Method and apparatus for error data recovery

An apparatus for recovery of lost/damaged data comprising:

• a data recovery circuit configured to generate candidate hypotheses for lost/damaged data within a received bitstream of data, generate scores for the candidate hypotheses, select a hypotheses corresponding to a best score from the generated scores and decode the lost/damaged data according to the selected hypothesis;
• an error propagation detection circuit coupled to the data recovery circuit, the error propagation circuit configured to selectively flag data based upon an evaluation of the candidate hypotheses;
• and
• an error recovery circuit coupled to the data recovery circuit and the error propagation detection circuit, the error recovery circuit configured to execute error recovery on the flagged data.

A computer readable medium comprising instructions, which when executed in a processing system, cause the system to perform the steps for data recovery of lost/damaged data, comprising:

• generating candidate hypotheses of decoding for lost/damaged data within a received bitstream of data;
• generating scores for the candidate hypotheses;
• selecting a hypothesis corresponding to a best score from the generated scores;
• decoding the lost/damaged data according to the selected hypothesis;
• evaluating the candidate hypotheses and selectively flagging data based upon the evaluation;
• and
• executing an error recovery process on the flagged data.

An apparatus for recovery of lost/damaged data comprising the steps of:

• means for generating candidate hypotheses of decoding for lost/damaged data within a received bitstream of data;
• means for generating scores for the candidate hypotheses;
• means for selecting a hypothesis corresponding to a best score from the generated scores;
• means for decoding the lost/damaged data according to the selected hypothesis;
• means for evaluating the candidate hypotheses and selectively flagging data based upon the evaluation;
• and
• means for executing an error recovery process on the flagged data.

A method for recovery of data comprising the steps of:

• generating candidate hypotheses for lost/damaged data within a received bitstream of data;
• assembling at least one score distribution using candidate hypotheses;
• and
• selectively flagging data that an error recovery method is required for based upon the score distribution.

A computer readable medium comprising instructions, which when executed in a processing system, causes the system to perform the steps for recovery of data, comprising:

• generating candidate hypotheses for lost/damaged data within received data;
• assembling at least one score distribution using at least one candidate hypothesis;
• and
• selectively flagging data that an error recovery method is required for based upon the score distribution.

An apparatus for recovery of data from a bitstream of data comprising the steps of:

• a data recovery circuit configured to generate candidate hypotheses for lost/damaged data within a received bitstream of data;
• an error propagation detection circuit coupled to the data recovery circuit, said error propagation detection circuit configured to detect errors in data due to error propagation within the bitstream of data;
• and
• an error recovery circuit coupled to the error propagation detection circuit, the error recovery circuit configured to perform a data error recovery process on data with detected errors.