LIGHT SOURCE DRIVE ALGORITHM
First Claim
1. A method for illuminating a first and at least a second light source in a light-emitting apparatus, the method comprising the acts of:
- illuminating the first light source for a first period during which the first light source emits a plurality of light pulses;
illuminating the second light source for a second period during which the second light source emits at least one light pulse; and
repeating said illuminating acts;
wherein said first and second periods are non-overlapping.
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Accused Products
Abstract
The present invention relates to a method for illuminating a first and at least a second light source in a light-emitting apparatus. This method comprises the acts of illuminating the first light source for a first period during which the first light source emits a plurality of light pulses, illuminating the second light source for a second period during which the second light source emits at least one light pulse, and repeating the illuminating acts. Furthermore, the present invention relates to a light-emitting apparatus for emitting light pulses and detecting these light pulses after they have been reflected or transmitted by a substance. This apparatus comprises a first light source for illuminating the substance with a plurality of light pulses for a first period, at least a second light source for illuminating the substance with at least one light pulse for a second period, at least one photodetector for detecting the light pulses after they have been reflected or transmitted by the substance, and a means for converting the detected light pulses into at least one reading.
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Citations
34 Claims
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1. A method for illuminating a first and at least a second light source in a light-emitting apparatus, the method comprising the acts of:
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illuminating the first light source for a first period during which the first light source emits a plurality of light pulses;
illuminating the second light source for a second period during which the second light source emits at least one light pulse; and
repeating said illuminating acts;
wherein said first and second periods are non-overlapping. - View Dependent Claims (2, 3, 4)
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5. A method for detecting and converting into readings light pulses reflected or transmitted by a substance, the method comprising the acts of:
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providing a first and at least a second light sources;
illuminating the substance with said first light source for a first period during which the first light source emits a plurality of light pulses, wherein said light pulses are at least partially reflected or transmitted by the substance;
illuminating the substance said second light source for a second period during which the second light source emits at least one light pulse wherein said light pulses are at least partially reflected or transmitted by the substance;
repeating said illuminating acts, detecting said reflected or transmitted light pulses with at least one photodetector; and
converting said detected light pulses into a least one reading;
wherein said first and second periods are non-overlapping and wherein said detecting and converting acts are performed concurrently to said illuminating and repeating acts. - View Dependent Claims (6, 7, 8)
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9. A light-emitting apparatus for emitting light pulses and detecting said light pulses after they have been reflected or transmitted by a substance, the light-emitting apparatus comprising:
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a first light source for illuminating the substance with a plurality of light pulses for a first period;
at least a second light source for illuminating the substance with at least one light pulse for a second period;
at least one photodetector for detecting said light pulses after they have been reflected or transmitted by the substance; and
a means for converting said detected light pulses into at least one reading;
wherein all the periods during which said light pulses are emitted are consecutive to each other and alternately repeated. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for illuminating a first and at least a second light source in a pulse oxymeter, the first light source emitting light at a wavelength different from that emitted by the second light source, the method comprising the acts of:
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illuminating the first light source for a first period during which the first light source emits a plurality of light pulses;
illuminating the second light source for a second period during which the second light source emits at least one light pulse; and
repeating said illuminating acts;
wherein said first and second periods are non-overlapping. - View Dependent Claims (19, 20, 21)
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22. A method for detecting and converting into readings light pulses reflected or transmitted by a patient'"'"'s tissues, the method comprising the acts of:
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providing a pulse oxymeter comprising a first and at least a second light sources;
illuminating the patient'"'"'s tissues with said first light source for a first period during which the first light source emits a plurality of light pulses, wherein said light pulses are at least partially reflected or transmitted by the patient'"'"'s tissues;
illuminating the patient'"'"'s tissues with said second light source for a second period during which the second light source emits at least one light pulse, wherein said light pulses are at least partially reflected or transmitted by the patient'"'"'s tissues;
repeating said illuminating acts, detecting said reflected or transmitted light pulses with at least one photodetector; and
converting said detected light pulses into a least one reading, wherein said first and second periods are non-overlapping and wherein said detecting and converting acts are performed concurrently to said illuminating and repeating acts. - View Dependent Claims (23, 24, 25)
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26. A pulse oximeter for emitting light pulses and detecting said light pulses after they have been reflected or transmitted by a patient'"'"'s tissues, the pulse oxymeter comprising:
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a first light source for illuminating the patient'"'"'s tissues with a plurality of light pulses for a first period;
at least a second light source for illuminating the patient'"'"'s tissues with at least one light pulse for a second period;
at least one photodetector for detecting said light pulses after they have been reflected or transmitted by the patient'"'"'s tissues; and
a means for converting said detected light into at least one reading;
wherein said first light source emits light at a wavelength different from that emitted by said second light source and wherein all the periods during which said light pulses are emitted are consecutive to each other and alternately repeated. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34)
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Specification