Method and circuit for storing and providing historical physiological data
First Claim
Patent Images
1. An oximeter sensor, comprising:
- a light emitting element configured to emit light;
a light detector configured to detect the light; and
a memory chip having a built-in trimmed resistor, the trimmed resistor having a resistance value that is detectable by a monitor.
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Abstract
Embodiments of the present invention include systems and methods that relate to pulse oximetry. Specifically, one embodiment includes an oximeter sensor comprising a light emitting element configured to emit light, a light detector configured to detect the light, and a memory chip having a built-in trimmed resistor, the trimmed resistor having a resistance value that is detectable by a monitor.
127 Citations
13 Claims
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1. An oximeter sensor, comprising:
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a light emitting element configured to emit light;
a light detector configured to detect the light; and
a memory chip having a built-in trimmed resistor, the trimmed resistor having a resistance value that is detectable by a monitor. - View Dependent Claims (2, 3)
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4. A method of manufacturing an oximeter sensor, comprising:
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providing a light emitting element for the oximeter sensor;
providing a light detector for the oximeter sensor; and
providing a memory chip having a built-in trimmed resistor, the trimmed resistor having a resistance value that is detectable by a monitor. - View Dependent Claims (5, 6)
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7. An oximeter system, comprising:
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an oximeter sensor and an oximeter monitor, the oximeter sensor comprising;
a light emitting element configured to emit light;
a light detector configured to detect the light; and
a memory chip having a built-in trimmed resistor, the trimmed resistor having a resistance value that is detectable by a monitor; and
the oximeter monitor comprising;
a drive circuit configured to provide signals to circuitry of the oximeter sensor; and
a receiving circuit configured to receive signals including the resistance value from the oximeter sensor. - View Dependent Claims (8)
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9. An oximeter monitor, comprising:
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a drive circuit configured to provide signals to circuitry of an oximeter sensor; and
a read circuit configured to read a resistance value formed in a memory chip disposed within an oximeter sensor and to use the resistance value to select calibration coefficients. - View Dependent Claims (10)
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11. A method of monitor operation, comprising:
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providing signals to circuitry of an oximeter sensor;
reading a resistance value formed in a memory chip disposed within the oximeter sensor; and
using the resistance value to select calibration coefficients. - View Dependent Claims (12)
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13. A method of operating an oximeter sensor, comprising:
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projecting light from a light emitting element;
detecting the light with a light detector; and
providing to a monitor a resistance value formed in a memory chip.
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Specification