Electronic marking instrument
First Claim
Patent Images
1. A hand-held writing device comprising:
- an elongate casing having an elongate axis;
an electrically actuated writing head for making marks on a writing surface;
a sensor for detecting movement of the writing head in any direction in a plane parallel to the surface without rotation of the device about its longitudinal axis; and
means for causing the writing head to be actuated to cause writing when the sensor detects said movement of the writing head relative to the surface.
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Abstract
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.
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Citations
11 Claims
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1. A hand-held writing device comprising:
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an elongate casing having an elongate axis; an electrically actuated writing head for making marks on a writing surface; a sensor for detecting movement of the writing head in any direction in a plane parallel to the surface without rotation of the device about its longitudinal axis; and means for causing the writing head to be actuated to cause writing when the sensor detects said movement of the writing head relative to the surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification