A screen operator or artificial finger tip for entering commands and data into a personal data device, such as an electronic notebook, by contacting the screen of the personal data device. The screen operator comprises a partially rigid base that encircles the finger, generally conforming to the finger,...http://www.google.fr/patents/US6225988?utm_source=gb-gplus-shareBrevet US6225988 - Article to be worn on the tip of a finger as a stylus
Article to be worn on the tip of a finger as a stylus