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Electronic pen

  • US 7,239,306 B2
  • Filed: 05/10/2002
  • Issued: 07/03/2007
  • Est. Priority Date: 05/11/2001
  • Status: Active Grant
First Claim
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1. An electronic pen having a body, a cap and an actuation device, said actuation device comprising:

  • a sensor arrangement comprising a camera which captures images during operation of the pen, wherein the camera further comprises a solid-state imaging device usable for registration of information during operation of said electronic pen, and further wherein the camera also senses presence or absence of said cap on said body, and further wherein said actuation device being operable to activate said electronic pen in response to removal of said cap from said body.

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