Method for elaborating a transmission signal and transmitter with amplifying cells for implementing same
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United States of America Patent
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Dec 2, 2003
Grant Date -
N/A
app pub date -
Jan 10, 2001
filing date -
Jul 10, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Transmitter systems in which an output signal is obtained by the summation of signals with predetermined discreet levels given by several amplification cells. Given a signal to be sent with an amplitude A and a phase .phi..sub.0, a control circuit determines (.alpha.) a number of amplification cells sufficient to obtain slightly more than the value A with the phase .phi..sub.0 but to carry out a phase adjustment (.beta.) such that at least two of the cells are phase-shifted, one in advance and the other delayed with respect to .phi..sub.0, so that the total sum of the signals delivered by the cells gives the signal A, .phi..sub.0. Such transmission may find particular application to amplification cell transmitters with discrete output levels.
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