Electrical handheld device e.g. computer mouse, has transmission electrode and reception electrode arranged in such a way, that sum of impedances between transmission electrode and reception electrode, exceeds predetermined value

摘要

The electrical handheld device has a transmission electrode (SE) and a reception electrode arranged in such a way, that the sum of the impedances between the transmission electrode and the reception electrode, which consist of the impedance between the transmission electrode and a surface, the impedance of the surface and the impedance between the surface and the reception electrode when a hand-held device is placed on the surface exceeds a predetermined value suitable to keep the current generated in the reception electrode under a predetermined value. An independent claim is included for an electrode system.