Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Reexamination Certificate
2008-01-01
2008-01-01
Nguyen, Cuong (Department: 3661)
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
C701S200000, C345S166000, C382S305000, C382S106000, C382S107000, C250S221000, C257SE27133, C356S520000
Reexamination Certificate
active
10870412
ABSTRACT:
A technique for optical navigation involves summing intensity values from a photodetector array on a per-column and a per-row basis for both reference image data and sample image data and then performing separate one-dimensional cross-correlations on the per-column sums and on the per-row sums to separately determine displacement in the x and y directions, respectively.
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Kong Heng Yew
Siah Tiong Heng
Avago Technologies ECBU IP (Singapore) Pte Ltd.
Nguyen Cuong
LandOfFree
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