Capacitive Touchscreens


In 2006 capacitive touchscreens were virtually unheard of. The “smart phone” really did not exist. If you were born anytime in the last 20 years I’ll bet you don’t believe me. See this article.  LG was selling an outrageously expensive “Prada” phone, but it was considered a doomed niche product. Nokia ruled the cell phone world with their ubiquitous candy bar form factor. Then in June 2007 Apple launched their iPhone and literally changed history. You know the rest. It is predicted that by 2020 80% of humans will have a touchscreen smart phone.

I was fortunate to be involved in this technology breakthrough. From 2007 to 2011 I managed touchscreen marketing and research for Cypress Semiconductor. We developed a line of capacitive touchscreen sensor ICs trademarked as TrueTouch®. (That was my idea by the way)  During this time I had the opportunity to work with Cypress brilliant team of scientists and engineers in Ukraine and co-author several projective capacitive touchscreen patents as shown below.

Date Patent# Description
2012 20120105361 Capacitive stylus with palm rejection
2012 US20120105362 Synchronizing a stylus with a capacitive sense array
2012 US20120105362 Noise filtering devices systems and methods for capacitance sensing devices
2013 US849335 Capacitive stylus for a touch screen
2014 US20140085257 Capacitive stylus for a touch screen
Pending Adaptive filter jitter system
Pending Charger Noise Listener
Pending Capacitve stylus with palm rejection
Pending Synchronizing a stylus with a capacitive touch screen
Pending Charger noise solution for touchscreen