Device and method for detecting a useful signal in a receiver

Electrical computers: arithmetic processing and calculating – Electrical digital calculating computer – Particular function performed

Reexamination Certificate

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C375S343000

Reexamination Certificate

active

07631029

ABSTRACT:
The device for detecting a useful signal comprises an autocorrelation unit (AK) for autocorrelating a signal (s(t)) which can contain a periodic signal, and a cross correlation unit (CK) for cross correlating the signal s(t) with a known signal (b(t)). Further, the device comprises a logic unit (VE) for logically combining outputs of the autocorrelation unit (AK) and of the cross correlation unit (CK) which outputs a combinatorial signal (d(t)) which specifies whether the useful signal has been detected.

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