초록 ▼

A control panel having a series of touch sensitive sensors mounted under a protective cover. The outputs of the sensors are effected by the presence of a human finger on the surface of the cover due to the capacitance of the human body with the earth. A microcomputer is used to distinguish intention

A control panel having a series of touch sensitive sensors mounted under a protective cover. The outputs of the sensors are effected by the presence of a human finger on the surface of the cover due to the capacitance of the human body with the earth. A microcomputer is used to distinguish intentional touching of the sensors from incidential contact with the panel, thereby making the control panel useful for controlling multiple functions from a single location.

대표청구항 ▼

A touch sensitive control apparatus comprising, in combination: an oscillator producing an oscillation output signal; a plurality of touch-responsive sensors coupled in circuit with said oscillator and producing respective analog signals associated with touch-dependent modifications of the oscillati

A touch sensitive control apparatus comprising, in combination: an oscillator producing an oscillation output signal; a plurality of touch-responsive sensors coupled in circuit with said oscillator and producing respective analog signals associated with touch-dependent modifications of the oscillation output signal produced by said oscillator; an analog-to-digital converter which converts analog signals produced by said sensors into respective digital signals representative thereof; and a digital computer which processes said respective digital signals and generates an output associated with a selected one of said sensors on the basis of a prescribed relationship among the analog signals produced by plural ones of said sensors.