Systems and methods for identifying patient talking during measurement of a physiological parameter
AssigneeCovidien LP
InventorsPaul S. Addison, James Watson
Life of this patent
Estimating the term…
Abstract
A patient monitoring system may include a microphone that generates a sound signal based on sound emanated from a patient. A patient monitoring unit may process the sound signal to identify respiration information such as respiration rate and to determine whether the patient was talking. If the patient was talking, a confidence value may be calculated, which may be used to generate a respiration information value.
Claims20
A method for processing a sound signal, the method comprising:
- receiving a sound signal from a sensor that senses sound from a patient;
- determining, with processing equipment, respiration information based on the sound signal;
- identifying, with the processing equipment, a speech portion of the sound signal;
- determining, with the processing equipment, a confidence value associated with the respiration information based on the speech portion;
- and
- generating, with the processing equipment, a respiration information value based at least on the confidence value and the respiration information.
A non-transitory computer-readable storage medium for processing a sound signal, the computer-readable medium having computer program instructions recorded thereon for:
- receiving a sound signal from a sensor that senses sound from a patient;
- determining respiration information based on the sound signal;
- identifying a speech portion of the sound signal;
- determining a confidence value associated with the respiration information based on the speech portion;
- and
- generating a respiration information value based at least on the confidence value and the respiration information.
A monitoring unit comprises processing equipment configured to:
- receive a sound signal from a sensor that senses sound from a patient;
- determine respiration information based on the sound signal;
- identify a speech portion of the sound signal;
- determine a confidence value associated with the respiration information based on the speech portion;
- and
- generate a respiration information value based at least on the confidence value and the respiration information.
Dependencies are inferred from the claim text.