Patents by Inventor Stefan Peana

Stefan Peana 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).

  • Patent number: 11969209
    Abstract: End user interactions at a display are monitored for predetermined conditions to provide augmentation of display presentation by a red light that illuminates in the 650 to 800 nm range, such as at substantially 670 nm. Instructions stored in non-transient memory and executed on a processor present visual images of varied color contrast and evaluate end user inputs to determine an end user visual acuity. Over time and use of the display and red light, end user visual acuity is periodically tested to evaluate the effectiveness of red light illumination to restore visual acuity.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: April 30, 2024
    Assignee: Dell Products L.P.
    Inventors: Stefan Peana, Todd E. Swierk, Timoteo T. Lee Kang
  • Publication number: 20240135504
    Abstract: An information handling system includes a display device and a processor. The display device outputs pixels associated with a text font. The processor converts red, green, blue (RGB) pixels to image perspective transformation (IPT) pixels. The processor further sharpens one or more of the IPT pixels that do not have color. The sharpening of the one or more of the IPT pixels identifies edges of the text font and defines widths of the text font. The processor corrects edge overshoot and edge undershoot created by a digital filter. The edge overshoot and the edge undershoot are corrected for each IPT pixel associated with the text edges. The processor also reduces noise enhancement in the sharpened IPT pixels, retains grey text portions of each of the sharpened IPT pixels, and converts the IPT pixels to new RGB pixels. The processor outputs the new RGB pixels to the display device.
    Type: Application
    Filed: October 20, 2022
    Publication date: April 25, 2024
    Inventors: Stefan Peana, Daniel Hamlin
  • Patent number: 11837146
    Abstract: Methods and a system for pixel-by-pixel correction of diffuse reflected and specular reflected light on a display device of an information handling system. Voltage values of pixels of the display device are measured by sensors. Measured voltage values of a pixel are converted to a digital value. A digital correction value calculated based on whether diffuse reflected light or diffuse reflected light and specular reflected light is found on the pixel. A sigmoid transfer function and discrete sharpening filter is performed on the pixel, if the digital correction value is less than zero.
    Type: Grant
    Filed: January 19, 2022
    Date of Patent: December 5, 2023
    Assignee: Dell Products L.P.
    Inventor: Stefan Peana
  • Patent number: 11735088
    Abstract: End user cumulative blue light exposure from a display is tracked over time so that a message may be provided to the end user if the exposure exceeds a threshold. For instance, a display frame buffer is retrieved to determine an average blue light component presented at the display, which is then adjusted based upon display characteristics, such as display size, luminance and brightness, end user distance to the display and a sensed ambient blue light component.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: August 22, 2023
    Assignee: Dell Products L.P.
    Inventors: Todd E. Swierk, Stefan Peana, Timoteo T. Lee Kang
  • Publication number: 20230230523
    Abstract: Described herein are methods and a system for pixel-by-pixel correction of diffuse reflected and specular reflected light on a display device of an information handling system. Voltage values of pixels of the display device are measured by sensors. Measured voltage value of a pixel are converted to a digital value. A digital correction value calculated based on whether diffuse reflected light or diffuse reflected light+specular reflected light is found on the pixel. A sigmoid transfer function and discrete sharpening filter is performed on the pixel, if the digital correction value is less than zero.
    Type: Application
    Filed: January 19, 2022
    Publication date: July 20, 2023
    Applicant: Dell Products L.P.
    Inventor: Stefan Peana
  • Publication number: 20230206409
    Abstract: Described herein are methods and a system to correct environmental light reflecting onto a surface of a display. An image is captured by camera which is processed as an image digital map. Light sources on the image digital map are determined based on correlated camera pixel map and display map. Light sources are on the image digital map are augmented by one or more ambient light sensors (ALS) placed on the periphery of the display. Image correction is performed based on the light sources of the image digital map.
    Type: Application
    Filed: December 23, 2021
    Publication date: June 29, 2023
    Applicant: Dell Products L.P.
    Inventors: Stefan Peana, Vivek Viswanathan Iyer
  • Patent number: 11635668
    Abstract: A louver film display structure, including: a first and a second electrode; a plurality of louver structures extending between the first and the second electrodes light transmissive elements positioned between adjacent louver structures of the plurality of louver structures, wherein: when a first voltage level is applied to the first and the second electrodes, the louver structures provide a first viewing angle of each unit area of light of each light transmissive element based on a first state of the louver structures, and when a second voltage level is applied to the first and the second electrodes, the louver structures provide a second viewing angle of each unit area of light of each light transmissive element based on a second state of the louver structures, wherein the first voltage level is greater than the second voltage level and the second viewing angle is greater than the first viewing angle.
    Type: Grant
    Filed: February 4, 2022
    Date of Patent: April 25, 2023
    Assignee: Dell Products L.P.
    Inventors: Stefan Peana, Deeder M. Aurongzeb
  • Patent number: 11592725
    Abstract: Embodiments of systems and methods for operating an electro-optical shutter with variable transmissivity are described. In some embodiments, an Information Handling System (IHS) may include a processor and a memory coupled to the processor, the memory having program instructions stored thereon that, upon execution, cause the IHS to: receive context information, and control a transmissivity of the electro-optical shutter of a camera coupled to the IHS, at least in part, based upon the context information.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: February 28, 2023
    Assignee: Dell Products, L.P.
    Inventors: Stefan Peana, Mitch Anthony Markow
  • Patent number: 11556148
    Abstract: In one embodiment, a method for managing visual uniformity in a foldable display includes identifying a hinge angle of the foldable display, the hinge angle indicating a degree to which the foldable display is opened or closed; receiving surface curvature data from a plurality of sensors of the foldable display, the surface curvature data indicating a mechanical state of a surface of the foldable display; accessing a plurality of surface maps stored in a display database of the foldable display, each of the plurality of surface maps indicating one or more display settings associated with a respective mechanical state of the surface of the foldable display; retrieving the one or more display settings from the display database based on the hinge angle and the surface curvature data; and causing a plurality of pixels to illuminate using the one or more display settings.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: January 17, 2023
    Assignee: Dell Products L.P.
    Inventors: Yagiz C. Yildiz, Stefan Peana, Philip M. Seibert, Kevin M. Turchin, Gerald R. Pelissier, Christopher A. Torres
  • Patent number: 11504947
    Abstract: Methods for manufacturing a multilayer composite display cover include stacking a plurality of composite layers, each comprising an ultra-thin glass sheet covered in a polymer layer. After a cover glass sheet is placed on an exposed polymer layer, the composite layers may be bonded together. A ceramic coating may be applied to the external surfaces to increase hardness.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: November 22, 2022
    Assignee: Dell Products L.P.
    Inventors: Deeder M. Aurongzeb, Stefan Peana
  • Patent number: 11481879
    Abstract: A method includes determining a first brightness level of a first video frame and a second brightness level of a second video frame, the second video frame immediately following the first video frame. In response to determining that the second brightness level differs from the first brightness level by at least a predetermined amount, the method includes modifying the brightness of the second video frame and a predetermined number of successive frames to provide successive fractional increments of brightness between the first brightness level and the second brightness level.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: October 25, 2022
    Assignee: Dell Products L.P.
    Inventors: Stefan Peana, Yagiz C. Yildiz
  • Publication number: 20220229466
    Abstract: In one embodiment, a method for managing visual uniformity in a foldable display includes identifying a hinge angle of the foldable display, the hinge angle indicating a degree to which the foldable display is opened or closed; receiving surface curvature data from a plurality of sensors of the foldable display, the surface curvature data indicating a mechanical state of a surface of the foldable display; accessing a plurality of surface maps stored in a display database of the foldable display, each of the plurality of surface maps indicating one or more display settings associated with a respective mechanical state of the surface of the foldable display; retrieving the one or more display settings from the display database based on the hinge angle and the surface curvature data; and causing a plurality of pixels to illuminate using the one or more display settings.
    Type: Application
    Filed: January 21, 2021
    Publication date: July 21, 2022
    Inventors: Yagiz C. Yildiz, Stefan Peana, Philip M. Seibert, Kevin M. Turchin, Gerald R. Pelissier, Christopher A. Torres
  • Publication number: 20220225871
    Abstract: End user interactions at a display are monitored for predetermined conditions to provide augmentation of display presentation by a red light that illuminates in the 650 to 800 nm range, such as at substantially 670 nm. Instructions stored in non-transient memory and executed on a processor present visual images of varied color contrast and evaluate end user inputs to determine an end user visual acuity. Over time and use of the display and red light, end user visual acuity is periodically tested to evaluate the effectiveness of red light illumination to restore visual acuity.
    Type: Application
    Filed: January 20, 2021
    Publication date: July 21, 2022
    Applicant: Dell Products L.P.
    Inventors: Stefan Peana, Todd E. Swierk, Timoteo T. Lee Kang
  • Publication number: 20220230576
    Abstract: End user cumulative blue light exposure from a display is tracked over time so that a message may be provided to the end user if the exposure exceeds a threshold. For instance, a display frame buffer is retrieved to determine an average blue light component presented at the display, which is then adjusted based upon display characteristics, such as display size, luminance and brightness, end user distance to the display and a sensed ambient blue light component.
    Type: Application
    Filed: January 20, 2021
    Publication date: July 21, 2022
    Applicant: Dell Products L.P.
    Inventors: Todd E. Swierk, Stefan Peana, Timoteo T. Lee Kang
  • Publication number: 20220231265
    Abstract: Apparatus and methods may be implemented to provide multi-layer display assembly apparatus for information handling systems, including portable information handling systems (e.g., such as smart phones, tablet computers, notebook computers, etc.) as well as display assembly apparatus for other types of information handling systems such as desktop computers, servers, etc. The disclosed multi-layer display assembly apparatus may be implemented to include multiple adhesive layers (e.g., two or more adhesive layers) that have different indices of refraction and/or different debonding characteristics, and that are disposed between a display substrate and an transparent protective hardcover such as glass-based or plastic-based cover.
    Type: Application
    Filed: April 6, 2022
    Publication date: July 21, 2022
    Inventors: Deeder Aurongzeb, Stefan Peana
  • Patent number: 11349103
    Abstract: Apparatus and methods may be implemented to provide multi-layer display assembly apparatus for information handling systems, including portable information handling systems (e.g., such as smart phones, tablet computers, notebook computers, etc.) as well as display assembly apparatus for other types of information handling systems such as desktop computers, servers, etc. The disclosed multi-layer display assembly apparatus may be implemented to include multiple adhesive layers (e.g., two or more adhesive layers) that have different indices of refraction and/or different debonding characteristics, and that are disposed between a display substrate and an transparent protective hardcover such as glass-based or plastic-based cover.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: May 31, 2022
    Assignee: Dell Products L.P.
    Inventors: Deeder Aurongzeb, Stefan Peana
  • Publication number: 20220155649
    Abstract: A louver film display structure, including: a first and a second electrode; a plurality of louver structures extending between the first and the second electrodes light transmissive elements positioned between adjacent louver structures of the plurality of louver structures, wherein: when a first voltage level is applied to the first and the second electrodes, the louver structures provide a first viewing angle of each unit area of light of each light transmissive element based on a first state of the louver structures, and when a second voltage level is applied to the first and the second electrodes, the louver structures provide a second viewing angle of each unit area of light of each light transmissive element based on a second state of the louver structures, wherein the first voltage level is greater than the second voltage level and the second viewing angle is greater than the first viewing angle.
    Type: Application
    Filed: February 4, 2022
    Publication date: May 19, 2022
    Inventors: Stefan Peana, Deeder M. Aurongzeb
  • Patent number: 11335245
    Abstract: A first light emitting diode has a first driving input, and emits a red color light. A second light emitting diode has a second driving input, and emits a green color light. A third light emitting diode has a third driving input, and emits a blue color light. When a first current is applied to the third driving input, the third light emitting diode produces a first amount of blue light energy. When a second current is applied to the third driving input, the third light emitting diode produces a second amount of the blue light energy. The second amount of blue light energy corresponds to a percentage of blue energy reduction as compared to the amount of first blue light energy.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: May 17, 2022
    Assignee: Dell Products L.P.
    Inventors: Stefan Peana, Deeder M. Aurongzeb
  • Patent number: 11307482
    Abstract: A louver film display structure, including: a first and a second electrode; a plurality of louver structures extending between the first and the second electrodes light transmissive elements positioned between adjacent louver structures of the plurality of louver structures, wherein: when a first voltage level is applied to the first and the second electrodes, the louver structures provide a first viewing angle of each unit area of light of each light transmissive element based on a first state of the louver structures, and when a second voltage level is applied to the first and the second electrodes, the louver structures provide a second viewing angle of each unit area of light of each light transmissive element based on a second state of the louver structures, wherein the first voltage level is greater than the second voltage level and the second viewing angle is greater than the first viewing angle.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: April 19, 2022
    Assignee: Dell Products L.P.
    Inventors: Stefan Peana, Deeder M. Aurongzeb
  • Patent number: 11276371
    Abstract: Systems and methods for identifying and correcting illumination sources are described. In some embodiments, an Information Handling System (IHS) may include a processor and a memory coupled to the processor, the memory having program instructions stored thereon that, upon execution, cause the IHS to: receive a measurement from an Ambient Light Sensor (ALS); determine that the measurement indicates an increase in ambient illumination equal to or greater than a threshold value; in response to the determination, receive an image from a charge-coupled device (CCD) sensor; extract illumination data from the image; and adjust the measurement in response to the illumination data.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: March 15, 2022
    Assignee: Dell Products, L.P.
    Inventors: Stefan Peana, Karun Palicherla Reddy, John Trevor Morrison