Optical: systems and elements – Diffraction – Using fourier transform spatial filtering
Reexamination Certificate
2008-01-24
2008-12-30
Dang, Hung X (Department: 2873)
Optical: systems and elements
Diffraction
Using fourier transform spatial filtering
C359S558000, C359S337210, C250S23700G
Reexamination Certificate
active
07471454
ABSTRACT:
In some embodiments, a dynamic optical tag communication system is provided which includes high and low index CCR, both having a modulator, such as TCFP-MQWs on a first side of the CCR configured to modulate in a first temperature range, and a modulator on a second side of the CCR to modulate in a second temperature range. In some embodiments another high index CCR having corresponding first and second temperature range modulators is provided. In some embodiments, a CCR may have three modulators, such as MQWs, one configured to modulate in a first temperature range, another to modulate in a second temperature range, and yet another to modulate in a third temperature range. In some embodiments, a dynamic optical tag communication system has CCRs which include a high index CCR having a DDG modulator and a low index CCR having a DDG modulator.
REFERENCES:
patent: 5946135 (1999-08-01), Auerswald et al.
patent: 6154299 (2000-11-01), Gilbreath et al.
patent: 6275324 (2001-08-01), Sneh
patent: 6525880 (2003-02-01), Flanders et al.
patent: 6594059 (2003-07-01), Flanders
patent: 6902279 (2005-06-01), Lyons, III
patent: 7054563 (2006-05-01), Tsumura
patent: 7101053 (2006-09-01), Parker
patent: 2004/0075880 (2004-04-01), Pepper et al.
patent: 2004/0130769 (2004-07-01), Sayyah et al.
G.C. Gilbreath, et al., Large-aperture multiple quantum well modulating retroreflector for free-space optical data transfer on unmanned aerial vehicles, 2001 Society of Photo-Optical Instrumentation Engineers, Opt. Eng. 40 (7) 1348-1356 Jul. 2001.
I.J. Fritz, et al., Low-voltage vertical-cavity transmission modulator for 1.06 um, 1993 American Institute of Physics, Appl. Phys.Lett. 63 (4), Jul. 26, 1993 494-496.
Pepper David M.
Sayyah Keyvan
Balzan Christopher R.
Dang Hung X
HRL Laboratories LLC
Tra Tuyen Q
LandOfFree
Dynamic optical tag communicator and system using corner... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dynamic optical tag communicator and system using corner..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamic optical tag communicator and system using corner... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4048281