Patent ID: 8249277

Claim:
An apparatus capable of switching a volume adjustment mode automatically, the apparatus comprising: a volume adjustment unit; an input unit for generating a volume adjustment signal in response to an adjustment operation; a memory for storing an identifier and a first predetermined volume, wherein the identifier has a first value and a second value, the first value is configured for indicating a current volume adjustment mode is a heavy adjustment mode, and the second value is configured for indicating the current volume adjustment mode is a light adjustment mode; a control module for receiving the volume adjustment signal and judging the value of the identifier, when the value of the identifier is the first value, generating a heavy adjustment signal to control the volume adjustment unit to adjust the volume in the heavy adjustment mode, and when the value of the identifier is the second value, generating a light adjustment signal to control the volume adjustment unit to adjust the volume in the light adjustment mode; and a volume comparison module for obtaining current volume from the volume adjustment unit and comparing the current volume with the first predetermined volume, if the current volume is not less than the first predetermined volume and the current volume adjustment mode is the heavy adjustment mode, changing the value of the identifier from the first value to the second value, thereby switching the current adjustment mode from the heavy adjustment mode to the light adjustment mode; wherein when the apparatus is in the heavy adjustment mode, the volume adjustment unit adjusts the volume with larger increments or decrements; and when the apparatus is in the light adjustment mode, the volume adjustment unit adjusts the volume with smaller increments or decrements.