System and method for retrieving information from an information carrier by means of a capacitive touch screen

  • US 8,497,850 B2
  • Filed: 11/29/2011
  • Issued: 07/30/2013
  • Est. Priority Date: 11/29/2010
  • Status: Active Grant
First Claim
Patent Images

1. A method with the following steps:

  • a. providing one or more information carrier(s) with a dielectric and/or conductive pattern and a detection device having a capacitive touch screen, andwherein the information carrier (1) comprises a substrate (2) with a first dielectric coefficient ∈

    1 and a second material with a second dielectric coefficient ∈

    2, the second coefficient ∈

    2 being different from the first coefficient ∈

    1, orwherein the information carrier (1) comprises a substrate (2) with a first conductivity σ

    1 and a second material with a second conductivity σ

    2, the second conductivity σ

    2 being different from the first conductivity σ

    1,b. inducing an interaction between the information carrier and the touch screen, wherein the interaction is based on a difference in the dielectric coefficient and/or the conductivity of the pattern and generates a touch signal andc. wherein the interaction is induced by relative motion between the information carrier and the touch screen.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×