Modulators – Amplitude modulator
Reexamination Certificate
2011-08-23
2011-08-23
Mis, David (Department: 2817)
Modulators
Amplitude modulator
C332S145000, C332S151000, C332S152000, C330S010000
Reexamination Certificate
active
08004368
ABSTRACT:
A digital amplitude modulator. The digital amplitude modulator is configured to modulate the amplitude of an input carrier signal based on input digital data and generate a corresponding output signal. The digital amplitude modulator includes a first variable gain amplifier for receiving the input carrier signal and generating a corresponding first amplified carrier signal, a second variable gain amplifier for receiving the input digital data and generating corresponding digital amplitude control data and a plurality of selectively activatable amplifier stages. Each amplifier stage receives a replica of the first amplified carrier signal and generates a corresponding second amplified carrier signal when activated. The output signal corresponds to a combination of the second amplified carrier signals generated by the activated amplifier stages.
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Search Report for Italian Patent Application No. MI2008A1642; Jun. 23, 2009.
Carrara Francesco
Palmisano Guiseppe
Presti Calogero Davide
Scuderi Antonino
Graybeal Jackson LLP
Jablonski Kevin D.
Jorgenson Lisa K.
Mis David
STMicroelectronics S.r.l.
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