Amplifiers – With semiconductor amplifying device – Including differential amplifier
Reexamination Certificate
2007-11-15
2009-12-08
Pascal, Robert (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including differential amplifier
Reexamination Certificate
active
07629846
ABSTRACT:
Based on a result of comparing an output common mode direct-current voltage of a pair of source follower transistors when a direct-current voltage is applied to each gate of the pair of source follower transistors with a predetermined reference voltage, the direct-current voltage is controlled such that the output common mode direct-current voltage can match the reference voltage.
REFERENCES:
patent: 6727757 (2004-04-01), Venkatraman et al.
patent: 8-228115 (1996-09-01), None
Fujitsu Limited
Katten Muchin & Rosenman LLP
Nguyen Khiem D
Pascal Robert
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