Patents by Inventor Ron J. Kadlec
Ron J. Kadlec 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: 9848820Abstract: An apnea analysis system may include a photoplethysmographic (PPG) sub-system, a breath detection sub-system, and an apnea analysis module. An apnea analysis system includes a photoplethysmographic (PPG) sub-system, a breath detection sub-system, and an apnea analysis module. The PPG sub-system is configured to be operatively connected to an individual and output a PPG signal from the individual. The breath detection sub-system is configured to be operatively connected to the individual and output a breath signal from the individual. The apnea analysis module is in communication with the PPG sub-system and the breath detection sub-system. The apnea analysis module analyzes the breath signal and a respiratory component of the PPG signal and, based on the analysis, identifies a presence of apnea, differentiates between obstructive apnea and central apnea, and provides an indication of the identified apnea.Type: GrantFiled: January 6, 2015Date of Patent: December 26, 2017Inventors: Bo Chen, Michael L. Mestek, Ron J. Kadlec, Niranjan Maharajh, Mark E. Kolnsberg, Corinne H. Johnson, James P. Ochs, Paul Stanley Addison, James N. Watson
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Publication number: 20170148478Abstract: An optical disk drive and a digital servo method for the optical disk drive includes controlling functions of the optical disk drive with a microprocessor. Low-pass filtered and gain adjusted versions of individual photodetector output signals resulting from an illumination of an optical disk are received. Versions of the individual photodetector output signals are digitized to produce digital signals. A focus control signal and/or a tracking control signal is determined through at least one servo algorithm executed by a digital signal processor based on a focus error and/or tracking error, respectively, determined from the digital signals. The digital signal processor is an integrated circuit structured and arranged for manipulation of digital signals in accordance with programmed commands, and in a manner that operates faster than the microprocessor.Type: ApplicationFiled: December 5, 2016Publication date: May 25, 2017Inventor: Ron J. Kadlec
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Patent number: 9514777Abstract: An optical disk drive and a digital servo method for the optical disk drive includes controlling functions of the optical disk drive with a microprocessor. Low-pass filtered and gain-adjusted versions of photodetector output signals resulting from an illumination of an optical disk are received. Versions of the photodetector signals are digitized to produce digital signals. A focus control signal is determined through at least one servo algorithm executed by a digital signal processor based on a focus error determined from the digital signals. Alternatively, a tracking control signal is determined through at least one servo algorithm executed by the digital signal processor based on a tracking error determined from the digital signals. The digital signal processor has a specialized structure and arrangement for processing digital signals at a higher speed than the microprocessor.Type: GrantFiled: January 21, 2016Date of Patent: December 6, 2016Assignee: OPTICAL DEVICES, LLCInventor: Ron J. Kadlec
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Publication number: 20160140995Abstract: An optical disk drive and a digital servo method for the optical disk drive includes controlling functions of the optical disk drive with a microprocessor. Low-pass filtered and gain-adjusted versions of photodetector output signals resulting from an illumination of an optical disk are received. Versions of the photodetector signals are digitized to produce digital signals. A focus control signal is determined through at least one servo algorithm executed by a digital signal processor based on a focus error determined from the digital signals. Alternatively, a tracking control signal is determined through at least one servo algorithm executed by the digital signal processor based on a tracking error determined from the digital signals.Type: ApplicationFiled: January 21, 2016Publication date: May 19, 2016Inventor: Ron J. Kadlec
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Publication number: 20160027463Abstract: A digital servo method for an optical disk drive includes receiving low-pass filtered and gain-adjusted versions of photodetector output signals resulting from an illumination of an optical disk. Versions of the photodetector signals are digitized to produce digital signals. A focus control signal is determined through at least one servo algorithm in a digital signal processor based on a focus error determined from the digital signals. Alternatively, a tracking control signal is determined through at least one servo algorithm in the digital signal processor based on a tracking error determined from the digital signals. An optical disk drive includes an analog-to-digital converter configured to convert low-pass filtered and gain-adjusted versions of photodetector output signals into at least one digital signal and the digital signal processor.Type: ApplicationFiled: August 6, 2015Publication date: January 28, 2016Inventor: Ron J. Kadlec
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Patent number: 9245569Abstract: A digital servo method for an optical disk drive includes receiving low-pass filtered and gain-adjusted versions of photodetector output signals resulting from an illumination of an optical disk. Versions of the photodetector signals are digitized to produce digital signals. A focus control signal is determined through at least one servo algorithm in a digital signal processor based on a focus error determined from the digital signals. Alternatively, a tracking control signal is determined through at least one servo algorithm in the digital signal processor based on a tracking error determined from the digital signals. An optical disk drive includes an analog-to-digital converter configured to convert low-pass filtered and gain-adjusted versions of photodetector output signals into at least one digital signal and the digital signal processor.Type: GrantFiled: August 6, 2015Date of Patent: January 26, 2016Assignee: Optical Devices, LLCInventor: Ron J. Kadlec
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Patent number: 9105281Abstract: A servo processor for an optical disk drive is provided that includes: an analog-to-digital converter for converting versions of photodetector output signals into digital signals; and a digital signal processor configured to receive the digital signals, the digital signal processor being further configured to determine a focus error signal (FES) and a tracking error signal (TES) from the digital signals, the digital signal processor being further configured to process TES and FES through servo algorithms to produce tracking and focus control signals.Type: GrantFiled: April 1, 2013Date of Patent: August 11, 2015Assignee: Optical Devices, LLCInventor: Ron J. Kadlec
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Publication number: 20150190088Abstract: An apnea analysis system may include a photoplethysmographic (PPG) sub-system, a breath detection sub-system, and an apnea analysis module. An apnea analysis system includes a photoplethysmographic (PPG) sub-system, a breath detection sub-system, and an apnea analysis module. The PPG sub-system is configured to be operatively connected to an individual and output a PPG signal from the individual. The breath detection sub-system is configured to be operatively connected to the individual and output a breath signal from the individual. The apnea analysis module is in communication with the PPG sub-system and the breath detection sub-system. The apnea analysis module analyzes the breath signal and a respiratory component of the PPG signal and, based on the analysis, identifies a presence of apnea, differentiates between obstructive apnea and central apnea, and provides an indication of the identified apnea.Type: ApplicationFiled: January 6, 2015Publication date: July 9, 2015Inventors: Bo Chen, Michael L. Mestek, Ron J. Kadlec, Niranjan Maharajh, Mark E. Kolnsberg, Corinne H. Johnson, James P. Ochs, Paul Stanley Addison, James N. Watson
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Patent number: 8937854Abstract: A focus servo system for an optical disk drive includes an optical pick-up unit comprising at least one photodetector. At least one analog to digital converter is configured to digitize signals received from the at least one photodetector. At least one processor is configured to execute a digital servo algorithm to process the versions of the digitized signals to calculate a focus error signal (FES) from the versions of the digitized signals and to indicate a focus open condition based on the FES and the versions of the digitized signals.Type: GrantFiled: September 26, 2013Date of Patent: January 20, 2015Assignee: Optical Devices, LLCInventor: Ron J. Kadlec
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Patent number: 8873355Abstract: A servo processor for an optical disk drive is provided that includes: an analog-to-digital converter for converting versions of photodetector output signals into digital signals; and a digital signal processor configured to receive the digital signals, the digital signal processor being further configured to determine a focus error signal (FES) and a tracking error signal (TES) from the digital signals, the digital signal processor being further configured to process TES and FES through servo algorithms to produce tracking and focus control signals.Type: GrantFiled: April 1, 2013Date of Patent: October 28, 2014Assignee: Optical Devices, LLCInventor: Ron J. Kadlec
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Publication number: 20140221851Abstract: A patient monitoring system may receive a physiological signal such as a photoplethysmograph (PPG) signal. The PPG signal may include a pulsatile component that functions as a carrier signal and an amplitude modulation component that represents respiration information. The patient monitoring system may move the amplitude modulation component to a baseline component of the PPG signal. Respiration information may be calculated based on the amplitude modulation component.Type: ApplicationFiled: February 5, 2013Publication date: August 7, 2014Applicant: Covidien LPInventors: Braddon M. Van Slyke, Ron J. Kadlec, Scott McGonigle
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Publication number: 20140221852Abstract: A patient monitoring system may receive a physiological signal such as a photoplethysmograph (PPG) signal. The PPG signal may include a pulsatile component that functions as a carrier signal and a frequency modulation component that represents respiration information. The patient monitoring system may more the frequency modulation component to a baseline component of the PPG signal. Respiration information may be calculated based on the frequency modulation component.Type: ApplicationFiled: February 5, 2013Publication date: August 7, 2014Applicant: Covidien LPInventors: Braddon M. Van Slyke, Ron J. Kadlec, Scott McGonigle
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Patent number: 8761854Abstract: Embodiments of the present disclosure relate to display features that facilitate observation of monitored physiological data. According to certain embodiments, a monitoring system may include a monitor capable of receiving data related to the physiological parameters and storing data related to the parameters. The monitor may include a microprocessor configured to determine a blood pressure baseline from the data and to establish an alarm sensitivity for blood pressure based on the blood pressure baseline. The alarm sensitivity may comprise a first tier, a second tier, a third tier, and a fourth tier, and each tier may correspond to a blood pressure range. The alarm sensitivity may relate to an acceptable percent shift of the blood pressure from the blood pressure baseline, and the acceptable percent shift for at least one of the tiers is different from the acceptable percent shift of another one of the tiers.Type: GrantFiled: July 9, 2013Date of Patent: June 24, 2014Assignee: Coviden LPInventors: Thomas Price, Ron J. Kadlec
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Publication number: 20140029400Abstract: A focus servo system for an optical disk drive includes an optical pick-up unit comprising at least one photodetector. At least one analog to digital converter is configured to digitize signals received from the at least one photodetector. At least one processor is configured to execute a digital servo algorithm to process the versions of the digitized signals to calculate a focus error signal (FES) from the versions of the digitized signals and to indicate a focus open condition based on the FES and the versions of the digitized signals.Type: ApplicationFiled: September 26, 2013Publication date: January 30, 2014Applicant: Optical Devices, LLCInventor: Ron J. Kadlec
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Publication number: 20130296675Abstract: Embodiments of the present disclosure relate to display features that facilitate observation of monitored physiological data. According to certain embodiments, a monitoring system may include a monitor capable of receiving data related to the physiological parameters and storing data related to the parameters. The monitor may include a microprocessor configured to determine a blood pressure baseline from the data and to establish an alarm sensitivity for blood pressure based on the blood pressure baseline. The alarm sensitivity may comprise a first tier, a second tier, a third tier, and a fourth tier, and each tier may correspond to a blood pressure range. The alarm sensitivity may relate to an acceptable percent shift of the blood pressure from the blood pressure baseline, and the acceptable percent shift for at least one of the tiers is different from the acceptable percent shift of another one of the tiers.Type: ApplicationFiled: July 9, 2013Publication date: November 7, 2013Inventors: Thomas Price, Ron J. Kadlec
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Publication number: 20130272105Abstract: A servo processor for an optical disk drive is provided that includes: an analog-to-digital converter for converting versions of photodetector output signals into digital signals; and a digital signal processor configured to receive the digital signals, the digital signal processor being further configured to determine a focus error signal (FES) and a tracking error signal (TES) from the digital signals, the digital signal processor being further configured to process TES and FES through servo algorithms to produce tracking and focus control signals.Type: ApplicationFiled: April 1, 2013Publication date: October 17, 2013Inventor: Ron J. Kadlec
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Patent number: 8498683Abstract: Embodiments of the present disclosure relate to display features that facilitate observation of monitored physiological data. According to certain embodiments, a monitoring system may include a monitor capable of receiving data related to the physiological parameters and storing data related to the parameters. The monitor may include a microprocessor capable of determining a respiration rate baseline from the data and establishing an alarm sensitivity for respiration rate based on the respiration rate baseline. The alarm sensitivity may comprise a first tier, a second tier, and a third tier. Each tier may correspond to a specific respiratory rate range and the alarm sensitivity may be selected based on which specific respiratory rate range encompasses the respiration rate baseline. Further, in certain embodiments a blood pressure baseline may be determined and an alarm sensitivity established based on the blood pressure baseline.Type: GrantFiled: April 30, 2010Date of Patent: July 30, 2013Assignee: Covidien LLPInventors: Thomas Price, Ron J. Kadlec
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Patent number: 8416651Abstract: A servo processor for an optical disk drive is provided that includes: an analog-to-digital converter for converting versions of photodetector output signals into digital signals; and a digital signal processor configured to receive the digital signals, the digital signal processor being further configured to determine a focus error signal (FES) and a tracking error signal (TES) from the digital signals, the digital signal processor being further configured to process TES and FES through servo algorithms to produce tracking and focus control signals.Type: GrantFiled: November 22, 2010Date of Patent: April 9, 2013Assignee: OD Servo Technologies, LLCInventor: Ron J Kadlec
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Publication number: 20110063958Abstract: A servo processor for an optical disk drive is provided that includes: an analog-to-digital converter for converting versions of photodetector output signals into digital signals; and a digital signal processor configured to receive the digital signals, the digital signal processor being further configured to determine a focus error signal (FES) and a tracking error signal (TES) from the digital signals, the digital signal processor being further configured to process TES and FES through servo algorithms to produce tracking and focus control signals.Type: ApplicationFiled: November 22, 2010Publication date: March 17, 2011Applicant: DPHI ACQUISITIONS, INC.Inventor: Ron J. Kadlec
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Patent number: 7839729Abstract: An optical disk drive is provided that includes: a plurality of photodetectors for receiving reflected light from an optical disk, each photodetector providing a photodetector output signal; an analog-to-digital converter for converting versions of the photodetector output signals into digital signals; and a digital signal processor configured to receive the digital signals, the digital signal processor being further configured to determine a focus error signal (FES) and a tracking error signal (TES) from the digital signals, the digital signal processor being further configured to process TES and FES through servo algorithms to produce tracking and focus control signals.Type: GrantFiled: January 3, 2008Date of Patent: November 23, 2010Assignee: DPHI Acquisitions, Inc.Inventor: Ron J. Kadlec