Method and apparatus for error data recovery

An apparatus for recovery of lost/damaged data comprising:

• a data recovery circuit configured to generate hypotheses for lost/damaged data within a received bitstream of encoded image data, wherein each hypothesis specifies a decoding for the lost/damaged data, generate scores for the hypotheses, select a hypotheses corresponding to a best score from the generated scores and decode only 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 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 data recovery of lost/damaged data, comprising:

• generating hypotheses for lost/damaged data within a received bitstream of encoded image data, wherein each hypothesis specifies a decoding for the lost/damaged data;
• generating scores for the hypotheses;
• selecting a hypothesis corresponding to a best score from the generated scores;
• decoding only the lost/damaged data according to the selected hypothesis;
• evaluating the 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:

• means for generating hypotheses for lost/damaged data within a received bitstream of encoded image data, wherein each hypothesis specifies a decoding for the lost/damaged data;
• means for generating scores for the hypotheses;
• means for selecting a hypothesis corresponding to a best score from the generated scores;
• means for decoding only the lost/damaged data according to the selected hypothesis;
• means for evaluating the 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:

• generating hypotheses for lost/damaged data within a received bitstream of encoded image data, wherein each hypothesis specifies a decoding for the lost/damaged data;
• assembling at least one score distribution using the 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 recovery of data, comprising:

• generating hypotheses for lost/damaged data within received encoded image data, wherein each hypothesis specifies a decoding for the lost/damaged data;
• assembling at least one score distribution using at least one other hypothesis;
• and
• selectively flagging data that an error recovery method is required based upon the score distribution.

An apparatus for recovery of data comprising:

• means for generating hypotheses for lost/damaged data in encoded image data, wherein each hypothesis specifies a decoding for the lost/damaged data;
• means for assembling at least one score distribution using at least one hypothesis;
• and
• means for selectively flagging that an error recovery method is required based upon the score distribution.

A method for recovery of data from a bitstream of encoded image data comprising:

• generating hypotheses for lost/damaged data within the bitstream, wherein each hypothesis specifies a decoding for the lost/damaged data;
• assembling a score distribution using the hypotheses;
• detecting errors in data due to error propagation within the bitstream of encoded image data if the score distribution is within a range defined by a threshold;
• and
• performing a data error recovery process on data with detected errors.

An apparatus for recovery of data from a bitstream of encoded image data comprising:

• a data recovery circuit configured to generate hypotheses for lost/damaged data within a received bitstream of encoded image data, wherein each hypothesis specifies a decoding for the lost/damaged 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.

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

• generating hypotheses for lost/damaged data within the bitstream, wherein each hypothesis specifies a decoding for the lost/damaged data;
• assembling a score distribution using the hypotheses;
• detecting errors in data due to error propagation within a bitstream of encoded image data if the score distribution is within a range defined by a threshold;
• and
• performing a data error recovery process on data with detected errors.