Patents by Inventor Jignesh Gandhi

Jignesh Gandhi 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: 20150294613
    Abstract: A method of operating a display including loading image data to pixels in multiple rows of pixels in an array of pixels during a data loading phase, actuating the pixels in the multiple rows during an update phase, and illuminating at least one lamp during an lamp illumination phase to illuminate the actuated pixels to form an image on the display, in which each of the loading, actuating and illuminating phases partially overlap in time.
    Type: Application
    Filed: June 24, 2015
    Publication date: October 15, 2015
    Inventors: Jignesh Gandhi, Jasper Lodewyk Steyn, John J. Fijol, Roger W. Barton, Stephen R. Lewis, Abraham McAllister, Nesbitt W. Hagood, IV
  • Publication number: 20150281948
    Abstract: A method for routing calls between a third party telecommunications device (“TD”) and a subscriber TD associated with a primary service and a second line service (“SLS”) involves associating the SLS number of the subscriber, the primary number of the subscriber and the primary number of a third party via a common relationship number. Calls directed from a third party to the SLS number of a subscriber are routed to an SLS platform and redirected to the subscriber TD. Calls directed from the subscriber TD to the third party use the relationship number to route the call to the SLS platform. The combination of the primary service number and the relationship number identifies the third party number for call completion. Calls can be directed to and from an SLS number of a subscriber TD using a combination of protocols such as ISUP, CAP and SIP.
    Type: Application
    Filed: May 31, 2015
    Publication date: October 1, 2015
    Inventors: George Backhaus, Jignesh Gandhi, Julio Gonzalez, John Green, Philip Lowman, Paul Rubenstein, Mike Speanburg
  • Publication number: 20150271731
    Abstract: A method and system for the leveraging a reserved relationship number by an SLS platform and/or SLS phone module for the purpose of performing special operations other than making an SLS call available for termination at a subscriber TD and/or a third party TD involve associating the SLS phone number of the subscriber, the primary number of the subscriber and a next set of instructions via a common reserved relationship number.
    Type: Application
    Filed: June 1, 2015
    Publication date: September 24, 2015
    Inventors: George Backhaus, Jignesh Gandhi, Julio Gonzalez, John Green, Philip Lowman, Paul Rubenstein, Mike Speanburg
  • Publication number: 20150271774
    Abstract: A method for servicing an SLS based communication request between a third party TD that is situated inside of the locality serviced by its primary service provider network and a TD associated with an SLS subscriber that is situated outside of the locality serviced by its primary service provider network involves associating the local SLS phone number of the subscriber, the primary number of the subscriber and the primary number of a third party via a common relationship number. Calls directed from a third party to the SLS phone number of a subscriber are routed to an SLS platform and redirected to the subscriber TD. Calls directed from the subscriber TD to the third party use the relationship number to route the call to the SLS platform. The combination of the primary service number and the relationship number identifies the third party number for call completion.
    Type: Application
    Filed: June 1, 2015
    Publication date: September 24, 2015
    Inventors: George Backhaus, Jignesh Gandhi, Julio Gonzalez, John Green, Philip Lowman, Paul Rubenstein, Mike Speanburg
  • Publication number: 20150271336
    Abstract: A method and system are described for servicing a second line service (“SLS”) based communication request originating from a subscriber's telecommunications device (“TD”) even if the call signal does not include sufficient information to identify the phone number from which the subscriber initiated the call. The method involves associating the SLS phone number of the subscriber, the primary number of the subscriber and the primary number of a third party via a special relationship number.
    Type: Application
    Filed: June 1, 2015
    Publication date: September 24, 2015
    Inventors: George Backhaus, Jignesh Gandhi, Julio Gonzalez, John Green, Philip Lowman, Paul Rubenstein, Mike Speanburg
  • Patent number: 9140900
    Abstract: A display for imaging includes an aperture layer and a set of light modulators. The aperture layer includes a light absorbing layer disposed over a light reflecting layer, each layer having a set of apertures defined therein. The light absorbing layer includes light absorbing material suspended in a photosensitive resin. The set of light modulators are for modulating light passing through the apertures defined in the aperture layer.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: September 22, 2015
    Assignee: Pixtronix, Inc.
    Inventors: Eugene E. Fike, III, John J. Fijol, Timothy J. Brosnihan, Jignesh Gandhi
  • Patent number: 9135868
    Abstract: A direct-view display includes an array of MEMS light modulators and a control matrix formed on a transparent substrate, where each light modulator can be driven into at least two states, and a controller for controlling the states of each light modulator in the array. The control matrix transmits data and actuation voltages to the array. The controller includes an input, a processor, a memory, and an output. The input receives image data encoding an image frame for display. The processor derives a plurality of sub-frame data sets from the image data, where each sub-frame data set indicates desired states of light modulators in multiple rows and multiple columns of the array. The memory stores the plurality of sub-frame data sets. The output outputs the plurality of sub-frame data sets according to an output sequence to drive light modulators into the states indicated in the sub-frame data sets.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: September 15, 2015
    Assignee: Pixtronix, Inc.
    Inventors: Nesbitt W. Hagood, IV, Jignesh Gandhi, Abraham McAllister, Rainer M. Malzbender, Stephen R. Lewis
  • Patent number: 9087486
    Abstract: A method of operating a display including loading image data to pixels in multiple rows of pixels in an array of pixels during a data loading phase, actuating the pixels in the multiple rows during an update phase, and illuminating at least one lamp during an lamp illumination phase to illuminate the actuated pixels to form an image on the display, in which each of the loading, actuating and illuminating phases partially overlap in time.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: July 21, 2015
    Assignee: Pixtronix, Inc.
    Inventors: Jignesh Gandhi, Jasper Lodewyk Steyn, John J. Fijol, Roger W. Barton, Stephen R. Lewis, Abraham McAllister, Nesbitt W. Hagood
  • Publication number: 20150185466
    Abstract: This disclosure provides systems, methods and apparatus for a MEMS display apparatus incorporating a tiered backplane slot structure. The backplane can include two or more light-blocking layers defining optical windows and positioned at different heights. Light can pass through the optical windows of the display apparatus at an angle. In some implementations, the angle can be based on the index of refraction of a transparent material inside the display apparatus. The transmission of off-axis and on-axis light can be improved by varying the widths of the optical windows in each layer of the backplane. In some implementations, the difference in the widths of optical windows of adjacent layers can be substantially equal to the separation distance between the layers.
    Type: Application
    Filed: April 16, 2014
    Publication date: July 2, 2015
    Applicant: Pixtronix, Inc.
    Inventors: Xiang-Dong MI, Jianru SHI, Jignesh GANDHI
  • Publication number: 20140375538
    Abstract: This disclosure provides systems, methods and apparatus for modulating light for a display. The system includes a light blocking layer including a reflective layer and a light absorbing layer. The light blocking layer is configured such that any conductive components therein underlie or cover less than a majority of the circuitry controlling the display elements incorporated into the display.
    Type: Application
    Filed: June 19, 2013
    Publication date: December 25, 2014
    Inventors: Jianru Shi, Xiang-Dong Mi, Jignesh Gandhi
  • Publication number: 20140362092
    Abstract: This disclosure provides systems, methods and apparatus for reducing hotspots in backlit displays. Hotspot artifacts in multi-color backlit displays can be reduced by incorporating optical structures along the edges of light guides incorporated into the backlights. The optical structures are positioned adjacent to light emitting modules that emit light into the light guide. Light emitted from the light emitting modules passes through the optical structures before entering the light guide. Hotspot size can be reduced by appropriately configuring the shapes and sizes of these optical structures. In some implementations, the optical structures may include serrations along the side of the light guide adjacent to the light sources. In some other implementations, the optical structures may include dimples. Size of hotspots may also be reduced by reducing the distance between adjacent light sources of the same color.
    Type: Application
    Filed: June 7, 2013
    Publication date: December 11, 2014
    Inventors: Xiang-Dong Mi, Jignesh Gandhi, Jianru Shi
  • Patent number: 8891152
    Abstract: This methods and devices described herein relate to displays and methods of manufacturing cold seal fluid-filled displays, including MEMS. The fluid substantially surrounds the moving components of the MEMS display to reduce the effects of stiction and to improve the optical and electromechanical performance of the display. The invention relates to a method for sealing a MEMS display at a lower temperature such that a vapor bubble does not form only at temperatures about 15° C. to about 20° C. below the seal temperature. In some embodiments, the MEMS display apparatus includes a first substrate, a second substrate separated from the first substrate by a gap and supporting an array of light modulators, a fluid substantially filling the gap, a plurality of spacers within the gap, and a sealing material joining the first substrate to the second substrate.
    Type: Grant
    Filed: August 12, 2013
    Date of Patent: November 18, 2014
    Assignee: Pixtronix, Inc.
    Inventors: Eugene E. Fike, III, Joyce H. Wu, Jasper Lodewyk Steyn, Jignesh Gandhi
  • Publication number: 20140327948
    Abstract: This, disclosure provides systems, methods and apparatus for improving the angular light distribution of a display apparatus. Smaller shutter-based display apparatus that modulate light passing through at least two apertures in an aperture or light blocking layer can provide similar viewing angle characteristics as larger shutter-based modulators by disproportionately reducing the width of a subset of the at least two apertures in relation to the remainder of the apertures. As the width of such apertures is one of the primary determinants of viewing angle, allowing a greater percentage of the light throughput of a shutter assembly to pass through wider apertures helps maintain a wider viewing angle for the display.
    Type: Application
    Filed: May 6, 2013
    Publication date: November 6, 2014
    Applicant: Pixtronix, Inc.
    Inventors: Jianru Shi, Xiang-Dong Mi, Jignesh Gandhi
  • Publication number: 20140210802
    Abstract: Systems, apparatus, and methods are disclosed herein for adjusting the operation of a display based on ambient lighting conditions. One such apparatus includes a sensor input for receiving sensor data indicative of an ambient lighting condition, output logic and color gamut correction logic. The output logic is configured to simultaneously cause light sources of at least two colors to be illuminated to form each of at least three generated primary colors. The color gamut correction logic is configured to cause the output logic to adjust the output of at least one display light source for each of the at least three generated primary colors to change the saturation of each of the at least three generated primary colors based on the received ambient light sensor data.
    Type: Application
    Filed: January 29, 2013
    Publication date: July 31, 2014
    Applicant: Pixtronix, Inc.
    Inventors: Robert L. Myers, Jignesh Gandhi
  • Publication number: 20140168278
    Abstract: Displays having a plurality of shutter assemblies with movable shutters. Typically, the shutter assemblies are arranged in a grid of rows and columns, and the grid has a horizontal axis aligned with a horizontal axis of the display. The shutter assembly is aligned within the grid to have the axis of motion of respective shutters extend at an angle relative to the horizontal axis of the grid. In certain implementations, the shutter assemblies have a rectangular peripheral edge, and are arranged in the grid to have the square peripheral edge disposed at an angle relative to the horizontal axis of the grid. This can arrange the shutter assemblies into a diamond layout within the grid and place the shutter assemblies of adjacent columns into spatially offset rows of the grid. In some implementations, this increases the pixels per inch of the display, in other implementations, increases the aperture ratio.
    Type: Application
    Filed: December 13, 2012
    Publication date: June 19, 2014
    Applicant: PIXTRONIX, INC.
    Inventors: Jianru Shi, Edward Buckley, Jignesh Gandhi
  • Publication number: 20140168235
    Abstract: This disclosure provides systems, methods and apparatus for reducing undesired capacitance and electrostatic attraction among components of electromechanical systems (EMS) displays. An apparatus includes an array of display elements, a control matrix, and an electric insulation layer. The display elements each include a movable light blocking component coupled to a conductive beam.
    Type: Application
    Filed: December 18, 2012
    Publication date: June 19, 2014
    Applicant: Pixtronix, Inc.
    Inventors: Jignesh Gandhi, Stephen R. Lewis, Timothy J. Brosnihan
  • Publication number: 20140118388
    Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for displaying images using a frame-specific contributing color (FSCC). In one aspect, an input is configured to receive image data corresponding to a current image frame. Contributing color selection logic is configured, based on received image data, to obtain a FSCC for use in conjunction with a set of frame-independent contributing colors (FICCs) to generate the current image frame on a display. In addition, subframe generation logic is configured to process the received image data for the current image frame to generate at least two subframes for each of the FICCs and the obtained FSCC such that an output by the display of the generated subframes results in the display of the current image frame.
    Type: Application
    Filed: October 30, 2012
    Publication date: May 1, 2014
    Applicant: Pixtronix, Inc.
    Inventors: Edward Buckley, Fahri Yaras, Jignesh Gandhi
  • Publication number: 20140043370
    Abstract: An apparatus for displaying three-dimensional (3D) images includes an array of display elements and a controller. The controller can control a set of display elements in the array to form, at a first time, a first eye image corresponding to input data by causing the light modulators to be driven into a first set of positions. The first eye image includes an angular distribution of light weighted towards a first side of the display. The controller also can control the same set of display elements to form, at a second time, a second eye image corresponding to input data by causing the light modulators to be driven into a second set of positions. The second eye image includes an angular distribution of light weighted towards an opposite side of the display.
    Type: Application
    Filed: August 10, 2012
    Publication date: February 13, 2014
    Inventors: Richard S. Payne, Jignesh Gandhi, Jianru Shi
  • Publication number: 20130343086
    Abstract: Light guides and backlight systems are disclosed that include one or more groups of geometric light redirectors whose arrangement and/or orientation across the surface of a light guide varies to improve light emission uniformity and to reduce visual artifacts.
    Type: Application
    Filed: August 28, 2013
    Publication date: December 26, 2013
    Applicant: Pixtronix, Inc.
    Inventors: Jehong Kim, Jignesh Gandhi
  • Publication number: 20130330995
    Abstract: This methods and devices described herein relate to displays and methods of manufacturing cold seal fluid-filled displays, including MEMS. The fluid substantially surrounds the moving components of the MEMS display to reduce the effects of stiction and to improve the optical and electromechanical performance of the display. The invention relates to a method for sealing a MEMS display at a lower temperature such that a vapor bubble does not form forms only at temperatures about 15° C. to about 20° C. below the seal temperature. In some embodiments, the MEMS display apparatus includes a first substrate, a second substrate separated from the first substrate by a gap and supporting an array of light modulators, a fluid substantially filling the gap, a plurality of spacers within the gap, and a sealing material joining the first substrate to the second substrate.
    Type: Application
    Filed: August 12, 2013
    Publication date: December 12, 2013
    Applicant: PIXTRONIX, INC.
    Inventors: Eugene E. Fike, III, Joyce H. Wu, Jasper Lodewyk Steyn, Jignesh Gandhi