Amplifiers – With semiconductor amplifying device – Including class d amplifier
Reexamination Certificate
2007-06-05
2007-06-05
Mottola, Steven J. (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including class d amplifier
C330S259000
Reexamination Certificate
active
11103515
ABSTRACT:
In a differential output circuit, a second amplifier has a positive terminal connected to a second fixed potential and a negative terminal to a fifth switch at a first terminal. First and second switches are connected at a point connected to the fifth switch at a second terminal and to a first load. Third and fourth switches are connected at a point connected to the fifth switch at a third terminal and to a second load. The second terminal is connected to the first terminal when the second and third switches turn on. The third terminal is connected to the first terminal when the first and fourth switches turn on.
REFERENCES:
patent: 5977796 (1999-11-01), Gabara
patent: 2004/0124918 (2004-07-01), Radelinow
patent: 2000-134082 (2000-05-01), None
Aoyagi Keisuke
Nagano Hideo
Suzuki Masao
McDermott Will & Emery LLP
Mottola Steven J.
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