Method and apparatus for controlling analog block of data receiver

A data receiver comprising:

• an analog block which restores analog data received from a transmission channel to digital data;
• a digital block which decodes the digital data restored by the analog block to audio/video data;
• and
• an analog block controller which controls the analog block, wherein the analog block controller reconfigures a new control signal by using the digital data obtained from the digital block.

A method of controlling an analog block in which audio/video data is received by a data receiver having the analog block and a digital block, the method comprising:

• determining whether to reconfigure a control signal of the analog block;
• generating a new control signal if the control signal is determined to be reconfigured;
• and
• generating an electrical signal in response to the new control signal and feeding the generated electrical signal back to the analog block.

A history update method for controlling an analog block in which audio/video data is received by a data receiver having the analog block and a digital block, the method comprising:

• modifying a control signal of the analog block;
• calculating an error frequency by using digital data obtained from the digital block;
• and
• determining priority order of the control signal on the basis of the error frequency.