Patent application number | Description | Published |
20100094147 | SYSTEMS AND METHODS FOR MONITORING HEART FUNCTION - Characteristics of a user's heart are detected. In accordance with an example embodiment, a ballistocardiogram (BCG) sensor is used to detect heart characteristics of a user, and provide a BCG output indicative of the detected heart characteristics. The BCG output is further processed using data from one or more additional sensors, such as to reduce noise and/or otherwise process the BCG signal to characterize the user's heart function. | 04-15-2010 |
20110021928 | METHODS AND SYSTEM OF DETERMINING CARDIO-RESPIRATORY PARAMETERS - Embodiments of the present invention provide noninvasive methods and systems of determining and monitoring an individual's respiration pattern, respiration rate, other cardio-respiratory parameters or variations thereof. | 01-27-2011 |
20140142437 | SYSTEMS AND METHODS FOR MONITORING HEART FUNCTION - Characteristics of a user's heart are detected. In accordance with an example embodiment, a ballistocardiogram (BCG) sensor is used to detect heart characteristics of a user, and provide a BCG output indicative of the detected heart characteristics. The BCG output is further processed using data from one or more additional sensors, such as to reduce noise and/or otherwise process the BCG signal to characterize the user's heart function. | 05-22-2014 |
20150073234 | SYSTEMS AND METHODS FOR MONITORING HEART FUNCTION - Characteristics of a user's heart are detected. In accordance with an example embodiment, a ballistocardiogram (BCG) sensor is used to detect heart characteristics of a user, and provide a BCG output indicative of the detected heart characteristics. The BCG output is further processed using data from one or more additional sensors, such as to reduce noise and/or otherwise process the BCG signal to characterize the user's heart function. | 03-12-2015 |
Patent application number | Description | Published |
20100301928 | LOW NOISE, LOW POWER SUBSAMPLING RECEIVER - Techniques for a receiver includes a low noise amplifier, a Q-enhanced bandpass filter on a chip, and an analog to digital converter (ADC) at a sub-sampling speed suitable for an intermediate frequency (IF) signal. In some embodiments, a temperature compensation circuit is included. The receiver has an effective noise level less than 7 dB. In some embodiments a 1-bit ADC is used. In some of these embodiments, one or more switches in the ADC are inverted to cancel charge injection. | 12-02-2010 |
20110095763 | GEOLOGIC MAPPING USING LIGHTNING - A method and apparatus includes detecting lightning induced electromagnetic pulses and determining a physical property of an underground structure based on the lightning induced electromagnetic pulses. In some embodiments, an apparatus includes an antenna, a low noise amplifier, a processor, cable, and a transmitter. The antenna includes three substantively perpendicular loops of electrical conductors. The processor is configured to condition the amplified signal. The cable is about 100 meters in length and connects the low noise amplifier to the processor. The transmitter is configured to send conditioned data to a data aggregation system. | 04-28-2011 |
20110169678 | HIGH FIDELITY, RADIATION TOLERANT ANALOG-TO-DIGITAL CONVERTERS - Techniques for an analog-to-digital converter (ADC) using pipeline architecture includes a linearization technique for a spurious-free dynamic range (SFDR) over 80 deciBels. In some embodiments, sampling rates exceed a megahertz. According to a second approach, a switched-capacitor circuit is configured for correct operation in a high radiation environment. In one embodiment, the combination yields high fidelity ADC (>88 deciBel SFDR) while sampling at 5 megahertz sampling rates and consuming <60 milliWatts. Furthermore, even though it is manufactured in a commercial 0.25-μm CMOS technology (1 μm=12 | 07-14-2011 |