Patents by Inventor Peter Johan NYSTROM
Peter Johan NYSTROM 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: 10065422Abstract: A printhead includes an aperture plate having an array of nozzles therethrough. The printhead further includes an array of jets fluidly connected to an ink supply chamber, each jet comprising a body chamber having a length:width ratio of at least 3:1. The body chamber comprises a first end, and a second end opposite the first end, the first end and the second end defining a height. Ink flows into body chamber through an inlet, and an outlet on the first end is fluidly connected to a nozzle. A diaphragm is present adjacent the second end of each body chamber in the array of jets. The body chambers are angled relative to a row of nozzles.Type: GrantFiled: January 19, 2017Date of Patent: September 4, 2018Assignee: XEROX CORPRORATIONInventor: Peter Johan Nystrom
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Publication number: 20170129242Abstract: A printhead includes an aperture plate having an array of nozzles therethrough. The printhead further includes an array of jets fluidly connected to an ink supply chamber, each jet comprising a body chamber having a length:width ratio of at least 3:1. The body chamber comprises a first end, and a second end opposite the first end, the first end and the second end defining a height. Ink flows into body chamber through an inlet, and an outlet on the first end is fluidly connected to a nozzle. A diaphragm is present adjacent the second end of each body chamber in the array of jets. The body chambers are angled relative to a row of nozzles.Type: ApplicationFiled: January 19, 2017Publication date: May 11, 2017Inventor: Peter Johan Nystrom
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Patent number: 9550358Abstract: A printhead includes an aperture plate having an array of nozzles therethrough. The printhead further includes an array of jets fluidly connected to an ink supply chamber, each jet comprising a body chamber having a length:width ratio of at least 3:1. The body chamber comprises a first end, and a second end opposite the first end, the first end and the second end defining a height. Ink flows into body chamber through an inlet, and an outlet on the first end is fluidly connected to a nozzle. A diaphragm is present adjacent the second end of each body chamber in the array of jets. The body chambers are angled relative to a row of nozzles.Type: GrantFiled: May 13, 2014Date of Patent: January 24, 2017Assignee: XEROX CORPORATIONInventor: Peter Johan Nystrom
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Patent number: 9433386Abstract: What is disclosed is a method for monitoring a subject for cardiac arrhythmia such as atrial fibrillation using an apparatus that can be comfortably worn by the subject around an area of exposed skin where a photoplethysmographic (PPG) signal can be registered. In one embodiment, the apparatus is a reflective or transmissive wrist-worn device with emitter/detector pairs fixed to an inner side of a band with at least one illuminator emitting source light at a specified wavelength band. The illuminator is paired to a respective photodetector comprising one or more sensors that are sensitive to a wavelength band of its paired illuminator. The photodetector measures intensity of sensed light emitted by a respective illuminator. The signal obtained by the sensors comprises a continuous PPG signal. The continuous PPG signal analyzed for peak-to-peak pulse points from which the existence of cardiac arrhythmia such as atrial fibrillation event can be determined.Type: GrantFiled: July 9, 2013Date of Patent: September 6, 2016Assignee: Xerox CorporationInventors: Lalit Keshav Mestha, Survi Kyal, Barry P. Mandel, Peter Johan Nystrom
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Publication number: 20150328889Abstract: A printhead includes an aperture plate having an array of nozzles therethrough. The printhead further includes an array of jets fluidly connected to an ink supply chamber, each jet comprising a body chamber having a length:width ratio of at least 3:1. The body chamber comprises a first end, and a second end opposite the first end, the first end and the second end defining a height. Ink flows into body chamber through an inlet, and an outlet on the first end is fluidly connected to a nozzle. A diaphragm is present adjacent the second end of each body chamber in the array of jets. The body chambers are angled relative to a row of nozzles.Type: ApplicationFiled: May 13, 2014Publication date: November 19, 2015Applicant: Xerox CorporationInventor: Peter Johan Nystrom
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Publication number: 20150018647Abstract: What is disclosed is a system and method for monitoring a subject of interest for functional blood oxygen saturation using an apparatus that can be comfortably worn by the subject around an area of exposed skin where a photoplethysmographic (PPG) signal can be registered. In one embodiment, the apparatus is a reflective or transmissive wrist-worn device with emitter/detector pairs fixed to an inner side of a band with at least two illuminators, each emitting source light at a different wavelength band. Each photodetector comprises sensors that are sensitive to a wavelength band of its respective illuminator. Each photodetector measures an intensity of sensed light emitted by a respective illuminator. The signal obtained by the sensors comprises a continuous PPG signal. The continuous PPG signal analyzed for functional blood oxygen saturation levels and communicated to a remote device. Various embodiments are disclosed.Type: ApplicationFiled: July 9, 2013Publication date: January 15, 2015Applicant: XEROX CORPORATIONInventors: Barry P. MANDEL, Peter Johan NYSTROM, Lalit Keshav MESTHA
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Publication number: 20150018654Abstract: What is disclosed is a system and method for monitoring a subject of interest for fractional blood oxygen saturation using an apparatus that can be comfortably worn by the subject around an area of exposed skin where a photoplethysmographic (PPG) signal can be registered. In one embodiment, the apparatus is a reflective or transmissive wrist-worn device with emitter/detector pairs fixed to an inner side of a band with at least three illuminators, each emitting source light at a different wavelength band. Each photodetector comprises sensors that are sensitive to a wavelength band of a respective illuminator. Each photodetector measures an intensity of sensed light emitted by a respective illuminator. The signal obtained by the sensors comprises a continuous PPG signal. The continuous PPG signal analyzed for fractional blood oxygen saturation levels and communicated to a remote device. Various embodiments are disclosed.Type: ApplicationFiled: July 9, 2013Publication date: January 15, 2015Inventors: Lalit Keshav MESTHA, Barry P. MANDEL, Peter Johan NYSTROM
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Publication number: 20150018693Abstract: What is disclosed is a method for monitoring a subject for cardiac arrhythmia such as atrial fibrillation using an apparatus that can be comfortably worn by the subject around an area of exposed skin where a photoplethysmographic (PPG) signal can be registered. In one embodiment, the apparatus is a reflective or transmissive wrist-worn device with emitter/detector pairs fixed to an inner side of a band with at least one illuminator emitting source light at a specified wavelength band. The illuminator is paired to a respective photodetector comprising one or more sensors that are sensitive to a wavelength band of its paired illuminator. The photodetector measures intensity of sensed light emitted by a respective illuminator. The signal obtained by the sensors comprises a continuous PPG signal. The continuous PPG signal analyzed for peak-to-peak pulse points from which the existence of cardiac arrhythmia such as atrial fibrillation event can be determined.Type: ApplicationFiled: July 9, 2013Publication date: January 15, 2015Inventors: Lalit Keshav MESTHA, Survi KYAL, Barry P. MANDEL, Peter Johan NYSTROM
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Publication number: 20140240511Abstract: What is disclosed is a system and method for focusing a camera on an object of interest in a scene. In one embodiment, an illuminator comprising a light source which emits light at a desired wavelength band is aimed at an object in a scene. The source light beam impacts the object at an aim point. A spectral sensing device senses a reflection of the projected light beam off the object. In response to the reflected light beam having been detected by the spectral sensing device, a location of the object in the scene is determined and communicated to a video acquisition system. A focus of the video system is changed so that the object is brought into the camera's field of view. The object can be tracked as it moves about the scene. A spectral image of the object can be captured and analyzed for the object's material composition.Type: ApplicationFiled: February 25, 2013Publication date: August 28, 2014Applicant: XEROX CORPORATIONInventors: Peter Johan NYSTROM, Lalit Keshav MESTHA