Invention Grant
- Patent Title: Breath sensor calibration methods and apparatus
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Application No.: US17132551Application Date: 2020-12-23
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Publication No.: US11957451B2Publication Date: 2024-04-16
- Inventor: Allen Jameson , Brian Herold , Eric Tridas
- Applicant: Carrot, Inc.
- Applicant Address: US CA Redwood City
- Assignee: Pivot Health Technologies Inc.
- Current Assignee: Pivot Health Technologies Inc.
- Current Assignee Address: US CA San Carlos
- Agency: Levine Bagade Han LLP
- Main IPC: A61B5/097
- IPC: A61B5/097

Abstract:
Breath sensor calibration methods and apparatus are described herein where a breath sensor device may generally comprise a sampling unit having a housing configured to receive a sample breath from a user and a sensor positioned within the housing. A processor in electrical communication with the sensor may be configured to determine a dissipation time when the sensor is exposed to a near-constant concentration level of CO detected from the breath sample down to an ambient level of CO detected. The processor may also be configured to calculate a time constant based on the dissipation time and a reduction from the near-constant concentration level to the ambient level. Furthermore, the processor may also be configured to apply the time constant to a transient response of the sensor to account for drift in calibrating the sensor.
Public/Granted literature
- US20210204834A1 BREATH SENSOR CALIBRATION METHODS AND APPARATUS Public/Granted day:2021-07-08
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