Patent ID: 8220093

Claim:
A method of controlling a washing machine that includes a drum, the method comprising: rotating the drum at a first speed at which a part of laundry within the drum tumbles and another part of the laundry adheres to the drum; sensing an amount of the laundry within the drum while the drum rotates at the first speed; detecting an unbalance amount of the drum while the drum rotates at the first speed; and when the detected unbalance amount of the drum is a first specific value or less, increasing a rotational speed of the drum from the first speed to a second speed so that substantially all of the laundry adheres to the drum, and wherein a reference value of an unbalance amount of the drum during the rotation of the drum at the second speed is determined based on the amount of the laundry sensed during the rotation of the drum at the first speed.