| 摘要 |
PURPOSE:To simplify a high frequency heater by telescoping a card printed with timing and data marks in an optical reader, thereby controlling the cooking and enabling to record and reproduce a key input via a simple paper card. CONSTITUTION:A light emitting element 2 and a photodetector 3 are elevationally disposed oppositely of a card holder 4 provided on an operation panel to open a card inlet 10, and a card 1 made of paper or plastic is telescopically provided in the holder 4. The card 1 is printed with timing marks 11 used as synchronizing signal in case of reading data by a microcomputer and with data marks 12. When the card 1 is pulled out after the card 1 is inserted into the holder 4 and a key operation is performed on the operation panel, the content of the key operation is stored in an RAM region of the microcomputer corresponding to the number of the numbered card 1. |
