Optical communications – Optical communication over freee space – Transceivers
Reexamination Certificate
2006-10-10
2006-10-10
Pascal, Leslie (Department: 2613)
Optical communications
Optical communication over freee space
Transceivers
C398S118000, C398S131000
Reexamination Certificate
active
07120363
ABSTRACT:
The present invention provides a method and apparatus for free-space optical communication. The method comprises the steps of receiving a receive optical beam through a narrow field of view, determining a receive power level, shifting an alignment, maximizing the receive power, and transmitting a transmit optical beam along the alignment, wherein the narrow field of view is less than a divergence of the transmit optical beam. The narrow field of view can be a narrow region of a multi-region field of view. The apparatus comprises an optical beam transmitter configured to generate a narrow diverging transmit beam, a narrow field of view optical receiver, wherein the field of view is less than the divergence of the transmit beam, and a controller configured to determine a power level of a receive beam and to determine adjustments to a direction of transmission maximizing receive power.
REFERENCES:
patent: 5268978 (1993-12-01), Po et al.
patent: 5475520 (1995-12-01), Wissinger
patent: 5592320 (1997-01-01), Wissinger
patent: 5777768 (1998-07-01), Korevaar
patent: 5838470 (1998-11-01), Radehaus et al.
patent: 6008923 (1999-12-01), Samdahl et al.
patent: 6122084 (2000-09-01), Britz et al.
patent: 6239888 (2001-05-01), Willebrand
patent: 6323980 (2001-11-01), Bloom
patent: 6347001 (2002-02-01), Arnold et al.
patent: 6462847 (2002-10-01), Willebrand
patent: 6469815 (2002-10-01), Poon et al.
patent: 6504634 (2003-01-01), Chan et al.
patent: 6657783 (2003-12-01), Presby et al.
patent: 6665546 (2003-12-01), Slaughter et al.
patent: 6792185 (2004-09-01), Ahrens et al.
patent: 6801722 (2004-10-01), Webb et al.
patent: 6832859 (2004-12-01), Bell et al.
patent: 6956876 (2005-10-01), Aquaro et al.
patent: 6968133 (2005-11-01), Sakanaka et al.
patent: 2002/0071160 (2002-06-01), Pavelchek
patent: 2002/0126340 (2002-09-01), Nikiforov et al.
patent: 2004/0141753 (2004-07-01), Andreu-von Euw et al.
patent: 2004/0208272 (2004-10-01), Moursund et al.
patent: WO 01/05069 (2001-01-01), None
Mirriam-Webster's Collegiate Dictionary, 10th Edition; Merriam-Webster, Inc.; Copyright 2000; p. 255 and 590.
K. E. Wilson et al.; “Preliminary Results of the Ground-Orbiter Lasercomm Demonstration Experiment between Table Mountain and the ETS-VI Satellite”,Society of Photo-Optical Instrumentation Engineers,vol. 2699; pp. 121-132 (1996).
Patent Cooperation Treaty, International Search Report, Feb. 10, 2005.
U.S. International Searching Authority, “International Search Report”, cited in corresponding International Patent Application No. PCT/US04/00703, dated Feb. 15, 2005, 4 pages.
U.S. International Searching Authority, “Written Opinion of the International Search Report”, cited in corresponding International Patetn Application No. PCT/US04/00703, dated Feb. 15, 2006, 6 pages.
Andreu-von Euw Christian
Möller Olaf
Neff Brian W.
Oscolai Cathal
Curs Nathan
Fitch Even Tabin & Flannery
LightPointe Communications, Inc.
Pascal Leslie
LandOfFree
Method and apparatus for maintaining optical alignment for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for maintaining optical alignment for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for maintaining optical alignment for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3688131