Source: http://www.google.com/patents/US8169467?dq=6,272,646
Timestamp: 2013-12-12 00:43:03
Document Index: 77203020

Matched Legal Cases: ['Application No. 2009', 'Application No. 07754251', 'Application No. 07754251', 'Application No. 10', 'Application No. 200780001629', 'Application No. 10', 'Application No. 10', 'Application No. 2009', 'Application No. 2009', 'Application No. 2', 'Application No. 201010522450', 'Application No. 200780001629', 'Application No. 096111054']

Patent US8169467 - System, method, and computer program product for increasing an LCD display ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Advanced Patent Search | Sign inAdvanced Patent SearchPatentsA system, method, and computer program product are provided for enhancing a viewing experience when display content is viewed utilizing stereo glasses. In use, display content is received for being outputted utilizing a display. Further, a duration of a vertical blanking interval associated with the...http://www.google.com/patents/US8169467?utm_source=gb-gplus-sharePatent US8169467 - System, method, and computer program product for increasing an LCD display vertical blanking intervalPublication numberUS8169467 B2Publication typeGrantApplication numberUS 11/462,535Publication dateMay 1, 2012Filing dateAug 4, 2006Priority dateMar 29, 2006Also published asUS20070229487, US20120075437Publication number11462535, 462535, US 8169467 B2, US 8169467B2, US-B2-8169467, US8169467 B2, US8169467B2InventorsGerrit A. Slavenburg, Thomas F. Fox, David Robert CookOriginal AssigneeNvidia CorporationExport CitationBiBTeX, EndNote, RefManPatent Citations (40), Non-Patent Citations (29), Referenced by (1), Classifications (27), Legal Events (1) External Links: USPTO, USPTO Assignment, EspacenetSystem, method, and computer program product for increasing an LCD display vertical blanking intervalUS 8169467 B2Abstract A system, method, and computer program product are provided for enhancing a viewing experience when display content is viewed utilizing stereo glasses. In use, display content is received for being outputted utilizing a display. Further, a duration of a vertical blanking interval associated with the display content is increased for enhancing a viewing experience when the display content is viewed utilizing the stereo glasses.
RELATED APPLICATION(S) The present application claims priority of a provisional application filed Mar. 29, 2006 under application Ser. No. 60/787,730, which is incorporated herein by reference in its entirety.
FIELD OF THE INVENTION The present invention relates to video displays, and more particularly to displaying stereo video and/or graphics images utilizing video displays.
BACKGROUND Various display devices are equipped for both mono and stereo viewing. Unlike mono viewing, stereo viewing involves the display of separate content for the right and left human eye. Specifically, such stereo viewing requires the presentation of a separate image to the left and right human eye. In one particular type of stereo viewing, namely time sequential stereo, such left and right images are presented in an alternating manner. To ensure a proper stereo viewing experience, alternating shutter glasses are also typically used which make the left image visible to the left eye and the right image to the right eye at the appropriate time.
In the past, time sequential stereo viewing has worked well on CRTs and related displays [e.g. high frame rate (DLP) projectors, etc.]. However, time sequential stereo viewing has not shown promise with liquid crystal displays (LCDs), whether flat-panel or in the form of a projector, due to several issues. For example, a slow response time of pixels in LCD environments causes �ghosting� of the left image in the right view, and visa versa. Still yet, the nature of the LCD update process unfortunately results in only short periods of time when the right image and left image may be present in their entirety, as will now be described in more detail.
Unlike CRTs and other related displays, LCD pixels have individual capacitive storage elements that cause each pixel to retain its color and intensity until it is updated by LCD driver-related electronics, which addresses pixels in raster order. Thus, at time T1, when part of the first right image R1 has been sent, the actual image emitted from the LCD screen includes the �not yet overwritten� (e.g. red) part of first left image L1 at the bottom, and the newly written (e.g. green) part of the first right image R1. Further, at T2, and, in fact, for the entire vertical blanking interval VBI starting at time T2, the display includes only the first right image R1. At time T3, the first right image R1 has been partially overwritten by a second left image L2, in the manner shown. To this end, if the display content at time T1 and T3 were shown to the left or right eye, such eye would unfortunately receive content, at least in part, not intended for such eye.
SUMMARY A system, method, and computer program product are provided for enhancing a viewing experience when display content is viewed utilizing stereo glasses. In use, display content is received for being outputted utilizing a display. Further, a duration of a vertical blanking interval associated with the display content is increased for enhancing a viewing experience when the display content is viewed utilizing the stereo glasses.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A illustrates hypothetical shortcomings that would exist if stereo viewing were attempted utilizing a liquid crystal display (LCD).
DETAILED DESCRIPTION FIG. 1 illustrates an exemplary computer system 100 in which the various architecture and/or functionality of different embodiments may be implemented. As shown, a computer system 100 is provided including at least one host processor 101 which is connected to a communication bus 102. The computer system 100 also includes a main memory 104. Control logic (software) and data are stored in the main memory 104 which may take the form of random access memory (RAM).
f pix=(pixels� X-direction+HBI)*(pixels� Y-direction+VBI)*f v Equation #1
Thus, in one embodiment, the foregoing timing of Table 1 may provide an alternate 1280�1024 75 Hz stereo compatible timing specification that may co-exist with existing VESA 1280�1024 75 Hz timing specifications. In such exemplary embodiment, the existing 1280�1024 75 Hz VESA timing employs 24.2% of available time for horizontal blanking and 3.9% for vertical blanking, whereas the stereo compatible timing employs close to 27% of available time for vertical blanking and less than 4% for horizontal blanking.
Specifically, in one optional embodiment, a display may be provided that is designed for a 1600�1200 resolution, but is used at a lower resolution such as 1024�768. If such display supports the 1600�1200 resolution at 60 Hz (in accordance with the VESA standard), it is likely capable of 162 Mpix/s (in any resolution). Thus, by sending the display 1024*768 pixels with a 162 MHz pixel clock, an entire image (assuming 100 pixel horizontal blanking) may be sent in 5.33 ms (1144*768*6.173e-9). Since images at 60 Hz are received every 16.66 msec, the vertical blanking interval may thus be extended to 11.33 msec (16.66−5.33). To this end, each shutter of a pair of stereo glasses (e.g. stereo glasses 111 of FIG. 1, etc.) may remain in an open orientation for 11.33 msec out of every 33.33 msec, thereby providing a duty cycle of 34% (out of a theoretical maximum of 50%).
In another embodiment, the method 300 of FIG. 3 and the method 400 of FIG. 4 may be provided by interrupting two 12C� interface wires that typically carry EDID standard information. In an embodiment where the controller takes the form of a microcontroller, such hardware may read original display EDID information and present modified EDID information to the associated computer system. In such embodiment, drivers that use the EDID information to compute timing settings need not necessarily be modified.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS4912557 *May 16, 1988Mar 27, 1990Faroudja Y CControl method for television ghost reduction systemUS5486868 *May 19, 1995Jan 23, 1996Winbond Electronics CorporationGenerator for scan timing of multiple industrial standardsUS5796373Oct 10, 1996Aug 18, 1998Artificial Parallax Electronics Corp.Computerized stereoscopic image system and method of using two-dimensional image for providing a view having visual depthUS5878216 *May 1, 1995Mar 2, 1999Intergraph CorporationSystem and method for controlling a slave processorUS5943504 *Apr 14, 1997Aug 24, 1999International Business Machines CorporationSystem for transferring pixel data from a digitizer to a host memory using scatter/gather DMAUS6529175Jan 25, 2001Mar 4, 2003Vrex, Inc.Stereoscopic LCD shutter glass driver systemUS6532008Mar 13, 2000Mar 11, 2003Recherches Point Lab Inc.Method and apparatus for eliminating steroscopic cross imagesUS6977629 *Jun 20, 2002Dec 20, 2005Thomson LicensingStereoscopic picture separation for phosphor lag reduction in PDPUS7061477Oct 24, 2000Jun 13, 2006Sony CorporationProjection display apparatus and systemUS7215356Oct 5, 2004May 8, 2007Wintek Corporation3D stereo display method and a device thereofUS7256791 *Dec 18, 2001Aug 14, 2007Lightspace Technologies, Inc.Rasterization of three dimensional imagesUS7385625Dec 11, 2003Jun 10, 2008Fujifilm CorporationImage photography apparatus, image reproducing apparatus, image photography and reproducing apparatus, stereographic projector, jig for image stereoscopic vision, and printerUS7490296Apr 30, 2003Feb 10, 2009Microsoft CorporationUtility object for specialized data entryUS7502010Jan 27, 2005Mar 10, 2009Nvidia CorporationVariable brightness LCD backlightUS7724211Aug 4, 2006May 25, 2010Nvidia CorporationSystem, method, and computer program product for controlling stereo glasses shuttersUS20020007723 *Mar 19, 2001Jan 24, 2002Ludwig Lester F.Processing and generation of control signals for real-time control of music signal processing, mixing, video, and lightingUS20020196199Jun 20, 2002Dec 26, 2002Sebastien WeitbruchStereoscopic picture separation for phosphor lag reduction in PDPUS20030038807 *Aug 22, 2002Feb 27, 2003Demos Gary AlfredMethod and apparatus for providing computer-compatible fully synchronized audio/video informationUS20040130645Dec 11, 2003Jul 8, 2004Fuji Photo Film Co., Ltd.Image photography apparatus, image reproducing apparatus, image photography and reproducing apparatus, stereographic projector, jig for image stereoscopic vision, and printerUS20040150670Apr 30, 2003Aug 5, 2004Microsoft CorporationUtility object for specialized data entryUS20060072006Oct 5, 2004Apr 6, 2006Lin Lin3D stereo display method and a device thereofUS20060146003 *Dec 31, 2004Jul 6, 2006Intel CorporationImage adaptation phase-inUS20070229395Aug 4, 2006Oct 4, 2007Nvidia CorporationSystem, method, and computer program product for controlling stereo glasses shuttersUS20090132951Jan 23, 2009May 21, 2009Microsoft CorporationUtility object for specialized data entryUS20090150776Jan 23, 2009Jun 11, 2009Microsoft CorporationUtility object for specialized data entryUS20090150777Jan 23, 2009Jun 11, 2009Microsoft CorporationUtility object for specialized data entryUS20100201791Apr 22, 2010Aug 12, 2010Slavenburg Gerrit ASystem, method, and computer program product for controlling stereo glasses shuttersUS20100231696May 25, 2010Sep 16, 2010Slavenburg Gerrit ASystem, method, and computer program product for controlling stereo glasses shuttersUS20110012904Sep 28, 2010Jan 20, 2011Nvidia CorporationSystem, method, and computer program product for controlling stereo glasses shuttersJP2000004451A Title not availableJP2000284224A Title not availableJP2001045524A Title not availableJP2001154640A Title not availableJP2007110683A Title not availableJPH0951552A Title not availableJPS6473892A Title not availableKR20040001831A Title not availableKR20060076662A Title not availableKR20070077863A Title not availableWO1999031884A1Dec 15, 1998Jun 24, 1999Macrovision CorpMethod and apparatus for improved horizontal and vertical overlay signals for greater concealment in modern tv sets* Cited by examinerNon-Patent CitationsReference1"i-O Display Systems" http://www.i-glassesstore.com/index.html p. 1-2.2Decision to Grant from Japanese Patent Application No. 2009-502980, dated Sep. 20, 2011.3Examination Report from European Patent Application No. 07754251.2 dated Dec. 7, 2010.4Extended European Search Report from European Patent Application No. 07754251.2 dated Sep. 9, 2009.5Final Office Action from U.S. Appl. No. 11/462,529 dated Dec. 2, 2009.6International Search Report and Written Opinion from International Application No. PCT/US07/07702 mailed Apr. 2, 2008.7International Telecommunication Union: "Characteristics of B,G/PAL and M/NTSC Television System (Excerpt from ITU-R BT.470-5)," Feb. 1998, retrieved from http://www.kolumbus.fi/pami1/video/pal-ntsc.html on Jun. 8, 2011.8International Telecommunication Union: "Characteristics of B,G/PAL and M/NTSC Television System (Excerpt from ITU-R BT.470-5)," Feb. 1998, retrieved from http://www.kolumbus.fi/pami1/video/pal�ntsc.html on Jun. 8, 2011.9Non-Final Office Action from U.S. Appl. No. 11/462,529 dated Apr. 16, 2009.10Notice of Allowance from Korean Patent Application No. 10-2010-0092504, dated Sep. 28, 2011.11Notice of Allowance from U.S. Appl. No. 11/462,529 dated Feb. 8, 2010.12Notice of Grant of Patent Right for Invention from Chinese Patent Application No. 200780001629.6, dated Aug. 13, 2010.13Notice of Preliminary Rejection from Korean Patent Application No. 10-2007-0031168 dated Jul. 22, 2010.14Notice of Preliminary Rejection from Korean Patent Application No. 10-2010-0092504 dated Dec. 28, 2010.15Notice of Reasons for Final Rejection from Japanese Patent Application No. 2009-502980 dated Jun. 21, 2011.16Notice of Reasons for Rejection from Japanese Patent Application No. 2009-502980 dated Feb. 8, 2011.17Office Action from Canadian Patent Application No. 2,646,439, dated Oct. 28, 2011.18Office Action from Chinese Application No. 201010522450.9, dated Dec. 23, 2011.19Office Action from Chinese Patent Application No. 200780001629.6 dated Feb. 24, 2010.20Office Action from Taiwan Patent Application No. 096111054, dated Oct. 31, 2011.21U.S. Appl. No. 11/045,239, filed Jan. 27, 2005.22U.S. Appl. No. 11/531,995, filed Sep. 14, 2006.23U.S. Appl. No. 11/532,005, filed Sep. 14, 2006.24U.S. Appl. No. 13/247,907, filed Sep. 28, 2011.25U.S. Appl. No. 13/248,960, filed Sep. 29, 2011.26U.S. Appl. No. 13/311,451, filed Dec. 5, 2011.27U.S. Appl. No. 61/387,947, filed Sep. 29, 2010.28U.S. Appl. No. 61/387,948, filed Sep. 29, 2010.29Video Electronics Standards Association, "Coordinated Video Timings Standard," version 1.1, Sep. 10, 2003, retrieved from http://web.archive.org/web/20040204215505/http://www.vesa.org/summary/sumcvt.htm on Jun. 8, 2011.Referenced byCiting PatentFiling datePublication dateApplicantTitleUS20120147020 *Dec 13, 2010Jun 14, 2012Ati Technologies UlcMethod and apparatus for providing indication of a static frame* Cited by examinerClassifications U.S. Classification348/46, 348/524, 345/6, 348/614, 345/102, 345/473International ClassificationH04N5/05, G06T13/00, H04N5/45, G09G5/00, H04N13/02, H04N5/00, G09G3/36Cooperative ClassificationG09G3/20, H04N13/0438, G09G3/3406, G09G3/003, G09G2360/02, H04N13/0497, G09G3/36, G09G2370/047, G09G2310/08, G09G5/12European ClassificationH04N13/04Y, H04N13/04G7, G09G3/20, G09G3/00B4Legal EventsDateCodeEventDescriptionAug 4, 2006ASAssignmentOwner name: NVIDIA CORPORATION, CALIFORNIAFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SLAVENBURG, GERRIT A.;FOX, THOMAS F.;COOK, DAVID ROBERT;REEL/FRAME:018067/0406;SIGNING DATES FROM 20060727 TO 20060803Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SLAVENBURG, GERRIT A.;FOX, THOMAS F.;COOK, DAVID ROBERT;SIGNING DATES FROM 20060727 TO 20060803;REEL/FRAME:018067/0406RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google