Abstract: An orthodontic wire bending device includes a providing part, a bending unit and a cutting part. The providing part is configured to provide a wire. The bending unit is disposed at a front side of the providing part, and includes a fixing part and a bending part. The fixing part is configured to fix the wire. The bending part is configured to bend the wire fixed by the fixing part. The cutting part is configured to cut the wire bent by the bending part. The bending part includes a bending module, and the bending module is rotated along a circumferential direction or moves along a direction to make contact with at least one side of the wire for bending the wire.

Abstract: A battery saving method of controlling the display of a portable telephone is disclosed. The method comprises checking whether a user inputs a SEND key for a call origination to establish a call or an answering key in response to an incoming call; turning off the power supplied to the display when a call is set up according to the SEND key or the answering key; and, turning on the power supplied to the display when the call is terminated. Further, the display is turned off after a predetermined period of time has elapsed after the SEND key or the answering key is activated.

Abstract: Disclosed is a method for locking and unlocking a mobile telephone. The method comprises setting a locking mode by receiving a locking voice, a locking-wait time and a locking number; receiving a locking voice when there is a key input in the locking mode; partially releasing the locking function when the received locking voice is identical to a registered locking voice; switching an operation mode of the mobile telephone to an idle mode, after partially releasing the locking function; and switching the operation mode of the mobile telephone back to the locking mode, when there is no key input in the idle mode until the locking-wait time has elapsed.