Computer graphics processing and selective visual display system – Display peripheral interface input device – Touch panel
Reexamination Certificate
2007-11-09
2011-10-11
Mengistu, Amare (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Touch panel
C345S173000, C178S018030, C178S018090
Reexamination Certificate
active
08035625
ABSTRACT:
A touch screen includes a display screen having an upper surface that provides picture information, and an optical module that emits rays in directions that can be parallel with the upper surface of the screen. When an object, such as a stylus, pen or a finger is placed on the screen to select a portion of the picture information provided on the screen, at least a portion of the rays are reflected off of the object and detected in order to determine a position of the object on the screen. The position of the object can be calculated in various ways including calculating a position of the object based on a phase delay of the reflected rays, or based on an intensity of the reflected rays, or based on an incidence angle of the reflected rays.
REFERENCES:
patent: 4346376 (1982-08-01), Mallos
patent: 4542375 (1985-09-01), Alles et al.
patent: 5196835 (1993-03-01), Blue et al.
patent: 5734375 (1998-03-01), Knox et al.
patent: 5786810 (1998-07-01), Knox et al.
patent: 5909210 (1999-06-01), Knox et al.
patent: 6008798 (1999-12-01), Mato et al.
patent: 6100538 (2000-08-01), Ogawa
patent: 6515740 (2003-02-01), Bamji et al.
patent: 6674424 (2004-01-01), Fujioka
patent: 6690354 (2004-02-01), Sze
patent: 6707027 (2004-03-01), Liess et al.
patent: 6906793 (2005-06-01), Bamji et al.
patent: 7283214 (2007-10-01), Xu et al.
patent: 7305368 (2007-12-01), Lieberman et al.
patent: 7307661 (2007-12-01), Lieberman et al.
patent: 7342574 (2008-03-01), Fujioka
patent: 7557795 (2009-07-01), Kong et al.
patent: 7705835 (2010-04-01), Eikman
patent: 2004/0108990 (2004-06-01), Lieberman et al.
patent: 2006/0072118 (2006-04-01), Chan et al.
patent: 2006/0114237 (2006-06-01), Crockett et al.
patent: 2006/0227120 (2006-10-01), Eikman
patent: 2001-51563 (2001-06-01), None
Bolotin Dmitriy
Cha & Reiter LLC
Mengistu Amare
Samsung Electronics Co,. Ltd.
LandOfFree
Touch screen does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Touch screen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Touch screen will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4254409