NON-INTERFERING PHYSIOLOGICAL SENSOR SYSTEM
First Claim
1. A system comprising:
- a light source;
at least one photodetector in optical communication with said light source; and
a processor in communication with said photodetector and configured to output a signal independent of an interfering signal from an interfering sensor; and
an analog-to-digital converter in communication with said processor and configured to digitize a signal from said photodetector by oversampling and output oversampling data to said processor;
wherein said processor includes an averaging filter in communication with said analog-to-digital converter and configured to average the oversampling data received from said analog-to-digital converter prior to decimation to generate an oversampling number.
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Accused Products
Abstract
A system includes a light source, a photodetector in optical communication with the light source, and a processor in communication with said photodetector and configured to output a signal representing oxygen saturation independent of an interfering signal from an interfering source. The system may further include an analog-to-digital converter in communication with the processor that is configured to digitize a signal from the photodetector by oversampling and output oversampling data to the processor. The processor may include an averaging filter that averages the oversampling data received from said analog-to-digital converter prior to decimation to generate an oversampling number.
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Citations
20 Claims
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1. A system comprising:
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a light source; at least one photodetector in optical communication with said light source; and a processor in communication with said photodetector and configured to output a signal independent of an interfering signal from an interfering sensor; and an analog-to-digital converter in communication with said processor and configured to digitize a signal from said photodetector by oversampling and output oversampling data to said processor; wherein said processor includes an averaging filter in communication with said analog-to-digital converter and configured to average the oversampling data received from said analog-to-digital converter prior to decimation to generate an oversampling number. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A tissue oximeter sensor comprising:
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a light source; a photodetector in optical communication with said light source; a processor in communication with said photodetector and configured to output a signal representing oxygen saturation independent of an interfering signal from an interfering source. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A system comprising:
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a tissue oximeter sensor having a light source in optical communication with a photodetector and a processor in communication with said photodetector; an interfering sensor configured to output an interfering signal having a frequency; wherein said tissue oximeter is configured to output a signal independent of the interfering signal output by said interfering sensor. - View Dependent Claims (19, 20)
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Specification