Concatenated surface wave delay line correlator

Details Concatenated surface wave delay line correlator Concatenated surface wave delay line correlator

1974-06-12

1976-03-02

Brody, Alfred L.

Modulators

Amplitude modulator

Nonlinear device controlled by modulating signal

235181, 332 26, 333 30R, H03C 328, H03H 914

Patent

active

039421350

ABSTRACT:
A concatenated surface wave device having delay line capabilities for use in correlating electric signals of various types and forms including analog signals, binary signals, and binary modulated signals, said device including means forming a specially constructed conductive surface pattern over which the signals to be correlated are propagated, said surface pattern including input transducer means at a location where input signals to be correlated are introduced for propagation over the surface, a plurality of tap locations on the surface at spaced locations extending away from the input transducer means, and means for sampling a propagated signal at selected surface locations including at selected ones of said tap locations to determine the locations of places where the signals to be correlated are in agreement and are and are in disagreement. The subject correlator also includes means by which signal components can be introduced at selected tap locations along the device.

REFERENCES:
patent: 3479572 (1969-11-01), Pokorny
patent: 3551837 (1970-12-01), Speiser et al.
patent: 3675163 (1972-07-01), Hartmann et al.
patent: 3818382 (1974-06-01), Holland et al.
patent: 3831044 (1974-08-01), Speiser
patent: 3831116 (1974-08-01), Davis et al.
patent: 3833867 (1974-09-01), Solie

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