-printed part in image data in both the fast scan and slow scan directions and for extracting one or a plurality of the effective image areas; a sheet selection portion for in forming an image selecting the smallest possible sheet of the sheets which have a size to accommodate the image to be formed and are used by the apparatus; and an image forming portion for forming the image on the sheet selected which the sheet selection portion selects based on the image data in the effective image area extracted by the area extraction portion. | 01-08-2009 |
| 20090080031 | ORIGINAL SIZE DETECTING APPARATUS, ORIGINAL SIZE DETECTING METHOD, AND PROGRAM FOR ORIGINAL SIZE DETECTION - An original size detecting apparatus is capable of carrying out accurate original size detection without erroneous detection of the size of an original due to the influence of external scattered light. A CCD reads reflected light of light irradiated from a light source onto an original placed on an original platen glass. Optical sensors detect two open states of the original presser plate, and a scanner controller performs predetermined control corresponding to each of the open states of the original presser plate detected by the optical sensors, to determine the size of the original based on the result of the reading by the CCD. | 03-26-2009 |
| 20090109496 | IMAGE READING DEVICE AND IMAGE FORMING DEVICE - In an image reading device, a reading unit scans first rectangle regions located within a maximum reading area equivalent to a maximum size of a document that can be scanned and acquires image data from the first rectangle regions. A transporting unit moves the reading unit to the first rectangle regions in a direction of movement opposite to a direction of movement in normal document reading. A document size judging unit detects whether a document exists in each first rectangle region based on the image data acquired by the reading unit and a predetermined threshold, so that a size of the document is judged. The reading unit is arranged to scan second rectangle regions located outside the maximum reading area, the second rectangles being different from the first rectangle regions, and acquire image data from the second rectangle regions. | 04-30-2009 |
| 20090122357 | ORIGINAL SIZE DETECTING APPARATUS, ORIGINAL SIZE DETECTING METHOD, AND PROGRAM FOR ORIGINAL SIZE DETECTION - An original size detecting apparatus is capable of carrying out accurate original size detection without erroneous detection of the size of an original due to the influence of external scattered light. A CCD reads reflected light of light irradiated from a light source onto an original placed on an original platen glass. Optical sensors detect two open states of the original presser plate, and a scanner controller performs predetermined control corresponding to each of the open states of the original presser plate detected by the optical sensors, to determine the size of the original based on the result of the reading by the CCD. | 05-14-2009 |
| 20100033765 | DOCUMENT TYPE CLASSIFICATION FOR SCANNED BITMAPS - Systems and methods are described that facilitate determining an original document format for a scanned document by analyzing a bitmap thereof. Text objects are extracted from the document, binarized, and segmented to identify text. Page orientation and text size are used to distinguish between a slideshow-type document, and a word processing or spreadsheet-type document. To further distinguish between the word processing and spreadsheet types, text column structure and count is analyzed. | 02-11-2010 |
| 20100053696 | DOCUMENT READING DEVICE AND IMAGE FORMING APPARATUS - A document reading device includes: a document image acquisition unit that reads a document and obtains a document image; a memory that holds the document image obtained by the document image acquisition unit; a determination unit that determines whether or not a size or orientation of the document, the image of which is obtained by the document image acquisition unit, matches a set parameter; and a setting change unit that, when it is determined that the size or orientation of the document does not match the set parameter, changes a setting of the parameter so as to match the size or orientation of the document. | 03-04-2010 |
| 20100053697 | IMAGE PROCESSING APPARATUS, IMAGE FORMING APPARATUS, IMAGE PROCESSING METHOD AND RECORDING MEDIUM ON WHICH IMAGE PROCESSING PROGRAM IS RECORDED - An image processing apparatus that is capable of determining a document size with high accuracy, even when a device for detecting the document size is not placed therein and an input operation of the document size by a user is eliminated is provided. A page background determining section extracts candidates for page backgrounds from input document image data and determines the number of page background types. A white pixel counting section counts the number of white pixels from input document image data. A document size determining section determines the document size of the input document image data, based on the number of page background types determined by the page background determining section, a page background density value which is the lowest density value in one or a plurality of page background areas determined to be page backgrounds, and the number of white pixels extracted by the white pixel counting section. | 03-04-2010 |
| 20100067065 | DOCUMENT READING APPARATUS - A document reading apparatus includes a document positioning plate configured to set a document to be read thereon, a light source configured to emit light onto an area where the document is set on the document positioning plate, an image sensor configured to photoelectrically convert reflected light of the light emitted from the light source to output color signals, and a document size detection unit configured to select a color signal used for document size detection from among the color signals output from the image sensor based on the color signals output from the image sensor in a state where the light source is turned off, and to detect a size of the document set on the document positioning plate based on the selected color signal output from the image sensor in a state where the light source is turned on. | 03-18-2010 |
| 20100149603 | IMAGE READING APPARATUS - An image reading apparatus includes: a partial pre-scanning device configured to convey a reading unit in an edge detection area and causes the reading unit to execute a reading operation in the edge detection area, the edge detection area being a partial area within a scannable area on a platen, and a detecting device configured to detect a plurality of edge pixels on a basis of image data, the plurality of edge pixels representing a side of a document, the image data being outputted by the reading unit that reads the edge detection area through execution of the reading operation by the partial pre-scanning device. Upon the plurality of edge pixels not detected on the basis of the image data, the partial pre-scanning device moves the edge detection area in a conveying direction of the reading unit and causes the reading unit to execute the reading operation. | 06-17-2010 |
| 20100157381 | APPARATUS AND METHOD FOR SCANNING BOUND DOCUMENT - An apparatus for scanning a bound document is provided. The apparatus comprises a casing, an image-capturing assembly, at least a sensor and a controller. The casing has a first platen and a second platen disposed adjacent to each other, wherein the first platen having a scanning region is provided to support the bound document. The image-capturing assembly is disposed under the first platen for capturing an image of the bound document within the scanning region and generating an image signal. At least a sensor is disposed on the second platen for detecting the presence of the bound document. The sensor transmits a detection signal responsive to detection of the document presence. The controller is electrically connected to the image-capturing assembly and the sensor for executing a book-scanning mode responsive to the detection signal received from the sensor. | 06-24-2010 |
| 20100296129 | AUTOMATIC SIZING OF IMAGES ACQUIRED BY A HANDHELD SCANNER - A computer peripheral that may operate as a scanner. The scanner captures image frames as it is moved across an object. The image frames are formed into a composite image based on computations in two processes. In a first process, fast track processing determines a coarse position of each of the image frames based on a relative position between each successive image frame and a respective preceding image determine by matching overlapping portions of the image frames. In a second process, fine position adjustments are computed to reduce inconsistencies from determining positions of image frames based on relative positions to multiple prior image frames. As additional image frames are added to the composite image, the size and format of the composite image may be automatically adjusted to facilitate ease of use. | 11-25-2010 |
| 20100328729 | IMAGE READING APPARATUS, CONTROL METHOD, AND COMPUTER READABLE PROGRAM THEREOF - The image reading apparatus, which is capable of communicating with the electrical paper displaying an image based on image data, is configured to select whether the image displayed on the electrical paper is read based on a size of the electrical paper or a size of the image data, when the image is read, and to instruct the electrical paper to change a display content of the image to be displayed on the electrical paper, in accordance with a result of the selection. | 12-30-2010 |
| 20110310443 | DEVICE AND METHOD FOR SCANNING LARGE-FORMAT DOCUMENTS - A method for scanning large-format documents by way of a large-format scanner, which is connected to a PC ( | 12-22-2011 |
| 20120013954 | IMAGE PROCESSING METHOD - An image processing method in which the image of a document is extracted from an image including the image of the document on a document positioning table, acquired by a line sensor scanning the document placed on the document positioning table while illuminating the document from the upstream side or the downstream side of the scanning includes extracting the edge of the image on the document positioning table to set a provisional document area based on the edge, detecting a bright area where light incident on the line sensor is excessive, at the illuminated edge on the upstream side or the downstream side in the scanning direction from the image of the provisional area, and determining the area of the document by removing the area where light is excessive from the provisional area. | 01-19-2012 |
| 20120081759 | IMAGE PROCESSING APPARATUS, CONTROL METHOD OF IMAGE PROCESSING APPARATUS, AND STORAGE MEDIUM - By using a memory capable of storing image data of a document size smaller than a maximum document size, images on both sides of a document of the maximum document size can be simultaneously read. | 04-05-2012 |
| 20120086990 | IMAGE PROCESSING APPARATUS AND METHOD - In a method for reading a document set on a document positioning plate to output image data, an edge area of an image of an entire reading area is extracted to form a first rectangle area including the extracted edge area. If a position of an apex of the first rectangle area farthest from a reading reference position and a size of the first rectangle area satisfy predetermined conditions, image data corresponding to a second rectangle area including the first rectangle area and the reading reference position are output. | 04-12-2012 |
| 20120113480 | FLAT DISPLAY DEVICE, DISPLAY CONTROL METHOD, AND NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM ENCODED WITH DISPLAY CONTROL PROGRAM - A flat display device that can be placed on an image reading apparatus includes: a display surface to display an image; a light detection portion provided on the display surface to detect light; a read region detection portion to, if scanning light emitted by the image reading apparatus is detected by the light detection portion, determine a read region in the display surface based on the detected scanning light; and a display control portion to display an image in the determined read region in the display surface. | 05-10-2012 |
| 20120229873 | APPARATUS WITH CAPABILITY OF DETECTING TWO-DIMENSIONAL CODE - Since, for detecting a two-dimension code added to a document, the detection processing is performed by checking the four corners of the read image, if the user specifies an A3 size as a reading size of an image in the copy of an A4-size document, the two-dimensional code is not detected. When the document size detected by the copying machine differs from the reading size of the image specified by the user, the processing for the two-dimensional code detection is performed checking the four corners of the region of the document size detected by the copying machine. | 09-13-2012 |
| 20130003136 | IMAGE READING APPARATUS - An image reading apparatus, including a driving unit, a separator unit, a conveyer unit, a reader unit, a reducer unit, a size detecting unit; and a controller is provided. The separator unit includes a drive shaft, a contact member, and a clutch. The controller manipulates the conveyer unit via the driving unit to convey the sheet at a first conveying speed when the size of the sheet detected by the size detecting unit is greater than a predetermined size. The controller manipulates the conveyer unit via the driving unit to convey the sheet at a second conveying speed, which is lower than the first conveying speed, when the size of the sheet detected by the size detecting unit is one of smaller than and equivalent to the predetermined size. | 01-03-2013 |
| 20130063789 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, COMPUTER READABLE MEDIUM AND IMAGE PROCESSING SYSTEM - Provided are an image processing apparatus, an image processing method, a computer-readable medium storing a computer program and an image processing system improving precision of the calculation of boundary based on candidate pixels constituting the boundary of a side of the document region. The image processing apparatus includes a candidate pixel detector for detecting candidate pixels constituting boundary of sides of the document region, a classifier for classifying coordinates of the candidate pixels respectively detected in plural portions of the boundary into a plurality of groups, an approximate line calculator for calculating a plurality of approximate lines for the boundary based on the coordinates belonging to each of the plurality of groups, and a provisional line determination unit for determining a provisional line for the boundary of the side based on the approximate line having the largest number of candidate pixels within a prescribed distance from the approximate line. | 03-14-2013 |
| 20130083367 | Sheet-Conveying Device Having Opening - A sheet conveying apparatus includes: a sheet placing part; a conveying part; an apparatus wall; and a judging unit. The sheet placing part is configured to receive a sheet placed thereon. The conveying part is configured to convey the sheet from the sheet placing part. The apparatus wall defines a first conveyance opening. The judging unit is configured to judge whether the sheet is able to pass the first conveyance opening. The conveying part conveys the sheet to the first conveyance opening if the judging unit determines that the sheet is able to pass through the first conveyance opening. The conveying part does not convey the sheet to the first conveyance opening if the judging unit determines that the sheet is unable to pass through the first conveyance opening. | 04-04-2013 |
| 20130094066 | IMAGE PROCESSING DEVICE - An image processing device includes an image scanning unit, a first paper feed cassette, and an image recording unit. The image scanning unit scans a document placed on a document scanning surface, which defines a maximum document size. The first paper feed cassette accommodates recording paper of a size up to a first size, which is the same as the maximum document size. The image recording unit records an image on the recording paper. The maximum document size is defined by a scan maximum main scanning length and a scan maximum sub-scanning length that is preferably shorter than the scan maximum main scanning length. A record main scanning direction is parallel or substantially parallel to a long side of the recording paper of the first size accommodated in the first paper feed cassette. A scan main scanning direction is parallel or substantially parallel to the record main scanning direction. | 04-18-2013 |
| 20130135688 | DOCUMENT SCANNER - A document scanner ( | 05-30-2013 |
| 20130242355 | ORIGINAL READER CAPABLE OF READING ORIGINALS OF VARIOUS SIZES AND METHOD OF READING ORIGINAL - An original reader capable of being downsized without requiring a large-capacity image memory. A conveying path conveys an original. Sensors are arranged on the conveying path, for detecting the conveyed original. CCD line sensors read the conveyed original. A CPU of the image reader decides the size of the conveyed original based on the results of detection by the sensors. An image memory stores image data output from the line sensors. The CPU transmits the decided original size and the stored image data to a controller. When the CPU cannot decide the original size at a predetermined timing, it transmits one of original size candidates to the controller, as a provisional original size. When the size of the original decided afterwards is different from the provisional original size, the CPU retransmits the decided size of the original. | 09-19-2013 |
| 20140009798 | DYNAMIC SCANNER WITH WIDTH SENSING AND SINGLE POINT SENSOR - A scanner apparatus and method includes an optical scanner, at least one movable carriage associated with the optical scanner, and a point sensor that rides the movable carriage to measure a slow scan document width associated with a document scanned by the optical scanner. The point sensor moves in a slow scan direction with respect to the document scanned by the optical scanner. The point sensor also includes a single moving size sensor that improves a resolution by which a size associated with the document is determinable. | 01-09-2014 |
| 20140022605 | IMAGE READING APPARATUS AND METHOD, IMAGE FORMING APPARATUS, AND COMPUTER-READABLE MEDIUM - An image reading apparatus includes a document cover, a cover state detector that detects whether the document cover is open or closed, an image reading unit that reads an image by conducting an optical scan that moves a scanning body with a mounted light source, detecting reflected light from the target object with a photoelectric transducer, and outputting a signal expressing the detected pixel densities, a white reference plate used as a reference for correcting an image, a power manager that switches between a power-saving state and a standby state, and a controller that controls the respective units such that in the case of restoring the standby state due to detecting the opening or closing of the document cover, an image of a document is read to detect the document size, and an image of the white reference plate is read after the detection to acquire correction values. | 01-23-2014 |
| 20140085685 | IMAGE READING DEVICE - An image reading device includes a platen glass, a document feeder, a light source, a light receiving section, a first opening/closing detection sensor, a second opening/closing detection sensor, and a document size determination section. The document size determination section determines a size of an original document on the basis of a measurement result from the light receiving section. Where the first opening/closing detection sensor indicates the open state, while the second opening/closing detection sensor indicates no open state when the original document is placed on the platen glass, the document size determination section determines a size of the original document in a main scanning direction on the basis of full lighting-up determination data obtained with all of plural light emitting elements lighted up and partial lighting-up determination data obtained with some of the plural light emitting elements lighted up. | 03-27-2014 |
| 20140153059 | FACSIMILE APPARATUS CAPABLE OF PERFORMING DIVISION PRINTING OF DOCUMENT, METHOD OF CONTROLLING THE SAME, AND STORAGE MEDIUM - A facsimile apparatus which is improved in user friendliness for a user to print a document received by facsimile communication and is capable of performing division printing of the document. A sheet size of sheets on which the received document is to be printed is determined. In a preview process, when a document to be printed according to a determined sheet size is to be divided so as to be printed on a plurality of sheets, a preview image of the document in which a position where the document is to be divided is indicated is displayed on a display section. Further, in the preview process, the preview image is displayed on the display section by changing the position where the document is to be divided according to designation of the sheet size by a user. | 06-05-2014 |
| 20140192386 | DOCUMENT READING UNIT, IMAGE FORMING APPARATUS INCORPORATING SAME, AND METHOD OF DETECTING ORIGINAL DOCUMENT USING WITH SAME - A document reading unit included in an image forming apparatus and operated with a method of detecting an original document, includes an original document table, a moving irradiation unit having multiple block light sources moving in a sub scanning direction while irradiating the original document, an image sensor receiving reflected light, and a controller that starts a length specifying operation with the moving irradiation unit located at a position facing the original document, sequentially turns on the block light sources, obtains an amount of reflected light under lighting conditions of each block light sources, and determines the length of the original document in the main scanning direction. While the moving irradiation unit is moving in the sub scanning direction, the image sensor receives the reflected light on a region of the original document in the sub scanning direction under each lighting condition during the length specifying operation. | 07-10-2014 |
| 20140240792 | IMAGE READING APPARATUS AND IMAGE FORMING APPARATUS INCLUDING THE SAME - An image reading apparatus includes placement member, pressing member, and open/close detection portion. Open/close detection portion detects opening and closing of pressing member. Open/close detection portion includes movable portion, guide hole, and sensor. When pressing member is opened, movable portion moves toward one side, thereby protruding to an area between placement member and pressing member, and when pressing member is closed, movable portion moves toward the other side. Movable portion extends along movement direction thereof. Guide hole of movable portion guides movement of movable portion in movement direction. Movable portion has a plurality of groove portions extending in movement direction, and groove portions partially include guide groove. Guide hole has guide protrusion protruding from inner circumferential surface thereof toward groove portion of movable portion, so as to guide movement of movable portion. Guide protrusion is formed only at position opposing to guide groove, of groove portions of movable portion. | 08-28-2014 |
| 20140355073 | CLASSIFICATION OF SCANNED HARDCOPY MEDIA - A method for automatically classifying scanned hardcopy media based on its physical size. The hardcopy media is classified as a photograph if the determined physical size matches a common physical sizes for photographs to within a predetermined tolerance, and is classified as a document if the determined physical size matches one of the common physical sizes for documents to within a predetermined tolerance. Otherwise, a media classification is determined using contextual processing. | 12-04-2014 |
| 20150015922 | USING A SCANNING IMPLEMENTED SOFTWARE FOR TIME ECONOMY WITHOUT RESACANNING (S.I.S.T.E.R.) - Methods and devices are described for detecting boundaries of documents on flatbed and multi-function scanners on a first pass of a carriage assembly, and then performing a high resolution scan on a second pass. High resolution images of documents can then be obtained with little or no interaction normally necessary to identify areas of interest on the scanner bed. Patterns on the scanner cover or lid facilitate not only edge determination, but orientation of text and other objects, and straightening of images in preparation for OCR and related functions. Electronic images and files derived from paper documents may be automatically cropped, deskewed, subjected to OCR, and named consistent with content or other information derived from them. | 01-15-2015 |
| 20150062664 | SCANNER - A scanner identifies a document size on the basis of the intensity of light outputted in a photometric condition different from a first photometric condition, by photometric units provided to a position subject to determination that is a position excluding a position where light of an intensity not less than a first threshold value is received in the first photometric condition, among a plurality of positions to which the photometric units are provided. The first photometric condition is a condition where a document cover is open and a light-emitting unit is not emitting light. | 03-05-2015 |
| 20150350489 | IMAGE PROCESSING DEVICE GENERATING RECTANGULAR IMAGE DATA FROM INTERMEDIATE IMAGE DATA - An image processing device performs: generating intermediate image data representing an intermediate image in which a first image is combined with a second image; and generating rectangular image data representing a rectangular image by executing at least one of addition of at least one pixel to the intermediate image and deletion of at least one pixel from the intermediate image such that number of pixels aligned in the first direction of the rectangular image is brought into coincidence with a third pixel number and number of pixels aligned in the second direction of the rectangular image is brought into coincidence with a fourth pixel number. A ratio of the third pixel number to the fourth pixel number is equal to a ratio of the first pixel number to the second pixel number. | 12-03-2015 |
| 20160050334 | IMAGE READING APPARATUS AND CONTROL METHOD - It is determined based on processing to be performed on image data generated by reading by a first reading unit and a second reading unit, whether to separate, into image data of the first surface and image data of the second surface, image data that has been generated by reading by the first reading unit configured to read the first surface of a document, and the second reading unit configured to read the second surface of the document, and that includes the first surface and the second surface. When it is determined to separate the image data, the image data including the first surface and the second surface is separated into the image data of the first surface and the image data of the second surface. | 02-18-2016 |
| 20160057294 | Image Forming Apparatus, Document Sheet Size Detection Method - An image forming apparatus that includes: an image reading portion capable of reading image data of the document sheet; document sheet detection sensors; an ADF including a document holding surface on which first and second areas having different reflection characteristics and third and fourth areas having different reflection characteristics are formed; a first reading control portion that causes the image reading portion to read image data of both the first and second areas when the ADF is closed; a first document sheet width detection portion that detects a width of the document sheet based on the image data read from the first area or the image data read from the second area; and a first size detection portion capable of detecting the size of the document sheet based on detection results from the first document sheet width detection portion and the document sheet detection sensors. | 02-25-2016 |
| 20160065783 | IMAGE READING DEVICE - This image reading device includes a determination unit and a control unit. The determination unit determines whether the total data size of all pages, which is a sum total of image data sizes of all the pages calculated based on the image data sizes accepted page by page by an acceptance unit, exceeds an allowable data size stored in a storage unit. If the determination unit determines that the total data size of all the pages, which is calculated based on the image data sizes accepted page by page by the acceptance unit, does not exceed the allowable data size stored in the storage unit, the control unit causes a reading unit to reread the images of the pages at the image data sizes accepted by the acceptance unit and causes an image data generation unit to generate image data of the images. | 03-03-2016 |
| 20160080606 | PAGE IMAGE CORRECTION DEVICE, AND RECORDING MEDIUM - A page image correction device includes: an acquisition unit that acquires a page image of each page of a plurality of pages from a book, the book being successively imaged in a thickness direction thereof; and a processor configured to: derive, in accordance with a page image of a first prescribed page and a page image of a second prescribed page differing from the first prescribed page, an amount of change in a thickness of the book when the book is opened to the first prescribed page as compared to when the book is opened to the second prescribed page; and correct, in accordance with the amount of change in the thickness of the book, page images of pages between the first prescribed page and the second prescribed page. | 03-17-2016 |
| 20160134769 | IMAGE READING APPARATUS AND IMAGE FORMING APPARATUS - In a case where a user places a document placed on a document positioning glass plate without sufficiently opening an automatic document feeding device, sheet size information will not be reset and an image may be read based on incorrect size information. Therefore, in the present invention, an angle at which the size information is reset is set to an angle between a first angle at which the automatic document feeding device is closed, and a second angle (θ | 05-12-2016 |
| 20160150099 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - In an image forming apparatus, a notification processing portion is capable of suspending execution of a copy process by a process executing portion, and notifying a determination result of a size determining portion, in a case where an operation to execute the copy process has been performed and where the size determining portion has determined that documents having a size smaller than or equal to a size of a sheet on which a image forming portion can form an image, and having a width, in the document width direction, larger than a width, in the sheet width direction, in which the image forming portion can form an image, are placed on the document placement portion. | 05-26-2016 |
