基本信息:
- 专利标题： 图像处理设备、图像读取设备和图像形成设备
- 专利标题（英）：Image processing apparatus, image reading apparatus, and image forming apparatus
- 申请号：CN200610143715.8 申请日：2006-11-02
- 公开(公告)号：CN1972365A 公开(公告)日：2007-05-30
- 发明人： 南崇博 , 森本智
- 申请人： 夏普株式会社
- 申请人地址： 日本大阪
- 专利权人： 夏普株式会社
- 当前专利权人： 夏普株式会社
- 当前专利权人地址： 日本大阪
- 代理机构： 北京纪凯知识产权代理有限公司
- 代理人： 龙淳
- 优先权： 2005－340499 2005.11.25 JP
- 主分类号： H04N1/40
- IPC分类号： H04N1/40 ; H04N1/56 ; H04N1/024
An apparatus includes a CCD that reads a script image, an analog front end unit (AFE) that adjusts the offset and the gain of an image signal and A/D-converts the image signal, an image processing IC that applies image processing such as shading correction, input gamma correction, color correction, MTF correction, output gamma correction to the digital image signal, and a spread spectrum frequency IC that generates a spread spectrum clock based on a source oscillation clock, wherein the former block of the image processing unit is driven with the source oscillation clock and the latter block is driven with the spread spectrum clock. The image signal is transferred asynchronously from the former block to the latter block through an external memory controller.
公开/授权文献:
- CN100446539C 图像处理设备、图像读取设备和图像形成设备 公开/授权日：2008-12-24