Touch Sense Patent?

[st3]

Posted on December 29, 2009 at 10:08

Touch Sense Patent?

[st3]

Posted on May 17, 2011 at 15:06

TN0075 Technical note, ''Touch sensing software library (TSSL) frequently asked and anticipated questions (FAAQs)'' says,

Quote:

The RC acquisition method is based on a 1976 US Patent from (sic) now in the public domain.

http://www.st.com/stonline/products/literature/tn/15355.pdf

But what Patent is it?[ This message was edited by: st7 on 29-12-2009 03:42 ] [ This message was edited by: st7 on 29-12-2009 03:42 ]

[simonstapleton9]

Posted on May 17, 2011 at 15:06

http://www.google.com/patents?id=fBI0AAAAEBAJ&printsec=drawing&zoom=4#v=onepage&q=&f=false