把持および近接検出のためのセンサーデバイスおよび方法

Japanese Patent JP5882194

B2

An electrical hand-held device is provided with improved proximity detection, which can be placed on a surface and has at least one transmission electrode, at least one reception electrode and at least one compensation electrode arranged between transmission electrode and reception electrode. The transmission electrode and the compensation electrode can be supplied with an electric switching signal of predetermined signal frequency and predetermined signal amplitude. Switching electric signal at the compensation electrode is phase-delayed with respect to the switching electric signal at the transmission electrode. Alternating electric fields radiated at the transmission electrode and the compensation electrode generate a current in the reception electrode, which is representative of an approach of a hand to the hand-held device. The transmission electrode and the reception electrode are arranged in such a way, that the impedance between the transmission electrode and the reception electrode exceeds a predetermined value, which is suitable to keep the current generated in the reception electrode under a predetermined value.

JPH04299612	METHOD AND DEVICE FOR SENSING PLURAL POSITIONS BY HIGH FREQUENCY PROXIMITY SWITCH
WO/2012/031912	TOUCH SWITCH GLASS PANEL
JP3935920	PLANT SWITCH DEVICE

Reinhard Unterlightmeyer
Klaus Cartner
Holger Steffens
Stephan Donat

JP2012504012A

March 09, 2016

April 07, 2010

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Microchip Technology Germany Zwei Gaem Behr und Co Kaghe

H03K17/955; G06F3/044

JP2004046386A
JP2004259107A
JP2005505181A

US6664661
WO2008116642A2

Yasuhiko Murayama
Masatake Shiga
Takashi Watanabe
Shinya Mitsuhiro

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