Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1974-09-12
1976-04-13
Tubbesing, T. H.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
328155, 343 65LC, G01S 956
Patent
active
039507041
ABSTRACT:
A time delay period between a first signal and a delayed second signal is iminated, restoring the original time relationship between the two signals as derived from a common trigger signal which may vary in its repetition rate. Known, uniform time increments are defined by a constant frequency source producing pulses connectable to both a static shift register having a predetermined number of bits, and a counter having its maximum cumulative count set at the sum of the predetermined number of bits in the shift register and the number of uniform time increments in the time delay period between the first and second signals. The common trigger signal is operative to simultaneously connect the source of clocking pulses to actuate both the shift register and the counter. Upon reception the delayed second signal is connected to the input of the shift register and upon reaching the maximum cumulative count of the counter, the clocking pulses are disconnected from both the shift register and the counter. At the next successive trigger signal, the shift register is reactuated to produce a retimed second signal restored to its original time disposition relative to the first signal.
REFERENCES:
patent: 3302197 (1967-01-01), Humpherys
patent: 3305860 (1967-02-01), Humpherys
patent: 3686469 (1972-08-01), Clark et al.
patent: 3697991 (1972-10-01), Ohyama et al.
patent: 3721906 (1973-03-01), Geesen et al.
patent: 3805173 (1974-04-01), Nakamura et al.
patent: 3815031 (1974-06-01), Kirner
patent: 3866221 (1975-02-01), Hikosaka
McLaren J. W.
Montone G. E.
Rubens G. J.
Sciascia R. S.
The United States of America as represented by the Secretary of
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