Privacy-enhanced display device

Image analysis – Applications

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C345S629000, C345S634000, C345S690000, C382S213000, C382S214000, C382S283000

Reexamination Certificate

active

09923107

ABSTRACT:
A method displays an image only to an authorized user by generating a mask image from a data image. The data and mask image are then displayed periodically in an alternating manner on a display device by a select signal. The opening end shutting of an optical shutter device is synchronized to the displaying of the selected images so that only the data image is perceived by the authorized user viewing the display device through the optical shutter device, and a gray image is perceived by an unauthorized user viewing the data and mask images directly.

REFERENCES:
patent: 4967268 (1990-10-01), Lipton et al.
patent: 5063602 (1991-11-01), Peppers et al.
patent: 5117302 (1992-05-01), Lipton
patent: 5181133 (1993-01-01), Lipton
patent: 5463428 (1995-10-01), Lipton et al.
patent: 5488492 (1996-01-01), Abe
patent: 5528319 (1996-06-01), Austin
patent: 5583674 (1996-12-01), Mosley
patent: 5629984 (1997-05-01), McManis
patent: 5717412 (1998-02-01), Edwards
patent: 5963371 (1999-10-01), Needham et al.
patent: 5991426 (1999-11-01), Cox et al.
patent: 6018331 (2000-01-01), Ogawa
patent: 6128049 (2000-10-01), Butterworth
patent: 6421109 (2002-07-01), Popovich
patent: 6597328 (2003-07-01), Stern et al.
patent: 6661425 (2003-12-01), Hiroaki
patent: 6784887 (2004-08-01), Tourai
InvisiView Technologies. www.man-machine.com/invisivw.html. Jul. 19, 2001.
Alfred Poor, “InvisiView Makes your Notebook Snoop-Proof”; PC Magazine Online, Jul. 19, 2001.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Privacy-enhanced display device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Privacy-enhanced display device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Privacy-enhanced display device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3722766

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.