Automatic monitoring of host signal quality using embedded data
OwnerMatthew J. Holliman, Minerva M. Yeunginventors
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Abstract
Dynamic monitoring and correction of network or transcoding service quality is accomplished by use of watermarking techniques that allow accurate spatial and temporal localization of degraded or corrupted data sets without requiring access to an original source data set. Damage to watermarks, corresponding to damage to a data set in which the watermark is embedded, can be reported to a data processor to permit near real time modifications to data bandwidth or encoding techniques to reduce further data corruption.
Claims29
A method of
- embedding a watermark in a data set,
- processing the data using some parameter set,
- determining presence of data corruption of the data set with respect to an original data set by measuring the amount of a recovered watermark, and
- adjusting the parameter set for the data processing based on the presence of data corruption.
An article comprising a computer readable medium to store computer executable instructions, the instructions defined to cause a computer to
- embed a watermark in a data set,
- process the data using some parameter set,
- determine presence of data corruption in the data set with respect to an original data set by measuring the amount of a recovered watermark, and
- adjust the parameter set for the data processing based on the presence of data corruption.
A data degradation measurement system comprising
- a watermarking module to embed a recoverable watermark in a data set,
- a processing module for modifying the data using some parameter set, and
- a watermark recovery module to determine presence of data corruption of the data set with respect to an original data set by measuring the amount of a recovered watermark.
A method of
- receiving an embedded watermark in a data set,
- determining quality of the received data set with respect to an original data set by measuring the amount of a recovered watermark, and
- adjusting determined billing value of the received data set based on the determined quality.
A method of
- embedding a watermark in a data set to allow reception-side determination of quality of the data set with respect to an original data set by measuring the amount of a recovered watermark,
- transmitting the data set having the embedded watermark, and
- accepting information about determined quality of the transmitted data set and adjusting at least one of a data encoding parameter or transmission parameter in response for later transmitted data.
A method of
- embedding a watermark in an original data set,
- transmitting the data set having the embedded watermark over a packet based network to a receiver,
- determining quality of the received data set with respect to the original data set by measuring the amount of a recovered watermark, and
- adjusting determined billing value of the received data set based on the determined quality with respect to the original data set.
Dependencies are inferred from the claim text.