Patents by Inventor Walter M. Weber

Walter M. Weber has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • RESPIRATION PROCESSOR
    Publication number: 20180014752
    Abstract: Respiratory rate can be calculated from an acoustic input signal using time domain and frequency domain techniques. Confidence in the calculated respiratory rate can also be calculated using time domain and frequency domain techniques. Overall respiratory rate and confidence values can be obtained from the time and frequency domain calculations. The overall respiratory rate and confidence values can be output for presentation to a clinician.
    Type: Application
    Filed: August 4, 2017
    Publication date: January 18, 2018
    Inventors: Ammar Al-Ali, Walter M. Weber, Anmol B. Majmudar, Gilberto Sierra, Sung Uk Lee, Mohamed Diab, Valery G. Telfort, Marc Pelletier, Boris Popov
  • Method and apparatus for calibration to reduce coupling between signals in a measurement system
    Patent number: 9861305
    Abstract: A method and an apparatus for separating a composite signal into a plurality of signals is described. A signal processor receives a composite signal and separates a composite signal into separate output signals. Feedback from one or more of the output signals is provided to a configuration module that configures the signal processor to improve a quality of the output signals. In one embodiment, calibration data from multiple calibration data sets is used to configure the demodulation of the composite signal into separate output signals.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: January 9, 2018
    Assignee: Masimo Corporation
    Inventors: Walter M. Weber, Ammar Al-Ali, Mohamed K. Diab, Marcelo M. Lamego
  • Physiological measurement system with automatic wavelength adjustment
    Patent number: 9839381
    Abstract: Disclosed herein is a physiological measurement system that can automatically adjust the number of wavelengths used based on the quality of a sensor signal that is reflective of an optical radiation detected at a sensor after tissue attenuation. The signal quality is examined to determine if it is sufficient to support the use of a full set of wavelengths. If it is determined to be insufficient to support the full set, a reduced number of wavelengths is used.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: December 12, 2017
    Assignee: Cercacor Laboratories, Inc.
    Inventors: Walter M. Weber, Ammar Al-Ali
  • Regional oximetry pod
    Patent number: 9839379
    Abstract: A regional oximetry pod drives optical emitters on regional oximetry sensors and receives the corresponding detector signals in response. The sensor pod has a dual sensor connector configured to physically attach and electrically connect one or two regional oximetry sensors. The pod housing has a first housing end and a second housing end. The dual sensor connector is disposed proximate the first housing end. The housing at least partially encloses the dual sensor connector. A monitor connector is disposed proximate a second housing end. An analog board is disposed within the pod housing and is in communications with the dual sensor connector. A digital board is disposed within the pod housing in communications with the monitor connector.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: December 12, 2017
    Assignee: Masimo Corporation
    Inventors: Ammar Al-Ali, Kevin Forrest, David Dalke, Walter M. Weber
  • Sine saturation transform
    Patent number: 9814418
    Abstract: A transform for determining a physiological measurement is disclosed. The transform determines a basis function index from a physiological signal obtained through a physiological sensor. A basis function waveform is generated based on basis function index. The basis function waveform is then used to determine an optimized basis function waveform. The optimized basis function waveform is used to calculate a physiological measurement.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: November 14, 2017
    Assignee: MASIMO CORPORATION
    Inventors: Walter M. Weber, Ammar Al-Ali, Lorenzo Cazzoli
  • Method and apparatus for reducing coupling between signals in a measurement system
    Patent number: 9801588
    Abstract: A method and an apparatus for separating a composite signal into a plurality of signals is described. A signal processor receives a composite signal and separates a composite signal in to separate output signals. Pre-demodulation signal values are used to adjust the demodulation scheme.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: October 31, 2017
    Assignee: CERCACOR LABORATORIES, INC.
    Inventors: Walter M. Weber, Ammar Al-Ali
  • Physiological parameter tracking system
    Patent number: 9788768
    Abstract: A physiological parameter tracking system has a reference parameter calculator configured to provide a reference parameter responsive to a physiological signal input. A physiological measurement output is a physiological parameter derived from the physiological signal input during a favorable condition and an estimate of the physiological parameter according to the reference parameter during an unfavorable condition.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: October 17, 2017
    Assignee: MASIMO CORPORATION
    Inventors: Ammar Al-Ali, Mohamed K. Diab, Walter M. Weber
  • Respiration processor
    Patent number: 9724016
    Abstract: Respiratory rate can be calculated from an acoustic input signal using time domain and frequency domain techniques. Confidence in the calculated respiratory rate can also be calculated using time domain and frequency domain techniques. Overall respiratory rate and confidence values can be obtained from the time and frequency domain calculations. The overall respiratory rate and confidence values can be output for presentation to a clinician.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: August 8, 2017
    Assignee: MASIMO CORP.
    Inventors: Ammar Al-Ali, Walter M. Weber, Anmol B. Majmudar, Gilberto Sierra, Sung Uk Lee, Mohamed Diab, Valery G. Telfort, Marc Pelletier, Boris Popov
  • SYSTEM AND METHOD FOR MONITORING THE LIFE OF A PHYSIOLOGICAL SENSOR
    Publication number: 20170202490
    Abstract: Aspects of the present disclosure include a sensor configured to store in memory indications of sensor use information and formulas or indications of formulas for determining the useful life of a sensor from the indications of sensor use information. A monitor connected to the sensor monitors sensor use and stores indications of the use on sensor memory. The monitor and/or sensor compute the useful life of the sensor from the indications of use and the formulas. When the useful life of the sensor is reached, an indication is given to replace the sensor.
    Type: Application
    Filed: December 22, 2016
    Publication date: July 20, 2017
    Inventors: Ammar Al-Ali, Walter M. Weber, Ryan Timothy McHale
  • System and method for monitoring the life of a physiological sensor
    Patent number: 9560998
    Abstract: Aspects of the present disclosure include a sensor configured to store in memory indications of sensor use information and formulas or indications of formulas for determining the useful life of a sensor from the indications of sensor use information. A monitor connected to the sensor monitors sensor use and stores indications of the use on sensor memory. The monitor and/or sensor compute the useful life of the sensor from the indications of use and the formulas. When the useful life of the sensor is reached, an indication is given to replace the sensor.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: February 7, 2017
    Assignee: MASIMO CORPORATION
    Inventors: Ammar Al-Ali, Walter M. Weber, Ryan Timothy McHale
  • OXIMETER PROBE OFF INDICATOR DEFINING PROBE OFF SPACE
    Publication number: 20160296169
    Abstract: An embodiment of the present disclosure seeks to select characteristics of incoming intensity data that cause comparisons of selected characteristics to produce defined probe off space having reduced crossover with defined probe on space. Once defined, the present disclosure compares characteristics of incoming intensity data with the now defined probe off space, and in some embodiments, defined probe on space, to determine whether a probe off condition exists. When a processor determines a probe off condition exists, the processor may output or trigger an output signal that audibly and/or visually indicates to a user that the optical sensor should be adjusted for a proper application to a measurement site.
    Type: Application
    Filed: June 20, 2016
    Publication date: October 13, 2016
    Inventors: Ryan Timothy McHale, Walter M. Weber
  • METHOD AND APPARATUS FOR DEMODULATING SIGNALS IN A PULSE OXIMETRY SYSTEM
    Publication number: 20160270735
    Abstract: A method and an apparatus measure blood oxygenation in a subject. A light source is activated to cause a first emission at a first wavelength and a second emission at a second wavelength. A detector detects a composite signal indicative of an attenuation of the first and second wavelengths by tissue of a patient. The composite signal is demodulated into a first intensity signal and a second intensity signal. Blood oxygenation in the subject is determined from the first and second intensity signals.
    Type: Application
    Filed: May 27, 2016
    Publication date: September 22, 2016
    Inventors: Mohamed K. Diab, Walter M. Weber, Ammar Al-Ali
  • Oximeter probe off indicator defining probe off space
    Patent number: 9370326
    Abstract: An embodiment of the present disclosure seeks to select characteristics of incoming intensity data that cause comparisons of selected characteristics to produce defined probe off space having reduced crossover with defined probe on space. Once defined, the present disclosure compares characteristics of incoming intensity data with the now defined probe off space, and in some embodiments, defined probe on space, to determine whether a probe off condition exists. When a processor determines a probe off condition exists, the processor may output or trigger an output signal that audibly and/or visually indicates to a user that the optical sensor should be adjusted for a proper application to a measurement site.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: June 21, 2016
    Assignee: MASIMO CORPORATION
    Inventors: Ryan Timothy McHale, Walter M. Weber
  • CONFIGURABLE PHYSIOLOGICAL MEASUREMENT SYSTEM
    Publication number: 20160166182
    Abstract: A physiological measurement system has a sensor, a processor, a communications link and information elements. The sensor is configured to transmit light having a plurality of wavelengths into a tissue site and to generate a sensor signal responsive to the transmitted light after tissue attenuation. The attenuated light can be used by the system to determine a plurality of physiological measurements. The processor is configured to operate on the sensor signal so as to derive at least one physiological parameter after which of the plurality of physiological measurements the system is configured to or capable of measuring.
    Type: Application
    Filed: December 14, 2015
    Publication date: June 16, 2016
    Inventors: Ammar Al-Ali, Massi Joe E. Kiani, Walter M. Weber
  • Method and apparatus for demodulating signals in a pulse oximetry system
    Patent number: 9351673
    Abstract: A method and an apparatus measure blood oxygenation in a subject. A light source is activated to cause a first emission at a first wavelength and a second emission at a second wavelength. A detector detects a composite signal indicative of an attenuation of the first and second wavelengths by tissue of a patient. The composite signal is demodulated into a first intensity signal and a second intensity signal. Blood oxygenation in the subject is determined from the first and second intensity signals.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: May 31, 2016
    Assignee: Masimo Corporation
    Inventors: Mohamed K. Diab, Walter M. Weber, Ammar Al-Ali
  • Multiple-wavelength physiological monitor
    Patent number: 9341565
    Abstract: A physiological monitor for determining blood oxygen saturation of a medical patient includes a sensor, a signal processor and a display. The sensor includes at least three light emitting diodes. Each light emitting diode is adapted to emit light of a different wavelength. The sensor also includes a detector, where the detector is adapted to receive light from the three light emitting diodes after being attenuated by tissue. The detector generates an output signal based at least in part upon the received light. The signal processor determines blood oxygen saturation based at least upon the output signal, and the display provides an indication of the blood oxygen saturation.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: May 17, 2016
    Assignee: Masimo Corporation
    Inventors: Marcelo M. Lamego, Mohamed Diab, Walter M. Weber, Ammar Al-Ali, Massi Joe E. Kiani
  • Multi-wavelength physiological monitor
    Patent number: 9339220
    Abstract: A physiological monitor for determining blood oxygen saturation of a medical patient includes a sensor, a signal processor and a display. The sensor includes at least three light emitting diodes. Each light emitting diode is adapted to emit light of a different wavelength. The sensor also includes a detector, where the detector is adapted to receive light from the three light emitting diodes after being attenuated by tissue. The detector generates an output signal based at least in part upon the received light. The signal processor determines blood oxygen saturation based at least upon the output signal, and the display provides an indication of the blood oxygen saturation.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: May 17, 2016
    Assignee: MASIMO CORPORATION
    Inventors: Marcelo M. Lamego, Mohamed Diab, Walter M. Weber, Ammar Al-Ali, Joe Kiani
  • SYSTEM AND METHOD FOR MONITORING THE LIFE OF A PHYSIOLOGICAL SENSOR
    Publication number: 20160029933
    Abstract: Aspects of the present disclosure include a sensor configured to store in memory indications of sensor use information and formulas or indications of formulas for determining the useful life of a sensor from the indications of sensor use information. A monitor connected to the sensor monitors sensor use and stores indications of the use on sensor memory. The monitor and/or sensor compute the useful life of the sensor from the indications of use and the formulas. When the useful life of the sensor is reached, an indication is given to replace the sensor.
    Type: Application
    Filed: August 7, 2015
    Publication date: February 4, 2016
    Inventors: Ammar Al-Ali, Walter M. Weber, Ryan Timothy McHale
  • Configurable physiological measurement system
    Patent number: 9241662
    Abstract: A physiological measurement system has a sensor, a processor, a communications link and information elements. The sensor is configured to transmit light having a plurality of wavelengths into a tissue site and to generate a sensor signal responsive to the transmitted light after tissue attenuation. The attenuated light can be used by the system to determine a plurality of physiological measurements. The processor is configured to operate on the sensor signal so as to derive at least one physiological parameter after which of the plurality of physiological measurements the system is configured to or capable of measuring.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: January 26, 2016
    Assignee: Cercacor Laboratories, Inc.
    Inventors: Ammar Al-Ali, Massi Joe E. Kiani, Walter M. Weber
  • METHOD AND APPARATUS FOR REDUCING COUPLING BETWEEN SIGNALS IN A MEASUREMENT SYSTEM
    Publication number: 20160007930
    Abstract: A method and an apparatus for separating a composite signal into a plurality of signals is described. A signal processor receives a composite signal and separates a composite signal in to separate output signals. Pre-demodulation signal values are used to adjust the demodulation scheme.
    Type: Application
    Filed: July 14, 2015
    Publication date: January 14, 2016
    Inventors: Walter M. Weber, Ammar Al-Ali