Wireless sleep monitoring
First Claim
1. Apparatus for physiological monitoring of a remote subject including:
- a base station having a transmission means for transmitting a reference signal; and
at least one physiological monitoring probe connectable to said subject, said physiological monitoring probe or probes having;
receiver means for receiving said reference signal;
monitoring means for monitoring said subject and generating a condition signal containing information related to a condition or conditions of said subject;
intermediate signal means for generating an intermediate signal derived by combining said condition signal with a fixed or varying frequency sub-carrier signal before modulating said reference signal;
modulation means for modulating said reference signal with said intermediate signal to produce a modulated reference signal containing said information contained in said condition signal; and
passive retransmission means for passively retransmitting said modulated reference signal to said base station;
wherein said base station has means for receiving said modulated reference signal, and means for demodulating said modulated reference signal to obtain said information related to one or more conditions of said subject so that at least one condition of said subject is available to be monitored at said base station, and said base station includes means for varying the frequency or phase of the reference signal so that said reference signal is a spread spectrum reference signal.
1 Assignment
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Accused Products
Abstract
The present invention provides a method and apparatus for physiological monitoring of a remote subject, the apparatus including: a base station having a transmission means for transmitting a reference signal; and a physiological monitoring probe connectable to the subject, the physiological monitoring probe having: receiver means for receiving the reference signal; monitoring means for monitoring the subject and generating a condition signal containing information related to a condition of the subject; modulation means for modulating the reference signal to produce a modulated reference signal containing the information contained in the condition signal; and passive retransmission means for passively retransmitting the modulated reference signal to the base station; wherein the base station has means for receiving the modulated reference signal, and means for demodulating the modulated reference signal to obtain the information related to a condition of the subject so that a condition of the subject can be monitored at the base station.
26 Citations
22 Claims
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1. Apparatus for physiological monitoring of a remote subject including:
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a base station having a transmission means for transmitting a reference signal; and at least one physiological monitoring probe connectable to said subject, said physiological monitoring probe or probes having; receiver means for receiving said reference signal; monitoring means for monitoring said subject and generating a condition signal containing information related to a condition or conditions of said subject; intermediate signal means for generating an intermediate signal derived by combining said condition signal with a fixed or varying frequency sub-carrier signal before modulating said reference signal; modulation means for modulating said reference signal with said intermediate signal to produce a modulated reference signal containing said information contained in said condition signal; and passive retransmission means for passively retransmitting said modulated reference signal to said base station; wherein said base station has means for receiving said modulated reference signal, and means for demodulating said modulated reference signal to obtain said information related to one or more conditions of said subject so that at least one condition of said subject is available to be monitored at said base station, and said base station includes means for varying the frequency or phase of the reference signal so that said reference signal is a spread spectrum reference signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 22)
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13. A method of physiological monitoring of a remote subject including:
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transmitting a reference signal from a base station to at least one remote physiological monitoring probe connected to a subject; varying the frequency or phase of said reference signal so that said reference signal is a spread spectrum reference signal; monitoring said subject and generating a condition signal containing information related to a condition or conditions of a said subject; generating an intermediate signal derived by combining said condition signal with a fixed or varying frequency sub-carrier signal; modulating said reference signal with said intermediate signal to produce a modulated reference signal containing said information contained in said condition signal; passively retransmitting said modulated reference signal from said biological monitoring probe to said base station; and demodulating said modulated reference signal to obtain said information related to the condition or conditions of said subject so that the condition or conditions of said subject can be monitored at said base station. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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Specification