Amplifiers – With periodic switching input-output
Reexamination Certificate
2006-01-10
2006-01-10
Jeanpierre, Peguy (Department: 2819)
Amplifiers
With periodic switching input-output
C330S069000, C330S010000, C341S155000, C341S161000
Reexamination Certificate
active
06985030
ABSTRACT:
A differential amplifier has an in-phase input terminal to which an input signal is applied through a first switching unit, an anti-phase input terminal to which a reference signal is applied through a second switching unit, and a third switching unit between the in-phase and anti-phase input terminals. The potential difference between the in-phase and anti-phase input terminals is differentially amplified by setting the first and second switching units to be on and the third switching unit to be off. Also, the in-phase and anti-phase input terminals are short-circuited to have a high impedance by setting the first and second switching units to be off and the third switching unit to be on.
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Katsuta Hideyuki
Shimizu Yasuhide
Yamashita Yukitoshi
Yokoyama Nobuhiko
Mai Lam T.
Sonnenschein Nath & Rosenthal LLP
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