Patents by Inventor Lorenzo Cazzoli
Lorenzo Cazzoli 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).
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Patent number: 10357206Abstract: A variable indication estimator which determines an output value representative of a set of input data. For example, the estimator can reduce input data to estimates of a desired signal, select a time, and determine an output value from the estimates and the time. In one embodiment, the time is selected using one or more adjustable signal confidence parameters determine where along the estimates the output value will be computed. By varying the parameters, the characteristics of the output value are variable. For example, when input signal confidence is low, the parameters are adjusted so that the output value is a smoothed representation of the input signal. When input signal confidence is high, the parameters are adjusted so that the output value has a faster and more accurate response to the input signal.Type: GrantFiled: March 6, 2018Date of Patent: July 23, 2019Assignee: MASIMO CORPORATIONInventors: Walter M. Weber, Ammar Al-Ali, Lorenzo Cazzoli
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Publication number: 20180256113Abstract: A variable indication estimator which determines an output value representative of a set of input data. For example, the estimator can reduce input data to estimates of a desired signal, select a time, and determine an output value from the estimates and the time. In one embodiment, the time is selected using one or more adjustable signal confidence parameters determine where along the estimates the output value will be computed. By varying the parameters, the characteristics of the output value are variable. For example, when input signal confidence is low, the parameters are adjusted so that the output value is a smoothed representation of the input signal. When input signal confidence is high, the parameters are adjusted so that the output value has a faster and more accurate response to the input signal.Type: ApplicationFiled: March 6, 2018Publication date: September 13, 2018Inventors: Walter M. Weber, Ammar Al-Ali, Lorenzo Cazzoli
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Patent number: 9814418Abstract: 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: GrantFiled: November 17, 2014Date of Patent: November 14, 2017Assignee: MASIMO CORPORATIONInventors: Walter M. Weber, Ammar Al-Ali, Lorenzo Cazzoli
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Publication number: 20150351697Abstract: A variable indication estimator which determines an output value representative of a set of input data. For example, the estimator can reduce input data to estimates of a desired signal, select a time, and determine an output value from the estimates and the time. In one embodiment, the time is selected using one or more adjustable signal confidence parameters determine where along the estimates the output value will be computed. By varying the parameters, the characteristics of the output value are variable. For example, when input signal confidence is low, the parameters are adjusted so that the output value is a smoothed representation of the input signal. When input signal confidence is high, the parameters are adjusted so that the output value has a faster and more accurate response to the input signal.Type: ApplicationFiled: August 19, 2015Publication date: December 10, 2015Inventors: Walter M. Weber, Ammar Al-Ali, Lorenzo Cazzoli
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Patent number: 9138192Abstract: A variable indication estimator which determines an output value representative of a set of input data. For example, the estimator can reduce input data to estimates of a desired signal, select a time, and determine an output value from the estimates and the time. In one embodiment, the time is selected using one or more adjustable signal confidence parameters determine where along the estimates the output value will be computed. By varying the parameters, the characteristics of the output value are variable. For example, when input signal confidence is low, the parameters are adjusted so that the output value is a smoothed representation of the input signal. When input signal confidence is high, the parameters are adjusted so that the output value has a faster and more accurate response to the input signal.Type: GrantFiled: July 15, 2013Date of Patent: September 22, 2015Assignee: Masimo CorporationInventors: Walter M. Weber, Ammar Al-Ali, Lorenzo Cazzoli
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Publication number: 20150141781Abstract: 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: ApplicationFiled: November 17, 2014Publication date: May 21, 2015Inventors: Walter M. Weber, Ammar Al-Ali, Lorenzo Cazzoli
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Patent number: 8892180Abstract: 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: GrantFiled: July 29, 2013Date of Patent: November 18, 2014Assignee: Masimo CorporationInventors: Walter M. Weber, Ammar Al-Ali, Lorenzo Cazzoli
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Publication number: 20140031650Abstract: 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: ApplicationFiled: July 29, 2013Publication date: January 30, 2014Applicant: Masimo CorporationInventors: Walter M. Weber, Ammar Al-Ali, Lorenzo Cazzoli
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Publication number: 20140025306Abstract: A variable indication estimator which determines an output value representative of a set of input data. For example, the estimator can reduce input data to estimates of a desired signal, select a time, and determine an output value from the estimates and the time. In one embodiment, the time is selected using one or more adjustable signal confidence parameters determine where along the estimates the output value will be computed. By varying the parameters, the characteristics of the output value are variable. For example, when input signal confidence is low, the parameters are adjusted so that the output value is a smoothed representation of the input signal. When input signal confidence is high, the parameters are adjusted so that the output value has a faster and more accurate response to the input signal.Type: ApplicationFiled: July 15, 2013Publication date: January 23, 2014Applicant: MASIMO CORPORATIONInventors: Walter M. Weber, Ammar Al-Ali, Lorenzo Cazzoli
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Patent number: 8498684Abstract: 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: GrantFiled: March 8, 2011Date of Patent: July 30, 2013Assignee: Masimo CorporationInventors: Walter M. Weber, Ammar Al-Ali, Lorenzo Cazzoli
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Patent number: 8489364Abstract: A variable indication estimator which determines an output value representative of a set of input data. For example, the estimator can reduce input data to estimates of a desired signal, select a time, and determine an output value from the estimates and the time. In one embodiment, the time is selected using one or more adjustable signal confidence parameters determine where along the estimates the output value will be computed. By varying the parameters, the characteristics of the output value are variable. For example, when input signal confidence is low, the parameters are adjusted so that the output value is a smoothed representation of the input signal. When input signal confidence is high, the parameters are adjusted so that the output value has a faster and more accurate response to the input signal.Type: GrantFiled: August 31, 2012Date of Patent: July 16, 2013Assignee: Masimo CorporationInventors: Walter M. Weber, Ammar Al-Ali, Lorenzo Cazzoli
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Publication number: 20120330562Abstract: A variable indication estimator which determines an output value representative of a set of input data. For example, the estimator can reduce input data to estimates of a desired signal, select a time, and determine an output value from the estimates and the time. In one embodiment, the time is selected using one or more adjustable signal confidence parameters determine where along the estimates the output value will be computed. By varying the parameters, the characteristics of the output value are variable. For example, when input signal confidence is low, the parameters are adjusted so that the output value is a smoothed representation of the input signal. When input signal confidence is high, the parameters are adjusted so that the output value has a faster and more accurate response to the input signal.Type: ApplicationFiled: August 31, 2012Publication date: December 27, 2012Applicant: MASIMO CORPORATIONInventors: Walter M. Weber, Ammar Al-Ali, Lorenzo Cazzoli
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Patent number: 8260577Abstract: A variable indication estimator which determines an output value representative of a set of input data. For example, the estimator can reduce input data to estimates of a desired signal, select a time, and determine an output value from the estimates and the time. In one embodiment, the time is selected using one or more adjustable signal confidence parameters determine where along the estimates the output value will be computed. By varying the parameters, the characteristics of the output value are variable. For example, when input signal confidence is low, the parameters are adjusted so that the output value is a smoothed representation of the input signal. When input signal confidence is high, the parameters are adjusted so that the output value has a faster and more accurate response to the input signal.Type: GrantFiled: January 14, 2011Date of Patent: September 4, 2012Assignee: Masimo CorporationInventors: Walter M. Weber, Ammar Al-Ali, Lorenzo Cazzoli
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Publication number: 20110160552Abstract: 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: ApplicationFiled: March 8, 2011Publication date: June 30, 2011Inventors: Walter M. Weber, Ammar Al-Ali, Lorenzo Cazzoli
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Publication number: 20110112799Abstract: A variable indication estimator which determines an output value representative of a set of input data. For example, the estimator can reduce input data to estimates of a desired signal, select a time, and determine an output value from the estimates and the time. In one embodiment, the time is selected using one or more adjustable signal confidence parameters determine where along the estimates the output value will be computed. By varying the parameters, the characteristics of the output value are variable. For example, when input signal confidence is low, the parameters are adjusted so that the output value is a smoothed representation of the input signal. When input signal confidence is high, the parameters are adjusted so that the output value has a faster and more accurate response to the input signal.Type: ApplicationFiled: January 14, 2011Publication date: May 12, 2011Applicant: MASIMO CORPORATIONInventors: Walter M. Weber, Ammar Al-Ali, Lorenzo Cazzoli
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Patent number: 7904132Abstract: 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: GrantFiled: December 16, 2008Date of Patent: March 8, 2011Assignee: Masimo CorporationInventors: Walter M. Weber, Ammar Al-Ali, Lorenzo Cazzoli
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Patent number: 7873497Abstract: A variable indication estimator which determines an output value representative of a set of input data. For example, the estimator can reduce input data to estimates of a desired signal, select a time, and determine an output value from the estimates and the time. In one embodiment, the time is selected using one or more adjustable signal confidence parameters determine where along the estimates the output value will be computed. By varying the parameters, the characteristics of the output value are variable. For example, when input signal confidence is low, the parameters are adjusted so that the output value is a smoothed representation of the input signal. When input signal confidence is high, the parameters are adjusted so that the output value has a faster and more accurate response to the input signal.Type: GrantFiled: January 29, 2009Date of Patent: January 18, 2011Assignee: Masimo CorporationInventors: Walter M. Weber, Ammar Al-Ali, Lorenzo Cazzoli
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Publication number: 20090099429Abstract: 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: ApplicationFiled: December 16, 2008Publication date: April 16, 2009Inventors: Walter M. Weber, Ammar Al-Ali, Lorenzo Cazzoli
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Patent number: 7373194Abstract: A signal processor generates basis functions and identifies at least one basis function component of a sensor signal in order to calculate a physiological measurement. The signal processor is advantageously applied to pulse oximetry so as to directly calculate oxygen saturation and so as to calculate a robust oxygen saturation measurement. In particular, a signal component transform may be calculated within a window around a derived pulse rate estimate. A signal component transform may also utilize sinusoidal basis functions, and an optimization of a signal component transform may occur at a particular frequency or a set of frequencies. A sinusoidal waveform or waveforms at that frequency or set of frequencies is generated to select associated red and infrared components of the sensor signal, and an oxygen saturation is calculated from a magnitude ratio of these components.Type: GrantFiled: February 1, 2005Date of Patent: May 13, 2008Assignee: Masimo CorporationInventors: Walter M. Weber, Ammar Al-Ali, Lorenzo Cazzoli
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Publication number: 20050131285Abstract: A signal processor generates basis functions and identifies at least one basis function component of a sensor signal in order to calculate a physiological measurement. The signal processor is advantageously applied to pulse oximetry so as to directly calculate oxygen saturation and so as to calculate a robust oxygen saturation measurement. In particular, a signal component transform may be calculated within a window around a derived pulse rate estimate. A signal component transform may also utilize sinusoidal basis functions, and an optimization of a signal component transform may occur at a particular frequency or a set of frequencies. A sinusoidal waveform or waveforms at that frequency or set of frequencies is generated to select associated red and infrared components of the sensor signal, and an oxygen saturation is calculated from a magnitude ratio of these components.Type: ApplicationFiled: February 1, 2005Publication date: June 16, 2005Inventors: Walter Weber, Ammar Al-Ali, Lorenzo Cazzoli