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Touch-screen arrangement

  • US 5,184,115 A
  • Filed: 06/04/1990
  • Issued: 02/02/1993
  • Est. Priority Date: 06/04/1990
  • Status: Expired due to Term
First Claim
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1. Apparatus for use with a CRT, said CRT emitting an electron beam which scans a viewing screen, said apparatus comprisingmeans including an inductive coil for detecting a magnetic field generated by the scan of said electron beam on said viewing screen, andmeans for activating a generation of a signal indicative of a detection of said magnetic field.

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