发明名称 |
Print band timing mark detector |
摘要 |
In the print band timing system described herein, the bipolar pulse generated in a sensor by the passage of a print band timing mark is applied to a discriminating circuit which compares the pulse signal with a voltage level substantially equal to the nominal d.c. level of the sensor signal. Hystereis is provided in one direction only so that the nominal zero crossing is precisely determined in a time position relationship.
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申请公布号 |
US4665820(A) |
申请公布日期 |
1987.05.19 |
申请号 |
US19860834770 |
申请日期 |
1986.02.28 |
申请人 |
CENTRONICS DATA COMPUTER CORP. |
发明人 |
CHAPMAN, WALTER C. |
分类号 |
B41J1/20;(IPC1-7):B41J1/20 |
主分类号 |
B41J1/20 |
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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