Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Slope control of leading or trailing edge of rectangular or...
Reexamination Certificate
2007-11-13
2007-11-13
Lam, Tuan T. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Slope control of leading or trailing edge of rectangular or...
C327S380000, C327S381000, C327S382000, C327S263000, C327S284000
Reexamination Certificate
active
10990863
ABSTRACT:
The present invention relates generally to a buffer of a drive Integrated Circuit (IC) and, more particularly, to a buffer of a drive IC for driving a spatial light modulator that can meet a desired dynamic slew rate characteristic by controlling current that affects a slew rate. The buffer capable of controlling the slew rate includes a first amplifier connected to the output terminal of the Digital/Analog (D/A) converter of an IC, and adapted to receive output voltage of the D/A converter and inversely amplify the output voltage, a second amplifier adapted to again inversely amplify output voltage that has been inversely amplified by the first amplifier, a charging means connected to the output and input terminals of the second amplifier, and adapted to be charged with the output voltage of the first amplifier, and a current control unit connected to the output terminal of the first amplifier and the input terminal of the second amplifier, and adapted to control the output voltage of the current control unit.
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Go Chae-Dong
Kim Byung-Hoon
Kwon Kyoung-Soo
Park Chan-Woo
Gottlieb Rackman & Reisman P.C.
Lam Tuan T.
Nguyen Hiep
Samsung Electro-Mechanics Co. Ltd
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