Method of compressing waveform data with differential...

Details Method of compressing waveform data with differential... Method of compressing waveform data with differential...

2007-03-26

2008-09-30

Young, Brian (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

To or from variable length codes

C341S155000

Reexamination Certificate

active

07429938

ABSTRACT:
Waveforms are digitally sampled and compressed for storage in memory. The compression of the data includes generating a truncated entropy encoding map and using the values within the map to obtain good compression. An encoder further sub-selects values to be encoded and values to remain unencoded to provide an overall compression of the data.

REFERENCES:
patent: 2007/0016415 (2007-01-01), Thumpudi et al.
patent: 2007/0286280 (2007-12-01), Saigo et al.
Cox et al., “Compact Digital Coding of Elctrocardiographic Data,” Abstract, Washington University, St. Louis, Missouri. et al.
Horspool et al., “An LZ Approach to ECG Compression,” Abstract, IEEE Symposium on Computer-Based Medical Systems, Jun. 1994, pp. 71-76.
Pahlm et al., “Compact Digital Storage of ECGs,” Computer Programs in Biomedicine, vol. 9, 1979, pp. 293-300.
Jalaleddine et al., “ECG Data Compression Techniques—A Unified Approach,” IEEE Transactions on Biomedical Engineering, vol. 37, No. 4, Apr. 1990, pp. 329-343.

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