U.S. Philips Corporation

Alwin F Habeck

Walter H Demmer

Jurgen Ruprecht

Detlef W Oldach

An input signal comprising pulses in periodical intervals and being present as a series of digital sampling values is applied to a correlator for generating a correlator output signal which assumes an extreme value in the case of a pulse. The correlator comprises a chain of at least two cascaded delay members, the first of which receives the input signal. A pulse and pulse-free interval, respectively is associated with each delay member of the series, the delay members succeeding each other in the same manner as the pulses or pulse-free intervals occur. All but at most one delay member at the beginning or end of the chain can store just all sampling values of the associated pulse or pulse-free interval. The input signal of the first delay member and the output signals of all delay members are applied to a combination circuit which linearly combines and integrates the signals and forms the output signal of the correlator.

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Hamburg, Germany

Alwin F Habeck