Patents Represented by Attorney Charles A. Brill
  • Patent number: 8259382
    Abstract: A method of projecting images uses an array of pixels having curved reflective surfaces.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: September 4, 2012
    Assignee: Texas Instruments Incorporated
    Inventor: David Joseph Mehrl
  • Patent number: 8253755
    Abstract: System and method for image-based color sequence reallocation in sequential color display systems. A method comprises generating a color signal from an image to be displayed, wherein the color signal contains light intensity information, computing percentages of the color sequence to be allocated to each color in a set of colors in a sequential color display system, wherein the computing is based on the light intensity information, allocating the color sequence based on the computed percentages, and displaying the image using the color sequence. The allocation of the color sequence based on the image allows for the elimination of color intensities that are greater than needed in displaying the image. Portions of the color sequence formerly used to display the eliminated color intensities may be used to display colors with usable intensities, thereby increasing the brightness of images.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: August 28, 2012
    Assignee: Texas Instruments Incorporated
    Inventors: Andrew Ian Russell, David Foster Lieb, Jeffrey Matthew Kempf
  • Patent number: 8253844
    Abstract: A system and method for exposing different parts of a single field of view for various and differing lengths of time while capturing an image is provided. For astrophotography, unwanted light pollution or over-saturation bleeding from nearby or obtrusive stars may be greatly reduced or eliminated while still capturing the image of the nearby brighter star in the same field of view. Also, a system and method for real-time contrast control while capturing an image to optimize signal-to-noise ratio for various parts of the captured image, is provided. An embodiment of the present invention provides such techniques by using spatial light modulator devices, such as a digital micro-mirror device, to controllably mask different portions of light from an image that expose film or a charge-coupled device. A system and method for a way to use a spatial light modulator device as an active and controllable mask for photolithography, is provided.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: August 28, 2012
    Assignee: Texas Instruments Incorporated
    Inventor: Jason Michael Neidrich
  • Patent number: 8202433
    Abstract: In one embodiment, an apparatus for reducing adherence in a micro-electromechanical system (MEMS) device comprises a substrate. A MEMS is disposed outwardly from the substrate. The MEMS comprises structures and corresponding landing pads. Dibs are disposed outwardly from the substrate. Each dib has a surface with depressions. An adherence-reducing material is disposed within each depression. The adherence-reducing material reduces adherence between at least a portion of a structure and a corresponding landing pad.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: June 19, 2012
    Assignee: Texas Instruments Incorporated
    Inventor: Walter M. Duncan
  • Patent number: 8153353
    Abstract: A method and a material for creating an antireflective coating on an integrated circuit. A preferred embodiment comprises applying a dark polymer material on a reflective surface, curing the dark polymer material, and roughening a top surface of the dark polymer material. The roughening can be achieved by ashing the dark polymer material in an ash chamber. The dark polymer material, preferably a black matrix resin or a polyimide black matrix resin, when ashed in an oxygen rich atmosphere for a short period of time, forms a surface that is capable of absorbing light as well as randomly refracting light it does not absorb. A protective cap layer may be formed on top of the ashed dark polymer material to provide protection for the dark polymer material.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: April 10, 2012
    Assignee: Texas Instruments Incorporated
    Inventor: Jason Michael Neidrich
  • Patent number: 8139851
    Abstract: In accordance with the teachings of the present invention, a system and method for local value adjustment are provided. In one embodiment, the method includes identifying a hue, saturation, and brightness value for each pixel of an image, determining whether the hue and saturation for each pixel fall within a first predetermined set of hue and saturation combinations, determining whether the brightness value for each pixel of the image falls within a predetermined set of brightness values, and selectively applying a gain to the saturation of each pixel based upon the determination of whether the hue and saturation value of the pixel falls within the first predetermined set of hue and saturation combinations and the determination of whether the brightness value of the pixel falls within the predetermined set of brightness values.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: March 20, 2012
    Assignee: Texas Instruments Incorporated
    Inventors: Jeffrey M. Kempf, David C. Hutchison, Roger M. Ikeda
  • Patent number: 8138588
    Abstract: A package frame for use in packaging microelectromechanical devices and/or spatial light modulators comprises a frame, a stiffener, and a heat dissipater.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: March 20, 2012
    Assignee: Texas Instruments Incorporated
    Inventor: Bradley Morgan Haskett
  • Patent number: 8111330
    Abstract: A method and apparatus for an analog-to-digital video signal converter. The converter is controlled by a clock with controllable frequency and phase for sampling an analog signal. A circuit corrects the clock frequency using a period of a columnar frame differences as a function of columnar location. The sampling clock frequency is changed by an amount dependent on the period of the columnar differences. A second measure of the difference between successive frames is computed for a sequence of clock phases. The frequency of the clock is verified using a characteristic of the second measure. The characteristic can be the ratio of the maximum to the minimum of the second measure over selected clock phases. Other characteristics can be used such as a difference of a maximum and a minimum measure.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: February 7, 2012
    Assignee: Texas Instruments Incorporated
    Inventors: Bing Ouyang, John Michael Hayden, Troy Lane Ethridge, Anuradha Sundararajan, Larry D. Dickinson
  • Patent number: 8094234
    Abstract: System and method for multistage frame rate conversion. A method comprises receiving an incoming frame at a first frame rate, and determining whether a fault condition exists. The method also includes if the fault condition does not exist, toggling a write buffer pointer from a first frame buffer to a second frame buffer, and storing the incoming frame in the second frame buffer. The method additionally includes if the fault condition exists, determining whether a previously received frame was repeated, discarding the incoming frame if the previously received incoming frame was not repeated, and storing the incoming frame in one of the frame buffers pointed to by the write buffer pointer if the previously received incoming frame was repeated.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: January 10, 2012
    Assignee: Texas Instruments Incorporated
    Inventor: Marshall Charles Capps
  • Patent number: 8068267
    Abstract: Speckle effect in display system is reduced by utilizing the instability of phase-coherent light and the transmission of the instable phase-coherent light through a multi-mode optical fiber with a suitable length.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: November 29, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: Regis Grasser, Hongqin Shi, Terry A. Bartlett
  • Patent number: 8063911
    Abstract: A system and method for gamut mapping out-of-gamut signals. A method includes adjusting each color in a color signal, determining a maximum color value of the color signal, in response to a determining that the maximum color value exceeds a maximum displayable color value, scaling color values of colors not having the maximum color value, and setting the color value of the color having the maximum color value to be equal to the maximum displayable color value. The method further includes leaving the color values of the colors in the color signal unchanged in response to a determining that the maximum color value does not exceed the maximum displayable color value. The scaling of color values not equal to the maximum color value results in a maintaining of a proper hue of the color signal, thereby not introducing color artifacts and other forms of color noise.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: November 22, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: Rajeev Ramanath, Larry Layne Jenkins
  • Patent number: 8059340
    Abstract: Provided is a method and system for reducing speckle in an image produced from a light source. The method, in one embodiment, includes providing a line generating element, the line generating element having a collection of optical elements having an axis. The method, in this embodiment, further includes directing an input beam of light at the line generating element while the line generating element is being vibrated back and forth in a direction substantially transverse to the axis.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: November 15, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: Sajjad A. Khan, Steven Paul Krycho
  • Patent number: 8059323
    Abstract: A stabilizer mechanism is coupled to a deformable element of a microelectromechanical device for reducing unwanted deformation of the deformable element by increasing the stiffness of the deformable element in selected other directions than the direction along which desired deformation is performed.
    Type: Grant
    Filed: December 27, 2008
    Date of Patent: November 15, 2011
    Assignee: Texas Instruments Incorporated
    Inventor: Larry Joseph Hornbeck
  • Patent number: 8054529
    Abstract: System and method for simultaneous display of multiple images using a single light modulator array. A preferred embodiment comprises a light source that produces a light with desired spectral characteristics, a color filter optically coupled to the light source, and an array of light modulators optically coupled to the color filter. The color filter filters light from the light source to produce light of desired wavelengths and the array of light modulators simultaneously displays multiple images onto a display plane. Portions of the array of light modulators are designed so that each portion can independently display an image and the light source provides needed light to display the image.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: November 8, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: David Joseph Mehrl, James N. Malina
  • Patent number: 8052286
    Abstract: A method includes generating a plurality of beams that each illuminate a separate portion of a spatial light modulator. The spatial light modulator has a first dimension of a first length and a second dimension of a second length. Each of the beams spans a portion of the first length of the first dimension and a portion of the second length of the second dimension. The method also includes scrolling the plurality of beams along the second dimension of the spatial light modulator while maintaining at least a first gap between each of the plurality of beams.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: November 8, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: Philip Scott King, Gregory James Hewlett, Roger Mitsuo Ikeda, Jeffrey Scott Farris
  • Patent number: 8047660
    Abstract: A method and apparatus for a projection display system includes a spatial light modulator and a volume illumination hologram. The spatial light modulator comprises a digital micromirror device, and the projection system includes a laser light source to produce a sequence of collimated, colored, light beams for the illumination hologram. Waste light produced by the spatial light modulator is transmitted to the illumination hologram, and the illumination hologram emits waste light from at least one of its edges. Waste light emitted from an edge of the illumination hologram is absorbed by a light sensor to control the intensity of the light beams. A projection focusing element is mounted proximate a side of the illumination hologram to focus the image beam from the spatial light modulator for viewing. A projection hologram is interposed between the side of the illumination hologram and the projection focusing element to manage waste light.
    Type: Grant
    Filed: January 13, 2010
    Date of Patent: November 1, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: Steven Monroe Penn, Duane Scott Dewald, Ronald Allen Barry
  • Patent number: 8049946
    Abstract: A method of lubricating MEMS devices using fluorosurfactants 42. Micro-machined devices, such as a digital micro-mirror device (DMD™) 940, which make repeated contact between moving parts, require lubrication in order to prevent the onset of stiction (static friction) forces significant enough to cause the parts to stick irreversibly together, causing defects. These robust and non-corrosive fluorosurfactants 42, which consists of a hydrophilic chain 40 attached to a hydrophobic fluorocarbon tail 41, are applied by nebulization and replace the more complex lubricating systems, including highly reactive PFDA lubricants stored in polymer getters, to keep the parts from sticking. This lubrication process, which does not require the use of getters, is easily applied and has been shown to provide long-life, lower-cost, operable MEMS devices.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: November 1, 2011
    Assignee: Texas Instruments Incorporated
    Inventor: Seth Miller
  • Patent number: 8042248
    Abstract: Disclosed embodiments demonstrate batch processing methods for producing optical windows for micro-devices. The windows protect the active elements of the micro-device from contaminants, while allowing light to pass into and out of the hermetically sealed micro-device package. Windows may be batch produced, reducing the cost of production, by fusing multiple metal frames to a single sheet of glass. In order to allow windows to be welded atop packages, disclosed embodiments keep a lip of metal without any glass after the metal frames are fused to the sheet of glass. Several techniques may accomplish this goal, including grinding grooves in the glass to provide a gap that prevents fusion of the glass to the metal frames along the outside edges in order to form a lip. The disclosed batch processing techniques may allow for more efficient window production, taking advantage of the economy of scale.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: October 25, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: Wei-Yan Shih, Bradley M. Haskett
  • Patent number: 8040305
    Abstract: A display system 100 includes a light source 110 and a color wheel 114. An optical section 112 is arranged to receive light from the light source 110 and to direct the light toward a color wheel 114. A digital micromirror device 122 is arranged to receive the light from the color wheel 114 and to direct image data toward a display. The image data includes an array of pixels arranged in rows and columns. The array of pixels is arranged as curved color bands during a first time period and rectangular color bands during a second time period. The second time period being concurrent with but of a shorter duration than the first time period.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: October 18, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: Daniel J. Morgan, Donald B. Doherty, William J. Sexton
  • Patent number: 8031265
    Abstract: System and method for combining interlaced video frames. A method embodiment for displaying a de-interlaced video sequence includes receiving a video stream, decoding the video stream to produce a sequence of interlaced video fields, creating a first de-interlaced video frame by combining at least two interlaced video fields, determining a cadence of the first de-interlaced video frame, and outputting the first de-interlaced video frame in a next de-interlaced video frame display time slot if the first de-interlaced video frame has proper cadence, while if the de-interlaced video frame has a broken cadence, re-outputting a previously outputted de-interlaced video frame in the next de-interlaced video frame display time slot. A feed-forward control signal may be used to determine which de-interlaced video frame to output and helps to minimize latency as well as storage requirements.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: October 4, 2011
    Assignee: Texas Instruments Incorporated
    Inventor: Marshall Charles Capps