Amplifiers – With semiconductor amplifying device – Including differential amplifier
Reexamination Certificate
2006-03-07
2006-03-07
Choe, Henry (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including differential amplifier
C330S261000
Reexamination Certificate
active
07009449
ABSTRACT:
An amplifier arrangement includes a variable-gain signal amplifier. A control block is used to process a control signal in order to set the gain. A trimming unit acts on the control block such that signals which are produced by the control block can be trimmed relative to one another in order to set the gain of the signal amplifier.
REFERENCES:
patent: 5606272 (1997-02-01), Behbahani et al.
patent: 5812025 (1998-09-01), Shimazaki
patent: 6661287 (2003-12-01), Lin et al.
patent: 6791414 (2004-09-01), Trodd et al.
Fuchs Hans-Peter
Haberl Manfred
Habring Gerhard
Scheiber Andreas
Stephelbauer Carl
Choe Henry
Eschweiler & Associates LLC
Infineon - Technologies AG
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