Touch detection techniques for capacitive touch sense systems

Details Touch detection techniques for capacitive touch sense systems Touch detection techniques for capacitive touch sense systems

2007-03-28

2011-10-18

Natalini, Jeff (Department: 2831)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

Reexamination Certificate

active

08040142

ABSTRACT:
A technique for recognizing and rejecting false activation events related to a capacitance sense interface includes measuring a capacitance value of a capacitance sensor within the capacitance sense interface to generate a measured capacitance value. The measured capacitance value is analyzed to determine a baseline capacitance value for the capacitance sensor. The baseline capacitance value may be updated based at least in part upon a weighted moving average of the measured capacitance value. The measured capacitance value may also be analyzed to determine whether the capacitance sensor was activated during a startup phase and to adjust the baseline capacitance value in response to determining that the capacitance sensor was activated during the startup phase.

REFERENCES:
patent: 3979745 (1976-09-01), Bishop
patent: 4039940 (1977-08-01), Butler et al.
patent: 4113378 (1978-09-01), Wirtz
patent: 4145748 (1979-03-01), Eichelberger et al.
patent: 4193063 (1980-03-01), Hitt et al.
patent: 4238711 (1980-12-01), Wallot
patent: 4264903 (1981-04-01), Bigelow
patent: 4266144 (1981-05-01), Bristol
patent: 4283713 (1981-08-01), Philipp
patent: 4292604 (1981-09-01), Embree et al.
patent: 4305135 (1981-12-01), Dahl et al.
patent: 4438404 (1984-03-01), Philipp
patent: 4475151 (1984-10-01), Philipp
patent: 4497575 (1985-02-01), Philipp
patent: 4586260 (1986-05-01), Baxter et al.
patent: 4614937 (1986-09-01), Poujois
patent: 4728932 (1988-03-01), Atherton
patent: 4736097 (1988-04-01), Philipp
patent: 4736191 (1988-04-01), Matzke et al.
patent: 4773024 (1988-09-01), Faggin et al.
patent: 4802103 (1989-01-01), Faggin et al.
patent: 4825147 (1989-04-01), Cook et al.
patent: 4831325 (1989-05-01), Watson, Jr.
patent: 4876534 (1989-10-01), Mead et al.
patent: 4878013 (1989-10-01), Andermo
patent: 4879461 (1989-11-01), Philipp
patent: 4935702 (1990-06-01), Mead et al.
patent: 4953928 (1990-09-01), Anderson et al.
patent: 4962342 (1990-10-01), Mead et al.
patent: 5008497 (1991-04-01), Asher
patent: 5049758 (1991-09-01), Mead et al.
patent: 5055827 (1991-10-01), Philipp
patent: 5059920 (1991-10-01), Anderson et al.
patent: 5068622 (1991-11-01), Mead et al.
patent: 5073759 (1991-12-01), Mead et al.
patent: 5083044 (1992-01-01), Mead et al.
patent: 5095284 (1992-03-01), Mead
patent: 5097305 (1992-03-01), Mead et al.
patent: 5107149 (1992-04-01), Platt et al.
patent: 5109261 (1992-04-01), Mead et al.
patent: 5119038 (1992-06-01), Anderson et al.
patent: 5120996 (1992-06-01), Mead et al.
patent: 5122800 (1992-06-01), Philipp
patent: 5126685 (1992-06-01), Platt et al.
patent: 5146106 (1992-09-01), Anderson et al.
patent: 5160899 (1992-11-01), Anderson et al.
patent: 5165054 (1992-11-01), Platt et al.
patent: 5166562 (1992-11-01), Allen et al.
patent: 5204549 (1993-04-01), Platt et al.
patent: 5214388 (1993-05-01), Vranish et al.
patent: 5237879 (1993-08-01), Speeter
patent: 5243554 (1993-09-01), Allen et al.
patent: 5248873 (1993-09-01), Allen et al.
patent: 5260592 (1993-11-01), Mead et al.
patent: 5270963 (1993-12-01), Allen et al.
patent: 5276407 (1994-01-01), Mead et al.
patent: 5289023 (1994-02-01), Mead
patent: 5303329 (1994-04-01), Mead et al.
patent: 5305017 (1994-04-01), Gerpheide
patent: 5323158 (1994-06-01), Ferguson, Jr.
patent: 5324958 (1994-06-01), Mead et al.
patent: 5331215 (1994-07-01), Allen et al.
patent: 5336936 (1994-08-01), Allen et al.
patent: 5339213 (1994-08-01), O'Callaghan
patent: 5349303 (1994-09-01), Gerpheide
patent: 5373245 (1994-12-01), Vranish et al.
patent: 5374787 (1994-12-01), Miller et al.
patent: 5381515 (1995-01-01), Platt et al.
patent: 5384467 (1995-01-01), Plimon et al.
patent: 5386219 (1995-01-01), Greanias et al.
patent: 5408194 (1995-04-01), Steinbach et al.
patent: 5488204 (1996-01-01), Mead et al.
patent: 5495077 (1996-02-01), Miller et al.
patent: 5518078 (1996-05-01), Tsujioka et al.
patent: 5525980 (1996-06-01), Jahier et al.
patent: 5541580 (1996-07-01), Gerston et al.
patent: 5541878 (1996-07-01), LeMoncheck et al.
patent: 5543588 (1996-08-01), Bisset et al.
patent: 5543590 (1996-08-01), Gillespie et al.
patent: 5543591 (1996-08-01), Gillespie et al.
patent: 5555907 (1996-09-01), Philipp
patent: 5565658 (1996-10-01), Gerpheide et al.
patent: 5566702 (1996-10-01), Philipp
patent: 5629891 (1997-05-01), LeMoncheck et al.
patent: 5648642 (1997-07-01), Miller et al.
patent: 5670915 (1997-09-01), Cooper et al.
patent: 5682032 (1997-10-01), Philipp
patent: 5730165 (1998-03-01), Philipp
patent: 5757368 (1998-05-01), Gerpheide et al.
patent: 5760852 (1998-06-01), Wu et al.
patent: 5763909 (1998-06-01), Mead et al.
patent: 5767457 (1998-06-01), Gerpheide et al.
patent: 5796183 (1998-08-01), Hourmand
patent: 5801340 (1998-09-01), Peter
patent: 5812698 (1998-09-01), Platt et al.
patent: 5841078 (1998-11-01), Miller et al.
patent: 5844265 (1998-12-01), Mead et al.
patent: 5854625 (1998-12-01), Frisch et al.
patent: 5861583 (1999-01-01), Schediwy et al.
patent: 5861875 (1999-01-01), Gerpheide
patent: 5864242 (1999-01-01), Allen et al.
patent: 5864392 (1999-01-01), Winklhofer et al.
patent: 5880411 (1999-03-01), Gillespie et al.
patent: 5889236 (1999-03-01), Gillespie et al.
patent: 5914465 (1999-06-01), Allen et al.
patent: 5914708 (1999-06-01), LaGrange et al.
patent: 5920309 (1999-07-01), Bisset et al.
patent: 5920310 (1999-07-01), Faggin et al.
patent: 5926566 (1999-07-01), Wang et al.
patent: 5942733 (1999-08-01), Allen et al.
patent: 5943052 (1999-08-01), Allen et al.
patent: 5969513 (1999-10-01), Clark
patent: 6023422 (2000-02-01), Allen et al.
patent: 6028271 (2000-02-01), Gillespie et al.
patent: 6028959 (2000-02-01), Wang et al.
patent: 6037929 (2000-03-01), Ogura et al.
patent: 6060957 (2000-05-01), Kodrnja et al.
patent: 6097432 (2000-08-01), Mead et al.
patent: 6145850 (2000-11-01), Rehm
patent: 6148104 (2000-11-01), Wang et al.
patent: 6184871 (2001-02-01), Teres et al.
patent: 6185450 (2001-02-01), Seguine et al.
patent: 6188228 (2001-02-01), Philipp
patent: 6188391 (2001-02-01), Seely et al.
patent: 6191723 (2001-02-01), Lewis
patent: 6222528 (2001-04-01), Gerpheide et al.
patent: 6239389 (2001-05-01), Allen et al.
patent: 6249447 (2001-06-01), Boylan et al.
patent: 6262717 (2001-07-01), Donohue et al.
patent: 6280391 (2001-08-01), Olson et al.
patent: 6288707 (2001-09-01), Philipp
patent: 6304014 (2001-10-01), England et al.
patent: 6320184 (2001-11-01), Winklhofer et al.
patent: 6323846 (2001-11-01), Westerman et al.
patent: 6326859 (2001-12-01), Goldman et al.
patent: 6353200 (2002-03-01), Schwankhart
patent: 6366099 (2002-04-01), Reddi
patent: 6377009 (2002-04-01), Philipp
patent: 6377129 (2002-04-01), Rhee et al.
patent: 6380929 (2002-04-01), Platt
patent: 6380931 (2002-04-01), Gillespie et al.
patent: 6414671 (2002-07-01), Gillespie et al.
patent: 6430305 (2002-08-01), Decker
patent: 6441073 (2002-08-01), Tanaka et al.
patent: 6448911 (2002-09-01), Somayajula
patent: 6452514 (2002-09-01), Philipp
patent: 6457355 (2002-10-01), Philipp
patent: 6466036 (2002-10-01), Philipp
patent: 6473069 (2002-10-01), Gerpheide
patent: 6489899 (2002-12-01), Ely et al.
patent: 6490203 (2002-12-01), Tang
patent: 6498720 (2002-12-01), Glad
patent: 6499359 (2002-12-01), Washeleski et al.
patent: 6522128 (2003-02-01), Ely et al.
patent: 6523416 (2003-02-01), Takagi et al.
patent: 6534970 (2003-03-01), Ely et al.
patent: 6535200 (2003-03-01), Philipp
patent: 6570557 (2003-05-01), Westerman et al.
patent: 6577140 (2003-06-01), Wenman
patent: 6583632 (2003-06-01), Von Basse et al.
patent: 6587093 (2003-07-01), Shaw et al.
patent: 6610936 (2003-08-01), Gillespie et al.
patent: 6624640 (2003-09-01), Lund et al.
patent: 6639586 (2003-10-01), Gerpheide
patent: 6642857 (2003-11-01), Schediwy et al.
patent: 6649924 (2003-11-01), Philipp et al.
patent: 6667740 (2003-12-01), Ely et al.
patent: 6673308 (2004-01-01), Hino et al.
patent: 6677932 (2004-01-01), Westerman
patent: 6680731 (2004-01-01), Gerpheide et al.
patent: 6683462 (2004-01-01), Shimizu
patent: 6700392 (2004-03-01), Haase
patent: 6705511 (2004-03-01), Dames et al.
patent: 6714817 (2004-03-01), Daynes et al.
patent: 6

Affiliated with

Also associated with

Rating

Touch detection techniques for capacitive touch sense systems 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 detection techniques for capacitive touch sense systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Touch detection techniques for capacitive touch sense systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4288251