How much ECG data can be stored in 32 Mbytes of memory?
The SEER Light is designed to only store 24 hours of data. At the end of a 24-hour period the SEER Light automatically stops its recording session. How can 24 hours of 3 channels ECG fit on 32 Mbytes of memory? Is there data compression? The SEER Light recorder will store two or three channels of ECG information for up to 24 hours. This data is compressed using a lossless Huffman compression technique. The typical 24 hours three-channel recording is stored in 12 megabytes virtually guaranteeing that even a noisy recording will be stored in the full 32 megabytes. What is lossless compression? In general, lossless compression is a technique that preserves every single bit of data that was originally in the file. It insures that after the file compressed and uncompressed it is identical to the original file. All of the information is completely restored. This is generally the technique of choice for text or spreadsheet files, where losing words or financial data could pose a problem. The
