IMAGE RECORDER
申请(专利)号： JP19880174560
专利号： JPH0224179A 主分类号： B41J19/00
申请权利人： MATSUSHITA
ELECTRIC IND CO LTD 公开国代码： JP 优先权国家： JP
摘 要：
PURPOSE:To absorb irregularity in rotation of a drum by counting circle-dividing pulses from an encode means only excepting a recording area.
CONSTITUTION:Two types of signals REZ1 and REA1 are outputted from a rotary encoder 5 connected directly onto an axle of a drum 1 with a micro coupling or the like and the signals REZ1 and REA1 become pulse trains following
variation in rotation. The REZ1 and REA1 are shaped via waveform shaping circuits 6, 7 to become signals REZ2 and REA2. When the signal REA2 is inputted to a latch 8 to become H, a counter 9 turns from a load mode to a count mode, and starts counting by input of a falling edge. A counter 9 counts down a value preset with a DIP switch 10. When said value becomes zero, the counter 9 outputs an output signal CL. By taking a leading edge of the signal REA2 as an origin, a signal BL prepared by counting the
申请日： 1988-07-13 公开公告日： 1990-01-26
分类号： B41J19/00;
B41J2/51; H04N1/06; H04N1/40 发明设计人： TSUDA YUKIFUMI;
MOGI YUJI;
HIGUCHI SADASHI 申请国代码： JP
优先权： 19880713 JP
17456088
摘 要 附 图：
number of pulses of the signal REA2 is sent to a gate 11. A DOTC signal is formed only for a L period, is sent to a carrier generation circuit 12, and a CA signal of which a phase is locked in the DOTC signal is outputted from the carrier generation circuit 12. 主权项：
权 利 要 求 说 明 书
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IMAGE RECORDER
