Error correction method, error correction circuit and electronic device applying the same

An error correction circuit including:

• a decoder;
• and
• an error code correction (ECC) engine coupled to the decoder,
• wherein
• the decoder determines whether an input analog code is at a forbidden state;
• when the input analog code is at the forbidden state, the decoder sets a digital binary code as a first predetermined code and inputs the digital binary code to the ECC engine from the decoder;
• the ECC engine determines whether the digital binary code from the decoder has a plurality of errors;
• and
• when the ECC engine determines that the digital binary code from the decoder has the plurality of errors, the ECC engine informs the decoder, the decoder resets the digital binary code as a second predetermined code and the decoder inputs the digital binary code to the ECC engine for ECC.

An electronic device including:

• a signal source device;
• and
• a signal receiving device coupled to the signal source device, the signal receiving device including a decoder and an error code correction (ECC) engine coupled to the decoder,
• wherein
• the decoder determines whether an input analog code from the signal source device is at a forbidden state;
• the ECC engine determines whether the digital binary code from the decoder has two errors;
• and
• when the ECC engine determines that the digital binary code from the decoder has two errors, the ECO engine informs the decoder, the decoder resets the digital binary code as a second predetermined code and the decoder inputs the digital binary code to the ECC engine for ECC.