ELEKTRONISCHES SCHREIBGERÄT

摘要

PCT No. PCT/GB93/00440 Sec. 371 Date Dec. 27, 1994 Sec. 102(e) Date Dec. 27, 1994 PCT Filed Mar. 3, 1993 PCT Pub. No. WO93/17872 PCT Pub. Date Aug. 16, 1993.A hand-held marking device comprises an electrically actuated writing head for making marks on a writing surface and a sensor for detecting when the writing head is moving in any direction in a plane parallel to the surface. The device includes a mechanism for causing the head to be actuated when the sensor detects relative movement of the writing head and the surface. The writing head can be arranged to be able to make a plurality of different types or sizes of marks on a writing surface, in which case a mechanism is provided for selecting which of the different mark types or sizes is to be made.