Abstract: An error correction device for a digital video apparatus using a one-bit eraser signal is described. The error correction device includes an eraser occurrence counter for counting the eraser signal and generating a frequency signal of an eraser generated for each codeword of the received data, an eraser position detector for storing a position value in the codeword of the received data when the eraser signal is input and generating a position signal of the eraser generated for each codeword of the received data, and an error corrector for receiving the eraser frequency signal and the eraser position signal respectively from the eraser occurrence counter and the eraser position detector and correcting the eraser generated in the codeword of the received data, to thereby remarkably reduce the number of input pins in the decoder.

Abstract: A digital automatic frequency controlling method and circuit therefor in which a digital horizontal sync signal is separated from an input horizontal sync signal in response to a system clock, a horizontal sync separation point value is extracted, an actual horizontal sync period is calculated by using the digital horizontal sync signal and the clock pulse number within one horizontal sync period, a line jitter amount is calculated by subtracting a standard horizontal sync period from the actual horizontal sync period, a correction coefficient in response to the line jitter amount is generated to modulo-operate a standard frequency down-converting carrier color signal and to thereby generate a new frequency down-converting carrier color signal having compensated line jitter.