发明名称 |
Method and apparatus for forming an image using signals synchronized with scanning |
摘要 |
A method and apparatus for forming an image reduce the processing load on a video controller. A CPU causes a counter to start counting the optical beam detection signals of a photodiode in accordance with a signal which indicates the leading edge of a sheet of recording paper received from a TOP sensor. Comparators compare the count value issued from the counter with the values set by the CPU at registers. Based on the comparison result, an F/F sets Q output. Thus, a BD signal is issued through a gate during a period specified by the values set at the registers. The use of the BD signal reduces the processing load on the video controller which generates and transfers an image signal.
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申请公布号 |
US6262759(B1) |
申请公布日期 |
2001.07.17 |
申请号 |
US19980025745 |
申请日期 |
1998.02.18 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
AKIYAMA SATOSHI;HORI KENJIRO;KURAMOCHI YOSHIMI;SHIBATA AKIHIRO;KISHIDA TETSUO;SUZUKI KOICHI |
分类号 |
B41J2/51;B41J2/44;G06K15/12;H04N1/047;H04N1/113;H04N1/12;(IPC1-7):B41J2/435 |
主分类号 |
B41J2/51 |
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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