Pulse or digital communications – Systems using alternating or pulsating current
Reexamination Certificate
2005-08-16
2005-08-16
Chin, Stephen (Department: 2634)
Pulse or digital communications
Systems using alternating or pulsating current
C375S295000
Reexamination Certificate
active
06931074
ABSTRACT:
A software-defined radio (12) includes a transmitter (20) having any number of upstream modules (30) and any number of downstream modules (34). The upstream modules (30) perform signal processing on input signals (28), and the downstream modules (34) provide an RF interface for processed signals (58). The upstream modules (30) and downstream modules (34) couple to a common intra-transmitter signal transporter (32), which may be implemented as a bus. Programmable transmission parameters (60) which program the downstream modules (34) to generate a communication signal (18) exhibiting desired attributes such as frequency and keying are mingled with the processed input signal (58) in upstream modules (30) to preserve timing. The programmable transmission parameters (60) are extracted in downstream modules (34), and applied to the communication signal (18) at the timing specified by position relative to the processed input signal (58).
REFERENCES:
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patent: 5426668 (1995-06-01), Lechleider
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patent: 6304594 (2001-10-01), Salinger
patent: 6553076 (2003-04-01), Huang
Durkin Mike F.
Palermo Keith C.
Chin Stephen
General Dynamics Decision Systems, Inc.
Gresham Lowell W.
Meschkow Jordan M.
Meschkow & Gresham P.L.C.
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