摘要 |
<p>A housing contains electronics used in determining locations of a writing instrument based on wireless signals, defines a chamber in which the writing instrument may be held when not in use, and includes a retention element to retain the writing instrument from falling out of the chamber. In general, in one aspect, a writing instrument includes an elongate pen body, an electrical contact on a surface of the pen body, and a light source disposed near an end of the pen body. The light source includes a light guide having an optically conductive portion and an optically reflective portion.</p> |
申请人 |
CANDLEDRAGON, INC.;PITTEL, ARKADY;ELEKTROV, STANISLAV, V.;GOLDMAN, ANDREW, M.;FINE, LAWRENCE;GOLDENBERG, EUGENE;PITTEL, ILYA |
发明人 |
PITTEL, ARKADY;ELEKTROV, STANISLAV, V.;GOLDMAN, ANDREW, M.;FINE, LAWRENCE;GOLDENBERG, EUGENE;PITTEL, ILYA |