221794 ⎘
Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated; Touch switches; Optical touch switches using a light source as part of the switch using a pulsed light source
IR TIMING CALIBRATION FOR A KEY SWITCH
#2IR TIMING CALIBRATION FOR A KEY SWITCH
#3Optical keypad for explosive locations
#4Method for operating an optoelectronic proximity sensor
#5Method and apparatus for terminal to determine approach of object
#6Sensitivity adjustment device
#7Application using a single photon avalanche diode (SPAD)
#8Touch-sensitive momentary contact switch with an evaluation circuit detecting a malfunction in an optical sensor
#9Tactile switch for a domestic appliance having a controller causing a radiation emitter and an auxiliary radiation emitter to emit radiation for a duration of time
#10Optical keypad for electronic device
#11Touch-sensitive pushbutton switch
#12Touch-sensitive momentary-contact switch