Patents by Inventor Sam Martin JELFS

Sam Martin JELFS 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).

  • Publication number: 20180177440
    Abstract: A sensor system comprises first and second PPG sensors. A monitoring system monitors detection by at least one of the first and second detectors an optical calibration signals, for performing time calibration between the first and second PPG sensors. This system makes use of two PPG sensors. To enable these sensors to be independent units, rather than being fully integrated into a combined system, a calibration system is provided. Based on detected optical signals, the behavior over time of each PPG sensor can be monitored and thus calibration can take place.
    Type: Application
    Filed: June 22, 2016
    Publication date: June 28, 2018
    Inventors: Sam Martin Jelfs, Jozef Hubertus Gelissen, Reinder Haakma, Laurentia Johanna Huijbregts, Adrianus Petrus Johanna Maria Rommers
  • Publication number: 20180140210
    Abstract: A sensor system comprises first and second PPG sensors. A monitoring system monitors detection by at least one of the first and second detectors an optical calibration signals, for performing time calibration between the first and second PPG sensors. This system makes use of two PPG sensors. To enable these sensors to be independent units, rather than being fully integrated into a combined system, a calibration system is provided. Based on detected optical signals, the behavior over time of each PPG sensor can be monitored and thus calibration can take place.
    Type: Application
    Filed: June 22, 2016
    Publication date: May 24, 2018
    Inventors: Sam Martin Jelfs, Jozef Hubertus Gelissen, Reinder Haakma, Laurentia Johanna Huijbregts, Adrianus Petrus Johanna Maria Rommers
  • Publication number: 20170367663
    Abstract: A method for assisting a user in selecting audible alarm settings of a patient monitoring system for monitoring a patient is provided. A synthesis model is generated in response to 1) data indicative of audio features derived from audio recorded in the patient room, and 2) data indicative of vital signs recorded from the patient monitoring system. Sets of audio parameters indicative of respective plurality of audible alarm settings are then processed according to the synthesis model so as to generate respective outputs, e.g. indicative of audibility of the plurality of alarm sounds according to the audible alarm settings synthesized to be played in or outside the patient room. These outputs can then be presented to a user, so as to allow the user to evaluate e.g. alarm audibility and noise level impact of the plurality of audible alarm settings, and e.g. adjust the settings accordingly, such as alarm thresholds etc.
    Type: Application
    Filed: December 11, 2015
    Publication date: December 28, 2017
    Inventors: STIJN DE WAELE, MUN HUM PARK, ARMIN GERHARD KOHLRAUSCH, ALBERTUS CORNELIS DEN BRINKER, SAM MARTIN JELFS, JOSEPH JAMES FRASSICA
  • Patent number: 9799210
    Abstract: There is provided a method of operating a device to generate a target sound that is audible to a user of the device, the method comprising measuring background noise in an environment in which the device is located; using a perceptual loudness model to predict an audibility of the target sound to the user of the device based on the measured background noise; using the output of the perceptual loudness model to determine a gain value that is to be applied to a source signal used to generate the target sound in order to provide at least a desired level of audibility of the target sound to the user; applying the determined gain value to the source signal to produce a modified source signal; and generating the target sound using the modified source signal.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: October 24, 2017
    Assignee: Koninklijke Philips N.V.
    Inventors: Armin Gerhard Kohlrausch, Mun Hum Park, Sam Martin Jelfs, Thomas Falck
  • Patent number: 9693739
    Abstract: There is provided a system for use with a patient in a healthcare environment, the system comprising a medical device configured to monitor or treat a patient, the medical device being for use in a room in which the patient is located and comprising an alarm unit configured to issue an audible alarm; a detection unit configured to detect whether a healthcare staff member is in the room in which the patient is located; a remote alarm unit configured to issue an alarm to alert a healthcare staff member located outside the room in which the patient is located; and a control unit that is connected to the medical device, the remote detection unit and the alarm unit, the control unit being configured to: (i) control the alarm unit in the medical device to issue an audible alarm in the event that the medical device detects an alarm condition for the patient or the medical device and the detection unit detects that a healthcare staff member is in the room in which the patient is located; and (ii) control the remote a
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: July 4, 2017
    Assignee: Koninklijke Philips N.V.
    Inventors: Armin Gerhard Kohlrausch, Thomas Falck, Mun Hum Park, Sam Martin Jelfs, Katja Leuschner
  • Publication number: 20160015329
    Abstract: There is provided a system for use with a patient in a healthcare environment, the system comprising a medical device configured to monitor or treat a patient, the medical device being for use in a room in which the patient is located and comprising an alarm unit configured to issue an audible alarm; a detection unit configured to detect whether a healthcare staff member is in the room in which the patient is located; a remote alarm unit configured to issue an alarm to alert a healthcare staff member located outside the room in which the patient is located; and a control unit that is connected to the medical device, the remote detection unit and the alarm unit, the control unit being configured to: (i) control the alarm unit in the medical device to issue an audible alarm in the event that the medical device detects an alarm condition for the patient or the medical device and the detection unit detects that a healthcare staff member is in the room in which the patient is located; and (ii) control the remote a
    Type: Application
    Filed: March 6, 2014
    Publication date: January 21, 2016
    Inventors: Armin Gerhard KOHLRAUSCH, Thomas FALCK, Mun Hum PARK, Sam Martin JELFS, Katja LEUSCHNER
  • Publication number: 20160005308
    Abstract: There is provided a method of operating a device to generate a target sound that is audible to a user of the device, the method comprising measuring background noise in an environment in which the device is located; using a perceptual loudness model to predict an audibility of the target sound to the user of the device based on the measured background noise; using the output of the perceptual loudness model to determine a gain value that is to be applied to a source signal used to generate the target sound in order to provide at least a desired level of audibility of the target sound to the user; applying the determined gain value to the source signal to produce a modified source signal; and generating the target sound using the modified source signal.
    Type: Application
    Filed: March 12, 2014
    Publication date: January 7, 2016
    Inventors: Armin Gerhard KOHLRAUSCH, Mun Hum PARK, Sam Martin JELFS, Thomas FALCK
  • Publication number: 20150358756
    Abstract: An audio apparatus comprises a receiver (201) which receives an audio signal. A generator (203) generates a multi-channel signal including a primary signal and a secondary signal. For example, the multi-channel signal may include a center speech signal and an ambient signal. A driver (205) generates drive signals for a set of loudspeakers (109-15) which for a loudspeaker will include at least a first signal component from the primary 5 signal and a second signal component from the secondary signal. A position circuit (207) determines the position of the loudspeaker (109) and the driver (205) adjusts a level of the primary signal component relative to a level of the secondary signal component in response to the first position relative to a reference position. The approach may allow automated adaptation of the audio rendering to specific loudspeaker configurations and may in particular 10 support optimized rendering for a plurality of listening zones.
    Type: Application
    Filed: January 27, 2014
    Publication date: December 10, 2015
    Inventors: Aki Sakari HARMA, Sam Martin JELFS, Werner Paulus Josephus DE BRUIJN