Communications: directive radio wave systems and devices (e.g. – With particular circuit – Display
Reexamination Certificate
2007-01-30
2007-01-30
Lobo, Ian J. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
With particular circuit
Display
C250S332000
Reexamination Certificate
active
11021296
ABSTRACT:
A passive millimeter wave imaging system that includes at least one millimeter wave frequency scanning antenna and multiple beam formers collecting narrow beams of millimeter wave radiation from a two-dimensional field of view. The collected radiation is amplified and separated into bins corresponding to various vertical and horizontal beam orientations. In a preferred embodiment the beam formers include one phase processor and 192 frequency processors. Two dimensional images of a target are obtained by the simultaneous detection of signal power within each beam and converting it into pixel intensity level at a rate of 30 frames per second.
REFERENCES:
patent: 6828556 (2004-12-01), Pobanz et al.
Prospects of imaging applications, Anderton, R.N.; Appleby, R.; Borrill, J.R.; Gleed, D.G.; Price, S.; Salmon, N.A.; Sinclair, G.N.; Lettington, A.H.; Terahertz Technology and Its Applications (Digest No: 1997/151), IEE Colloquium on Apr. 10, 1997, pp. 4/1-410.
A real-time wide field of view passive millimeter-wave imaging camera, Clark, S.; Martin, C.; Kolinko, V.; Lovberg, J.; Costianes, P.J.; Applied Imagery Pattern Recognition Workshop, 2003. Proceedings, 32nd, Oct. 15-17 2003 pp. 250-254 Digital Object Identifier 10.1109/AIPR.2003.1284280.
Passive millimeter wave imaging, Yujiri, L.; Shoucri, M.; Moffa, P.; Microwave Magazine, IEEE vol. 4, Issue 3, Sep. 2003 pp. 39-50 Digital Object Identifier 10.1109/MMW.2003.1237476.
Chedester Richard
Clark Stuart E.
Kolinko Vladimir
Lovberg John
Lobo Ian J.
Ross John R.
Trex Enterprises Corp.
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