Method for recording electrocardiograms
First Claim
1. A system for storage of electrocardiogram (ECG) data comprised of an ECG monitoring device adapted to record patient-generated ECG data, convert said data to Frequency-modulated format, electronically store said data in a voice-storage system, subsequently recall said data, and transmit said data acoustically by telephone to a receiving station for demodulation to the original ECG wave-form.
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Abstract
A new method for storing electrocardiogram (ECG) data in Transtelephonic/Cardiac Event Recorders is described. This method converts the ECG to a frequency-modulated (FM) format within the audible range and stores the FM converted ECG data in an audio-data recording device for subsequent acoustic FM telephone transmission to an ECG receiving center. The new method does not require analog-digital or digital-analog converters as used by conventional ECG recording devices and offers improved ECG resolution and dynamic range.
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Citations
5 Claims
- 1. A system for storage of electrocardiogram (ECG) data comprised of an ECG monitoring device adapted to record patient-generated ECG data, convert said data to Frequency-modulated format, electronically store said data in a voice-storage system, subsequently recall said data, and transmit said data acoustically by telephone to a receiving station for demodulation to the original ECG wave-form.
Specification