| 摘要 |
Disclosed are an apparatus and a method for controlling an input signal level. The apparatus for controlling an input signal level according to the present invention includes: a memory for storing a current input signal level, a previous input signal level, a maximum change value, a maximum no-change value, a change counter value and a no-change counter value; a determining unit for determining whether the values stored in the memory are identical; and a control unit for reading out the values stored in the memory to output them to the determining unit and storing a predetermined level as the current input signal level based on the determination by the determining unit. The present invention can maintain an input signal at a predetermined level and thereby ensure stability of a device to which the level is applied and stability of a signal outputted from the device.
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