Patents by Inventor Rashmi Kumar Raj

Rashmi Kumar Raj 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: 10497337
    Abstract: An example of a virtual luminaire store allows a user to select an image or the like for a luminaire appearance and a set of performance parameters related to a virtual luminaire. Based on the user selection, a configuration information file is obtained and transmitted to a software configurable lighting device. The software configurable lighting device receives the transmitted file, stores the transmitted file and generates illumination in accordance with the configuration information from the file.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: December 3, 2019
    Assignee: ABL IP HOLDING LLC
    Inventors: Jack C. Rains, Jr., Mark A. Black, David P. Ramer, Rashmi Kumar Raj, Hampton Boone Maher
  • Patent number: 10490118
    Abstract: For a luminaire offering both illumination and display functionality, control strategies coordinate illumination/image output so as to mitigate interference of the illumination light output with aspects of the displayed image light output. In one example, when displaying a selected image with one or more white regions in the image, a sufficient number of selected white illumination emitters can be ON or operating in a low power state in the white regions while the rest of the luminaire output area can display the non-white elements of the image with aligned illumination emitters turned OFF. In another example, an image is displayed in a selected region of the luminaire output while illumination emitters within the area displaying the image are OFF or operating in a low power state, but illumination emitters along other parts of the luminaire output are turned ON.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: November 26, 2019
    Assignee: ABL IP HOLDING LLC
    Inventors: Ravi Kumar Komanduri, Guan-Bo Lin, An Mao, David P. Ramer, Rashmi Kumar Raj
  • Patent number: 10367034
    Abstract: The examples relate to various implementations of a software configurable luminaire and a transparent display device for use in such a luminaire. The luminaire is able to generate light sufficient to provide general illumination of a space in which the luminaire is installed and provide an image display. The general illumination is provided by additional light sources and/or improved display components of the transparent display device.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: July 30, 2019
    Assignee: ABL IP HOLDING LLC
    Inventors: Guan-Bo Lin, An Mao, Ravi Kumar Komanduri, David P. Ramer, Rashmi Kumar Raj
  • Patent number: 10349488
    Abstract: The examples relate to various implementations of a software configurable lighting device, installed as a panel, that offers the capability to appear like and emulate a variety of different lighting devices. Emulation includes the appearance of the lighting device as installed in the wall or ceiling, possibly, both when lighting and when not lighting, as well as light output distribution, e.g. direction and/or beam shape.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: July 9, 2019
    Assignee: ABL IP HOLDING LLC
    Inventors: Mark A. Black, Jack C. Rains, Jr., David P. Ramer, Rashmi Kumar Raj, An Mao, Ravi Kumar Komanduri, Hampton Boone Maher
  • Patent number: 10332443
    Abstract: Examples of a lighting and display type luminaire use relatively transparent lighting devices. In such a luminaire, a light transmissive element of the lighting device is coupled to an output of a display device. For example, an edge lit lighting device includes an optical waveguide and one or more illumination light sources coupled to supply light to/through a surface along an edge or periphery of the waveguide. The waveguide allows emission of illumination light through a front surface. A display is coupled to a back surface of the waveguide. During display operations, the waveguide is sufficiently transparent to allow image display light to pass through the waveguide for emission through the front surface of the waveguide. Another example utilizes a light transmissive OLED (organic light emitting diode) panel as the relatively transparent lighting device.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: June 25, 2019
    Assignee: ABL IP HOLDING LLC
    Inventors: Ravi Kumar Komanduri, Gregory Malone, David P. Ramer, Rashmi Kumar Raj
  • Patent number: 10256277
    Abstract: The examples relate to various implementations of a software configurable luminaire and a transparent display device for use in such a luminaire. The luminaire is able to generate light sufficient to provide general illumination of a space in which the luminaire is installed and provide an image display. The general illumination is provided by additional light sources and/or improved display components of the transparent display device.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: April 9, 2019
    Assignee: ABL IP HOLDING LLC
    Inventors: Guan-Bo Lin, An Mao, Ravi Kumar Komanduri, David P. Ramer, Rashmi Kumar Raj
  • Patent number: 10191272
    Abstract: The examples herein relate to assembly techniques and structures for an electrowetting cell, e.g. a fluid lens, a fluid prism or a single cell that may support both variable lens and variable prism functions. The resulting cell structure, for example, may support both beam shaping and steering functions, e.g. supporting use of the same electrowetting cell structure for a wider variety of optical processing applications. The resulting cell may be used in combination with an optical/electrical transducer or an array of cells may be used with a transducer in systems for a various light input and/or output applications.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: January 29, 2019
    Assignee: ABL IP HOLDING LLC
    Inventors: An Mao, Gregory Malone, Robert M. Krass, Youssef F. Baker, Rashmi Kumar Raj
  • Patent number: 10193626
    Abstract: Networked intelligent lighting devices may utilize visual light communication to perform autonomous neighbor discovery, for example, as part of a map generation process. Individually, each intelligent lighting device within an installation transmits a series of packets via visual light communication for receipt by one or more of the other intelligent lighting devices. Receiving intelligent lighting devices record the number of received packets from each transmitter. Records of numbers of received packets are conveyed via a data communication network to a centralized process. The centralized process utilizes the conveyed records to determine neighbor relationships between lighting devices, for example to generate a map of devices as located within the installation.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: January 29, 2019
    Assignee: ABL IP HOLDING LLC
    Inventors: Rashmi Kumar Raj, Jason W. Rogers, Hampton Boone Maher, Sean P. White
  • Patent number: 10176765
    Abstract: The examples relate to various implementations of a software configurable lighting device, having an enhance display device that is able to generate light sufficient to provide general illumination of a space in which the lighting device is installed and provide an image display. The general illumination is provided by additional light sources and/or improved display components of the enhanced display device.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: January 8, 2019
    Assignee: ABL IP HOLDING LLC
    Inventors: Ravi Komanduri, Rashmi Kumar Raj, An Mao, Guan-Bo Lin, Hampton Boone Maher, Jonathan Lloyd Goodman, David P. Ramer
  • Publication number: 20180352626
    Abstract: For a luminaire offering both illumination and display functionality, control strategies coordinate illumination/image output so as to mitigate interference of the illumination light output with aspects of the displayed image light output. In one example, when displaying a selected image with one or more white regions in the image, a sufficient number of selected white illumination emitters can be ON or operating in a low power state in the white regions while the rest of the luminaire output area can display the non-white elements of the image with aligned illumination emitters turned OFF. In another example, an image is displayed in a selected region of the luminaire output while illumination emitters within the area displaying the image are OFF or operating in a low power state, but illumination emitters along other parts of the luminaire output are turned ON.
    Type: Application
    Filed: June 1, 2017
    Publication date: December 6, 2018
    Inventors: Ravi Kumar KOMANDURI, Guan-Bo LIN, An MAO, David P. RAMER, Rashmi Kumar RAJ
  • Patent number: 10129937
    Abstract: Disclosed herein is a lighting device including a luminaire having a first light emitter configured to output image and a second light emitter configured to output illumination light. The first light emitter is oriented with the second light emitter such that an available output region of the second light emitter at least substantially overlaps an available output region of the first light emitter. The lighting device also includes a processing system coupled to a driver system, which is coupled to the luminaire. The processing system, via the driver system, is configured to operate the first light emitter to output the image and operate the second light emitter to output the illumination light; and during the operations of the first and light emitters to output a combined light via the substantial overlap, to control the output of at least one of the image or the illumination light to control flicker due to interaction of a portion of the image and a portion of the illumination light.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: November 13, 2018
    Assignee: ABL IP HOLDING LLC
    Inventors: Guan-Bo Lin, Gregory Malone, Hampton Boone Maher, Rashmi Kumar Raj, David P. Ramer
  • Publication number: 20180292642
    Abstract: The examples herein relate to assembly techniques and structures for an electrowetting cell, e.g. a fluid lens, a fluid prism or a single cell that may support both variable lens and variable prism functions. The resulting cell structure, for example, may support both beam shaping and steering functions, e.g. supporting use of the same electrowetting cell structure for a wider variety of optical processing applications. The resulting cell may be used in combination with an optical/electrical transducer or an array of cells may be used with a transducer in systems for a various light input and/or output applications.
    Type: Application
    Filed: April 5, 2017
    Publication date: October 11, 2018
    Inventors: An MAO, Gregory MALONE, Robert M. KRASS, Youssef F. BAKER, Rashmi Kumar RAJ
  • Patent number: 10083495
    Abstract: The examples relate to various implementations of a software configurable lighting device having a multi-processor system including a central processing unit and a parallel processing unit. The software configurable lighting device utilizes the multi-processor system to efficiently transform and/or modify control data. The software configurable lighting device also includes a transparent image display device and a general illumination device. Transformed and/or modified control data is utilized to drive the transparent image display device and the general illumination device in combination.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: September 25, 2018
    Assignee: ABL IP HOLDING LLC
    Inventors: Jonathan Lloyd Goodman, Hampton Boone Maher, Ravi Komanduri, Rashmi Kumar Raj
  • Publication number: 20180248624
    Abstract: Networked intelligent lighting devices may utilize visual light communication to perform autonomous neighbor discovery, for example, as part of a map generation process. Individually, each intelligent lighting device within an installation transmits a series of packets via visual light communication for receipt by one or more of the other intelligent lighting devices. Receiving intelligent lighting devices record the number of received packets from each transmitter. Records of numbers of received packets are conveyed via a data communication network to a centralized process. The centralized process utilizes the conveyed records to determine neighbor relationships between lighting devices, for example to generate a map of devices as located within the installation.
    Type: Application
    Filed: April 27, 2018
    Publication date: August 30, 2018
    Inventors: Rashmi Kumar Raj, Jason W. Rogers, Hampton Boone Maher, Sean P. White
  • Publication number: 20180226014
    Abstract: Examples of a lighting and display type luminaire use relatively transparent lighting devices. In such a luminaire, a light transmissive element of the lighting device is coupled to an output of a display device. For example, an edge lit lighting device includes an optical waveguide and one or more illumination light sources coupled to supply light to/through a surface along an edge or periphery of the waveguide. The waveguide allows emission of illumination light through a front surface. A display is coupled to a back surface of the waveguide. During display operations, the waveguide is sufficiently transparent to allow image display light to pass through the waveguide for emission through the front surface of the waveguide. Another example utilizes a light transmissive OLED (organic light emitting diode) panel as the relatively transparent lighting device.
    Type: Application
    Filed: February 3, 2017
    Publication date: August 9, 2018
    Inventors: Ravi Kumar Komanduri, Gregory Malone, David P. Ramer, Rashmi Kumar Raj
  • Publication number: 20180180256
    Abstract: A cellular electrowetting array, e.g. for a luminaire, includes a liquid container having opposing transparent windows. The container contains conductive and non-conductive liquids. A grid wall extends from one of the windows at least partially across the interior volume of the container toward the opposite window. The grid wall divides the interior volume into cellular fluidic optics, each containing some conductive liquid and some non-conductive liquid. The individual cells may be square, although other shapes may be used. A first electrode electrically connects to the grid wall; and a second electrode contacts the conductive liquid. System examples combine such an electrowetting array with a positive or negative lens array, e.g. optically coupled to one of the windows of the array. The electrowetting array or a system combining that array with another lens array may be utilized in a luminaire, e.g. to provide a tunable distribution of the general illumination output.
    Type: Application
    Filed: December 23, 2016
    Publication date: June 28, 2018
    Inventors: An Mao, Guan-Bo Lin, Ravi Kumar Komanduri, Rashmi Kumar Raj, David P. Ramer
  • Publication number: 20180018749
    Abstract: The examples relate to various implementations of a software configurable lighting device having a multi-processor system including a central processing unit and a parallel processing unit. The software configurable lighting device utilizes the multi-processor system to efficiently transform and/or modify control data. The software configurable lighting device also includes a transparent image display device and a general illumination device. Transformed and/or modified control data is utilized to drive the transparent image display device and the general illumination device in combination.
    Type: Application
    Filed: July 15, 2016
    Publication date: January 18, 2018
    Inventors: Jonathan Lloyd GOODMAN, Hampton Boone MAHER, Ravi KOMANDURI, Rashmi Kumar RAJ
  • Publication number: 20180005590
    Abstract: The examples relate to various implementations of a software configurable lighting device, having an enhance display device that is able to generate light sufficient to provide general illumination of a space in which the lighting device is installed and provide an image display. The general illumination is provided by additional light sources and/or improved display components of the enhanced display device.
    Type: Application
    Filed: June 30, 2016
    Publication date: January 4, 2018
    Inventors: Ravi Komanduri, Rashmi Kumar Raj, An Mao, Guan-Bo Lin, Hampton Boone Maher, Jonathan Lloyd Goodman, David P. Ramer
  • Publication number: 20170353240
    Abstract: An example of a power and modulation circuit utilizes a very high frequency switching power converter to supply drive current power to cause a solid state light source to emit light. The power converter is configured to convert power from a power source to direct current to supply via the output to the light source, at least in part by a switching function of the power converter at a very high frequency rate. The circuit, in such an example, also includes a control circuit coupled to be responsive to input data and control operation of the power converter so that the current output to drive the light source modulates the light emitted from the light source to also carry the input data.
    Type: Application
    Filed: August 25, 2017
    Publication date: December 7, 2017
    Inventor: Rashmi Kumar Raj
  • Publication number: 20170292681
    Abstract: The examples relate to various implementations of a software configurable luminaire and a transparent display device for use in such a luminaire. The luminaire is able to generate light sufficient to provide general illumination of a space in which the luminaire is installed and provide an image display. The general illumination is provided by additional light sources and/or improved display components of the transparent display device.
    Type: Application
    Filed: April 11, 2016
    Publication date: October 12, 2017
    Inventors: Guan-Bo LIN, An MAO, Ravi Kumar KOMANDURI, David P. RAMER, Rashmi Kumar RAJ