is detected application_number US 71761003 A description reference will now be made in detail to the preferred embodiment of the present invention examples of which are illustrated in the accompanying drawings throughout the drawings like elements are indicated using the same or similar reference designations where possible a laundry drier control method according to the present invention reads a temperature variation rate per unit time to adjust a drying time of a drying procedure according to an amount and type of objects i e laundry being dried that is a drying procedure according to the method of the present invention is controlled such that a drying time is determined using a temperature variation rate per unit time from the point of initiating the drying procedure referring to fig4 a laundry drier adopting the control method according to the present invention is comprised of an input unit 210 for inputting user commands a display 220 for displaying the respective operational states of drying and cooling procedures based on the input user commands a moisture sensor 230 for measuring the water content of laundry during the drying procedure and for outputting a sensed water content signal a temperature sensor 240 for detecting an internal temperature during the drying and cooling procedures and for outputting a sensed temperature signal a microcomputer 250 for controlling the drying and cooling procedures based on the sensed signals and user command input to determine the state of the drying procedure and to control.