Anisotropic touch screen element

Details Anisotropic touch screen element Anisotropic touch screen element

2006-06-07

2010-11-02

Nguyen, Chanh (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

C178S018050

Reexamination Certificate

active

07825905

ABSTRACT:
A touch sensitive position sensor for detecting the position of an object in two dimensions is described. The position sensor has first and second resistive bus-bars spaced apart with an anisotropic conductive area between them. Electric currents induced in the anisotropic conductive area by touch or proximity flow preferentially towards the bus-bars to be sensed by detection circuitry. Because induced currents, for example those induced by drive circuitry, flow preferentially along one direction, pin-cushion distortions in position estimates are largely constrained to this single direction. Such one-dimensional distortions can be corrected for very simply by applying scalar correction factors, thereby avoiding the need for complicated vector correction.

REFERENCES:
patent: 2338949 (1944-01-01), Kuepfmueller et al.
patent: 2925467 (1960-02-01), Becker
patent: 3699439 (1972-10-01), Turner
patent: 3921166 (1975-11-01), Volpe
patent: 4198539 (1980-04-01), Pepper, Jr.
patent: 4293734 (1981-10-01), Pepper, Jr.
patent: 4371746 (1983-02-01), Pepper, Jr.
patent: 4622437 (1986-11-01), Bloom et al.
patent: 4649232 (1987-03-01), Nakamura et al.
patent: 4650926 (1987-03-01), Nakamura et al.
patent: 4678869 (1987-07-01), Kable
patent: 4680430 (1987-07-01), Yoshikawa et al.
patent: 4686332 (1987-08-01), Greanias et al.
patent: 4733222 (1988-03-01), Evans
patent: 4822957 (1989-04-01), Talmage et al.
patent: 4827084 (1989-05-01), Yaniv et al.
patent: 4963702 (1990-10-01), Yaniger et al.
patent: 5101081 (1992-03-01), Drumm
patent: 5149919 (1992-09-01), Greanias et al.
patent: 5157227 (1992-10-01), McDermott et al.
patent: 5181030 (1993-01-01), Itaya et al.
patent: 5305017 (1994-04-01), Gerpheide
patent: 5381160 (1995-01-01), Landmeier
patent: 5438168 (1995-08-01), Wolfe et al.
patent: 5455574 (1995-10-01), Itaya et al.
patent: 5457289 (1995-10-01), Huang et al.
patent: 5463388 (1995-10-01), Boie et al.
patent: 5682032 (1997-10-01), Philipp
patent: 5730165 (1998-03-01), Philipp
patent: 5790106 (1998-08-01), Hirano et al.
patent: 5815141 (1998-09-01), Phares
patent: 5818430 (1998-10-01), Heiser
patent: 5844506 (1998-12-01), Binstead
patent: 5898426 (1999-04-01), Kim
patent: 5914465 (1999-06-01), Allen et al.
patent: 5940065 (1999-08-01), Babb et al.
patent: 5945639 (1999-08-01), Partow et al.
patent: 6016140 (2000-01-01), Blouin et al.
patent: 6137427 (2000-10-01), Binstead
patent: 6177918 (2001-01-01), Colgan et al.
patent: 6208332 (2001-03-01), Ikegami
patent: 6239790 (2001-05-01), Martinelli et al.
patent: 6288707 (2001-09-01), Philipp
patent: 6429846 (2002-08-01), Rosenberg et al.
patent: 6452514 (2002-09-01), Philipp
patent: 6466036 (2002-10-01), Philipp
patent: 6504530 (2003-01-01), Wilson et al.
patent: 6506983 (2003-01-01), Wilson et al.
patent: 6535200 (2003-03-01), Philipp
patent: 6670949 (2003-12-01), Ahn et al.
patent: 6933931 (2005-08-01), Lubarsky et al.
patent: 7068418 (2006-06-01), Kawase
patent: 7180508 (2007-02-01), Kent et al.
patent: 2002/0180578 (2002-12-01), Sandbach
patent: 2003/0132922 (2003-07-01), Philipp
patent: 2005/0041018 (2005-02-01), Philipp
patent: 2006/0207806 (2006-09-01), Philipp
patent: 203719 (1908-10-01), None
patent: 01091350 (1989-04-01), None
patent: 2000513433 (2000-10-01), None
patent: WO-9734273 (1997-09-01), None
patent: WO-2005020056 (2005-03-01), None
Quantum Research Group Ltd (UK), QT11O, QTouck (TM) Sensor IC, 1999, QRG Ltd, Hamble UK.
Quantum Research Group Ltd (UK), QProx QT 310, Programmable Capacitance Sensor IC, 2002, QRG Ltd, Hamble UK.
“PCT International Search Report in PCT/GB2004/003437, mailed Nov. 8, 2004”, 2 pages.
“Japanese Application Serial No. 2006-523671, Office Action Mailed on Mar. 17, 2010”.

Affiliated with

Also associated with

Rating

Anisotropic touch screen element does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Anisotropic touch screen element, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anisotropic touch screen element will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4215652