发明名称 |
An optical signal processor |
摘要 |
<p>The present invention provides an optical signal processor for the optical processing of a digitally amplitude-modulated optical signal input thereto, to determine the presence or absence of a predetermined digital bit-pattern within said optical signal, the optical signal processor possessing optical processing means including;
signal duplicating means operable to derive from said input digital optical signal one or more duplicate digital optical signals which are each a duplicate of the digital bit-patterns present within the input optical signal;signal duplicating and inverting means operable to derive from said input digital optical signal one or more polarity-inverted duplicate digital optical signals, the polarity of each bit of which is the inverse of that of the signal bit from which it is derived, wherein;the optical processing means is operable to derive from said duplicate signals and said polarity-inverted duplicate signals an optical detection signal which indicates the presence or absence of said predetermined amplitude-modulated digital bit-pattern within the input digital signal processed thereby.</p> |
申请公布号 |
EP1185008(A3) |
申请公布日期 |
2006.02.01 |
申请号 |
EP20010307377 |
申请日期 |
2001.08.30 |
申请人 |
ALCATEL |
发明人 |
LOONG, LEE HENG;DIMEONIDOU, DIMITRA |
分类号 |
G02F2/02;G02F3/00;H04B10/299;H04Q11/00 |
主分类号 |
G02F2/02 |
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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