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US 5,381,798 AGranted
Spread spectrum telemetry of physiological signals
AssigneeQuinton Instrument Company
InventorFremont W. Burrows
Life of this patent
Estimating the term…
Abstract
A system for the transmission of physiological signals from a patient to a display analysis and/or recording device using a spread spectrum transmission technique to reduce interference with the detection of the transmitted physiological signal wherein multiple channels of the physiological signals are transmitted over a bandwidth of approximately 3 MHz.
Claims20
A system for the transmission of physiological signals from a patient to a data receiving device comprising;
- a physiological data acquisition system for the detection of the desired physiological data from the patient and for processing an analog signal corresponding thereto;
- an analog to digital conversion device operatively associated with said acquisition system for converting said analog signals corresponding to said physiological data to a serial digital data stream;
- a spread spectrum signal transmission device which combines said serial digital data stream with a digital code sequence to form a combined transmission signal which is transmitted over a wide frequency bandwidth;
- a spread spectrum signal receiving device which receives said combined transmission signal;
- a data signal demodulation device for separating said serial digital data stream from said digital code sequence;
- a data reformatting processor for the receipt and processing of said serial digital data stream from said demodulation device;
- and
- a physiological data display, recording and/or analysis device for the receipt of the output from said reformatting processor.
5 more elements
A method for transmitting physiological signals from a patient to a data receiving device comprising;
- acquiring physiological signals from a patient;
- processing an analog signal corresponding to the physiological signals of the patient;
- converting the analog signal to a serial digital data stream;
- combining the serial data stream with a digital code sequence to form a combined transmission signal;
- transmitting the combined transmission signal between a spread spectrum transmitter and a spread spectrum receiver;
- receiving the combined transmission signal and separating the serial digital data stream from the digital code sequence;
- reformatting the serial digital data stream;
- and
- receiving the reformatted serial digital data stream with a physiological data display, recording and/or analysis device.
6 more elements
Dependencies are inferred from the claim text.