Projector with enhanced security camcorder defeat

Details Projector with enhanced security camcorder defeat Projector with enhanced security camcorder defeat

2007-05-22

2007-05-22

Moazzami, Nasser (Department: 2136)

Cryptography

By modifying optical image

C380S200000, C386S349000, C386S349000

Reexamination Certificate

active

10401208

ABSTRACT:
A projector (10) with enhanced security camcorder defeat including a copy protection illumination system (1) for illuminating a spatial light modulator (30) comprises: a polychromatic light source (20); uniformizing optics (22) for homogenizing light from the polychromatic light source to provide a uniform illumination field; relay optics; dichroic optics; an interference modulation element (5) located at a plane in an optical path located between the polychromatic light source and the spatial light modulator; and a detection means for determining the absence of the interference modulation element.

REFERENCES:
patent: 4441791 (1984-04-01), Hornbeck
patent: 4836649 (1989-06-01), Ledebuhr et al.
patent: 5357289 (1994-10-01), Konno et al.
patent: 5535047 (1996-07-01), Hornbeck
patent: 5584554 (1996-12-01), Moore et al.
patent: 5597222 (1997-01-01), Doany et al.
patent: 5600383 (1997-02-01), Hornbeck
patent: 5663927 (1997-09-01), Olson et al.
patent: 5680454 (1997-10-01), Mead
patent: 5719695 (1998-02-01), Heimbuch
patent: 5798819 (1998-08-01), Hattori et al.
patent: 5808795 (1998-09-01), Shimomura et al.
patent: 5809139 (1998-09-01), Girod et al.
patent: 5875249 (1999-02-01), Mintzer et al.
patent: 5883959 (1999-03-01), Kori
patent: 5907437 (1999-05-01), Sprotbery et al.
patent: 5912972 (1999-06-01), Barton
patent: 5914818 (1999-06-01), Tejada et al.
patent: 5918961 (1999-07-01), Ueda
patent: 5930050 (1999-07-01), Dewald
patent: 5949885 (1999-09-01), Leighton
patent: 5959717 (1999-09-01), Chaum
patent: 5960081 (1999-09-01), Vynne et al.
patent: 6008951 (1999-12-01), Anderson
patent: 6018374 (2000-01-01), Wrobleski
patent: 6031914 (2000-02-01), Tewfik et al.
patent: 6037984 (2000-03-01), Isnardi et al.
patent: 6041158 (2000-03-01), Sato
patent: 6062694 (2000-05-01), Oikawa et al.
patent: 6069914 (2000-05-01), Cox
patent: 6089717 (2000-07-01), Iwai
patent: 6122103 (2000-09-01), Perkins et al.
patent: 6247816 (2001-06-01), Cipolla et al.
patent: 6439725 (2002-08-01), Na
patent: 6513932 (2003-02-01), Ehrne et al.
patent: 6529600 (2003-03-01), Epstein et al.
patent: 6809792 (2004-10-01), Tehranchi et al.
patent: 7006630 (2006-02-01), Yu et al.
patent: 7043019 (2006-05-01), Tehranchi et al.
patent: 2002/0168069 (2002-11-01), Tehranchi et al.
patent: 2004/0033060 (2004-02-01), Beaton
patent: 2004/0247120 (2004-12-01), Yu et al.
patent: 2005/0036613 (2005-02-01), Zhou et al.
patent: 2005/0078868 (2005-04-01), Chen et al.
patent: 2005/0135789 (2005-06-01), Beaton
patent: 2005/0153787 (2005-07-01), Kim
patent: 2006/0029252 (2006-02-01), So
patent: 1 220 538 (2002-07-01), None
patent: 1 237 369 (2002-09-01), None
patent: A 2000-214779 (2000-08-01), None
patent: A 2000-295274 (2000-10-01), None
patent: WO 00/74366 (2000-12-01), None
patent: WO 01/09676 (2001-02-01), None
D. H. Kelly; Visiual Responses to Time-Dependent Stimuli—Amplitude Sensitivity Measurements; Journal of the Optical Society of America, vol. 51, No. 4, Apr. 1961, pp. 422-429.
D. H. Kelly; Visual Responses to Time-Dependent Stimuli—Individual Variations; Journal of the Optical Society of America, vol. 52, No. 1, Jan. 1962, pp. 89-95.

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