Amplifiers – With semiconductor amplifying device – Including differential amplifier
Reexamination Certificate
2007-09-19
2009-08-11
Choe, Henry K (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including differential amplifier
C330S009000
Reexamination Certificate
active
07573334
ABSTRACT:
Embodiments of the invention comprise methods, apparatuses and systems for a dynamic bias control circuit configured to dynamically bias an amplifier. The dynamic bias control circuitry includes four branches. Each of the four branches includes a transistor operably coupled in series between a current source and a reference voltage. Each branch also includes a storage element having a first terminal and a second terminal and configured for selectively coupling the first terminal to the reference voltage, selectively coupling the first terminal to a node located between the current source and a drain of the transistor, selectively coupling the second terminal to the node, and selectively coupling the second terminal to an output.
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Aptina Imaging Corporation
Choe Henry K
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