发明名称 |
Pixel Clock Generating Device and Image Forming Apparatus |
摘要 |
<p>A pixel clock generating device includes a time interval detection unit detecting a time interval between a first signal and a second signal in each of cyclically repeating N (‰§ 2) time periods; a comparing unit cyclically selecting a target value from N target values corresponding to the N time periods and outputting an error indicating a difference between the detected time interval and the selected target value for each of the N time periods; a frequency calculation unit correcting a frequency of the pixel clock signal based on the error and cyclically generating a frequency specification signal indicating the corrected frequency for each of the N time periods; a high-frequency clock generating unit generating a high-frequency clock signal; and a pixel clock generating unit generating a pixel clock signal based on the frequency specification signal and the high-frequency clock signal.</p> |
申请公布号 |
EP2365689(A2) |
申请公布日期 |
2011.09.14 |
申请号 |
EP20110157611 |
申请日期 |
2011.03.10 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
MASUI, NARUHIRO |
分类号 |
H04N1/053;G02B26/12;G03G15/01;G03G15/04;G06K15/12;H04N1/113;H04N1/50 |
主分类号 |
H04N1/053 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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