Patent application number | Description | Published |
20100081955 | Sampling Circuit for Measuring Analytes - This disclosure describes an apparatus and method for measuring analytes in exhaled air. The device contains an inlet through which exhaled air is received. A tube, having a number of different paths running throughout the device, is coupled to the inlet which enables the exhaled air to be re-circulated through the device. At least one portion of the tube is configured in a non-linear fashion. This particular portion of the tube may be used to temporarily store a sample of the exhaled air. The device also contains a converter configured to partially convert an analyte in the exhaled breath from a first state to a second state as the exhaled air is being re-circulated. An analyte sensor is also included to measure the levels of the converted analyte in the exhaled breath. | 04-01-2010 |
20110063958 | Servo Processor Receiving Photodetector Signals - A servo processor for an optical disk drive is provided that includes: an analog-to-digital converter for converting versions of photodetector output signals into digital signals; and a digital signal processor configured to receive the digital signals, the digital signal processor being further configured to determine a focus error signal (FES) and a tracking error signal (TES) from the digital signals, the digital signal processor being further configured to process TES and FES through servo algorithms to produce tracking and focus control signals. | 03-17-2011 |
20130272105 | Servo Processor Receiving Photodetector Signals - A servo processor for an optical disk drive is provided that includes: an analog-to-digital converter for converting versions of photodetector output signals into digital signals; and a digital signal processor configured to receive the digital signals, the digital signal processor being further configured to determine a focus error signal (FES) and a tracking error signal (TES) from the digital signals, the digital signal processor being further configured to process TES and FES through servo algorithms to produce tracking and focus control signals. | 10-17-2013 |
20130296675 | METHOD FOR RESPIRATION RATE AND BLOOD PRESSURE ALARM MANAGEMENT - Embodiments of the present disclosure relate to display features that facilitate observation of monitored physiological data. According to certain embodiments, a monitoring system may include a monitor capable of receiving data related to the physiological parameters and storing data related to the parameters. The monitor may include a microprocessor configured to determine a blood pressure baseline from the data and to establish an alarm sensitivity for blood pressure based on the blood pressure baseline. The alarm sensitivity may comprise a first tier, a second tier, a third tier, and a fourth tier, and each tier may correspond to a blood pressure range. The alarm sensitivity may relate to an acceptable percent shift of the blood pressure from the blood pressure baseline, and the acceptable percent shift for at least one of the tiers is different from the acceptable percent shift of another one of the tiers. | 11-07-2013 |
20140029400 | Servo Processor Receiving Photodetector Signals - A focus servo system for an optical disk drive includes an optical pick-up unit comprising at least one photodetector. At least one analog to digital converter is configured to digitize signals received from the at least one photodetector. At least one processor is configured to execute a digital servo algorithm to process the versions of the digitized signals to calculate a focus error signal (FES) from the versions of the digitized signals and to indicate a focus open condition based on the FES and the versions of the digitized signals. | 01-30-2014 |
20140221852 | SYSTEMS AND METHODS FOR DETERMINING RESPIRATION INFORMATION USING FREQUENCY DEMODULATION - A patient monitoring system may receive a physiological signal such as a photoplethysmograph (PPG) signal. The PPG signal may include a pulsatile component that functions as a carrier signal and a frequency modulation component that represents respiration information. The patient monitoring system may more the frequency modulation component to a baseline component of the PPG signal. Respiration information may be calculated based on the frequency modulation component. | 08-07-2014 |
20150190088 | APNEA ANALYSIS SYSTEM AND METHOD - An apnea analysis system may include a photoplethysmographic (PPG) sub-system, a breath detection sub-system, and an apnea analysis module. An apnea analysis system includes a photoplethysmographic (PPG) sub-system, a breath detection sub-system, and an apnea analysis module. The PPG sub-system is configured to be operatively connected to an individual and output a PPG signal from the individual. The breath detection sub-system is configured to be operatively connected to the individual and output a breath signal from the individual. The apnea analysis module is in communication with the PPG sub-system and the breath detection sub-system. The apnea analysis module analyzes the breath signal and a respiratory component of the PPG signal and, based on the analysis, identifies a presence of apnea, differentiates between obstructive apnea and central apnea, and provides an indication of the identified apnea. | 07-09-2015 |