Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – Nonlinear amplifying circuit
Reexamination Certificate
2006-05-30
2006-05-30
Nguyen, Long (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
Nonlinear amplifying circuit
C327S562000, C330S258000
Reexamination Certificate
active
07053698
ABSTRACT:
Methods and circuits for extracting a true mean of two signals are provided. A first amplifier input stage (e.g., an n-type stage) is operated when a mean of the two signals approaches an upper rail voltage. A second amplifier input stage (e.g., a p-type stage) is operated when the mean of the two signals approaches a lower rail voltage. A transitioning circuit controls how much each of the first and the second amplifier input stages contributes to an input of a high-gain amplifier output stage, when the mean of the two signal does not approach either of the rail voltages. An output of the high-gain amplifier output stage is fed back to both the first and second amplifier input stages via a feedback stage, which can be a matched buffer stage.
REFERENCES:
patent: 4797631 (1989-01-01), Hsu et al.
patent: 6150883 (2000-11-01), Ivanov
patent: 6356153 (2002-03-01), Ivanov et al.
patent: 6441649 (2002-08-01), Martin et al.
patent: 6867643 (2005-03-01), Mole
patent: 2002/0084838 (2002-07-01), Martin et al.
Elantec Semiconductor Inc.
Fliesler & Meyer LLP
Nguyen Long
LandOfFree
Methods for extracting the mean (common mode) voltage of two... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods for extracting the mean (common mode) voltage of two..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods for extracting the mean (common mode) voltage of two... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3554622