Patent ID: 8626277

Claim:
A computer-implemented electrocardiographic data processor with time stamp correlation, comprising: a download station, comprising: a data interface configured to physically interface to an electrocardiographic monitoring circuit, the monitoring circuit comprises a persistent memory, an onboard power supply, and an encoder powered by the onboard power supply and configured to determine a differential voltage between a current discrete digital voltage value and a prior discrete digital voltage value, the differential voltage is stored into the persistent memory in a digitized data stream format representative of analog cardiac action potential signals; and a data retrieval module configured to retrieve digitally-encoded voltage values and time stamps recorded by the monitoring circuit from the persistent memory of the monitoring circuit via the data interface; a post-processing application configured to execute on a computer that is interfaced with the download station, comprising: an onboard digital data store comprising a set of enumerated output voltages and enumerated ranges of voltage differences that each correspond to lower and upper bounds of voltage; a comparator configured to compare each retrieved voltage value to the lower and upper bounds of voltage and to identify the enumerated range within which each retrieved voltage value falls; and a decoder configured to select the output voltages corresponding to the identified enumerated ranges as a reproduction of the analog cardiac action potential signals; and a display configured to depict the reproduced analog cardiac action potential signals and to correlate the time stamps to temporal points within the reproduced analog cardiac action potential signals.