Source: http://www.google.com/patents/US7545538?ie=ISO-8859-1
Timestamp: 2014-03-14 06:55:58
Document Index: 770245258

Matched Legal Cases: ['art 91', 'art 12', 'art 82', 'art 12', 'art 91', 'art 82']

Patent US7545538 - Image-processing apparatus, image-processing method and recording medium - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsIn an image-processing apparatus, a digital image signal is stored in a memory, and a memory access control part entirely manages all accesses to the memory with respect to the digital image signal. An image processing part converts the digital image signal stored in the memory into an output image signal...http://www.google.com/patents/US7545538?utm_source=gb-gplus-sharePatent US7545538 - Image-processing apparatus, image-processing method and recording mediumAdvanced Patent SearchPublication numberUS7545538 B2Publication typeGrantApplication numberUS 11/313,953Publication dateJun 9, 2009Filing dateDec 22, 2005Priority dateSep 27, 2000Fee statusPaidAlso published asDE60139241D1, EP1202556A2, EP1202556A3, EP1202556B1, EP1947836A2, EP1947836A3, US7027190, US20020036643, US20060098227Publication number11313953, 313953, US 7545538 B2, US 7545538B2, US-B2-7545538, US7545538 B2, US7545538B2InventorsYoshiyuki Namizuka, Rie IshiiOriginal AssigneeRicoh Company, Ltd.Export CitationBiBTeX, EndNote, RefManPatent Citations (32), Classifications (11), Legal Events (1) External Links: USPTO, USPTO Assignment, EspacenetImage-processing apparatus, image-processing method and recording mediumUS 7545538 B2Abstract In an image-processing apparatus, a digital image signal is stored in a memory, and a memory access control part entirely manages all accesses to the memory with respect to the digital image signal. An image processing part converts the digital image signal stored in the memory into an output image signal to be supplied to an imaging unit outputting a visible image based on the output image signal so that a pixel density of the output image signal is higher than a pixel density of the digital image signal read from the memory and an amount of the output image signal is less than an amount of the digital image signal stored in the memory. Accordingly, the central controlled memory is shared by a plurality of functions so as to effectively use the memory, and a high-quality image can be produced by carrying out a density conversion so as to match the pixel density.
First Embodiment FIG. 3 through FIG. 16 show an image-processing apparatus and method and a recording medium according to a first embodiment of the present invention. FIG. 3 is a circuit block diagram of a multi-function apparatus (MFP) 1 according to the first embodiment of the present invention.
Second Embodiment A description will now be given, with reference to FIGS. 17 through 22, of an image-processing apparatus and method according to a second embodiment of the present invention. The image-processing apparatus according to the present embodiment has the same whole composition as the image-processing apparatus according to the first embodiment, and a description thereof will be omitted. FIG. 17 is a block diagram showing an outline composition of a frame memory and an image memory access control part (IMAC) according to the present embodiment. In FIG. 17, data output from a data control part 91 of the CDIC 4 is supplied to the IMAC 12, which is a memory controller, via the parallel bus 21 such as a PCI bus. The IMAC 12 is provided with a high-density conversion part 12 a and a code conversion part 82. The high-density conversion part 12 a converts imaged data of M dpi/N values sent from the data control part 91 into image data of a still higher-density of m dpi/n values (M<m, N>n). The code conversion part 82 performs a code conversion process of data from the MEM 13.
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