Modulators – Pulse or interrupted continuous wave modulator
Reexamination Certificate
2007-09-11
2007-09-11
Kinkead, Arnold (Department: 2817)
Modulators
Pulse or interrupted continuous wave modulator
C332S109000, C332S112000, C375S239000
Reexamination Certificate
active
10420124
ABSTRACT:
The invention is a method for pulse position modulating signals which are synchronized to clocked bit periods using a clock comprising the steps of generating two, three or n signals to mark the presence of digital ones during corresponding n time slots occurring during the same bit period. The two, three or n signals are combined into a single data channel to utilize abrupt phase changes of pulses in a carrier signal at a carrier frequency, the phase changes having a very short duration to mark the presence of digital ones only. The combination of the n signals into a single data channel comprises gating each of the n signals in a sequence of serially delayed time slots corresponding to each of the n signals during a portion of the same bit period in the single data channel during time positions reserved for unexpressed zeroes.
REFERENCES:
patent: 4206316 (1980-06-01), Burnsweig et al.
patent: 6445737 (2002-09-01), Walker
Kinkead Arnold
Myers Dawes Andras & Sherman LLP
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