Manually activated position indicator
First Claim
1. A manually activated position indicator with electrical output signals, comprising:
- (a) a plurality of adjacent electrodes (S, A1-, A1+, B1-, B1+, Ax-, Ax+, Bx-, Bx+, Ay-, Ay+, By-, By+), which are electrically insulated from one another and are covered on one side by an electrically insulating layer (3) the side of which opposite said electrodes is provided as a support surface for a finger (4) of the user of said position indicator wherein;
(b) said electrodes form at least three groups;
(c) all of the electrodes (S) of a first group are connected to a voltage source (5) that delivers an alternating voltage (Us);
(d) the electrodes of the other groups are connected to a signal evaluating circuit; and
(e) at least one electrode of said other groups is arranged adjacent to an electrode (S) of the first group.
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Accused Products
Abstract
A manually activated position indicator with electrical output signals includes a plurality of adjacent electrodes (S, Al-, Al+, Bl-, Bl+, Ax-, Ax+, Bx-, Bx+,Ay-, Ay+, By-, By+), which are electrically insulated from one another and are covered on one side by an electrically insulating layer (3) the side of which opposite said electrodes is provided as a support surface for a finger (4) of the user of said position indicator wherein said electrodes form at least three groups, and all of the electrodes (S) of a first group are connected to a voltage source (5) that delivers an alternating voltage (Us). The electrodes of the other groups are connected to a signal evaluating circuit, and at least one electrode of said other groups is arranged adjacent to an electrode (S) of the first group.
23 Citations
13 Claims
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1. A manually activated position indicator with electrical output signals, comprising:
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(a) a plurality of adjacent electrodes (S, A1-, A1+, B1-, B1+, Ax-, Ax+, Bx-, Bx+, Ay-, Ay+, By-, By+), which are electrically insulated from one another and are covered on one side by an electrically insulating layer (3) the side of which opposite said electrodes is provided as a support surface for a finger (4) of the user of said position indicator wherein; (b) said electrodes form at least three groups; (c) all of the electrodes (S) of a first group are connected to a voltage source (5) that delivers an alternating voltage (Us); (d) the electrodes of the other groups are connected to a signal evaluating circuit; and (e) at least one electrode of said other groups is arranged adjacent to an electrode (S) of the first group. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification