Pulse or digital communications – Receivers – Automatic baseline or threshold adjustment
Reexamination Certificate
2006-09-05
2006-09-05
Fan, Chieh M. (Department: 2611)
Pulse or digital communications
Receivers
Automatic baseline or threshold adjustment
C375S297000, C375S295000, C375S319000, C455S126000, C455S127500
Reexamination Certificate
active
07103114
ABSTRACT:
The invention relates to a transmitter of radio signals (SMS), which are amplitude-modulated according to a discrete plurality of amplitude levels, in which at least one output power transistor (6) receives, on one of its terminals, a bias-voltage level which is adapted to the amplitude level represented by the instantaneous value of a selection signal (SS) generated by analysis means (11) on the basis of the digital control signals (1). The electrical consumption is hence optimized.
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Gary Hanington et al., International Microwave Symposium, Baltimore, 1998 IEEE MTT-S Digest WE2C-6 p. 589-592 “Microwave Power Amplifier Efficiency Improvement With a 10 MHz HBT DC-DC Converter”.
Centre National d'Etude Spatiales (C.N.E.S.)
Fan Chieh M.
Young & Thompson
Zheng Eva
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