Amplifiers – With plural amplifier channels – Redundant amplifier circuits
Reexamination Certificate
2006-12-29
2008-10-14
Nguyen, Patricia (Department: 2817)
Amplifiers
With plural amplifier channels
Redundant amplifier circuits
C330S254000, C330S053000
Reexamination Certificate
active
07436260
ABSTRACT:
An electronic device where the ratio between two amplification factors of two amplifiers, called main amplifiers, is adjusted using a control means. The control means constantly equalizes the output signals of the two main amplifiers by adapting one of the control signals. The output signals are acted on in order to adjust the control signals. Owing to the fact that the input signals are in a ratio N, this same ratio is obtained between the amplification factors of the two main amplifiers. The two main control signals, used to control the main amplifiers, are employed for controlling any other amplification factor of at least two other amplifiers or groups of amplifiers, so as to establish a ratio N between these other amplification factors. The main circuit thus allows N to be applied and regulated between the amplification factors of other amplifiers.
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Cathelin Andreia
Chamla David
Kaiser Andreas
Nguyen Patricia
STMicroelectronics SA
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