Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By shape
Patent
1993-04-30
1995-01-03
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By shape
327 78, 327263, 327361, H03K 5153, H03K 522
Patent
active
053789466
ABSTRACT:
Two edge detectors (12, 13) at the input (10.1) and the output (10.2) of a delay line (10) of the edge detector arrangement (11) generate detection signals of identical shape at the detected signal edges of a signal traveling over the delay line. The delay time of the delay line is selected so that the two detection signals partly overlap in time. A subtraction arrangement (16) generates, from the two detection signals, a difference signal that contains, in the overlap region, a zero crossing that can be detected by a zero crossing detector (17). At the time of this zero crossing, the zero crossing detector generates the switching edge of an edge detection signal that controls, for example, a signal switcher (9).
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Callahan Timothy P.
Nokia Technology GmbH
Nu Ton My-Trang
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