The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
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| Number | Title | Issue Date |
| 7982929 | Method of sensing symmetric coded tags A method of using a sensing device to read coded data is provided. The coded data is arranged in accordance with a layout having mirror and n-fold rotational symmetry about a center of rotation, where n is at least two. The layout includes n identical first sub-layo... | 07/19/2011 |
| 7903306 | Sensor image encoding and/or decoding system, medium, and method Sensor image encoding and/or decoding systems, media, and methods. The sensor image encoding system may include a first color component interpolation unit transforming a sensor image into a first format image by interpolating a first color component of at least two ... | 03/08/2011 |
| 7813015 | Image processor of imaging apparatus A format conversion circuit converts RGB data to YCbCr data. A one-dimensional compression circuit performs one-dimensional compression process on the YCbCr data to generate one-dimension compression image data and provides the one-dimension compression image data t... | 10/12/2010 |
| 7729025 | Color image compressing method and device It is an object of the present invention to improve the compression ratio of a color image and to clearly display the outlines of characters and the like. A hue cluster classifying/unifying unit reduces the number of hue values of each pixel in a color image, based ... | 06/01/2010 |
| 7593148 | Image compressing method and image compression apparatus An image compressing method includes: separating image data obtained from an image pickup device into each primary color component; obtaining difference data between each piece of image data of color components of colors other than a reference color in the image dat... | 09/22/2009 |
| 7564605 | Symmetric tags Coded data for disposal on or in a surface, the coded data being arranged in accordance with at least one layout having n-fold rotational symmetry about a center of rotation, where n is at least two, and having mirror symmetry, the layout including: ... | 07/21/2009 |
| 7440128 | Print data compressing method A print data method includes a slicing step, a compressing step and decompressing step. The slicing step divides a swatch of data to be printed and required by each motor movement into a plurality of slices, each having m bits to represent printed pixels and further... | 10/21/2008 |
| 7433069 | Image transmission method and its apparatus An image transmission apparatus and method for use with at least two transmission paths having different transmission rates from one another. The image transmission apparatus comprises an image input for receiving an image signal, a coding processing unit for encodi... | 10/07/2008 |
| 7433522 | JBIG coding apparatus and method with low cost, high-performance ping-pong buffer arrangement The present invention provides an image coding apparatus and method, which can achieve a low-cost, real time, and high-performance coding process by utilizing a line buffer and an auxiliary buffer to execute a typical prediction process in JBIG encoding, a ping-pong... | 10/07/2008 |
| 7424130 | Coding apparatus and method, decoding apparatus and method, data processing system, storage medium, and signal The invention relates to a coding apparatus for embedding second data into first data without deteriorating the first data and a decoding apparatus for decoding coded data into original first data and second data without deteriorating those data. The invention provi... | 09/09/2008 |
| 7423652 | Apparatus and method for digital video decoding The decoding method is disclosed. The steps of the method includes recording each status of a plurality of data blocks of compressed macroblocks indicated by a first pointer to a first pointer storage area and each status of a plurality of data blocks of compressed ... | 09/09/2008 |
| 7400428 | Color facsimile apparatus and method of controlling communication thereof The present invention makes it possible to transmit an image, which has been captured as by a digital camera, in the form of a file by facsimile communication. To this end, if an X bit of a FIF (Facsimile Information Field) from a receiving machine is ON, the facsim... | 07/15/2008 |
| 7394578 | Facsimile device reading lines of image data divisively in a sub-scanning direction This facsimile device comprises inputting means for inputting image data of a subject copy having a width in a main scanning direction larger than an A3-size width, reading means for divisively reading lines of the image data in a sub-scanning direction by dividing ... | 07/01/2008 |
| 7372596 | Color conversion definition creating method, color conversion definition creating apparatus, and color conversion definition creating program storage medium A combined profile is created through a first step of deriving a coordinate component of a black on a color space for CMYK dot % for a printer associated with a predetermined representative coordinate in the color space for CMYK dot % for printing, on the representa... | 05/13/2008 |
| 7372591 | Image forming device and image forming method An mage forming device and image forming method capable of performing selective data compression. Printing data transmitted from a host computer are stored in RAM and developed into image data by CPU. The CPU determines whether or not the greatest raster length in t... | 05/13/2008 |
| 7369270 | Print engine/controller and printhead interface chip incorporating the engine/controller A print engine/controller suited to use with a drop on demand print head. The print engine/controller works with compressed page data having both JPEG contone image layers and a bi-level image plane compressed using a Group 4 facsimile protocol. It receives compress... | 05/06/2008 |
| 7369706 | Image-data processing device, image-data processing method, image-data distributing device and image-data transmitting system An image processing device for processing an original image divided into a plurality of blocks that are made up of a plurality of picture elements from encoded image-data which is obtained by encoding a spatial-frequency component of the block as a plurality of spat... | 05/06/2008 |
| 7369284 | Image signal processing method, image signal processing device, and image signal processing system A color image signal processing device having a high resolution and excellent color reproducibility even though the device comprises a one-chip color sensor. The data format for transmitting image information inputted through an input unit to an output unit includes... | 05/06/2008 |
| 7366319 | Embedding a multi-resolution compressed thumbnail image in a compressed image file A method (300) of encoding an image into an image code-stream. The method (300) generates a reduced resolution representation of the image and encodes the reduced resolution representation in accordance with a multi-resolution format to form an encoded... | 04/29/2008 |
| 7363175 | Query based electronic battery tester An electronic battery tester for testing a storage battery provides a test output indicative of a condition of the battery. Electronic measurement circuitry provides a measurement output related to a condition of the battery. The battery condition is determined base... | 04/22/2008 |
| 7362471 | Image-forming controller, method therefor, program, and storage medium A controller for a four-drum printer eliminates a need for an expensive inter-drum delay memory, which has been conventionally used, to print an RGB image and allows a multifunction machine, printer, and the like to be provided at low cost. An image ring interface r... | 04/22/2008 |
| 7349135 | Time multiplexed image data decompression circuit A circuit which uses a compressor to divide each separation image into 8-line strips, and to independently compress each strip, a single decompressor to decompress two or more color image separations, strip by strip, by interleaving them, and to apply them to two or... | 03/25/2008 |
| 7346215 | Apparatus and method for capturing a document An apparatus for capturing a document with a plurality of compression models comprises an image-processing system and an image-capturing system. The image-processing system is for accepting a request of setting the compression models for the document and processing ... | 03/18/2008 |
| 7345794 | Document reading apparatus and document reading method In a simultaneous double-sided document reading, this invention controls by software the document reading order to store image data in a single image storage device in the same order as a document page sequence. The copying apparatus has a reader unit, a printer uni... | 03/18/2008 |
| 7315661 | Directional interpolation method using DCT information and related device The invention provides a method for interpolating a pixel within an image. The image has a plurality of pixels arranged in a matrix format. The method includes detecting if there is an edge in a block of the image according to a Discrete Cosine Transform (DCT) data ... | 01/01/2008 |
| 7307759 | Method and equipment for automatically performing color/monochrome judging of an original A copier and method for automatically determining whether the original is color or monochrome and generating a corresponding copy. The copier comprises a scanner which generates RGB data from the document, a color/monochrome processor which determines whether the do... | 12/11/2007 |
| 7308158 | Imaging method and system Imaging methods and systems are provided for indicating at least one preferred output form for an area within a digital image. In accordance with the method, a selection area is determined within the digital image and a preferred output image form is determined for ... | 12/11/2007 |
| 7304756 | Image information processing apparatus, and computer-readable recording medium A sender device 1 stores, in header information about image information, information indicating that attribute information and image data rearranged in sequence, and produces image information by means of storing attribute information and image data in a pred... | 12/04/2007 |
| 7292728 | Block quantization method for color halftoning A method and apparatus for block quantization for color halftoning is described. In one embodiment, the method comprises dividing an input image and an output image into blocks, wherein each block in the output image corresponds to one block in the input image. The ... | 11/06/2007 |
| 7289245 | Color facsimile device capable of transmitting color image information represented in appropriate color space through multiple communication channels A color facsimile device capable of transmitting color image information through multiple communication methods, such as G3, G4, T.37, and T.38, which can convert color image information into that represented in appropriate color space for each communication methods... | 10/30/2007 |
| 7274827 | Filter process The image resolution of an original image is reduced, so that the original image is changed to a low-resolution image. Here, a bi-linear interpolation or a bi-cubic convolution is carried out for the resolution reduction. Pixel data from each pixel of the low-resolu... | 09/25/2007 |
| 7271934 | Method for smooth trap suppression of small graphical objects using run length encoded data A method for smooth trapping of an object containing run length encoded image pixel data, includes collecting a number of scanlines of run length encoded pixel data equal to 2M in a buffer, wherein M is a line width trap threshold; determining those runs within the ... | 09/18/2007 |
| 7271923 | Image processing using processing by bands and fixed-size work buffer A high-quality image processing apparatus capable of performing image transfer processing using a predetermined work buffer even if different decoding methods are used, without physically increasing the memory capacity. Image data in page description language is inp... | 09/18/2007 |
| 7266237 | System and method for a heuristics-based approach for determining a number of colors in an image A method for determining a number of colors in a digital image includes receiving a digital image and determining a total number of pixels in the digital image. A proportion of the total number of pixels is selected as having an infrequent color and a respective col... | 09/04/2007 |
| 7239743 | Methods and apparatus for texture compression and computer program product therefor A method for texture compressing images having a plurality of color components (R, G, B), includes decomposing the images in sub-blocks each including only one color component. At least one first predictor is defined for each sub-block and a respective set of predic... | 07/03/2007 |
| 7223956 | Electronic imaging system An electronic imaging system having an image sensor array that includes photodetectors arranged in rows and a rolling shutter for initiating charge integration by row and reading out pixel signals by row after a lapse of a predetermined integration time is equipped ... | 05/29/2007 |
| 7215832 | Retrieval system and image processing apparatus The retrieval system includes a storage device for storing compressed image data of the image of interest and a retrieval device for retrieving the image while the compressed image data is in a compressed state, and preferably further includes a compression device f... | 05/08/2007 |
| 7212680 | Method and apparatus for differentially compressing images Provided are an image compression method and apparatus for differentially encoding digital image signals based on a Joint Photographic Experts Group (JPEG) image compression standard. RGB image signals are converted to luminance and chrominance data. Pixels of conve... | 05/01/2007 |
| 7209266 | Image processing apparatus Without repeating compression/decompression operations, an editing process such as rotation can be executed using first compression data, and second compression data, whose compression ratio is increased, can be stored in a hard disk drive. ... | 04/24/2007 |
| 7209262 | Method and apparatus for processing image signal and computer-readable recording medium recorded with program for causing computer to process image signal In a method for processing an image signal, in which method input image information for an input image is converted into an image forming controlling signal for an image forming apparatus, a conversion from said input image information into said image forming contro... | 04/24/2007 |