Patent application number | Description | Published |
20140148663 | DEVICE AND METHOD FOR EXTRACTING PHYSIOLOGICAL INFORMATION - The present invention relates to a device and a method for extracting physiological information from detected electromagnetic radiation emitted or reflected by a subject. A data stream derived from detected electromagnetic radiation is received. The data stream comprises a continuous or discrete characteristic signal including physiological information indicative of at least one vital parameter, the characteristic signal comprising at least one indicative signal component representative of a detected spectral portion indicative of the at least one vital parameter. The data stream at least sectionally comprises at least one auxiliary signal component detected along with the at least one indicative signal component, the at least one auxiliary signal component being representative of a distinct spectral portion. A characteristic signal discrepancy between at least one of the at least one indicative signal component and the at least one auxiliary signal component is detected, the signal discrepancy being related to a physiological state of the subject. A signal calibration parameter is determined under consideration of the detected signal discrepancy. Consequently, the at least one vital parameter can be detected under consideration of the calibration parameter. | 05-29-2014 |
20140235976 | SYSTEM AND METHOD FOR DETERMINING A VITAL SIGN OF A SUBJECT - The present invention relates to a system for determining a vital sign of a subject by which the likelihood of generating and outputting false alarms is reduced. The system comprises a vital sign processor that processes said vital sign information signal measured by a sensor attached to a subject to obtain a vital sign of said subject, an image analysis unit that detects motion of a marker attached to said sensor from image data obtained by an imaging unit from at least an imaging region containing said sensor, and an alarm unit that generates and outputs an alarm signal based on the measured vital sign information signal and/or obtained vital sign and on the detected motion of said marker. | 08-21-2014 |
20140253709 | SYSTEM AND METHOD FOR DETERMINING VITAL SIGN INFORMATION - In a system and method for determining vital sign information of a subject the subject is illuminated with radiation, and radiation reflected from the subject is received. A region of interest is located in a first phase. Said illumination is controlled to locally illuminate, in a second phase, the located region of interest with radiation allowing determination of vital sign information. Finally, vital sign information of the subject is determined from the radiation reflected from said region of interest and detected in said second phase. | 09-11-2014 |
20140275832 | DEVICE AND METHOD FOR OBTAINING VITAL SIGN INFORMATION OF A SUBJECT - For the measurement of vital sign information such as a respiratory rate and a heart rate a device for obtaining vital sign information of a subject is provided, comprising a first detection unit that acquires first set of detection data allowing the extraction of a first vital sign information signal related to a first vital sign of the subject and a second detection unit that acquires a second set of detection data allowing the extraction of a second vital sign information signal related to a second vital sign of the subject. An analysis unit extracts the first vital sign information signal from the first set of detection data ( | 09-18-2014 |
20140276098 | APPARATUS AND METHOD FOR DETERMINING VITAL SIGNS FROM A SUBJECT - An apparatus and a method for determining vital sign information from a subject are disclosed. The proposed apparatus comprises a detection unit for detecting radiation received from the subject in a field of view, a first determining unit for determining a first time dependent signal from the radiation received from the subject, an evaluation unit for deriving at least one parameter from the first time dependent signal, a selection unit for selecting an area in the field of view on the basis of the detected radiation and the at least one parameter, a second determining unit for determining a second time dependent signal from the radiation received from the selected area, and an analysis unit for analyzing the second time dependent signal and for determining the vital sign information on the basis of the analysis of the second time dependent signal. | 09-18-2014 |
Patent application number | Description | Published |
20090319211 | ANALOG-TO-DIGITAL CONVERTER WITH CAPACITOR ARRAY - An analog-to-digital converter comprising a capacitor array having a plurality of unit capacitors, each having first and second inputs; a comparator having a pair of inputs and at least one output; and a controller configured to couple one input of each unit capacitor of the plurality of capacitors to the inputs of the comparator, and to control a feedback loop between the pair of inputs and the at least one output of the comparator. | 12-24-2009 |
20140077873 | CHOPPED CIRCUIT WITH AC AND DC RIPPLE ERROR FEEDBACK LOOPS - The present disclosure relate to a sensor system having a low offset error. In some embodiments, the sensor system comprises a sensor configured to generate a sensor signal, which is provided to a main signal path having a first chopping correction circuit and a second chopping correction circuit. The first and second chopping correction circuit chop the sensor signal at first and second frequencies to reduce offset errors, but in doing so generate first and second chopping ripple errors. A first digital offset feedback loop generates a first compensation signal, which is fed back into the main signal path to mitigate the first chopping ripple error. A second digital offset feedback loop generates a second compensation signal, which is fed back into the main signal path to mitigate the second chopping ripple error. | 03-20-2014 |
20140368267 | CHOPPED CIRCUIT WITH AC AND DC RIPPLE ERROR FEEDBACK LOOPS - The present disclosure relate to a sensor system having a low offset error. In some embodiments, the sensor system comprises a sensor configured to generate a sensor signal, which is provided to a main signal path having a first chopping correction circuit and a second chopping correction circuit. The first and second chopping correction circuit chop the sensor signal at first and second frequencies to reduce offset errors, but in doing so generate first and second chopping ripple errors. A first digital offset feedback loop generates a first compensation signal, which is fed back into the main signal path to mitigate the first chopping ripple error. A second digital offset feedback loop generates a second compensation signal, which is fed back into the main signal path to mitigate the second chopping ripple error. | 12-18-2014 |