Heating apparatus with sensor

Claim 1

A heating apparatus having a plurality of sensors comprising: a heating chamber adapted to receive a substance to be heated therein, heating means for supplying heat toward and into said heating chamber, sensor means including at least first and second sensors of said plurality of sensors for respectively sensing two different items of physical data independently representing the heating condition of said substance, a main control unit including a ROM, said main control unit estimating the state of progress of a heating sequence for said substance by comparing the physical data sensed by either said first sensor or said second sensor means with a reference level stored in said ROM, timer means for counting clock pulses applied to said main control unit, a heating duration control unit controlled by said main control unit in accordance with the outputs from said sensor means and said timer means for controlling the power supplied to said heating means, a heating control unit for varying the output of said heating means, a manipulator panel including an automatic cooking select key and a temperature setting key, wherein when said automatic cooking select key is depressed said first sensor is selected and when said temperature setting key is depressed said second sensor is selected, and a semiconductor voice synthesizer unit for reading out voice data from a semiconductor voice data memory in accordance with address data entered from said main control unit and for synthesizing the read-out voice data into corresponding voice information, said main control unit outputting said address data so that appropriate voice data including warning signals and other information required for proper use of said heating apparatus and inherent to the selected first or second sensor is read out.