Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate
2007-01-09
2007-01-09
Le, Que (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
C250S559320
Reexamination Certificate
active
10476207
ABSTRACT:
A method for measuring a parameter of a movement of an object, in which a series of successive first time-spaced linear images and a second spaced linear image are taken, (a) a first development of first linear images and (b) a second development consisting of at least one second image are formed, and linear images of the first development are compared at least partly with at least a part of a linear image of the second development to determine the part of a spaced linear image of the first development which best corresponds to a part of a linear image of the second development.
REFERENCES:
patent: 4495589 (1985-01-01), Hirzel
patent: 4580894 (1986-04-01), Wojcik
patent: 4671650 (1987-06-01), Hirzel et al.
patent: 6118132 (2000-09-01), Tullis
patent: WO 96/22537 (1996-07-01), None
Bui-Pho Pascal M.
Hovey & Williams, LLP
Le Que
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