Television – Special applications – With endoscope
Reexamination Certificate
2007-03-06
2011-10-25
Wang, Liangche A (Department: 2447)
Television
Special applications
With endoscope
C348S081000, C348S161000
Reexamination Certificate
active
08044999
ABSTRACT:
An image enhancer that includes a laser for emitting an optical signal toward an object in a turbid medium, a modulator for modulating laser intensity of the optical signal, an RF source for driving the modulator and for providing a reference signal, an optical detector for detecting the modulated optical signal that is reflected from the object, the optical detector converting the reflected optical signal into an electrical signal, the electrical signal having RF and DC components, an I/Q demodulator for mixing the RF component of the electrical signal with the reference signal and producing in-phase and quadrature phase signal components that can be digitized and processed such that both contrast and range images of the object are produced.
REFERENCES:
patent: 4935616 (1990-06-01), Scott
patent: 5091778 (1992-02-01), Keeler
patent: 5822047 (1998-10-01), Contarino et al.
patent: 5963658 (1999-10-01), Klibanov et al.
patent: 6041248 (2000-03-01), Wang
patent: 6208415 (2001-03-01), De Boer et al.
patent: 6738653 (2004-05-01), Sfez et al.
patent: 7006676 (2006-02-01), Zeylikovich et al.
patent: 7761139 (2010-07-01), Tearney et al.
patent: 7804518 (2010-09-01), Schechner et al.
L.Mullen, A.Laux, B.Concannon, E.P.Zege, I.L.Katsev, A.S.Prikhach; Amplitude-modulated laser imager; Applied Optics, Jul. 1, 2004; vol. 43, No. 19; p. 3874-3892.
M.E.Zevallos, S.K.Gayen, M.Alrubaiee, R.R.Alfano;Time-gated backscattered ballistic light imaging of objects in turbid water; Applied Physics Letters, 86, Nov. 1, 2004.
Cochenour Brandon
Laux Alan E.
Mullen Linda J.
Glut Mark O.
The United States of America as represented by the Secretary of
Wang Liangche A
LandOfFree
Image enhancer for detecting and identifying objects in... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Image enhancer for detecting and identifying objects in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image enhancer for detecting and identifying objects in... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4282932