Nano position sensing and surface estimation in scanning...

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Reexamination Certificate

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Reexamination Certificate

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07401502

ABSTRACT:
A substitute reference signal input is incorporated into a state space controller for a scanning probe microscope to improve tracking efficiency.

REFERENCES:
patent: 5804710 (1998-09-01), Mamin et al.
patent: 6181131 (2001-01-01), Bruland et al.
patent: 7066014 (2006-06-01), Salapaka et al.
patent: 7155964 (2007-01-01), Huang et al.
patent: 7289868 (2007-10-01), Picciotto et al.
patent: 7313948 (2008-01-01), Salapaka et al.
patent: 2006/0225490 (2006-10-01), Xi et al.

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