General Electric Company

Lockheed Martin Corporation

Khalil John Maalouf

Yibin Zheng

Jeffrey Michael Ashe

Ralph Thomas Hoctor

Naofal Mohammed Al-Dhahir

Anthony Wykeham Jacomb-Hood

Aaron Mark Dentinger

A system and a method are provided for processing electromyogram (EMG) input signals from an abdominal surface to detect uterine contractions. The system comprises a sensor configured to detect a uterine EMG signal and generate an EMG input signal. The system further includes a signal processor coupled to the sensor and configured to generate an EMG prediction error signal. The signal processor performs signal-processing operations on the EMG input signal to generate the EMG prediction error signal, where the EMG prediction error signal corresponds to the magnitude of at least one contraction event and the periodicity of multiple contraction events.

Method and apparatus for uterine contraction monitoring using linear predictive modeling of abdominal surface EMG signals

A system and a method are provided for reducing noise in Electromyogram (EMG) signals from an external abdominal surface to detect uterine contractions. The system comprises an EMG sensor configured to detect a first EMG signal and to generate a corresponding EMG input signal and an EMG sensor configured to detect a second EMG signal and to generate a corresponding EMG input signal. A signal processor is coupled to the EMG sensor and the EMG sensor. The signal processor processes the EMG input signal and the EMG input signal with a filter and sum technique to generate an EMG reduced noise signal that represents a magnitude of at least one contraction event and periodicity of a set of multiple contraction events.

Method and apparatus for noise reduction of electromyogram signals

An apparatus, method, and computer program product for assigning communication resources in a beam-hopping cellular communication system. The satellite has a multiple beam antenna that covers a number of cells that is greater than the number of available beams In a preferred embodiment, the method includes the steps of selecting a frequency for each beam, computing a dwell time for each cell based on the traffic estimates for each cell and the number of available beams, and selecting a cell hopping sequence for each beam based on the dwell times and predicted inter-beam interference.

Apparatus, method, and computer program products for cell-hopping satellite communications

Interference in a GPS receiver in minimized while preserving the GPS satellite signal in a system having N antenna elements for receiving the interference signal and the satellite signal and multiple tapped delay line structures connected to the antenna elements for filtering the signals received by the antenna elements based a plurality of filter coefficients. The filter coefficients are determined such that the plurality of filter coefficients equals R C&lsqb;C R C&rsqb; F wherein C {tilde over (w)}&equals;F, where {tilde over (w)} equals the plurality of filter coefficients, R equals a covariance matrix, and C and F are determined to preserve a frequency spectrum of the GPS satellite signal.

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Clifton Park, NY, United States of America

Khalil John Maalouf