Patents by Inventor David Coleman

David Coleman 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: 8169699
    Abstract: Polarization preserving projection screens provide optimum polarization preservation for 3D viewing. The projection screens additionally provide improved light control for enhanced brightness, uniformity, and contrast for both 2D and 3D systems. Generally, the disclosed method for providing a projection screen comprises stripping an optically functional material from a carrier substrate, thus creating engineered particles from the optically functional material. The engineered particles may then be deposited on a second substrate to create a substantially homogeneous optical appearance of the projection screen.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: May 1, 2012
    Assignee: RealD Inc.
    Inventors: Joel Petersen, Christopher Rich, Raymond Jacob Lewandowski, Gary D. Sharp, David Coleman
  • Publication number: 20120086907
    Abstract: Curved polarization filters and methods of manufacturing thereof. One method includes laminating a planar polarization layer to a planar retarder layer at a predetermined orientation and bending the laminate to create a curved filter. The strain on the retarder layer results in stress-induced birefringence, and the predetermined orientation of the retarder substantially compensates for the stress-induced birefringence.
    Type: Application
    Filed: December 20, 2011
    Publication date: April 12, 2012
    Applicant: RealD, INC.
    Inventors: DAVID A. COLEMAN, Gary D. Sharp
  • Publication number: 20120081782
    Abstract: A method for providing a projection screen for receiving stereoscopic images may include providing a substrate with a contoured, reflective surface, wherein light reflected from the substrate substantially may undergo no more than a single reflection and may also include coating a first layer on the substrate with a contoured, reflective surface. The first layer may substantially maintain the same optical properties as the substrate without the first layer. The first layer may be substantially conformal to the surface of the substrate and also may be a self assembled monolayer coating which may include at least a functional group that is hydrophobic.
    Type: Application
    Filed: September 30, 2011
    Publication date: April 5, 2012
    Applicant: REALD INC.
    Inventors: David A. Coleman, Gary D. Sharp
  • Publication number: 20120057842
    Abstract: A desktop application and supporting web site for recording voice-over or music sessions is introduced, wherein multiple participants in a collaborative session may be in separate remote locations. The application includes providing a high quality data format for transferring audiovisual data, recordings and the like, and a lower-quality, real-time data format for intercommunicating verbal instructions that relate to, but are not part of, the recording session. Peer-to-peer and server-client implementations may be optimized regarding delivery time versus take quality. The desktop application also provides mechanisms for playing back sound and video for participants' reference during a recording, delivering high quality data format take files to a remote network location or computer, along with synchronized presentations of textual, audio and visual material corresponding to the session.
    Type: Application
    Filed: August 29, 2011
    Publication date: March 8, 2012
    Inventors: Dan Caligor, DAVID COLEMAN
  • Patent number: 8072681
    Abstract: Polarization preserving front projection screens and diffusers provide optimum polarization preservation for stereoscopic 3D viewing, as well as improved light control for enhanced brightness, uniformity, and contrast for both 2D and 3D systems. Generally, the disclosed screens direct light from a projector toward viewers within a diffusion locus, while maintaining optimum gain characteristics. More specifically, light incident on a region of the front projection screen from a predetermined projection direction is reflected by an engineered surface to a predetermined diffusion locus after undergoing substantially single reflections. The engineered surface, comprised of generating kernels, is used to optimally diffuse illumination light into a range of viewing angles, within the diffusion locus, with suitable gain profile, while optimally preserving polarization for 3D applications.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: December 6, 2011
    Assignee: RealD Inc.
    Inventors: David A. Coleman, Gary D. Sharp
  • Patent number: 8024265
    Abstract: A system for verifying loan data for a loan being delivered by a seller to a purchaser includes underwriting logic that generates a set of underwriting data for a loan and delivery logic that receives a set of delivery data for the loan from the seller and processes the delivery data. The delivery logic includes comparison logic that compares the underwriting data for the loan and the delivery data for the loan to determine any differences. If there are differences between the underwriting data and the delivery data for the loan, yield adjustments and fees may be determined for the loan based on the differences.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: September 20, 2011
    Assignee: Fannie Mae
    Inventors: John L. Kemper, David A. Coleman
  • Publication number: 20110205495
    Abstract: Three dimensional projection systems may be single projector or multiple projector systems. These 3D projection systems may include a polarization conversion system (PCS). The PCS may be designed for relatively small throw ratios and thus, may be designed to accommodate the small throw ratios. The PCS may include a polarizing beam splitter, a first optical stack, a reflector and a second quarter wave retarder. The first optical stack may include a rotator, a polarizer, a polarization switch and a first quarter wave retarder. The PCS may receive light from a projector and the PBS may direct the light toward the first optical stack. The light may be converted to a different polarization state as it passes through the first optical stack. The converted light may then be re-directed by a reflecting element to the second quarter wave retarder. The second quarter wave retarder may convert linearly polarized light to circularly polarized light.
    Type: Application
    Filed: February 24, 2011
    Publication date: August 25, 2011
    Applicant: REALD INC.
    Inventors: David A. Coleman, Miller H. Schuck, Gary D. Sharp, Scott E. Gilman
  • Patent number: 8004758
    Abstract: Polarization preserving front projection screens and diffusers provide optimum polarization preservation for stereoscopic 3D viewing, as well as improved light control for enhanced brightness, uniformity, and contrast for both 2D and 3D systems. Generally, the disclosed screens direct light from a projector toward viewers within a diffusion locus, while maintaining optimum gain characteristics. More specifically, light incident on a region of the front projection screen from a predetermined projection direction is reflected by an engineered surface to a predetermined diffusion locus after undergoing substantially single reflections. The engineered surface, comprised of generating kernels, is used to optimally diffuse illumination light into a range of viewing angles, within the diffusion locus, with suitable gain profile, while optimally preserving polarization for 3D applications.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: August 23, 2011
    Assignee: RealD Inc.
    Inventors: David A. Coleman, Gary D. Sharp
  • Publication number: 20110188115
    Abstract: Stereoscopic eyewear with compound curvature may be employed to view three dimensional content. The manufacture of such eyewear may be achieved by thermoforming a first material and by thermoforming a second material. The first and second materials may be in roll stock form prior to thermoforming, and the first layer may be polarizer material, while the second layer may be retarder material. Each of the first and second materials may be thermoformed by employing optimized thermoforming conditions for each of the two materials. Additionally, the two thermoforming lines may be timed so that the curved shapes of the first material in roll stock form may be substantially synchronized with the curved shapes of the second material in roll stock form, which may allow the curved shapes of each of the first and second materials in roll stock form may be joined together.
    Type: Application
    Filed: February 1, 2011
    Publication date: August 4, 2011
    Applicant: REALD INC.
    Inventors: Gary D. Sharp, David A. Coleman
  • Publication number: 20110149390
    Abstract: Polarization preserving projection screens provide optimum polarization preservation for 3D viewing. The projection screens additionally provide improved light control for enhanced brightness, uniformity, and contrast for both 2D and 3D systems. Generally, the disclosed method for providing a projection screen comprises stripping an optically functional material from a carrier substrate, thus creating engineered particles from the optically functional material. The engineered particles may then be deposited on a second substrate to create a substantially homogeneous optical appearance of the projection screen.
    Type: Application
    Filed: December 22, 2010
    Publication date: June 23, 2011
    Inventors: Joel Petersen, Christopher Rich, Raymond Jacob Lewandowski, Gary D. Sharp, David Coleman
  • Publication number: 20110149389
    Abstract: Polarization preserving projection screens provide optimum polarization preservation for 3D viewing. The projection screens additionally provide improved light control for enhanced brightness, uniformity, and contrast for both 2D and 3D systems. Generally, the disclosed method for providing a projection screen comprises embossing at least a first side of a first substrate to produce an optically functional material and then cutting the optically functional material into pieces to produce a plurality of engineered particles. The plurality of engineered particles may then be deposited on a second substrate to produce a substantially homogeneous optical appearance of the projection screen.
    Type: Application
    Filed: December 22, 2010
    Publication date: June 23, 2011
    Applicants: REALD INC., WAVEFRONT TECHNOLOGY, INC.
    Inventors: Gary D. Sharp, David A. Coleman, Joel Petersen, Christopher Rich, Raymond Jacob Lewandowski
  • Publication number: 20110087018
    Abstract: A method for the preparation of a sucrose-6-ester is disclosed. In a first step of the method, sucrose in a polar aprotic solvent is reacted with an organotin-based acylation promoter. The water of reaction is removed at a temperature that does not exceed about 80° C. In one aspect, the water is removed by distillation of part of the polar aprotic solvent at reduced pressure. In a second step, a carboxylic acid anhydride is added. In one aspect, the resulting reaction mixture is maintained at a temperature of 10° C. or less for a period of time sufficient to produce a sucrose-6-ester. The sucrose-6-ester can be converted to sucralose.
    Type: Application
    Filed: October 11, 2010
    Publication date: April 14, 2011
    Applicant: Tate & Lyle Technology Limited
    Inventors: Edward Micinski, David Coleman, James Edwin Wiley, JR.
  • Publication number: 20110087019
    Abstract: A process for the production of sucrose-6-ester is disclosed. The process includes, in order, the steps of: (a) providing a first reaction mixture including sucrose, a reaction vehicle, and an organotin-based acylation promoter; (b) removing water from the first reaction mixture to afford a second reaction mixture that is substantially free from water; and (c) adding a carboxylic acid anhydride to the second reaction mixture to afford a third reaction mixture, thereby producing a sucrose-6-ester; wherein: during step (b), the removing of water includes distillation of water with the reaction vehicle using an apparatus supplying a heat flux of from 500 to 25,000 BTU/hrft2 (1577 to 78865 W/m2) selected from the group consisting of wiped film evaporators, agitated thin film evaporators, falling film evaporators and rising film evaporators.
    Type: Application
    Filed: October 11, 2010
    Publication date: April 14, 2011
    Applicant: Tate & Lyle Technology Limited
    Inventors: Edward Micinski, David Coleman
  • Patent number: 7898734
    Abstract: Polarization preserving front projection screens and diffusers provide optimum polarization preservation for stereoscopic 3D viewing, as well as improved light control for enhanced brightness, uniformity, and contrast for both 2D and 3D systems. Generally, the disclosed screens direct light from a projector toward viewers within a diffusion locus, while maintaining optimum gain characteristics. More specifically, light incident on a region of the front projection screen from a predetermined projection direction is reflected by an engineered surface to a predetermined diffusion locus after undergoing substantially single reflections. The engineered surface, comprised of generating kernels, is used to optimally diffuse illumination light into a range of viewing angles, within the diffusion locus, with suitable gain profile, while optimally preserving polarization for 3D applications.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: March 1, 2011
    Assignee: RealD Inc.
    Inventors: David A. Coleman, Gary D. Sharp
  • Publication number: 20100268641
    Abstract: A system for verifying loan data for a loan being delivered by a seller to a purchaser includes underwriting logic that generates a set of underwriting data for a loan and delivery logic that receives a set of delivery data for the loan from the seller and processes the delivery data. The delivery logic includes comparison logic that compares the underwriting data for the loan and the delivery data for the loan to determine any differences. If there are differences between the underwriting data and the delivery data for the loan, yield adjustments and fees may be determined for the loan based on the differences.
    Type: Application
    Filed: June 28, 2010
    Publication date: October 21, 2010
    Inventors: John L. Kemper, David A. Coleman
  • Publication number: 20100250628
    Abstract: An Identity Confidence Framework is a method for determining the confidence that each of various identity elements pertain to the same person.
    Type: Application
    Filed: March 2, 2010
    Publication date: September 30, 2010
    Applicant: FUSIONARC, INC.
    Inventors: Samir Nanavati, David Coleman, Rajkumar Nanavati
  • Publication number: 20100188746
    Abstract: Polarization preserving front projection screens and diffusers provide optimum polarization preservation for stereoscopic 3D viewing, as well as improved light control for enhanced brightness, uniformity, and contrast for both 2D and 3D systems. Generally, the disclosed screens direct light from a projector toward viewers within a diffusion locus, while maintaining optimum gain characteristics. More specifically, light incident on a region of the front projection screen from a predetermined projection direction is reflected by an engineered surface to a predetermined diffusion locus after undergoing substantially single reflections. The engineered surface, comprised of generating kernels, is used to optimally diffuse illumination light into a range of viewing angles, within the diffusion locus, with suitable gain profile, while optimally preserving polarization for 3D applications.
    Type: Application
    Filed: August 10, 2009
    Publication date: July 29, 2010
    Applicant: Real D
    Inventors: David A. Coleman, Gary D. Sharp
  • Patent number: 7747519
    Abstract: A system for verifying loan data for a loan being delivered by a seller to a purchaser includes underwriting logic that generates a set of underwriting data for a loan and delivery logic that receives a set of delivery data for the loan from the seller and processes the delivery data. The delivery logic includes comparison logic that compares the underwriting data for the loan and the delivery data for the loan to determine any differences. If there are differences between the underwriting data and the delivery data for the loan, yield adjustments and fees may be determined for the loan based on the differences.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: June 29, 2010
    Assignee: Fannie Mae
    Inventors: John L. Kemper, David A. Coleman
  • Publication number: 20100061538
    Abstract: A conference call system comprising at least a gateway, a conference reservation agent and a multiport conference unit, can establish conference calls by calling conference call participants at a phone number specified by the conference call participants. When a user initiates a conference, an identifier is assigned to the conference and a URL referencing this identifier is transmitted to each conference participant. Upon clicking the URL, conference participants are presented with a web-form within which the participants can entered a preferred phone number and further join the conference. The multiport conference unit receives each participant phone number and calls the participants at that phone number. Upon establishing a telecommunication connection with each participant, the multiport conference unit bridges the multiple call legs to establish the conference call.
    Type: Application
    Filed: September 9, 2009
    Publication date: March 11, 2010
    Inventors: David Coleman, Andrey Kovalenko, Ed Navarrete, Amitabh Sinha
  • Publication number: 20090297797
    Abstract: Polarization preserving front projection screens and diffusers provide optimum polarization preservation for stereoscopic 3D viewing, as well as improved light control for enhanced brightness, uniformity, and contrast for both 2D and 3D systems. Generally, the disclosed screens direct light from a projector toward viewers within a diffusion locus, while maintaining optimum gain characteristics. More specifically, light incident on a region of the front projection screen from a predetermined projection direction is reflected by an engineered surface to a predetermined diffusion locus after undergoing substantially single reflections. The engineered surface, comprised of generating kernels, is used to optimally diffuse illumination light into a range of viewing angles, within the diffusion locus, with suitable gain profile, while optimally preserving polarization for 3D applications.
    Type: Application
    Filed: August 10, 2009
    Publication date: December 3, 2009
    Applicant: REAL D
    Inventors: David A. Coleman, Gary D. Sharp