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The Uwatec Smart stores a sample value only when it's diffent from the previous value. While this compressed format does save some space on the device, it is less practical for use in an application. The original uncompressed data can easily be obtained by copying missing sample values from the previous sample. The implementation uses a two pass approach. In the first pass, all sample values that are explicitly stored in the profile date are collected. Any sample value that is not present, will automatically retain the value from the previous sample. In the second pass, all sample values are passed back to the application. The presence of an absolute value is used to decide which sample types are present in the data.