Apparatus And Method For Surveying Flow Signals
First Claim
1. A method for evaluating a flow signal obtained from a gas delivery conduit or line, the method comprising:
- providing an electronic measurement data processor;
subjecting the detected measurement data of the flow signal to a time-frequency-amplitude (TFA) analysis;
generating recordings by which, for the flow signal, an amplitude value of the frequencies is apparent; and
evaluating the flow signal in light of the TFA analysis.
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Accused Products
Abstract
The invention is directed to an apparatus and a method for surveying and analyzing flow signals that can be picked up by means of flow measuring arrangements in the flow through breathing gas supply systems, in particular CPAP devices, air humidifiers, breathing gas lines, and breathing masks. One aspect of the invention is to furnish ways to increase the reliability of flow signals. In one embodiment, there is provided a device for evaluating a flow signal, picked up from a line provided for carrying breathing gas, having an electronic measurement data processor. The measurement data processor is configured such that it subjects the measurement data detected to a time-frequency-amplitude (TFA) series analysis and generates recordings, by which for the flow signal, the amplitude value of the frequencies contained is apparent.
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Citations
10 Claims
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1. A method for evaluating a flow signal obtained from a gas delivery conduit or line, the method comprising:
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providing an electronic measurement data processor;
subjecting the detected measurement data of the flow signal to a time-frequency-amplitude (TFA) analysis;
generating recordings by which, for the flow signal, an amplitude value of the frequencies is apparent; and
evaluating the flow signal in light of the TFA analysis.
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2. An apparatus for evaluating a flow signal obtained from a gas delivery conduit or line, the apparatus comprising:
- an electronic measurement data processor, wherein the measurement data processor is configured such that it subjects the measurement data of the flow signal to a time-frequency-amplitude series analysis and generates recordings, by which, for the flow signal, the amplitude value of the frequencies is apparent.
- View Dependent Claims (4, 5, 6, 7, 8, 9, 10)
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3. An apparatus for evaluating a gas flow signal comprising:
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a flow sensor to produce flow signal measurement data; and
a processor to process the measurement data to distinguish signal factors due to equipment from signal factors of physiological origin.
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Specification