Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1977-04-25
1978-09-26
Miller, Jr., Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307238, 328 56, 340347SH, H03K 500
Patent
active
041174097
ABSTRACT:
A system utilizing a tapped or recirculating delay line to effectively slow down a time duration limited signal such that it may be sampled at a slower rate yet preserve all the inherent information in the signal which may have a bandwidth higher than the inverse of the sampling rate. In the systems of the invention a selected number of delayed signal replicas are formed and sampled at selected intervals consistent with the A/D (analog to digital) converter capability. The delay per tap or the delay of the recirculating delay section is made larger than the time duration limited period and the output sampling interval is made equal to the delay per tap (or of the recirculating delay section) .+-. the input sampling interval all divided by the number of samples per signal replica. The number of sections of the tapped delay line or the number of recirculations may be selected to either provide a consecutive sampling sequence of the gated input pulse or a group of samples out of sequence which may be stored and identified after passing through an A to D converter. Thus a wideband time gated signal may be sampled at a relatively low speed and with a sampling device having a relatively small degree of complexity.
REFERENCES:
patent: 2891171 (1959-06-01), Shockley
patent: 3183448 (1965-05-01), Strother, Jr. et al.
patent: 3491304 (1970-01-01), Justus et al.
patent: 3638007 (1972-01-01), Brooks
patent: 3639846 (1972-02-01), Justice
Adam Walter J.
Davis B. P.
Hughes Aircraft Company
MacAllister W. H.
Miller, Jr. Stanley D.
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