General Electric Company

Sm Shajed Hasan

Radislav Alexandrovich Potyrailo

Jeffrey Michael Ashe

Naresh Kesavan Rao

Krishnakumar Sundaresan

Bruce Arnold Friedman

Matthew Richard Pekarske

As the acuity level of a patient being monitored on a wireless system changes, the criticality of that patient's data arriving at its intended destination changes. For example, if a patient being monitored for potentially life threatening arrhythmias begins to decline in health while being monitored on a less reliable wireless system, the wireless monitor switches to a more reliable wireless system to ensure delivery of critical patient data. Allowing a patient monitor to switch between wireless infrastructures based on patient acuity limits the number of users operating on the higher cost wireless infrastructure.

System and method of selecting wireless spectrum and protocol based on patient acuity

An impedance analyzer is provided. The analyzer includes a signal excitation generator comprising a digital to analog converter, where a transfer function of the digital to analog converter from digital to analog is programmable. The impedance analyzer further includes a receiver comprising a low noise amplifier (LNA) and an analog to digital converter (ADC), where the LNA is a current to voltage converter; where the programmable digital to analog transfer function is implemented by a direct digital synthesizer (DDS) and a voltage mode digital to analog converter, or a digital phase locked loop (PLL), or both. Further, a multivariable sensor node having an impedance analyzer is provided. Furthermore, a multivariable sensor network having a plurality of multivariable sensor nodes is provided.

Systems and methods for monitoring sensors

A method for multivariable measurements using a single-chip impedance analyzer includes providing a sensor, exposing the sensor to an environmental parameter, determining a complex impedance of the sensor over a measured spectral frequency range of the sensor, and monitoring at least three spectral parameters of the sensor.

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Niskayuna, NY, United States of America

Sm Shajed Hasan