Communications: directive radio wave systems and devices (e.g. – Radar ew – Ecm
Reexamination Certificate
2006-12-26
2006-12-26
Gregory, Bernarr E. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Radar ew
Ecm
C342S013000, C342S014000, C342S082000, C342S089000, C342S175000, C342S195000, C375S229000, C375S316000, C327S105000, C327S106000, C708S270000, C708S271000
Reexamination Certificate
active
07154431
ABSTRACT:
A digital synthesizer includes a digital radio frequency memory (DRFM) for storing phase values and corresponding digital signals. The digital synthesizer includes a digital processing circuit receiving input from the DRFM, the circuit including tapped delay lines and a summer summing the output of the tapped delay lines. The digital synthesizer includes a signal modulator independently synthesizing within each tapped delay line a frequency modulated and gain scaled signal, wherein input to the tapped delay lines are phase values from the DRFM.
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Pace Phillip E.
Surratt Robert E.
Yeo Siew-Yam
Gregory Bernarr E.
Karasek John J.
Koshy Suresh
The United States of America as represented by the Secretary of
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