Patents by Inventor Gopal Erinjippurath

Gopal Erinjippurath 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: 20230314657
    Abstract: Environmental information combined with satellite driven observations and ground observations to create a predictor for wildfire at high spatial resolution. Temperature and precipitation are bias corrected using modeling and processing techniques driven from reanalysis datasets. Such techniques can be used to provide projections of future climate risk data at high temporal cadence over individual addresses or over large regions using spatial aggregation using polygon processing techniques.
    Type: Application
    Filed: April 2, 2023
    Publication date: October 5, 2023
    Inventors: Tristan Ballard, Matthew Cooper, Gopal Erinjippurath
  • Publication number: 20230152487
    Abstract: A plurality of climate models for a variety of hazards and/or initial conditions to produce a collection of Hazard Exposure (Risk) Maps. The Hazard Exposure Maps are transformed to high resolution (and may be filtered) and convolved with auxiliary data related to one or more hazards. The now super resolution maps are input to a learning engine along with spatiotemporally harmonized historic events and active near real-time events to produce a calibrated model (Asset Level Exposure Risk Estimation Model) that utilizes the super resolution maps and asset location(s) to project risk for each asset. The projected risk may be provided to asset operators/owners, initiate signal alerts and other messages, invoke automated responses to protect/preserve assets. The risk results may also be grouped in risk valuation datasets.
    Type: Application
    Filed: November 18, 2021
    Publication date: May 18, 2023
    Inventors: Gopal Erinjippurath, Tristan Ballard
  • Patent number: 10514542
    Abstract: Several embodiments of a personal display systems that comprises modular and extensible features to affect a range of user/wearer/viewer experiences. In one embodiment, the personal display system comprises a frame, said frame formed to fit and mount the head of a viewer; at least one optical piece, said at least one optical piece comprising at least a portion of a plurality of active emissive elements; at least one side piece, said side piece capable of being mated to said frame; and further wherein at least one said side piece comprising components sufficient to interact with images intended to comprise a view of said viewer. In another embodiment, a front piece may be mated to the frame of the personal display system wherein such front piece may comprise a transmissive portion affecting some form of modulation of the light being transmitted there through.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: December 24, 2019
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Gopal Erinjippurath, Andrew Healy, Thao D. Hovanky, Scott Daly
  • Patent number: 10206031
    Abstract: An audio apparatus is configured to switch, when there exists a first audio interface between the audio apparatus and a computer apparatus, to using a second audio interface between the audio apparatus and the computer apparatus, the second audio interface being different from the first audio interface. The switching comprises: receiving, via the first audio interface, combined audio data and non-audio data, the non-audio data comprising a request to switch to using the second audio interface; obtaining the request from the data; and, in response to obtaining the request, transmitting to the computer apparatus a confirmation of switching to using the second audio interface. The audio apparatus and the computer apparatus are described and claimed.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: February 12, 2019
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Glenn N. Dickins, Gopal Erinjippurath, Gary Spittle
  • Publication number: 20180011365
    Abstract: A display provides increased contrast and resolution via first LCD panel energized to generate an image and a second LCD panel configured to increase contrast of the image. The second panel is an LCD panel without color filters and is configured to increase contrast by decreasing black levels of dark portions of images using polarization rotation and filtration. The second LCD panel may have higher resolution than the first LCD panel. A half wave plate and/or film is placed in between the first and the second panel. The panels may be directly illuminated or edge lit, and may be globally or locally dimmed lights that may also include individual control of color intensities for each image or frame displayed.
    Type: Application
    Filed: September 8, 2017
    Publication date: January 11, 2018
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Jerome D. Shields, Marek Hadlaw, Gopal Erinjippurath
  • Patent number: 9864243
    Abstract: A display provides increased contrast and resolution via first LCD panel energized to generate an image and a second LCD panel configured to increase contrast of the image. The second panel is an LCD panel without color filters and is configured to increase contrast by decreasing black levels of dark portions of images (making them blacker or darker) using polarization rotation and filtration. Preferably, the second LCD panel is of higher resolution than the first LCD panel. The panels may be directly illuminated or edge lit, and may be globally or locally dimmed monochrome or multi primary lights that may also include individual control of color intensities for each image or frame displayed. The panels may be placed in any order, but preferably are arranged such that active layers in each panel are as close together as possible. Brightness is maintained by the combination of reusing polarization between the panels and by not going through more than one set of color filters.
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: January 9, 2018
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Gopal Erinjippurath, John Gilbert
  • Patent number: 9720231
    Abstract: Several embodiments of a personal display system are disclosed that comprises modular and extensible features to affect a range of user/wearer/viewer experiences. In one embodiment, the personal display system comprises a frame; a processor capable of sending image data signals and control signals; a display; an optic system, said optic system optically coupled to said at least one display; and a set of actuators, said actuators coupled to said frame and in communication with the optic system, such that said set of actuators are capable of moving the optic system, according to control signals sent from said processor. In another embodiment, a method for pre-warping input image data under processor control and according to ambient conditions, such as light and temperature, is disclosed.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: August 1, 2017
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Gopal Erinjippurath, Thao D. Hovanky, Andrew Healy
  • Publication number: 20160302004
    Abstract: An audio apparatus is configured to switch, when there exists a first audio interface between the audio apparatus and a computer apparatus, to using a second audio interface between the audio apparatus and the computer apparatus, the second audio interface being different from the first audio interface. The switching comprises: receiving, via the first audio interface, combined audio data and non-audio data, the non-audio data comprising a request to switch to using the second audio interface; obtaining the request from the data; and, in response to obtaining the request, transmitting to the computer apparatus a confirmation of switching to using the second audio interface. The audio apparatus and the computer apparatus are described and claimed.
    Type: Application
    Filed: April 8, 2016
    Publication date: October 13, 2016
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Glenn N. DICKINS, Gopal ERINJIPPURATH, Gary SPITTLE
  • Patent number: 9329430
    Abstract: A display including an image-generating panel and at least one contrast-enhancing panel, a cross BEF collimator between a backlight and one of the panels, and a polarization-preserving diffuser (e.g., holographic diffuser) between the panels. Typically, the contrast panel is upstream of the image panel, and a reflective polarizer is positioned between the cross BEF collimator or and contrast panel, with the reflective polarizer oriented relative to an initial polarizer of the contrast panel. Polarization of light transmitted by the reflective polarizer matches that transmitted by the initial polarizer. Collimated light propagating from the cross BEF collimator toward the contrast-enhancing panel is given a polarization bias by the reflective polarizer, which reflects incorrectly polarized light back toward the cross BEF collimator.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: May 3, 2016
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Gopal Erinjippurath, John Gilbert, Giorgio Giaretta, Vincent Kwong
  • Patent number: 9324250
    Abstract: Several embodiments of display systems are disclosed that comprise a backlight source, a first modulator, a second modulator and a controller. The backlight source may further comprise an edge-lit backlighting source that may be controlled to affect a field-sequential illumination for the dual or multiple modulator display system. In another embodiment, the display system may comprise two or more color primary emitters that each comprise a color gamut. When the color gamuts are driven in a field sequential pattern, the resulting overall gamut is substantially wider. Other display systems and methods are disclosed herein that affect a variety of 3D viewing embodiments. Systems, methods and techniques to increase the dynamic range, color gamut and bit precision of display systems comprising MEMS and/or IMODs are presented.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: April 26, 2016
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Brad Basler, Gopal Erinjippurath
  • Patent number: 9224323
    Abstract: Dual modulation display systems comprising a first modulation layer and a second modulation layer are disclosed, such that the first modulation layer and the second modulation layer are offset by a desired distance. In one embodiment, the offset distance may be an actual spatial offset distance in one, two or a preferred direction. In another embodiment, the offset distance may be a rotational offset between the two layers. In yet another embodiment, the offset may be a temporal offset between the images appearing on the first modulation layer and the second modulation layer. In yet another embodiment, the offset may be a combination of spatial, rotational and/or temporal offsets. The display system may comprise a controller capable of mapping input image data onto the first and second modulation layers via intermediate signals and the intermediate signals may be some function of the offset.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: December 29, 2015
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Ning Xu, Gopal Erinjippurath
  • Patent number: 9135864
    Abstract: A dual-panel display system is provided that comprises control modules and algorithms to select codeword pairs (CWs) to drive a first image-generating panel and a second contrast-improving panel. The first codewords is selected by considering some characteristics of the input image data (e.g., peak luminance) and to improve some image rendering metric (e.g., reduced parallax, reduced contouring, improved level precision). The first codeword may be selected to be the minimum first codeword within a set of codeword pairs that preserves the peak luminance required by the input image data. Also, the first codeword may be selected to minimize the number of Just Noticeable Difference (JND) steps in the final image to be rendered. The second codeword may be selected to similarly improve image quality according to a given quality metric.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: September 15, 2015
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Jerome Shields, Marek Hadlaw, Gopal Erinjippurath
  • Patent number: 8994714
    Abstract: In a class of embodiments, a method and system for calibrating a display using feedback indicative of measurements of light, emitted from the display (typically during display of a test pattern), by a camera device whose camera has a sensitivity function that is unknown a priori but which is operable to measure light emitted by a display in a manner emulating at least one measurement by a reference camera having a known sensitivity function. Typically, the camera device is a handheld camera device including an inexpensive, uncalibrated camera. In another class of embodiments, a system including a display (to be recalibrated), a video preprocessor coupled to the display, and a feedback subsystem including a camera device operable to measure light emitted by the display.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: March 31, 2015
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Gopal Erinjippurath, Glenn N. Dickins
  • Publication number: 20150002374
    Abstract: Several embodiments of a personal display systems that comprises modular and extensible features to affect a range of user/wearer/viewer experiences. In one embodiment, the personal display system comprises a frame, said frame formed to fit and mount the head of a viewer; at least one optical piece, said at least one optical piece comprising at least a portion of a plurality of active emissive elements; at least one side piece, said side piece capable of being mated to said frame; and further wherein at least one said side piece comprising components sufficient to interact with images intended to comprise a view of said viewer. In another embodiment, a front piece may be mated to the frame of the personal display system wherein such front piece may comprise a transmissive portion affecting some form of modulation of the light being transmitted there through.
    Type: Application
    Filed: December 12, 2012
    Publication date: January 1, 2015
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: Gopal Erinjippurath, Andrew Healy, Thao D. Hovanky, Scott Daly
  • Publication number: 20140327710
    Abstract: Dual modulation display systems comprising a first modulation layer and a second modulation layer are disclosed, such that the first modulation layer and the second modulation layer are offset by a desired distance. In one embodiment, the offset distance may be an actual spatial offset distance in one, two or a preferred direction. In another embodiment, the offset distance may be a rotational offset between the two layers. In yet another embodiment, the offset may be a temporal offset between the images appearing on the first modulation layer and the second modulation layer. In yet another embodiment, the offset may be a combination of spatial, rotational and/or temporal offsets. The display system may comprise a controller capable of mapping input image data onto the first and second modulation layers via intermediate signals and the intermediate signals may be some function of the offset.
    Type: Application
    Filed: April 28, 2014
    Publication date: November 6, 2014
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: Ning Xu, Gopal Erinjippurath
  • Patent number: 8880573
    Abstract: In an embodiment, a method performs computer operations using a first fractional precision and a second fractional precision. A computer program has a source variable, a destination variable, and an operation. The source variable has a first dynamic fractional precision, the destination variable has a second dynamic fractional precision that differs from the first dynamic fractional precision, and the operation is related to the source variable and the destination variable. The source variable is aligned to a format of the destination variable, according to the first dynamic fractional precision and the second dynamic fractional precision. The operation is performed using the destination variable and the source variable. A value is assigned to the destination variable according to the operation. In this manner, a single codebase may be written that operates on various hardware that each have different bit precision capabilities, without requiring additional development and verification effort.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: November 4, 2014
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Gopal Erinjippurath, Jared D. Smith
  • Patent number: 8773477
    Abstract: Edge lit displays are lit via a set (or individual) lighting elements. Each element projects light onto, for example, a zone which is then utilized directed as a backlight toward an LCD panel. An amount of light incident on any area (e.g., pixel) of the LCD panel (or SLM/series of SLMs) is calculated based on a sum of contributions from each zone. A similar process may be utilized for other lighting configurations. An amount of modulation performed by the LCD panel is then calculated based at least in part on lighting from the zones which may include brightness and varying levels of color content.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: July 8, 2014
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Gopal Erinjippurath, John Gilbert
  • Patent number: 8762437
    Abstract: In an embodiment, a method performs computer operations using a first fractional precision and a second fractional precision. A computer program has a source variable, a destination variable, and an operation. The source variable has a first dynamic fractional precision, the destination variable has a second dynamic fractional precision that differs from the first dynamic fractional precision, and the operation is related to the source variable and the destination variable. The source variable is aligned to a format of the destination variable, according to the first dynamic fractional precision and the second dynamic fractional precision. The operation is performed using the destination variable and the source variable. A value is assigned to the destination variable according to the operation. In this manner, a single codebase may be written that operates on various hardware that each have different bit precision capabilities, without requiring additional development and verification effort.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: June 24, 2014
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Gopal Erinjippurath, Jared D. Smith
  • Patent number: 8736674
    Abstract: Several embodiments of 3D display system and systems and methods for their calibration are disclosed herein. In one embodiment, a method and system for calibrating a 3D display using feedback indicative of measurements of light, emitted from the 3D display (typically during display of a test pattern), by a camera device. In one embodiment, the camera device is a handheld camera device including an inexpensive, uncalibrated camera. In another class of embodiments, a system including a 3D display (to be recalibrated), a video preprocessor coupled to the display, and a feedback subsystem including a camera device operable to measure light emitted by the display are also disclosed.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: May 27, 2014
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Thao Hovanky, Gopal Erinjippurath
  • Publication number: 20140085190
    Abstract: Several embodiments of a personal display system are disclosed that comprises modular and extensible features to affect a range of user/wearer/viewer experiences. In one embodiment, the personal display system comprises a frame; a processor capable of sending image data signals and control signals; a display; an optic system, said optic system optically coupled to said at least one display; and a set of actuators, said actuators coupled to said frame and in communication with the optic system, such that said set of actuators are capable of moving the optic system, according to control signals sent from said processor. In another embodiment, a method for pre-warping input image data under processor control and according to ambient conditions, such as light and temperature, is disclosed.
    Type: Application
    Filed: September 26, 2013
    Publication date: March 27, 2014
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: Gopal Erinjippurath, Thao D. Hovanky, Andrew Healy