发明名称 |
Adaptive decision threshold setting circuit |
摘要 |
An input digital signal developed by a signal source e.g. photodiode 33 is time-averaged (RA, CA) and mirrored by current mirror 22 to generate one or more decision thresholds. The thresholds may be a set or variable fraction of the average current and track any variation in the average current. This obviates the need for limiting or AGC amplifiers that would otherwise be necessary to maintain the input signal level constant if the thresholds were fixed. <IMAGE>
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申请公布号 |
GB2293931(A) |
申请公布日期 |
1996.04.10 |
申请号 |
GB19940020269 |
申请日期 |
1994.10.07 |
申请人 |
* NORTHERN TELECOM LIMITED |
发明人 |
BIPINCHANDRA * PATEL |
分类号 |
H03G1/00;H03K5/08;H04B10/158;H04L25/06;(IPC1-7):H04B10/158 |
主分类号 |
H03G1/00 |
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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