Amplifiers – Combined with automatic amplifier disabling switch means
Reexamination Certificate
2008-01-11
2010-10-19
Choe, Henry K (Department: 2817)
Amplifiers
Combined with automatic amplifier disabling switch means
C330S261000
Reexamination Certificate
active
07816983
ABSTRACT:
A differential-pair amplifier comprising a transistor pair. The differential-pair amplifier includes a current source coupled to the transistor pair for providing a bias current to the transistor pair. The differential-pair amplifier also includes a switching mechanism coupled to the transistor pair for steering the bias current away from the transistor pair when disabling the amplifier operation. A system and method in accordance with the present invention allows fast enabling and disabling of a differential-pair amplifier. This fast switching technique can be used in the signal paths where the switching time is critical.
REFERENCES:
patent: 3431505 (1969-03-01), Agostino
patent: 3508161 (1970-04-01), Bingham
patent: 5818300 (1998-10-01), Hirano
patent: 6577195 (2003-06-01), Newtown
Choe Henry K
Ralink Technology Corporation
Sawyer Law Group P.C.
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