Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By amplitude
Reexamination Certificate
2011-06-28
2011-06-28
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By amplitude
C327S093000, C327S307000, C327S337000, C327S554000
Reexamination Certificate
active
07969204
ABSTRACT:
A sample hold circuit and a method for eliminating the offset voltage of the analog signal are provided. The sample hold circuit includes a sample unit, a plurality of capacitors, a control unit and a hold unit. When the sample hold circuit is in a first state, the sample unit samples an analog signal. When the sample hold circuit is in a second state, the capacitors eliminate a DC offset voltage of the analog signal sampled by the sample unit, and the hold unit outputs an AC signal of the analog signal sampled by the sample unit. The control unit adjusts a number of the capacitances coupled to a common voltage according to a magnitude of the DC offset voltage, thus to determine the capacitance for eliminating the DC offset voltage.
REFERENCES:
patent: 4707624 (1987-11-01), Yee
patent: 6147551 (2000-11-01), Hong
patent: 6351506 (2002-02-01), Lewicki
patent: 6529237 (2003-03-01), Tsay et al.
patent: 7348838 (2008-03-01), Ranganathan et al.
patent: 2011/0043286 (2011-02-01), Youngblood
Donovan Lincoln
Hernandez William
Himax Media Solutions, Inc.
Jianq Chyun IP Office
LandOfFree
Sample hold circuit and method thereof for eliminating... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sample hold circuit and method thereof for eliminating..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sample hold circuit and method thereof for eliminating... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2742221